mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (25 commits) GFS2: Merge gfs2_get_sb into gfs2_get_sb_meta GFS2: Fix cache coherency between truncate and O_DIRECT read GFS2: Fix locking issue mounting gfs2meta fs GFS2: Remove unused variable GFS2: smbd proccess hangs with flock() call. GFS2: Remove args subdir from gfs2 sysfs files GFS2: Remove lockstruct subdir from gfs2 sysfs files GFS2: Move gfs2_unlink_ok into ops_inode.c GFS2: Move gfs2_readlinki into ops_inode.c GFS2: Move gfs2_rmdiri into ops_inode.c GFS2: Merge mount.c and ops_super.c into super.c GFS2: Clean up some file names GFS2: Be more aggressive in reclaiming unlinked inodes GFS2: Add a rgrp bitmap full flag GFS2: Improve resource group error handling GFS2: Don't warn when delete inode fails on ro filesystem GFS2: Update docs GFS2: Umount recovery race fix GFS2: Remove a couple of unused sysfs entries GFS2: Add commit= mount option ...
This commit is contained in:
commit
0a33f80a83
33 changed files with 1539 additions and 1589 deletions
|
@ -60,7 +60,7 @@ go_lock | Called for the first local holder of a lock
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go_unlock | Called on the final local unlock of a lock
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go_dump | Called to print content of object for debugfs file, or on
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| error to dump glock to the log.
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go_type; | The type of the glock, LM_TYPE_.....
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go_type | The type of the glock, LM_TYPE_.....
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go_min_hold_time | The minimum hold time
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The minimum hold time for each lock is the time after a remote lock
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|
|
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@ -11,18 +11,15 @@ their I/O so file system consistency is maintained. One of the nifty
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features of GFS is perfect consistency -- changes made to the file system
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on one machine show up immediately on all other machines in the cluster.
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GFS uses interchangable inter-node locking mechanisms. Different lock
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modules can plug into GFS and each file system selects the appropriate
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lock module at mount time. Lock modules include:
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GFS uses interchangable inter-node locking mechanisms, the currently
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supported mechanisms are:
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lock_nolock -- allows gfs to be used as a local file system
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lock_dlm -- uses a distributed lock manager (dlm) for inter-node locking
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The dlm is found at linux/fs/dlm/
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In addition to interfacing with an external locking manager, a gfs lock
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module is responsible for interacting with external cluster management
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systems. Lock_dlm depends on user space cluster management systems found
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Lock_dlm depends on user space cluster management systems found
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at the URL above.
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To use gfs as a local file system, no external clustering systems are
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@ -31,13 +28,19 @@ needed, simply:
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$ mkfs -t gfs2 -p lock_nolock -j 1 /dev/block_device
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$ mount -t gfs2 /dev/block_device /dir
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GFS2 is not on-disk compatible with previous versions of GFS.
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If you are using Fedora, you need to install the gfs2-utils package
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and, for lock_dlm, you will also need to install the cman package
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and write a cluster.conf as per the documentation.
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GFS2 is not on-disk compatible with previous versions of GFS, but it
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is pretty close.
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The following man pages can be found at the URL above:
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gfs2_fsck to repair a filesystem
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fsck.gfs2 to repair a filesystem
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gfs2_grow to expand a filesystem online
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gfs2_jadd to add journals to a filesystem online
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gfs2_tool to manipulate, examine and tune a filesystem
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gfs2_quota to examine and change quota values in a filesystem
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gfs2_convert to convert a gfs filesystem to gfs2 in-place
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mount.gfs2 to help mount(8) mount a filesystem
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mkfs.gfs2 to make a filesystem
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|
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@ -7,6 +7,7 @@ config GFS2_FS
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select IP_SCTP if DLM_SCTP
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select FS_POSIX_ACL
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select CRC32
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select SLOW_WORK
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help
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A cluster filesystem.
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|
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@ -1,8 +1,8 @@
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obj-$(CONFIG_GFS2_FS) += gfs2.o
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gfs2-y := acl.o bmap.o dir.o eaops.o eattr.o glock.o \
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glops.o inode.o log.o lops.o main.o meta_io.o \
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mount.o ops_address.o ops_dentry.o ops_export.o ops_file.o \
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ops_fstype.o ops_inode.o ops_super.o quota.o \
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aops.o dentry.o export.o file.o \
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ops_fstype.o ops_inode.o quota.o \
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recovery.o rgrp.o super.o sys.o trans.o util.o
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gfs2-$(CONFIG_GFS2_FS_LOCKING_DLM) += lock_dlm.o
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|
|
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@ -28,7 +28,6 @@
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#include "inode.h"
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#include "log.h"
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#include "meta_io.h"
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#include "ops_address.h"
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#include "quota.h"
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#include "trans.h"
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#include "rgrp.h"
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@ -781,10 +780,12 @@ static int gfs2_stuffed_write_end(struct inode *inode, struct buffer_head *dibh,
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unlock_page(page);
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page_cache_release(page);
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if (inode->i_size < to) {
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i_size_write(inode, to);
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ip->i_disksize = inode->i_size;
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di->di_size = cpu_to_be64(inode->i_size);
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if (copied) {
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if (inode->i_size < to) {
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i_size_write(inode, to);
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ip->i_disksize = inode->i_size;
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}
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gfs2_dinode_out(ip, di);
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mark_inode_dirty(inode);
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}
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|
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|
@ -824,7 +825,6 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping,
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struct gfs2_sbd *sdp = GFS2_SB(inode);
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struct buffer_head *dibh;
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struct gfs2_alloc *al = ip->i_alloc;
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struct gfs2_dinode *di;
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unsigned int from = pos & (PAGE_CACHE_SIZE - 1);
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unsigned int to = from + len;
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int ret;
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|
@ -847,11 +847,10 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping,
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gfs2_page_add_databufs(ip, page, from, to);
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ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata);
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if (likely(ret >= 0) && (inode->i_size > ip->i_disksize)) {
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di = (struct gfs2_dinode *)dibh->b_data;
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ip->i_disksize = inode->i_size;
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di->di_size = cpu_to_be64(inode->i_size);
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if (ret > 0) {
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if (inode->i_size > ip->i_disksize)
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ip->i_disksize = inode->i_size;
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gfs2_dinode_out(ip, dibh->b_data);
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mark_inode_dirty(inode);
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}
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|
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@ -25,7 +25,6 @@
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#include "trans.h"
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#include "dir.h"
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#include "util.h"
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#include "ops_address.h"
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/* This doesn't need to be that large as max 64 bit pointers in a 4k
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* block is 512, so __u16 is fine for that. It saves stack space to
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@ -136,7 +135,9 @@ int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page)
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and write it out to disk */
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unsigned int n = 1;
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block = gfs2_alloc_block(ip, &n);
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error = gfs2_alloc_block(ip, &block, &n);
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if (error)
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goto out_brelse;
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if (isdir) {
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gfs2_trans_add_unrevoke(GFS2_SB(&ip->i_inode), block, 1);
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error = gfs2_dir_get_new_buffer(ip, block, &bh);
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@ -476,8 +477,11 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
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blks = dblks + iblks;
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i = sheight;
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do {
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int error;
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n = blks - alloced;
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bn = gfs2_alloc_block(ip, &n);
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error = gfs2_alloc_block(ip, &bn, &n);
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if (error)
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return error;
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alloced += n;
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if (state != ALLOC_DATA || gfs2_is_jdata(ip))
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gfs2_trans_add_unrevoke(sdp, bn, n);
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@ -1008,7 +1012,7 @@ static int gfs2_block_truncate_page(struct address_space *mapping)
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gfs2_trans_add_bh(ip->i_gl, bh, 0);
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zero_user(page, offset, length);
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mark_buffer_dirty(bh);
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unlock:
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unlock_page(page);
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page_cache_release(page);
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|
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@ -803,13 +803,20 @@ static struct gfs2_leaf *new_leaf(struct inode *inode, struct buffer_head **pbh,
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{
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struct gfs2_inode *ip = GFS2_I(inode);
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unsigned int n = 1;
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u64 bn = gfs2_alloc_block(ip, &n);
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struct buffer_head *bh = gfs2_meta_new(ip->i_gl, bn);
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u64 bn;
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int error;
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struct buffer_head *bh;
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struct gfs2_leaf *leaf;
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struct gfs2_dirent *dent;
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struct qstr name = { .name = "", .len = 0, .hash = 0 };
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error = gfs2_alloc_block(ip, &bn, &n);
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if (error)
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return NULL;
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bh = gfs2_meta_new(ip->i_gl, bn);
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if (!bh)
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return NULL;
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gfs2_trans_add_unrevoke(GFS2_SB(inode), bn, 1);
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gfs2_trans_add_bh(ip->i_gl, bh, 1);
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gfs2_metatype_set(bh, GFS2_METATYPE_LF, GFS2_FORMAT_LF);
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|
|
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@ -582,8 +582,11 @@ static int ea_alloc_blk(struct gfs2_inode *ip, struct buffer_head **bhp)
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struct gfs2_ea_header *ea;
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unsigned int n = 1;
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u64 block;
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int error;
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block = gfs2_alloc_block(ip, &n);
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error = gfs2_alloc_block(ip, &block, &n);
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if (error)
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return error;
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gfs2_trans_add_unrevoke(sdp, block, 1);
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*bhp = gfs2_meta_new(ip->i_gl, block);
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gfs2_trans_add_bh(ip->i_gl, *bhp, 1);
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|
@ -617,6 +620,7 @@ static int ea_write(struct gfs2_inode *ip, struct gfs2_ea_header *ea,
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struct gfs2_ea_request *er)
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{
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struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
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int error;
|
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|
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ea->ea_data_len = cpu_to_be32(er->er_data_len);
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ea->ea_name_len = er->er_name_len;
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|
@ -642,7 +646,9 @@ static int ea_write(struct gfs2_inode *ip, struct gfs2_ea_header *ea,
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int mh_size = sizeof(struct gfs2_meta_header);
|
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unsigned int n = 1;
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|
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block = gfs2_alloc_block(ip, &n);
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error = gfs2_alloc_block(ip, &block, &n);
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if (error)
|
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return error;
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gfs2_trans_add_unrevoke(sdp, block, 1);
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bh = gfs2_meta_new(ip->i_gl, block);
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gfs2_trans_add_bh(ip->i_gl, bh, 1);
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|
@ -963,7 +969,9 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
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} else {
|
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u64 blk;
|
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unsigned int n = 1;
|
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blk = gfs2_alloc_block(ip, &n);
|
||||
error = gfs2_alloc_block(ip, &blk, &n);
|
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if (error)
|
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return error;
|
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gfs2_trans_add_unrevoke(sdp, blk, 1);
|
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indbh = gfs2_meta_new(ip->i_gl, blk);
|
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gfs2_trans_add_bh(ip->i_gl, indbh, 1);
|
||||
|
|
|
@ -39,7 +39,6 @@
|
|||
#include "trans.h"
|
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#include "util.h"
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#include "eaops.h"
|
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#include "ops_address.h"
|
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|
||||
/**
|
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* gfs2_llseek - seek to a location in a file
|
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|
@ -425,33 +424,36 @@ static struct vm_operations_struct gfs2_vm_ops = {
|
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.page_mkwrite = gfs2_page_mkwrite,
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* gfs2_mmap -
|
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* @file: The file to map
|
||||
* @vma: The VMA which described the mapping
|
||||
*
|
||||
* Returns: 0 or error code
|
||||
* There is no need to get a lock here unless we should be updating
|
||||
* atime. We ignore any locking errors since the only consequence is
|
||||
* a missed atime update (which will just be deferred until later).
|
||||
*
|
||||
* Returns: 0
|
||||
*/
|
||||
|
||||
static int gfs2_mmap(struct file *file, struct vm_area_struct *vma)
|
||||
{
|
||||
struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
|
||||
struct gfs2_holder i_gh;
|
||||
int error;
|
||||
|
||||
gfs2_holder_init(ip->i_gl, LM_ST_SHARED, 0, &i_gh);
|
||||
error = gfs2_glock_nq(&i_gh);
|
||||
if (error) {
|
||||
gfs2_holder_uninit(&i_gh);
|
||||
return error;
|
||||
if (!(file->f_flags & O_NOATIME)) {
|
||||
struct gfs2_holder i_gh;
|
||||
int error;
|
||||
|
||||
gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &i_gh);
|
||||
error = gfs2_glock_nq(&i_gh);
|
||||
file_accessed(file);
|
||||
if (error == 0)
|
||||
gfs2_glock_dq_uninit(&i_gh);
|
||||
}
|
||||
|
||||
vma->vm_ops = &gfs2_vm_ops;
|
||||
vma->vm_flags |= VM_CAN_NONLINEAR;
|
||||
|
||||
gfs2_glock_dq_uninit(&i_gh);
|
||||
|
||||
return error;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -692,12 +694,10 @@ static void do_unflock(struct file *file, struct file_lock *fl)
|
|||
|
||||
static int gfs2_flock(struct file *file, int cmd, struct file_lock *fl)
|
||||
{
|
||||
struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
|
||||
|
||||
if (!(fl->fl_flags & FL_FLOCK))
|
||||
return -ENOLCK;
|
||||
if (__mandatory_lock(&ip->i_inode))
|
||||
return -ENOLCK;
|
||||
if (fl->fl_type & LOCK_MAND)
|
||||
return -EOPNOTSUPP;
|
||||
|
||||
if (fl->fl_type == F_UNLCK) {
|
||||
do_unflock(file, fl);
|
|
@ -796,22 +796,37 @@ void gfs2_holder_uninit(struct gfs2_holder *gh)
|
|||
gh->gh_ip = 0;
|
||||
}
|
||||
|
||||
static int just_schedule(void *word)
|
||||
/**
|
||||
* gfs2_glock_holder_wait
|
||||
* @word: unused
|
||||
*
|
||||
* This function and gfs2_glock_demote_wait both show up in the WCHAN
|
||||
* field. Thus I've separated these otherwise identical functions in
|
||||
* order to be more informative to the user.
|
||||
*/
|
||||
|
||||
static int gfs2_glock_holder_wait(void *word)
|
||||
{
|
||||
schedule();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int gfs2_glock_demote_wait(void *word)
|
||||
{
|
||||
schedule();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void wait_on_holder(struct gfs2_holder *gh)
|
||||
{
|
||||
might_sleep();
|
||||
wait_on_bit(&gh->gh_iflags, HIF_WAIT, just_schedule, TASK_UNINTERRUPTIBLE);
|
||||
wait_on_bit(&gh->gh_iflags, HIF_WAIT, gfs2_glock_holder_wait, TASK_UNINTERRUPTIBLE);
|
||||
}
|
||||
|
||||
static void wait_on_demote(struct gfs2_glock *gl)
|
||||
{
|
||||
might_sleep();
|
||||
wait_on_bit(&gl->gl_flags, GLF_DEMOTE, just_schedule, TASK_UNINTERRUPTIBLE);
|
||||
wait_on_bit(&gl->gl_flags, GLF_DEMOTE, gfs2_glock_demote_wait, TASK_UNINTERRUPTIBLE);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
@ -309,24 +309,6 @@ static void rgrp_go_unlock(struct gfs2_holder *gh)
|
|||
gfs2_rgrp_bh_put(gh->gh_gl->gl_object);
|
||||
}
|
||||
|
||||
/**
|
||||
* rgrp_go_dump - print out an rgrp
|
||||
* @seq: The iterator
|
||||
* @gl: The glock in question
|
||||
*
|
||||
*/
|
||||
|
||||
static int rgrp_go_dump(struct seq_file *seq, const struct gfs2_glock *gl)
|
||||
{
|
||||
const struct gfs2_rgrpd *rgd = gl->gl_object;
|
||||
if (rgd == NULL)
|
||||
return 0;
|
||||
gfs2_print_dbg(seq, " R: n:%llu f:%02x b:%u/%u i:%u\n",
|
||||
(unsigned long long)rgd->rd_addr, rgd->rd_flags,
|
||||
rgd->rd_free, rgd->rd_free_clone, rgd->rd_dinodes);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* trans_go_sync - promote/demote the transaction glock
|
||||
* @gl: the glock
|
||||
|
@ -410,7 +392,7 @@ const struct gfs2_glock_operations gfs2_rgrp_glops = {
|
|||
.go_demote_ok = rgrp_go_demote_ok,
|
||||
.go_lock = rgrp_go_lock,
|
||||
.go_unlock = rgrp_go_unlock,
|
||||
.go_dump = rgrp_go_dump,
|
||||
.go_dump = gfs2_rgrp_dump,
|
||||
.go_type = LM_TYPE_RGRP,
|
||||
.go_min_hold_time = HZ / 5,
|
||||
};
|
||||
|
|
|
@ -12,6 +12,7 @@
|
|||
|
||||
#include <linux/fs.h>
|
||||
#include <linux/workqueue.h>
|
||||
#include <linux/slow-work.h>
|
||||
#include <linux/dlm.h>
|
||||
#include <linux/buffer_head.h>
|
||||
|
||||
|
@ -63,9 +64,12 @@ struct gfs2_log_element {
|
|||
const struct gfs2_log_operations *le_ops;
|
||||
};
|
||||
|
||||
#define GBF_FULL 1
|
||||
|
||||
struct gfs2_bitmap {
|
||||
struct buffer_head *bi_bh;
|
||||
char *bi_clone;
|
||||
unsigned long bi_flags;
|
||||
u32 bi_offset;
|
||||
u32 bi_start;
|
||||
u32 bi_len;
|
||||
|
@ -90,10 +94,11 @@ struct gfs2_rgrpd {
|
|||
struct gfs2_sbd *rd_sbd;
|
||||
unsigned int rd_bh_count;
|
||||
u32 rd_last_alloc;
|
||||
unsigned char rd_flags;
|
||||
#define GFS2_RDF_CHECK 0x01 /* Need to check for unlinked inodes */
|
||||
#define GFS2_RDF_NOALLOC 0x02 /* rg prohibits allocation */
|
||||
#define GFS2_RDF_UPTODATE 0x04 /* rg is up to date */
|
||||
u32 rd_flags;
|
||||
#define GFS2_RDF_CHECK 0x10000000 /* check for unlinked inodes */
|
||||
#define GFS2_RDF_UPTODATE 0x20000000 /* rg is up to date */
|
||||
#define GFS2_RDF_ERROR 0x40000000 /* error in rg */
|
||||
#define GFS2_RDF_MASK 0xf0000000 /* mask for internal flags */
|
||||
};
|
||||
|
||||
enum gfs2_state_bits {
|
||||
|
@ -376,11 +381,11 @@ struct gfs2_journal_extent {
|
|||
struct gfs2_jdesc {
|
||||
struct list_head jd_list;
|
||||
struct list_head extent_list;
|
||||
|
||||
struct slow_work jd_work;
|
||||
struct inode *jd_inode;
|
||||
unsigned long jd_flags;
|
||||
#define JDF_RECOVERY 1
|
||||
unsigned int jd_jid;
|
||||
int jd_dirty;
|
||||
|
||||
unsigned int jd_blocks;
|
||||
};
|
||||
|
||||
|
@ -390,9 +395,6 @@ struct gfs2_statfs_change_host {
|
|||
s64 sc_dinodes;
|
||||
};
|
||||
|
||||
#define GFS2_GLOCKD_DEFAULT 1
|
||||
#define GFS2_GLOCKD_MAX 16
|
||||
|
||||
#define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF
|
||||
#define GFS2_QUOTA_OFF 0
|
||||
#define GFS2_QUOTA_ACCOUNT 1
|
||||
|
@ -418,6 +420,7 @@ struct gfs2_args {
|
|||
unsigned int ar_data:2; /* ordered/writeback */
|
||||
unsigned int ar_meta:1; /* mount metafs */
|
||||
unsigned int ar_discard:1; /* discard requests */
|
||||
int ar_commit; /* Commit interval */
|
||||
};
|
||||
|
||||
struct gfs2_tune {
|
||||
|
@ -426,7 +429,6 @@ struct gfs2_tune {
|
|||
unsigned int gt_incore_log_blocks;
|
||||
unsigned int gt_log_flush_secs;
|
||||
|
||||
unsigned int gt_recoverd_secs;
|
||||
unsigned int gt_logd_secs;
|
||||
|
||||
unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */
|
||||
|
@ -447,6 +449,7 @@ enum {
|
|||
SDF_JOURNAL_LIVE = 1,
|
||||
SDF_SHUTDOWN = 2,
|
||||
SDF_NOBARRIERS = 3,
|
||||
SDF_NORECOVERY = 4,
|
||||
};
|
||||
|
||||
#define GFS2_FSNAME_LEN 256
|
||||
|
@ -493,7 +496,6 @@ struct lm_lockstruct {
|
|||
unsigned long ls_flags;
|
||||
dlm_lockspace_t *ls_dlm;
|
||||
|
||||
int ls_recover_jid;
|
||||
int ls_recover_jid_done;
|
||||
int ls_recover_jid_status;
|
||||
};
|
||||
|
@ -582,7 +584,6 @@ struct gfs2_sbd {
|
|||
|
||||
/* Daemon stuff */
|
||||
|
||||
struct task_struct *sd_recoverd_process;
|
||||
struct task_struct *sd_logd_process;
|
||||
struct task_struct *sd_quotad_process;
|
||||
|
||||
|
|
150
fs/gfs2/inode.c
150
fs/gfs2/inode.c
|
@ -30,7 +30,6 @@
|
|||
#include "inode.h"
|
||||
#include "log.h"
|
||||
#include "meta_io.h"
|
||||
#include "ops_address.h"
|
||||
#include "quota.h"
|
||||
#include "rgrp.h"
|
||||
#include "trans.h"
|
||||
|
@ -1047,154 +1046,7 @@ struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
|
|||
return ERR_PTR(error);
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_rmdiri - Remove a directory
|
||||
* @dip: The parent directory of the directory to be removed
|
||||
* @name: The name of the directory to be removed
|
||||
* @ip: The GFS2 inode of the directory to be removed
|
||||
*
|
||||
* Assumes Glocks on dip and ip are held
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name,
|
||||
struct gfs2_inode *ip)
|
||||
{
|
||||
struct qstr dotname;
|
||||
int error;
|
||||
|
||||
if (ip->i_entries != 2) {
|
||||
if (gfs2_consist_inode(ip))
|
||||
gfs2_dinode_print(ip);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
error = gfs2_dir_del(dip, name);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
error = gfs2_change_nlink(dip, -1);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
gfs2_str2qstr(&dotname, ".");
|
||||
error = gfs2_dir_del(ip, &dotname);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
gfs2_str2qstr(&dotname, "..");
|
||||
error = gfs2_dir_del(ip, &dotname);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
/* It looks odd, but it really should be done twice */
|
||||
error = gfs2_change_nlink(ip, -1);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
error = gfs2_change_nlink(ip, -1);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
/*
|
||||
* gfs2_unlink_ok - check to see that a inode is still in a directory
|
||||
* @dip: the directory
|
||||
* @name: the name of the file
|
||||
* @ip: the inode
|
||||
*
|
||||
* Assumes that the lock on (at least) @dip is held.
|
||||
*
|
||||
* Returns: 0 if the parent/child relationship is correct, errno if it isn't
|
||||
*/
|
||||
|
||||
int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
|
||||
const struct gfs2_inode *ip)
|
||||
{
|
||||
int error;
|
||||
|
||||
if (IS_IMMUTABLE(&ip->i_inode) || IS_APPEND(&ip->i_inode))
|
||||
return -EPERM;
|
||||
|
||||
if ((dip->i_inode.i_mode & S_ISVTX) &&
|
||||
dip->i_inode.i_uid != current_fsuid() &&
|
||||
ip->i_inode.i_uid != current_fsuid() && !capable(CAP_FOWNER))
|
||||
return -EPERM;
|
||||
|
||||
if (IS_APPEND(&dip->i_inode))
|
||||
return -EPERM;
|
||||
|
||||
error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
error = gfs2_dir_check(&dip->i_inode, name, ip);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_readlinki - return the contents of a symlink
|
||||
* @ip: the symlink's inode
|
||||
* @buf: a pointer to the buffer to be filled
|
||||
* @len: a pointer to the length of @buf
|
||||
*
|
||||
* If @buf is too small, a piece of memory is kmalloc()ed and needs
|
||||
* to be freed by the caller.
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len)
|
||||
{
|
||||
struct gfs2_holder i_gh;
|
||||
struct buffer_head *dibh;
|
||||
unsigned int x;
|
||||
int error;
|
||||
|
||||
gfs2_holder_init(ip->i_gl, LM_ST_SHARED, 0, &i_gh);
|
||||
error = gfs2_glock_nq(&i_gh);
|
||||
if (error) {
|
||||
gfs2_holder_uninit(&i_gh);
|
||||
return error;
|
||||
}
|
||||
|
||||
if (!ip->i_disksize) {
|
||||
gfs2_consist_inode(ip);
|
||||
error = -EIO;
|
||||
goto out;
|
||||
}
|
||||
|
||||
error = gfs2_meta_inode_buffer(ip, &dibh);
|
||||
if (error)
|
||||
goto out;
|
||||
|
||||
x = ip->i_disksize + 1;
|
||||
if (x > *len) {
|
||||
*buf = kmalloc(x, GFP_NOFS);
|
||||
if (!*buf) {
|
||||
error = -ENOMEM;
|
||||
goto out_brelse;
|
||||
}
|
||||
}
|
||||
|
||||
memcpy(*buf, dibh->b_data + sizeof(struct gfs2_dinode), x);
|
||||
*len = x;
|
||||
|
||||
out_brelse:
|
||||
brelse(dibh);
|
||||
out:
|
||||
gfs2_glock_dq_uninit(&i_gh);
|
||||
return error;
|
||||
}
|
||||
|
||||
static int
|
||||
__gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr)
|
||||
static int __gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr)
|
||||
{
|
||||
struct buffer_head *dibh;
|
||||
int error;
|
||||
|
|
|
@ -11,8 +11,16 @@
|
|||
#define __INODE_DOT_H__
|
||||
|
||||
#include <linux/fs.h>
|
||||
#include <linux/buffer_head.h>
|
||||
#include <linux/mm.h>
|
||||
#include "util.h"
|
||||
|
||||
extern int gfs2_releasepage(struct page *page, gfp_t gfp_mask);
|
||||
extern int gfs2_internal_read(struct gfs2_inode *ip,
|
||||
struct file_ra_state *ra_state,
|
||||
char *buf, loff_t *pos, unsigned size);
|
||||
extern void gfs2_set_aops(struct inode *inode);
|
||||
|
||||
static inline int gfs2_is_stuffed(const struct gfs2_inode *ip)
|
||||
{
|
||||
return !ip->i_height;
|
||||
|
@ -73,30 +81,26 @@ static inline void gfs2_inum_out(const struct gfs2_inode *ip,
|
|||
}
|
||||
|
||||
|
||||
void gfs2_set_iop(struct inode *inode);
|
||||
struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type,
|
||||
u64 no_addr, u64 no_formal_ino,
|
||||
int skip_freeing);
|
||||
struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr);
|
||||
extern void gfs2_set_iop(struct inode *inode);
|
||||
extern struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type,
|
||||
u64 no_addr, u64 no_formal_ino,
|
||||
int skip_freeing);
|
||||
extern struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr);
|
||||
|
||||
int gfs2_inode_refresh(struct gfs2_inode *ip);
|
||||
extern int gfs2_inode_refresh(struct gfs2_inode *ip);
|
||||
|
||||
int gfs2_dinode_dealloc(struct gfs2_inode *inode);
|
||||
int gfs2_change_nlink(struct gfs2_inode *ip, int diff);
|
||||
struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
|
||||
int is_root);
|
||||
struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
|
||||
unsigned int mode, dev_t dev);
|
||||
int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name,
|
||||
struct gfs2_inode *ip);
|
||||
int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
|
||||
const struct gfs2_inode *ip);
|
||||
int gfs2_permission(struct inode *inode, int mask);
|
||||
int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len);
|
||||
int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr);
|
||||
struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);
|
||||
void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
|
||||
void gfs2_dinode_print(const struct gfs2_inode *ip);
|
||||
extern int gfs2_dinode_dealloc(struct gfs2_inode *inode);
|
||||
extern int gfs2_change_nlink(struct gfs2_inode *ip, int diff);
|
||||
extern struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
|
||||
int is_root);
|
||||
extern struct inode *gfs2_createi(struct gfs2_holder *ghs,
|
||||
const struct qstr *name,
|
||||
unsigned int mode, dev_t dev);
|
||||
extern int gfs2_permission(struct inode *inode, int mask);
|
||||
extern int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr);
|
||||
extern struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);
|
||||
extern void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
|
||||
extern void gfs2_dinode_print(const struct gfs2_inode *ip);
|
||||
|
||||
extern const struct inode_operations gfs2_file_iops;
|
||||
extern const struct inode_operations gfs2_dir_iops;
|
||||
|
|
|
@ -120,7 +120,7 @@ __acquires(&sdp->sd_log_lock)
|
|||
lock_buffer(bh);
|
||||
if (test_clear_buffer_dirty(bh)) {
|
||||
bh->b_end_io = end_buffer_write_sync;
|
||||
submit_bh(WRITE, bh);
|
||||
submit_bh(WRITE_SYNC_PLUG, bh);
|
||||
} else {
|
||||
unlock_buffer(bh);
|
||||
brelse(bh);
|
||||
|
@ -604,7 +604,7 @@ static void log_write_header(struct gfs2_sbd *sdp, u32 flags, int pull)
|
|||
if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags))
|
||||
goto skip_barrier;
|
||||
get_bh(bh);
|
||||
submit_bh(WRITE_BARRIER | (1 << BIO_RW_META), bh);
|
||||
submit_bh(WRITE_SYNC | (1 << BIO_RW_BARRIER) | (1 << BIO_RW_META), bh);
|
||||
wait_on_buffer(bh);
|
||||
if (buffer_eopnotsupp(bh)) {
|
||||
clear_buffer_eopnotsupp(bh);
|
||||
|
@ -664,7 +664,7 @@ static void gfs2_ordered_write(struct gfs2_sbd *sdp)
|
|||
lock_buffer(bh);
|
||||
if (buffer_mapped(bh) && test_clear_buffer_dirty(bh)) {
|
||||
bh->b_end_io = end_buffer_write_sync;
|
||||
submit_bh(WRITE, bh);
|
||||
submit_bh(WRITE_SYNC_PLUG, bh);
|
||||
} else {
|
||||
unlock_buffer(bh);
|
||||
brelse(bh);
|
||||
|
|
|
@ -13,6 +13,8 @@
|
|||
#include <linux/completion.h>
|
||||
#include <linux/buffer_head.h>
|
||||
#include <linux/gfs2_ondisk.h>
|
||||
#include <linux/bio.h>
|
||||
#include <linux/fs.h>
|
||||
|
||||
#include "gfs2.h"
|
||||
#include "incore.h"
|
||||
|
@ -189,7 +191,7 @@ static void buf_lo_before_commit(struct gfs2_sbd *sdp)
|
|||
}
|
||||
|
||||
gfs2_log_unlock(sdp);
|
||||
submit_bh(WRITE, bh);
|
||||
submit_bh(WRITE_SYNC_PLUG, bh);
|
||||
gfs2_log_lock(sdp);
|
||||
|
||||
n = 0;
|
||||
|
@ -199,7 +201,7 @@ static void buf_lo_before_commit(struct gfs2_sbd *sdp)
|
|||
gfs2_log_unlock(sdp);
|
||||
lock_buffer(bd2->bd_bh);
|
||||
bh = gfs2_log_fake_buf(sdp, bd2->bd_bh);
|
||||
submit_bh(WRITE, bh);
|
||||
submit_bh(WRITE_SYNC_PLUG, bh);
|
||||
gfs2_log_lock(sdp);
|
||||
if (++n >= num)
|
||||
break;
|
||||
|
@ -341,7 +343,7 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp)
|
|||
sdp->sd_log_num_revoke--;
|
||||
|
||||
if (offset + sizeof(u64) > sdp->sd_sb.sb_bsize) {
|
||||
submit_bh(WRITE, bh);
|
||||
submit_bh(WRITE_SYNC_PLUG, bh);
|
||||
|
||||
bh = gfs2_log_get_buf(sdp);
|
||||
mh = (struct gfs2_meta_header *)bh->b_data;
|
||||
|
@ -358,7 +360,7 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp)
|
|||
}
|
||||
gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke);
|
||||
|
||||
submit_bh(WRITE, bh);
|
||||
submit_bh(WRITE_SYNC_PLUG, bh);
|
||||
}
|
||||
|
||||
static void revoke_lo_before_scan(struct gfs2_jdesc *jd,
|
||||
|
@ -560,7 +562,7 @@ static void gfs2_write_blocks(struct gfs2_sbd *sdp, struct buffer_head *bh,
|
|||
ptr = bh_log_ptr(bh);
|
||||
|
||||
get_bh(bh);
|
||||
submit_bh(WRITE, bh);
|
||||
submit_bh(WRITE_SYNC_PLUG, bh);
|
||||
gfs2_log_lock(sdp);
|
||||
while(!list_empty(list)) {
|
||||
bd = list_entry(list->next, struct gfs2_bufdata, bd_le.le_list);
|
||||
|
@ -586,7 +588,7 @@ static void gfs2_write_blocks(struct gfs2_sbd *sdp, struct buffer_head *bh,
|
|||
} else {
|
||||
bh1 = gfs2_log_fake_buf(sdp, bd->bd_bh);
|
||||
}
|
||||
submit_bh(WRITE, bh1);
|
||||
submit_bh(WRITE_SYNC_PLUG, bh1);
|
||||
gfs2_log_lock(sdp);
|
||||
ptr += 2;
|
||||
}
|
||||
|
|
|
@ -15,6 +15,7 @@
|
|||
#include <linux/init.h>
|
||||
#include <linux/gfs2_ondisk.h>
|
||||
#include <asm/atomic.h>
|
||||
#include <linux/slow-work.h>
|
||||
|
||||
#include "gfs2.h"
|
||||
#include "incore.h"
|
||||
|
@ -113,12 +114,18 @@ static int __init init_gfs2_fs(void)
|
|||
if (error)
|
||||
goto fail_unregister;
|
||||
|
||||
error = slow_work_register_user();
|
||||
if (error)
|
||||
goto fail_slow;
|
||||
|
||||
gfs2_register_debugfs();
|
||||
|
||||
printk("GFS2 (built %s %s) installed\n", __DATE__, __TIME__);
|
||||
|
||||
return 0;
|
||||
|
||||
fail_slow:
|
||||
unregister_filesystem(&gfs2meta_fs_type);
|
||||
fail_unregister:
|
||||
unregister_filesystem(&gfs2_fs_type);
|
||||
fail:
|
||||
|
@ -156,6 +163,7 @@ static void __exit exit_gfs2_fs(void)
|
|||
gfs2_unregister_debugfs();
|
||||
unregister_filesystem(&gfs2_fs_type);
|
||||
unregister_filesystem(&gfs2meta_fs_type);
|
||||
slow_work_unregister_user();
|
||||
|
||||
kmem_cache_destroy(gfs2_quotad_cachep);
|
||||
kmem_cache_destroy(gfs2_rgrpd_cachep);
|
||||
|
|
|
@ -31,19 +31,66 @@
|
|||
#include "rgrp.h"
|
||||
#include "trans.h"
|
||||
#include "util.h"
|
||||
#include "ops_address.h"
|
||||
|
||||
static int aspace_get_block(struct inode *inode, sector_t lblock,
|
||||
struct buffer_head *bh_result, int create)
|
||||
static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wbc)
|
||||
{
|
||||
gfs2_assert_warn(inode->i_sb->s_fs_info, 0);
|
||||
return -EOPNOTSUPP;
|
||||
}
|
||||
int err;
|
||||
struct buffer_head *bh, *head;
|
||||
int nr_underway = 0;
|
||||
int write_op = (1 << BIO_RW_META) | ((wbc->sync_mode == WB_SYNC_ALL ?
|
||||
WRITE_SYNC_PLUG : WRITE));
|
||||
|
||||
static int gfs2_aspace_writepage(struct page *page,
|
||||
struct writeback_control *wbc)
|
||||
{
|
||||
return block_write_full_page(page, aspace_get_block, wbc);
|
||||
BUG_ON(!PageLocked(page));
|
||||
BUG_ON(!page_has_buffers(page));
|
||||
|
||||
head = page_buffers(page);
|
||||
bh = head;
|
||||
|
||||
do {
|
||||
if (!buffer_mapped(bh))
|
||||
continue;
|
||||
/*
|
||||
* If it's a fully non-blocking write attempt and we cannot
|
||||
* lock the buffer then redirty the page. Note that this can
|
||||
* potentially cause a busy-wait loop from pdflush and kswapd
|
||||
* activity, but those code paths have their own higher-level
|
||||
* throttling.
|
||||
*/
|
||||
if (wbc->sync_mode != WB_SYNC_NONE || !wbc->nonblocking) {
|
||||
lock_buffer(bh);
|
||||
} else if (!trylock_buffer(bh)) {
|
||||
redirty_page_for_writepage(wbc, page);
|
||||
continue;
|
||||
}
|
||||
if (test_clear_buffer_dirty(bh)) {
|
||||
mark_buffer_async_write(bh);
|
||||
} else {
|
||||
unlock_buffer(bh);
|
||||
}
|
||||
} while ((bh = bh->b_this_page) != head);
|
||||
|
||||
/*
|
||||
* The page and its buffers are protected by PageWriteback(), so we can
|
||||
* drop the bh refcounts early.
|
||||
*/
|
||||
BUG_ON(PageWriteback(page));
|
||||
set_page_writeback(page);
|
||||
|
||||
do {
|
||||
struct buffer_head *next = bh->b_this_page;
|
||||
if (buffer_async_write(bh)) {
|
||||
submit_bh(write_op, bh);
|
||||
nr_underway++;
|
||||
}
|
||||
bh = next;
|
||||
} while (bh != head);
|
||||
unlock_page(page);
|
||||
|
||||
err = 0;
|
||||
if (nr_underway == 0)
|
||||
end_page_writeback(page);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static const struct address_space_operations aspace_aops = {
|
||||
|
@ -201,16 +248,32 @@ struct buffer_head *gfs2_meta_new(struct gfs2_glock *gl, u64 blkno)
|
|||
int gfs2_meta_read(struct gfs2_glock *gl, u64 blkno, int flags,
|
||||
struct buffer_head **bhp)
|
||||
{
|
||||
*bhp = gfs2_getbuf(gl, blkno, CREATE);
|
||||
if (!buffer_uptodate(*bhp)) {
|
||||
ll_rw_block(READ_META, 1, bhp);
|
||||
if (flags & DIO_WAIT) {
|
||||
int error = gfs2_meta_wait(gl->gl_sbd, *bhp);
|
||||
if (error) {
|
||||
brelse(*bhp);
|
||||
return error;
|
||||
}
|
||||
}
|
||||
struct gfs2_sbd *sdp = gl->gl_sbd;
|
||||
struct buffer_head *bh;
|
||||
|
||||
if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
|
||||
return -EIO;
|
||||
|
||||
*bhp = bh = gfs2_getbuf(gl, blkno, CREATE);
|
||||
|
||||
lock_buffer(bh);
|
||||
if (buffer_uptodate(bh)) {
|
||||
unlock_buffer(bh);
|
||||
return 0;
|
||||
}
|
||||
bh->b_end_io = end_buffer_read_sync;
|
||||
get_bh(bh);
|
||||
submit_bh(READ_SYNC | (1 << BIO_RW_META), bh);
|
||||
if (!(flags & DIO_WAIT))
|
||||
return 0;
|
||||
|
||||
wait_on_buffer(bh);
|
||||
if (unlikely(!buffer_uptodate(bh))) {
|
||||
struct gfs2_trans *tr = current->journal_info;
|
||||
if (tr && tr->tr_touched)
|
||||
gfs2_io_error_bh(sdp, bh);
|
||||
brelse(bh);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
@ -404,7 +467,7 @@ struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen)
|
|||
if (buffer_uptodate(first_bh))
|
||||
goto out;
|
||||
if (!buffer_locked(first_bh))
|
||||
ll_rw_block(READ_META, 1, &first_bh);
|
||||
ll_rw_block(READ_SYNC | (1 << BIO_RW_META), 1, &first_bh);
|
||||
|
||||
dblock++;
|
||||
extlen--;
|
||||
|
|
185
fs/gfs2/mount.c
185
fs/gfs2/mount.c
|
@ -1,185 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
|
||||
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
|
||||
*
|
||||
* This copyrighted material is made available to anyone wishing to use,
|
||||
* modify, copy, or redistribute it subject to the terms and conditions
|
||||
* of the GNU General Public License version 2.
|
||||
*/
|
||||
|
||||
#include <linux/slab.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/completion.h>
|
||||
#include <linux/buffer_head.h>
|
||||
#include <linux/gfs2_ondisk.h>
|
||||
#include <linux/parser.h>
|
||||
|
||||
#include "gfs2.h"
|
||||
#include "incore.h"
|
||||
#include "super.h"
|
||||
#include "sys.h"
|
||||
#include "util.h"
|
||||
|
||||
enum {
|
||||
Opt_lockproto,
|
||||
Opt_locktable,
|
||||
Opt_hostdata,
|
||||
Opt_spectator,
|
||||
Opt_ignore_local_fs,
|
||||
Opt_localflocks,
|
||||
Opt_localcaching,
|
||||
Opt_debug,
|
||||
Opt_nodebug,
|
||||
Opt_upgrade,
|
||||
Opt_acl,
|
||||
Opt_noacl,
|
||||
Opt_quota_off,
|
||||
Opt_quota_account,
|
||||
Opt_quota_on,
|
||||
Opt_quota,
|
||||
Opt_noquota,
|
||||
Opt_suiddir,
|
||||
Opt_nosuiddir,
|
||||
Opt_data_writeback,
|
||||
Opt_data_ordered,
|
||||
Opt_meta,
|
||||
Opt_discard,
|
||||
Opt_nodiscard,
|
||||
Opt_err,
|
||||
};
|
||||
|
||||
static const match_table_t tokens = {
|
||||
{Opt_lockproto, "lockproto=%s"},
|
||||
{Opt_locktable, "locktable=%s"},
|
||||
{Opt_hostdata, "hostdata=%s"},
|
||||
{Opt_spectator, "spectator"},
|
||||
{Opt_ignore_local_fs, "ignore_local_fs"},
|
||||
{Opt_localflocks, "localflocks"},
|
||||
{Opt_localcaching, "localcaching"},
|
||||
{Opt_debug, "debug"},
|
||||
{Opt_nodebug, "nodebug"},
|
||||
{Opt_upgrade, "upgrade"},
|
||||
{Opt_acl, "acl"},
|
||||
{Opt_noacl, "noacl"},
|
||||
{Opt_quota_off, "quota=off"},
|
||||
{Opt_quota_account, "quota=account"},
|
||||
{Opt_quota_on, "quota=on"},
|
||||
{Opt_quota, "quota"},
|
||||
{Opt_noquota, "noquota"},
|
||||
{Opt_suiddir, "suiddir"},
|
||||
{Opt_nosuiddir, "nosuiddir"},
|
||||
{Opt_data_writeback, "data=writeback"},
|
||||
{Opt_data_ordered, "data=ordered"},
|
||||
{Opt_meta, "meta"},
|
||||
{Opt_discard, "discard"},
|
||||
{Opt_nodiscard, "nodiscard"},
|
||||
{Opt_err, NULL}
|
||||
};
|
||||
|
||||
/**
|
||||
* gfs2_mount_args - Parse mount options
|
||||
* @sdp:
|
||||
* @data:
|
||||
*
|
||||
* Return: errno
|
||||
*/
|
||||
|
||||
int gfs2_mount_args(struct gfs2_sbd *sdp, struct gfs2_args *args, char *options)
|
||||
{
|
||||
char *o;
|
||||
int token;
|
||||
substring_t tmp[MAX_OPT_ARGS];
|
||||
|
||||
/* Split the options into tokens with the "," character and
|
||||
process them */
|
||||
|
||||
while (1) {
|
||||
o = strsep(&options, ",");
|
||||
if (o == NULL)
|
||||
break;
|
||||
if (*o == '\0')
|
||||
continue;
|
||||
|
||||
token = match_token(o, tokens, tmp);
|
||||
switch (token) {
|
||||
case Opt_lockproto:
|
||||
match_strlcpy(args->ar_lockproto, &tmp[0],
|
||||
GFS2_LOCKNAME_LEN);
|
||||
break;
|
||||
case Opt_locktable:
|
||||
match_strlcpy(args->ar_locktable, &tmp[0],
|
||||
GFS2_LOCKNAME_LEN);
|
||||
break;
|
||||
case Opt_hostdata:
|
||||
match_strlcpy(args->ar_hostdata, &tmp[0],
|
||||
GFS2_LOCKNAME_LEN);
|
||||
break;
|
||||
case Opt_spectator:
|
||||
args->ar_spectator = 1;
|
||||
break;
|
||||
case Opt_ignore_local_fs:
|
||||
args->ar_ignore_local_fs = 1;
|
||||
break;
|
||||
case Opt_localflocks:
|
||||
args->ar_localflocks = 1;
|
||||
break;
|
||||
case Opt_localcaching:
|
||||
args->ar_localcaching = 1;
|
||||
break;
|
||||
case Opt_debug:
|
||||
args->ar_debug = 1;
|
||||
break;
|
||||
case Opt_nodebug:
|
||||
args->ar_debug = 0;
|
||||
break;
|
||||
case Opt_upgrade:
|
||||
args->ar_upgrade = 1;
|
||||
break;
|
||||
case Opt_acl:
|
||||
args->ar_posix_acl = 1;
|
||||
break;
|
||||
case Opt_noacl:
|
||||
args->ar_posix_acl = 0;
|
||||
break;
|
||||
case Opt_quota_off:
|
||||
case Opt_noquota:
|
||||
args->ar_quota = GFS2_QUOTA_OFF;
|
||||
break;
|
||||
case Opt_quota_account:
|
||||
args->ar_quota = GFS2_QUOTA_ACCOUNT;
|
||||
break;
|
||||
case Opt_quota_on:
|
||||
case Opt_quota:
|
||||
args->ar_quota = GFS2_QUOTA_ON;
|
||||
break;
|
||||
case Opt_suiddir:
|
||||
args->ar_suiddir = 1;
|
||||
break;
|
||||
case Opt_nosuiddir:
|
||||
args->ar_suiddir = 0;
|
||||
break;
|
||||
case Opt_data_writeback:
|
||||
args->ar_data = GFS2_DATA_WRITEBACK;
|
||||
break;
|
||||
case Opt_data_ordered:
|
||||
args->ar_data = GFS2_DATA_ORDERED;
|
||||
break;
|
||||
case Opt_meta:
|
||||
args->ar_meta = 1;
|
||||
break;
|
||||
case Opt_discard:
|
||||
args->ar_discard = 1;
|
||||
break;
|
||||
case Opt_nodiscard:
|
||||
args->ar_discard = 0;
|
||||
break;
|
||||
case Opt_err:
|
||||
default:
|
||||
fs_info(sdp, "invalid mount option: %s\n", o);
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -1,23 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
|
||||
* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
|
||||
*
|
||||
* This copyrighted material is made available to anyone wishing to use,
|
||||
* modify, copy, or redistribute it subject to the terms and conditions
|
||||
* of the GNU General Public License version 2.
|
||||
*/
|
||||
|
||||
#ifndef __OPS_ADDRESS_DOT_H__
|
||||
#define __OPS_ADDRESS_DOT_H__
|
||||
|
||||
#include <linux/fs.h>
|
||||
#include <linux/buffer_head.h>
|
||||
#include <linux/mm.h>
|
||||
|
||||
extern int gfs2_releasepage(struct page *page, gfp_t gfp_mask);
|
||||
extern int gfs2_internal_read(struct gfs2_inode *ip,
|
||||
struct file_ra_state *ra_state,
|
||||
char *buf, loff_t *pos, unsigned size);
|
||||
extern void gfs2_set_aops(struct inode *inode);
|
||||
|
||||
#endif /* __OPS_ADDRESS_DOT_H__ */
|
|
@ -17,6 +17,7 @@
|
|||
#include <linux/namei.h>
|
||||
#include <linux/mount.h>
|
||||
#include <linux/gfs2_ondisk.h>
|
||||
#include <linux/slow-work.h>
|
||||
|
||||
#include "gfs2.h"
|
||||
#include "incore.h"
|
||||
|
@ -55,8 +56,6 @@ static void gfs2_tune_init(struct gfs2_tune *gt)
|
|||
spin_lock_init(>->gt_spin);
|
||||
|
||||
gt->gt_incore_log_blocks = 1024;
|
||||
gt->gt_log_flush_secs = 60;
|
||||
gt->gt_recoverd_secs = 60;
|
||||
gt->gt_logd_secs = 1;
|
||||
gt->gt_quota_simul_sync = 64;
|
||||
gt->gt_quota_warn_period = 10;
|
||||
|
@ -676,6 +675,7 @@ static int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh)
|
|||
break;
|
||||
|
||||
INIT_LIST_HEAD(&jd->extent_list);
|
||||
slow_work_init(&jd->jd_work, &gfs2_recover_ops);
|
||||
jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1);
|
||||
if (!jd->jd_inode || IS_ERR(jd->jd_inode)) {
|
||||
if (!jd->jd_inode)
|
||||
|
@ -701,14 +701,13 @@ static int init_journal(struct gfs2_sbd *sdp, int undo)
|
|||
{
|
||||
struct inode *master = sdp->sd_master_dir->d_inode;
|
||||
struct gfs2_holder ji_gh;
|
||||
struct task_struct *p;
|
||||
struct gfs2_inode *ip;
|
||||
int jindex = 1;
|
||||
int error = 0;
|
||||
|
||||
if (undo) {
|
||||
jindex = 0;
|
||||
goto fail_recoverd;
|
||||
goto fail_jinode_gh;
|
||||
}
|
||||
|
||||
sdp->sd_jindex = gfs2_lookup_simple(master, "jindex");
|
||||
|
@ -801,18 +800,8 @@ static int init_journal(struct gfs2_sbd *sdp, int undo)
|
|||
gfs2_glock_dq_uninit(&ji_gh);
|
||||
jindex = 0;
|
||||
|
||||
p = kthread_run(gfs2_recoverd, sdp, "gfs2_recoverd");
|
||||
error = IS_ERR(p);
|
||||
if (error) {
|
||||
fs_err(sdp, "can't start recoverd thread: %d\n", error);
|
||||
goto fail_jinode_gh;
|
||||
}
|
||||
sdp->sd_recoverd_process = p;
|
||||
|
||||
return 0;
|
||||
|
||||
fail_recoverd:
|
||||
kthread_stop(sdp->sd_recoverd_process);
|
||||
fail_jinode_gh:
|
||||
if (!sdp->sd_args.ar_spectator)
|
||||
gfs2_glock_dq_uninit(&sdp->sd_jinode_gh);
|
||||
|
@ -1165,6 +1154,7 @@ static int fill_super(struct super_block *sb, void *data, int silent)
|
|||
|
||||
sdp->sd_args.ar_quota = GFS2_QUOTA_DEFAULT;
|
||||
sdp->sd_args.ar_data = GFS2_DATA_DEFAULT;
|
||||
sdp->sd_args.ar_commit = 60;
|
||||
|
||||
error = gfs2_mount_args(sdp, &sdp->sd_args, data);
|
||||
if (error) {
|
||||
|
@ -1172,8 +1162,10 @@ static int fill_super(struct super_block *sb, void *data, int silent)
|
|||
goto fail;
|
||||
}
|
||||
|
||||
if (sdp->sd_args.ar_spectator)
|
||||
if (sdp->sd_args.ar_spectator) {
|
||||
sb->s_flags |= MS_RDONLY;
|
||||
set_bit(SDF_NORECOVERY, &sdp->sd_flags);
|
||||
}
|
||||
if (sdp->sd_args.ar_posix_acl)
|
||||
sb->s_flags |= MS_POSIXACL;
|
||||
|
||||
|
@ -1191,6 +1183,8 @@ static int fill_super(struct super_block *sb, void *data, int silent)
|
|||
GFS2_BASIC_BLOCK_SHIFT;
|
||||
sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift;
|
||||
|
||||
sdp->sd_tune.gt_log_flush_secs = sdp->sd_args.ar_commit;
|
||||
|
||||
error = init_names(sdp, silent);
|
||||
if (error)
|
||||
goto fail;
|
||||
|
@ -1279,9 +1273,22 @@ static int gfs2_get_sb(struct file_system_type *fs_type, int flags,
|
|||
return get_sb_bdev(fs_type, flags, dev_name, data, fill_super, mnt);
|
||||
}
|
||||
|
||||
static struct super_block *get_gfs2_sb(const char *dev_name)
|
||||
static int test_meta_super(struct super_block *s, void *ptr)
|
||||
{
|
||||
struct super_block *sb;
|
||||
struct block_device *bdev = ptr;
|
||||
return (bdev == s->s_bdev);
|
||||
}
|
||||
|
||||
static int set_meta_super(struct super_block *s, void *ptr)
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags,
|
||||
const char *dev_name, void *data, struct vfsmount *mnt)
|
||||
{
|
||||
struct super_block *s;
|
||||
struct gfs2_sbd *sdp;
|
||||
struct path path;
|
||||
int error;
|
||||
|
||||
|
@ -1289,30 +1296,17 @@ static struct super_block *get_gfs2_sb(const char *dev_name)
|
|||
if (error) {
|
||||
printk(KERN_WARNING "GFS2: path_lookup on %s returned error %d\n",
|
||||
dev_name, error);
|
||||
return NULL;
|
||||
return error;
|
||||
}
|
||||
sb = path.dentry->d_inode->i_sb;
|
||||
if (sb && (sb->s_type == &gfs2_fs_type))
|
||||
atomic_inc(&sb->s_active);
|
||||
else
|
||||
sb = NULL;
|
||||
s = sget(&gfs2_fs_type, test_meta_super, set_meta_super,
|
||||
path.dentry->d_inode->i_sb->s_bdev);
|
||||
path_put(&path);
|
||||
return sb;
|
||||
}
|
||||
|
||||
static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags,
|
||||
const char *dev_name, void *data, struct vfsmount *mnt)
|
||||
{
|
||||
struct super_block *sb = NULL;
|
||||
struct gfs2_sbd *sdp;
|
||||
|
||||
sb = get_gfs2_sb(dev_name);
|
||||
if (!sb) {
|
||||
if (IS_ERR(s)) {
|
||||
printk(KERN_WARNING "GFS2: gfs2 mount does not exist\n");
|
||||
return -ENOENT;
|
||||
return PTR_ERR(s);
|
||||
}
|
||||
sdp = sb->s_fs_info;
|
||||
mnt->mnt_sb = sb;
|
||||
sdp = s->s_fs_info;
|
||||
mnt->mnt_sb = s;
|
||||
mnt->mnt_root = dget(sdp->sd_master_dir);
|
||||
return 0;
|
||||
}
|
||||
|
|
|
@ -262,6 +262,44 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir,
|
|||
return error;
|
||||
}
|
||||
|
||||
/*
|
||||
* gfs2_unlink_ok - check to see that a inode is still in a directory
|
||||
* @dip: the directory
|
||||
* @name: the name of the file
|
||||
* @ip: the inode
|
||||
*
|
||||
* Assumes that the lock on (at least) @dip is held.
|
||||
*
|
||||
* Returns: 0 if the parent/child relationship is correct, errno if it isn't
|
||||
*/
|
||||
|
||||
static int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
|
||||
const struct gfs2_inode *ip)
|
||||
{
|
||||
int error;
|
||||
|
||||
if (IS_IMMUTABLE(&ip->i_inode) || IS_APPEND(&ip->i_inode))
|
||||
return -EPERM;
|
||||
|
||||
if ((dip->i_inode.i_mode & S_ISVTX) &&
|
||||
dip->i_inode.i_uid != current_fsuid() &&
|
||||
ip->i_inode.i_uid != current_fsuid() && !capable(CAP_FOWNER))
|
||||
return -EPERM;
|
||||
|
||||
if (IS_APPEND(&dip->i_inode))
|
||||
return -EPERM;
|
||||
|
||||
error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
error = gfs2_dir_check(&dip->i_inode, name, ip);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_unlink - Unlink a file
|
||||
* @dir: The inode of the directory containing the file to unlink
|
||||
|
@ -472,6 +510,59 @@ static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode)
|
|||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_rmdiri - Remove a directory
|
||||
* @dip: The parent directory of the directory to be removed
|
||||
* @name: The name of the directory to be removed
|
||||
* @ip: The GFS2 inode of the directory to be removed
|
||||
*
|
||||
* Assumes Glocks on dip and ip are held
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
static int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name,
|
||||
struct gfs2_inode *ip)
|
||||
{
|
||||
struct qstr dotname;
|
||||
int error;
|
||||
|
||||
if (ip->i_entries != 2) {
|
||||
if (gfs2_consist_inode(ip))
|
||||
gfs2_dinode_print(ip);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
error = gfs2_dir_del(dip, name);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
error = gfs2_change_nlink(dip, -1);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
gfs2_str2qstr(&dotname, ".");
|
||||
error = gfs2_dir_del(ip, &dotname);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
gfs2_str2qstr(&dotname, "..");
|
||||
error = gfs2_dir_del(ip, &dotname);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
/* It looks odd, but it really should be done twice */
|
||||
error = gfs2_change_nlink(ip, -1);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
error = gfs2_change_nlink(ip, -1);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_rmdir - Remove a directory
|
||||
* @dir: The parent directory of the directory to be removed
|
||||
|
@ -884,6 +975,61 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
|
|||
return error;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_readlinki - return the contents of a symlink
|
||||
* @ip: the symlink's inode
|
||||
* @buf: a pointer to the buffer to be filled
|
||||
* @len: a pointer to the length of @buf
|
||||
*
|
||||
* If @buf is too small, a piece of memory is kmalloc()ed and needs
|
||||
* to be freed by the caller.
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
static int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len)
|
||||
{
|
||||
struct gfs2_holder i_gh;
|
||||
struct buffer_head *dibh;
|
||||
unsigned int x;
|
||||
int error;
|
||||
|
||||
gfs2_holder_init(ip->i_gl, LM_ST_SHARED, 0, &i_gh);
|
||||
error = gfs2_glock_nq(&i_gh);
|
||||
if (error) {
|
||||
gfs2_holder_uninit(&i_gh);
|
||||
return error;
|
||||
}
|
||||
|
||||
if (!ip->i_disksize) {
|
||||
gfs2_consist_inode(ip);
|
||||
error = -EIO;
|
||||
goto out;
|
||||
}
|
||||
|
||||
error = gfs2_meta_inode_buffer(ip, &dibh);
|
||||
if (error)
|
||||
goto out;
|
||||
|
||||
x = ip->i_disksize + 1;
|
||||
if (x > *len) {
|
||||
*buf = kmalloc(x, GFP_NOFS);
|
||||
if (!*buf) {
|
||||
error = -ENOMEM;
|
||||
goto out_brelse;
|
||||
}
|
||||
}
|
||||
|
||||
memcpy(*buf, dibh->b_data + sizeof(struct gfs2_dinode), x);
|
||||
*len = x;
|
||||
|
||||
out_brelse:
|
||||
brelse(dibh);
|
||||
out:
|
||||
gfs2_glock_dq_uninit(&i_gh);
|
||||
return error;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_readlink - Read the value of a symlink
|
||||
* @dentry: the symlink
|
||||
|
|
|
@ -1,723 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
|
||||
* Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
|
||||
*
|
||||
* This copyrighted material is made available to anyone wishing to use,
|
||||
* modify, copy, or redistribute it subject to the terms and conditions
|
||||
* of the GNU General Public License version 2.
|
||||
*/
|
||||
|
||||
#include <linux/sched.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/completion.h>
|
||||
#include <linux/buffer_head.h>
|
||||
#include <linux/statfs.h>
|
||||
#include <linux/seq_file.h>
|
||||
#include <linux/mount.h>
|
||||
#include <linux/kthread.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/gfs2_ondisk.h>
|
||||
#include <linux/crc32.h>
|
||||
#include <linux/time.h>
|
||||
|
||||
#include "gfs2.h"
|
||||
#include "incore.h"
|
||||
#include "glock.h"
|
||||
#include "inode.h"
|
||||
#include "log.h"
|
||||
#include "quota.h"
|
||||
#include "recovery.h"
|
||||
#include "rgrp.h"
|
||||
#include "super.h"
|
||||
#include "sys.h"
|
||||
#include "util.h"
|
||||
#include "trans.h"
|
||||
#include "dir.h"
|
||||
#include "eattr.h"
|
||||
#include "bmap.h"
|
||||
#include "meta_io.h"
|
||||
|
||||
#define args_neq(a1, a2, x) ((a1)->ar_##x != (a2)->ar_##x)
|
||||
|
||||
/**
|
||||
* gfs2_write_inode - Make sure the inode is stable on the disk
|
||||
* @inode: The inode
|
||||
* @sync: synchronous write flag
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
static int gfs2_write_inode(struct inode *inode, int sync)
|
||||
{
|
||||
struct gfs2_inode *ip = GFS2_I(inode);
|
||||
struct gfs2_sbd *sdp = GFS2_SB(inode);
|
||||
struct gfs2_holder gh;
|
||||
struct buffer_head *bh;
|
||||
struct timespec atime;
|
||||
struct gfs2_dinode *di;
|
||||
int ret = 0;
|
||||
|
||||
/* Check this is a "normal" inode, etc */
|
||||
if (!test_bit(GIF_USER, &ip->i_flags) ||
|
||||
(current->flags & PF_MEMALLOC))
|
||||
return 0;
|
||||
ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
|
||||
if (ret)
|
||||
goto do_flush;
|
||||
ret = gfs2_trans_begin(sdp, RES_DINODE, 0);
|
||||
if (ret)
|
||||
goto do_unlock;
|
||||
ret = gfs2_meta_inode_buffer(ip, &bh);
|
||||
if (ret == 0) {
|
||||
di = (struct gfs2_dinode *)bh->b_data;
|
||||
atime.tv_sec = be64_to_cpu(di->di_atime);
|
||||
atime.tv_nsec = be32_to_cpu(di->di_atime_nsec);
|
||||
if (timespec_compare(&inode->i_atime, &atime) > 0) {
|
||||
gfs2_trans_add_bh(ip->i_gl, bh, 1);
|
||||
gfs2_dinode_out(ip, bh->b_data);
|
||||
}
|
||||
brelse(bh);
|
||||
}
|
||||
gfs2_trans_end(sdp);
|
||||
do_unlock:
|
||||
gfs2_glock_dq_uninit(&gh);
|
||||
do_flush:
|
||||
if (sync != 0)
|
||||
gfs2_log_flush(GFS2_SB(inode), ip->i_gl);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_make_fs_ro - Turn a Read-Write FS into a Read-Only one
|
||||
* @sdp: the filesystem
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
static int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
|
||||
{
|
||||
struct gfs2_holder t_gh;
|
||||
int error;
|
||||
|
||||
gfs2_quota_sync(sdp);
|
||||
gfs2_statfs_sync(sdp);
|
||||
|
||||
error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED, GL_NOCACHE,
|
||||
&t_gh);
|
||||
if (error && !test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
|
||||
return error;
|
||||
|
||||
gfs2_meta_syncfs(sdp);
|
||||
gfs2_log_shutdown(sdp);
|
||||
|
||||
clear_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
|
||||
|
||||
if (t_gh.gh_gl)
|
||||
gfs2_glock_dq_uninit(&t_gh);
|
||||
|
||||
gfs2_quota_cleanup(sdp);
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_put_super - Unmount the filesystem
|
||||
* @sb: The VFS superblock
|
||||
*
|
||||
*/
|
||||
|
||||
static void gfs2_put_super(struct super_block *sb)
|
||||
{
|
||||
struct gfs2_sbd *sdp = sb->s_fs_info;
|
||||
int error;
|
||||
|
||||
/* Unfreeze the filesystem, if we need to */
|
||||
|
||||
mutex_lock(&sdp->sd_freeze_lock);
|
||||
if (sdp->sd_freeze_count)
|
||||
gfs2_glock_dq_uninit(&sdp->sd_freeze_gh);
|
||||
mutex_unlock(&sdp->sd_freeze_lock);
|
||||
|
||||
kthread_stop(sdp->sd_quotad_process);
|
||||
kthread_stop(sdp->sd_logd_process);
|
||||
kthread_stop(sdp->sd_recoverd_process);
|
||||
|
||||
if (!(sb->s_flags & MS_RDONLY)) {
|
||||
error = gfs2_make_fs_ro(sdp);
|
||||
if (error)
|
||||
gfs2_io_error(sdp);
|
||||
}
|
||||
/* At this point, we're through modifying the disk */
|
||||
|
||||
/* Release stuff */
|
||||
|
||||
iput(sdp->sd_jindex);
|
||||
iput(sdp->sd_inum_inode);
|
||||
iput(sdp->sd_statfs_inode);
|
||||
iput(sdp->sd_rindex);
|
||||
iput(sdp->sd_quota_inode);
|
||||
|
||||
gfs2_glock_put(sdp->sd_rename_gl);
|
||||
gfs2_glock_put(sdp->sd_trans_gl);
|
||||
|
||||
if (!sdp->sd_args.ar_spectator) {
|
||||
gfs2_glock_dq_uninit(&sdp->sd_journal_gh);
|
||||
gfs2_glock_dq_uninit(&sdp->sd_jinode_gh);
|
||||
gfs2_glock_dq_uninit(&sdp->sd_ir_gh);
|
||||
gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
|
||||
gfs2_glock_dq_uninit(&sdp->sd_qc_gh);
|
||||
iput(sdp->sd_ir_inode);
|
||||
iput(sdp->sd_sc_inode);
|
||||
iput(sdp->sd_qc_inode);
|
||||
}
|
||||
|
||||
gfs2_glock_dq_uninit(&sdp->sd_live_gh);
|
||||
gfs2_clear_rgrpd(sdp);
|
||||
gfs2_jindex_free(sdp);
|
||||
/* Take apart glock structures and buffer lists */
|
||||
gfs2_gl_hash_clear(sdp);
|
||||
/* Unmount the locking protocol */
|
||||
gfs2_lm_unmount(sdp);
|
||||
|
||||
/* At this point, we're through participating in the lockspace */
|
||||
gfs2_sys_fs_del(sdp);
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_write_super
|
||||
* @sb: the superblock
|
||||
*
|
||||
*/
|
||||
|
||||
static void gfs2_write_super(struct super_block *sb)
|
||||
{
|
||||
sb->s_dirt = 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_sync_fs - sync the filesystem
|
||||
* @sb: the superblock
|
||||
*
|
||||
* Flushes the log to disk.
|
||||
*/
|
||||
|
||||
static int gfs2_sync_fs(struct super_block *sb, int wait)
|
||||
{
|
||||
sb->s_dirt = 0;
|
||||
if (wait && sb->s_fs_info)
|
||||
gfs2_log_flush(sb->s_fs_info, NULL);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_freeze - prevent further writes to the filesystem
|
||||
* @sb: the VFS structure for the filesystem
|
||||
*
|
||||
*/
|
||||
|
||||
static int gfs2_freeze(struct super_block *sb)
|
||||
{
|
||||
struct gfs2_sbd *sdp = sb->s_fs_info;
|
||||
int error;
|
||||
|
||||
if (test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
|
||||
return -EINVAL;
|
||||
|
||||
for (;;) {
|
||||
error = gfs2_freeze_fs(sdp);
|
||||
if (!error)
|
||||
break;
|
||||
|
||||
switch (error) {
|
||||
case -EBUSY:
|
||||
fs_err(sdp, "waiting for recovery before freeze\n");
|
||||
break;
|
||||
|
||||
default:
|
||||
fs_err(sdp, "error freezing FS: %d\n", error);
|
||||
break;
|
||||
}
|
||||
|
||||
fs_err(sdp, "retrying...\n");
|
||||
msleep(1000);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_unfreeze - reallow writes to the filesystem
|
||||
* @sb: the VFS structure for the filesystem
|
||||
*
|
||||
*/
|
||||
|
||||
static int gfs2_unfreeze(struct super_block *sb)
|
||||
{
|
||||
gfs2_unfreeze_fs(sb->s_fs_info);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* statfs_fill - fill in the sg for a given RG
|
||||
* @rgd: the RG
|
||||
* @sc: the sc structure
|
||||
*
|
||||
* Returns: 0 on success, -ESTALE if the LVB is invalid
|
||||
*/
|
||||
|
||||
static int statfs_slow_fill(struct gfs2_rgrpd *rgd,
|
||||
struct gfs2_statfs_change_host *sc)
|
||||
{
|
||||
gfs2_rgrp_verify(rgd);
|
||||
sc->sc_total += rgd->rd_data;
|
||||
sc->sc_free += rgd->rd_free;
|
||||
sc->sc_dinodes += rgd->rd_dinodes;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_statfs_slow - Stat a filesystem using asynchronous locking
|
||||
* @sdp: the filesystem
|
||||
* @sc: the sc info that will be returned
|
||||
*
|
||||
* Any error (other than a signal) will cause this routine to fall back
|
||||
* to the synchronous version.
|
||||
*
|
||||
* FIXME: This really shouldn't busy wait like this.
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
static int gfs2_statfs_slow(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
|
||||
{
|
||||
struct gfs2_holder ri_gh;
|
||||
struct gfs2_rgrpd *rgd_next;
|
||||
struct gfs2_holder *gha, *gh;
|
||||
unsigned int slots = 64;
|
||||
unsigned int x;
|
||||
int done;
|
||||
int error = 0, err;
|
||||
|
||||
memset(sc, 0, sizeof(struct gfs2_statfs_change_host));
|
||||
gha = kcalloc(slots, sizeof(struct gfs2_holder), GFP_KERNEL);
|
||||
if (!gha)
|
||||
return -ENOMEM;
|
||||
|
||||
error = gfs2_rindex_hold(sdp, &ri_gh);
|
||||
if (error)
|
||||
goto out;
|
||||
|
||||
rgd_next = gfs2_rgrpd_get_first(sdp);
|
||||
|
||||
for (;;) {
|
||||
done = 1;
|
||||
|
||||
for (x = 0; x < slots; x++) {
|
||||
gh = gha + x;
|
||||
|
||||
if (gh->gh_gl && gfs2_glock_poll(gh)) {
|
||||
err = gfs2_glock_wait(gh);
|
||||
if (err) {
|
||||
gfs2_holder_uninit(gh);
|
||||
error = err;
|
||||
} else {
|
||||
if (!error)
|
||||
error = statfs_slow_fill(
|
||||
gh->gh_gl->gl_object, sc);
|
||||
gfs2_glock_dq_uninit(gh);
|
||||
}
|
||||
}
|
||||
|
||||
if (gh->gh_gl)
|
||||
done = 0;
|
||||
else if (rgd_next && !error) {
|
||||
error = gfs2_glock_nq_init(rgd_next->rd_gl,
|
||||
LM_ST_SHARED,
|
||||
GL_ASYNC,
|
||||
gh);
|
||||
rgd_next = gfs2_rgrpd_get_next(rgd_next);
|
||||
done = 0;
|
||||
}
|
||||
|
||||
if (signal_pending(current))
|
||||
error = -ERESTARTSYS;
|
||||
}
|
||||
|
||||
if (done)
|
||||
break;
|
||||
|
||||
yield();
|
||||
}
|
||||
|
||||
gfs2_glock_dq_uninit(&ri_gh);
|
||||
|
||||
out:
|
||||
kfree(gha);
|
||||
return error;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_statfs_i - Do a statfs
|
||||
* @sdp: the filesystem
|
||||
* @sg: the sg structure
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
static int gfs2_statfs_i(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
|
||||
{
|
||||
struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;
|
||||
struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;
|
||||
|
||||
spin_lock(&sdp->sd_statfs_spin);
|
||||
|
||||
*sc = *m_sc;
|
||||
sc->sc_total += l_sc->sc_total;
|
||||
sc->sc_free += l_sc->sc_free;
|
||||
sc->sc_dinodes += l_sc->sc_dinodes;
|
||||
|
||||
spin_unlock(&sdp->sd_statfs_spin);
|
||||
|
||||
if (sc->sc_free < 0)
|
||||
sc->sc_free = 0;
|
||||
if (sc->sc_free > sc->sc_total)
|
||||
sc->sc_free = sc->sc_total;
|
||||
if (sc->sc_dinodes < 0)
|
||||
sc->sc_dinodes = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_statfs - Gather and return stats about the filesystem
|
||||
* @sb: The superblock
|
||||
* @statfsbuf: The buffer
|
||||
*
|
||||
* Returns: 0 on success or error code
|
||||
*/
|
||||
|
||||
static int gfs2_statfs(struct dentry *dentry, struct kstatfs *buf)
|
||||
{
|
||||
struct super_block *sb = dentry->d_inode->i_sb;
|
||||
struct gfs2_sbd *sdp = sb->s_fs_info;
|
||||
struct gfs2_statfs_change_host sc;
|
||||
int error;
|
||||
|
||||
if (gfs2_tune_get(sdp, gt_statfs_slow))
|
||||
error = gfs2_statfs_slow(sdp, &sc);
|
||||
else
|
||||
error = gfs2_statfs_i(sdp, &sc);
|
||||
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
buf->f_type = GFS2_MAGIC;
|
||||
buf->f_bsize = sdp->sd_sb.sb_bsize;
|
||||
buf->f_blocks = sc.sc_total;
|
||||
buf->f_bfree = sc.sc_free;
|
||||
buf->f_bavail = sc.sc_free;
|
||||
buf->f_files = sc.sc_dinodes + sc.sc_free;
|
||||
buf->f_ffree = sc.sc_free;
|
||||
buf->f_namelen = GFS2_FNAMESIZE;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_remount_fs - called when the FS is remounted
|
||||
* @sb: the filesystem
|
||||
* @flags: the remount flags
|
||||
* @data: extra data passed in (not used right now)
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
static int gfs2_remount_fs(struct super_block *sb, int *flags, char *data)
|
||||
{
|
||||
struct gfs2_sbd *sdp = sb->s_fs_info;
|
||||
struct gfs2_args args = sdp->sd_args; /* Default to current settings */
|
||||
int error;
|
||||
|
||||
error = gfs2_mount_args(sdp, &args, data);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
/* Not allowed to change locking details */
|
||||
if (strcmp(args.ar_lockproto, sdp->sd_args.ar_lockproto) ||
|
||||
strcmp(args.ar_locktable, sdp->sd_args.ar_locktable) ||
|
||||
strcmp(args.ar_hostdata, sdp->sd_args.ar_hostdata))
|
||||
return -EINVAL;
|
||||
|
||||
/* Some flags must not be changed */
|
||||
if (args_neq(&args, &sdp->sd_args, spectator) ||
|
||||
args_neq(&args, &sdp->sd_args, ignore_local_fs) ||
|
||||
args_neq(&args, &sdp->sd_args, localflocks) ||
|
||||
args_neq(&args, &sdp->sd_args, localcaching) ||
|
||||
args_neq(&args, &sdp->sd_args, meta))
|
||||
return -EINVAL;
|
||||
|
||||
if (sdp->sd_args.ar_spectator)
|
||||
*flags |= MS_RDONLY;
|
||||
|
||||
if ((sb->s_flags ^ *flags) & MS_RDONLY) {
|
||||
if (*flags & MS_RDONLY)
|
||||
error = gfs2_make_fs_ro(sdp);
|
||||
else
|
||||
error = gfs2_make_fs_rw(sdp);
|
||||
if (error)
|
||||
return error;
|
||||
}
|
||||
|
||||
sdp->sd_args = args;
|
||||
if (sdp->sd_args.ar_posix_acl)
|
||||
sb->s_flags |= MS_POSIXACL;
|
||||
else
|
||||
sb->s_flags &= ~MS_POSIXACL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_drop_inode - Drop an inode (test for remote unlink)
|
||||
* @inode: The inode to drop
|
||||
*
|
||||
* If we've received a callback on an iopen lock then its because a
|
||||
* remote node tried to deallocate the inode but failed due to this node
|
||||
* still having the inode open. Here we mark the link count zero
|
||||
* since we know that it must have reached zero if the GLF_DEMOTE flag
|
||||
* is set on the iopen glock. If we didn't do a disk read since the
|
||||
* remote node removed the final link then we might otherwise miss
|
||||
* this event. This check ensures that this node will deallocate the
|
||||
* inode's blocks, or alternatively pass the baton on to another
|
||||
* node for later deallocation.
|
||||
*/
|
||||
|
||||
static void gfs2_drop_inode(struct inode *inode)
|
||||
{
|
||||
struct gfs2_inode *ip = GFS2_I(inode);
|
||||
|
||||
if (test_bit(GIF_USER, &ip->i_flags) && inode->i_nlink) {
|
||||
struct gfs2_glock *gl = ip->i_iopen_gh.gh_gl;
|
||||
if (gl && test_bit(GLF_DEMOTE, &gl->gl_flags))
|
||||
clear_nlink(inode);
|
||||
}
|
||||
generic_drop_inode(inode);
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_clear_inode - Deallocate an inode when VFS is done with it
|
||||
* @inode: The VFS inode
|
||||
*
|
||||
*/
|
||||
|
||||
static void gfs2_clear_inode(struct inode *inode)
|
||||
{
|
||||
struct gfs2_inode *ip = GFS2_I(inode);
|
||||
|
||||
/* This tells us its a "real" inode and not one which only
|
||||
* serves to contain an address space (see rgrp.c, meta_io.c)
|
||||
* which therefore doesn't have its own glocks.
|
||||
*/
|
||||
if (test_bit(GIF_USER, &ip->i_flags)) {
|
||||
ip->i_gl->gl_object = NULL;
|
||||
gfs2_glock_put(ip->i_gl);
|
||||
ip->i_gl = NULL;
|
||||
if (ip->i_iopen_gh.gh_gl) {
|
||||
ip->i_iopen_gh.gh_gl->gl_object = NULL;
|
||||
gfs2_glock_dq_uninit(&ip->i_iopen_gh);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static int is_ancestor(const struct dentry *d1, const struct dentry *d2)
|
||||
{
|
||||
do {
|
||||
if (d1 == d2)
|
||||
return 1;
|
||||
d1 = d1->d_parent;
|
||||
} while (!IS_ROOT(d1));
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_show_options - Show mount options for /proc/mounts
|
||||
* @s: seq_file structure
|
||||
* @mnt: vfsmount
|
||||
*
|
||||
* Returns: 0 on success or error code
|
||||
*/
|
||||
|
||||
static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
|
||||
{
|
||||
struct gfs2_sbd *sdp = mnt->mnt_sb->s_fs_info;
|
||||
struct gfs2_args *args = &sdp->sd_args;
|
||||
|
||||
if (is_ancestor(mnt->mnt_root, sdp->sd_master_dir))
|
||||
seq_printf(s, ",meta");
|
||||
if (args->ar_lockproto[0])
|
||||
seq_printf(s, ",lockproto=%s", args->ar_lockproto);
|
||||
if (args->ar_locktable[0])
|
||||
seq_printf(s, ",locktable=%s", args->ar_locktable);
|
||||
if (args->ar_hostdata[0])
|
||||
seq_printf(s, ",hostdata=%s", args->ar_hostdata);
|
||||
if (args->ar_spectator)
|
||||
seq_printf(s, ",spectator");
|
||||
if (args->ar_ignore_local_fs)
|
||||
seq_printf(s, ",ignore_local_fs");
|
||||
if (args->ar_localflocks)
|
||||
seq_printf(s, ",localflocks");
|
||||
if (args->ar_localcaching)
|
||||
seq_printf(s, ",localcaching");
|
||||
if (args->ar_debug)
|
||||
seq_printf(s, ",debug");
|
||||
if (args->ar_upgrade)
|
||||
seq_printf(s, ",upgrade");
|
||||
if (args->ar_posix_acl)
|
||||
seq_printf(s, ",acl");
|
||||
if (args->ar_quota != GFS2_QUOTA_DEFAULT) {
|
||||
char *state;
|
||||
switch (args->ar_quota) {
|
||||
case GFS2_QUOTA_OFF:
|
||||
state = "off";
|
||||
break;
|
||||
case GFS2_QUOTA_ACCOUNT:
|
||||
state = "account";
|
||||
break;
|
||||
case GFS2_QUOTA_ON:
|
||||
state = "on";
|
||||
break;
|
||||
default:
|
||||
state = "unknown";
|
||||
break;
|
||||
}
|
||||
seq_printf(s, ",quota=%s", state);
|
||||
}
|
||||
if (args->ar_suiddir)
|
||||
seq_printf(s, ",suiddir");
|
||||
if (args->ar_data != GFS2_DATA_DEFAULT) {
|
||||
char *state;
|
||||
switch (args->ar_data) {
|
||||
case GFS2_DATA_WRITEBACK:
|
||||
state = "writeback";
|
||||
break;
|
||||
case GFS2_DATA_ORDERED:
|
||||
state = "ordered";
|
||||
break;
|
||||
default:
|
||||
state = "unknown";
|
||||
break;
|
||||
}
|
||||
seq_printf(s, ",data=%s", state);
|
||||
}
|
||||
if (args->ar_discard)
|
||||
seq_printf(s, ",discard");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* We have to (at the moment) hold the inodes main lock to cover
|
||||
* the gap between unlocking the shared lock on the iopen lock and
|
||||
* taking the exclusive lock. I'd rather do a shared -> exclusive
|
||||
* conversion on the iopen lock, but we can change that later. This
|
||||
* is safe, just less efficient.
|
||||
*/
|
||||
|
||||
static void gfs2_delete_inode(struct inode *inode)
|
||||
{
|
||||
struct gfs2_sbd *sdp = inode->i_sb->s_fs_info;
|
||||
struct gfs2_inode *ip = GFS2_I(inode);
|
||||
struct gfs2_holder gh;
|
||||
int error;
|
||||
|
||||
if (!test_bit(GIF_USER, &ip->i_flags))
|
||||
goto out;
|
||||
|
||||
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
|
||||
if (unlikely(error)) {
|
||||
gfs2_glock_dq_uninit(&ip->i_iopen_gh);
|
||||
goto out;
|
||||
}
|
||||
|
||||
gfs2_glock_dq_wait(&ip->i_iopen_gh);
|
||||
gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | GL_NOCACHE, &ip->i_iopen_gh);
|
||||
error = gfs2_glock_nq(&ip->i_iopen_gh);
|
||||
if (error)
|
||||
goto out_truncate;
|
||||
|
||||
if (S_ISDIR(inode->i_mode) &&
|
||||
(ip->i_diskflags & GFS2_DIF_EXHASH)) {
|
||||
error = gfs2_dir_exhash_dealloc(ip);
|
||||
if (error)
|
||||
goto out_unlock;
|
||||
}
|
||||
|
||||
if (ip->i_eattr) {
|
||||
error = gfs2_ea_dealloc(ip);
|
||||
if (error)
|
||||
goto out_unlock;
|
||||
}
|
||||
|
||||
if (!gfs2_is_stuffed(ip)) {
|
||||
error = gfs2_file_dealloc(ip);
|
||||
if (error)
|
||||
goto out_unlock;
|
||||
}
|
||||
|
||||
error = gfs2_dinode_dealloc(ip);
|
||||
if (error)
|
||||
goto out_unlock;
|
||||
|
||||
out_truncate:
|
||||
error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks);
|
||||
if (error)
|
||||
goto out_unlock;
|
||||
/* Needs to be done before glock release & also in a transaction */
|
||||
truncate_inode_pages(&inode->i_data, 0);
|
||||
gfs2_trans_end(sdp);
|
||||
|
||||
out_unlock:
|
||||
if (test_bit(HIF_HOLDER, &ip->i_iopen_gh.gh_iflags))
|
||||
gfs2_glock_dq(&ip->i_iopen_gh);
|
||||
gfs2_holder_uninit(&ip->i_iopen_gh);
|
||||
gfs2_glock_dq_uninit(&gh);
|
||||
if (error && error != GLR_TRYFAILED)
|
||||
fs_warn(sdp, "gfs2_delete_inode: %d\n", error);
|
||||
out:
|
||||
truncate_inode_pages(&inode->i_data, 0);
|
||||
clear_inode(inode);
|
||||
}
|
||||
|
||||
static struct inode *gfs2_alloc_inode(struct super_block *sb)
|
||||
{
|
||||
struct gfs2_inode *ip;
|
||||
|
||||
ip = kmem_cache_alloc(gfs2_inode_cachep, GFP_KERNEL);
|
||||
if (ip) {
|
||||
ip->i_flags = 0;
|
||||
ip->i_gl = NULL;
|
||||
}
|
||||
return &ip->i_inode;
|
||||
}
|
||||
|
||||
static void gfs2_destroy_inode(struct inode *inode)
|
||||
{
|
||||
kmem_cache_free(gfs2_inode_cachep, inode);
|
||||
}
|
||||
|
||||
const struct super_operations gfs2_super_ops = {
|
||||
.alloc_inode = gfs2_alloc_inode,
|
||||
.destroy_inode = gfs2_destroy_inode,
|
||||
.write_inode = gfs2_write_inode,
|
||||
.delete_inode = gfs2_delete_inode,
|
||||
.put_super = gfs2_put_super,
|
||||
.write_super = gfs2_write_super,
|
||||
.sync_fs = gfs2_sync_fs,
|
||||
.freeze_fs = gfs2_freeze,
|
||||
.unfreeze_fs = gfs2_unfreeze,
|
||||
.statfs = gfs2_statfs,
|
||||
.remount_fs = gfs2_remount_fs,
|
||||
.clear_inode = gfs2_clear_inode,
|
||||
.drop_inode = gfs2_drop_inode,
|
||||
.show_options = gfs2_show_options,
|
||||
};
|
||||
|
|
@ -60,7 +60,6 @@
|
|||
#include "super.h"
|
||||
#include "trans.h"
|
||||
#include "inode.h"
|
||||
#include "ops_address.h"
|
||||
#include "util.h"
|
||||
|
||||
#define QUOTA_USER 1
|
||||
|
|
|
@ -13,8 +13,7 @@
|
|||
#include <linux/buffer_head.h>
|
||||
#include <linux/gfs2_ondisk.h>
|
||||
#include <linux/crc32.h>
|
||||
#include <linux/kthread.h>
|
||||
#include <linux/freezer.h>
|
||||
#include <linux/slow-work.h>
|
||||
|
||||
#include "gfs2.h"
|
||||
#include "incore.h"
|
||||
|
@ -441,18 +440,25 @@ static void gfs2_recovery_done(struct gfs2_sbd *sdp, unsigned int jid,
|
|||
kobject_uevent_env(&sdp->sd_kobj, KOBJ_CHANGE, envp);
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_recover_journal - recover a given journal
|
||||
* @jd: the struct gfs2_jdesc describing the journal
|
||||
*
|
||||
* Acquire the journal's lock, check to see if the journal is clean, and
|
||||
* do recovery if necessary.
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
int gfs2_recover_journal(struct gfs2_jdesc *jd)
|
||||
static int gfs2_recover_get_ref(struct slow_work *work)
|
||||
{
|
||||
struct gfs2_jdesc *jd = container_of(work, struct gfs2_jdesc, jd_work);
|
||||
if (test_and_set_bit(JDF_RECOVERY, &jd->jd_flags))
|
||||
return -EBUSY;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void gfs2_recover_put_ref(struct slow_work *work)
|
||||
{
|
||||
struct gfs2_jdesc *jd = container_of(work, struct gfs2_jdesc, jd_work);
|
||||
clear_bit(JDF_RECOVERY, &jd->jd_flags);
|
||||
smp_mb__after_clear_bit();
|
||||
wake_up_bit(&jd->jd_flags, JDF_RECOVERY);
|
||||
}
|
||||
|
||||
static void gfs2_recover_work(struct slow_work *work)
|
||||
{
|
||||
struct gfs2_jdesc *jd = container_of(work, struct gfs2_jdesc, jd_work);
|
||||
struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
|
||||
struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
|
||||
struct gfs2_log_header_host head;
|
||||
|
@ -569,7 +575,7 @@ int gfs2_recover_journal(struct gfs2_jdesc *jd)
|
|||
gfs2_glock_dq_uninit(&j_gh);
|
||||
|
||||
fs_info(sdp, "jid=%u: Done\n", jd->jd_jid);
|
||||
return 0;
|
||||
return;
|
||||
|
||||
fail_gunlock_tr:
|
||||
gfs2_glock_dq_uninit(&t_gh);
|
||||
|
@ -584,70 +590,28 @@ int gfs2_recover_journal(struct gfs2_jdesc *jd)
|
|||
|
||||
fail:
|
||||
gfs2_recovery_done(sdp, jd->jd_jid, LM_RD_GAVEUP);
|
||||
return error;
|
||||
}
|
||||
|
||||
static struct gfs2_jdesc *gfs2_jdesc_find_dirty(struct gfs2_sbd *sdp)
|
||||
struct slow_work_ops gfs2_recover_ops = {
|
||||
.get_ref = gfs2_recover_get_ref,
|
||||
.put_ref = gfs2_recover_put_ref,
|
||||
.execute = gfs2_recover_work,
|
||||
};
|
||||
|
||||
|
||||
static int gfs2_recovery_wait(void *word)
|
||||
{
|
||||
struct gfs2_jdesc *jd;
|
||||
int found = 0;
|
||||
|
||||
spin_lock(&sdp->sd_jindex_spin);
|
||||
|
||||
list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
|
||||
if (jd->jd_dirty) {
|
||||
jd->jd_dirty = 0;
|
||||
found = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
spin_unlock(&sdp->sd_jindex_spin);
|
||||
|
||||
if (!found)
|
||||
jd = NULL;
|
||||
|
||||
return jd;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_check_journals - Recover any dirty journals
|
||||
* @sdp: the filesystem
|
||||
*
|
||||
*/
|
||||
|
||||
static void gfs2_check_journals(struct gfs2_sbd *sdp)
|
||||
{
|
||||
struct gfs2_jdesc *jd;
|
||||
|
||||
for (;;) {
|
||||
jd = gfs2_jdesc_find_dirty(sdp);
|
||||
if (!jd)
|
||||
break;
|
||||
|
||||
if (jd != sdp->sd_jdesc)
|
||||
gfs2_recover_journal(jd);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_recoverd - Recover dead machine's journals
|
||||
* @sdp: Pointer to GFS2 superblock
|
||||
*
|
||||
*/
|
||||
|
||||
int gfs2_recoverd(void *data)
|
||||
{
|
||||
struct gfs2_sbd *sdp = data;
|
||||
unsigned long t;
|
||||
|
||||
while (!kthread_should_stop()) {
|
||||
gfs2_check_journals(sdp);
|
||||
t = gfs2_tune_get(sdp, gt_recoverd_secs) * HZ;
|
||||
if (freezing(current))
|
||||
refrigerator();
|
||||
schedule_timeout_interruptible(t);
|
||||
}
|
||||
|
||||
schedule();
|
||||
return 0;
|
||||
}
|
||||
|
||||
int gfs2_recover_journal(struct gfs2_jdesc *jd)
|
||||
{
|
||||
int rv;
|
||||
rv = slow_work_enqueue(&jd->jd_work);
|
||||
if (rv)
|
||||
return rv;
|
||||
wait_on_bit(&jd->jd_flags, JDF_RECOVERY, gfs2_recovery_wait, TASK_UNINTERRUPTIBLE);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
|
@ -28,7 +28,7 @@ extern void gfs2_revoke_clean(struct gfs2_sbd *sdp);
|
|||
extern int gfs2_find_jhead(struct gfs2_jdesc *jd,
|
||||
struct gfs2_log_header_host *head);
|
||||
extern int gfs2_recover_journal(struct gfs2_jdesc *gfs2_jd);
|
||||
extern int gfs2_recoverd(void *data);
|
||||
extern struct slow_work_ops gfs2_recover_ops;
|
||||
|
||||
#endif /* __RECOVERY_DOT_H__ */
|
||||
|
||||
|
|
145
fs/gfs2/rgrp.c
145
fs/gfs2/rgrp.c
|
@ -29,7 +29,6 @@
|
|||
#include "util.h"
|
||||
#include "log.h"
|
||||
#include "inode.h"
|
||||
#include "ops_address.h"
|
||||
|
||||
#define BFITNOENT ((u32)~0)
|
||||
#define NO_BLOCK ((u64)~0)
|
||||
|
@ -442,6 +441,7 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
|
|||
for (x = 0; x < length; x++) {
|
||||
bi = rgd->rd_bits + x;
|
||||
|
||||
bi->bi_flags = 0;
|
||||
/* small rgrp; bitmap stored completely in header block */
|
||||
if (length == 1) {
|
||||
bytes = bytes_left;
|
||||
|
@ -580,7 +580,6 @@ static int read_rindex_entry(struct gfs2_inode *ip,
|
|||
|
||||
rgd->rd_gl->gl_object = rgd;
|
||||
rgd->rd_flags &= ~GFS2_RDF_UPTODATE;
|
||||
rgd->rd_flags |= GFS2_RDF_CHECK;
|
||||
return error;
|
||||
}
|
||||
|
||||
|
@ -701,10 +700,9 @@ static void gfs2_rgrp_in(struct gfs2_rgrpd *rgd, const void *buf)
|
|||
u32 rg_flags;
|
||||
|
||||
rg_flags = be32_to_cpu(str->rg_flags);
|
||||
if (rg_flags & GFS2_RGF_NOALLOC)
|
||||
rgd->rd_flags |= GFS2_RDF_NOALLOC;
|
||||
else
|
||||
rgd->rd_flags &= ~GFS2_RDF_NOALLOC;
|
||||
rg_flags &= ~GFS2_RDF_MASK;
|
||||
rgd->rd_flags &= GFS2_RDF_MASK;
|
||||
rgd->rd_flags |= rg_flags;
|
||||
rgd->rd_free = be32_to_cpu(str->rg_free);
|
||||
rgd->rd_dinodes = be32_to_cpu(str->rg_dinodes);
|
||||
rgd->rd_igeneration = be64_to_cpu(str->rg_igeneration);
|
||||
|
@ -713,11 +711,8 @@ static void gfs2_rgrp_in(struct gfs2_rgrpd *rgd, const void *buf)
|
|||
static void gfs2_rgrp_out(struct gfs2_rgrpd *rgd, void *buf)
|
||||
{
|
||||
struct gfs2_rgrp *str = buf;
|
||||
u32 rg_flags = 0;
|
||||
|
||||
if (rgd->rd_flags & GFS2_RDF_NOALLOC)
|
||||
rg_flags |= GFS2_RGF_NOALLOC;
|
||||
str->rg_flags = cpu_to_be32(rg_flags);
|
||||
str->rg_flags = cpu_to_be32(rgd->rd_flags & ~GFS2_RDF_MASK);
|
||||
str->rg_free = cpu_to_be32(rgd->rd_free);
|
||||
str->rg_dinodes = cpu_to_be32(rgd->rd_dinodes);
|
||||
str->__pad = cpu_to_be32(0);
|
||||
|
@ -775,8 +770,10 @@ int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd)
|
|||
}
|
||||
|
||||
if (!(rgd->rd_flags & GFS2_RDF_UPTODATE)) {
|
||||
for (x = 0; x < length; x++)
|
||||
clear_bit(GBF_FULL, &rgd->rd_bits[x].bi_flags);
|
||||
gfs2_rgrp_in(rgd, (rgd->rd_bits[0].bi_bh)->b_data);
|
||||
rgd->rd_flags |= GFS2_RDF_UPTODATE;
|
||||
rgd->rd_flags |= (GFS2_RDF_UPTODATE | GFS2_RDF_CHECK);
|
||||
}
|
||||
|
||||
spin_lock(&sdp->sd_rindex_spin);
|
||||
|
@ -903,6 +900,7 @@ void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd)
|
|||
continue;
|
||||
if (sdp->sd_args.ar_discard)
|
||||
gfs2_rgrp_send_discards(sdp, rgd->rd_data0, bi);
|
||||
clear_bit(GBF_FULL, &bi->bi_flags);
|
||||
memcpy(bi->bi_clone + bi->bi_offset,
|
||||
bi->bi_bh->b_data + bi->bi_offset, bi->bi_len);
|
||||
}
|
||||
|
@ -942,7 +940,7 @@ static int try_rgrp_fit(struct gfs2_rgrpd *rgd, struct gfs2_alloc *al)
|
|||
struct gfs2_sbd *sdp = rgd->rd_sbd;
|
||||
int ret = 0;
|
||||
|
||||
if (rgd->rd_flags & GFS2_RDF_NOALLOC)
|
||||
if (rgd->rd_flags & (GFS2_RGF_NOALLOC | GFS2_RDF_ERROR))
|
||||
return 0;
|
||||
|
||||
spin_lock(&sdp->sd_rindex_spin);
|
||||
|
@ -1315,30 +1313,37 @@ static u32 rgblk_search(struct gfs2_rgrpd *rgd, u32 goal,
|
|||
{
|
||||
struct gfs2_bitmap *bi = NULL;
|
||||
const u32 length = rgd->rd_length;
|
||||
u32 blk = 0;
|
||||
u32 blk = BFITNOENT;
|
||||
unsigned int buf, x;
|
||||
const unsigned int elen = *n;
|
||||
const u8 *buffer;
|
||||
const u8 *buffer = NULL;
|
||||
|
||||
*n = 0;
|
||||
/* Find bitmap block that contains bits for goal block */
|
||||
for (buf = 0; buf < length; buf++) {
|
||||
bi = rgd->rd_bits + buf;
|
||||
if (goal < (bi->bi_start + bi->bi_len) * GFS2_NBBY)
|
||||
break;
|
||||
/* Convert scope of "goal" from rgrp-wide to within found bit block */
|
||||
if (goal < (bi->bi_start + bi->bi_len) * GFS2_NBBY) {
|
||||
goal -= bi->bi_start * GFS2_NBBY;
|
||||
goto do_search;
|
||||
}
|
||||
}
|
||||
buf = 0;
|
||||
goal = 0;
|
||||
|
||||
gfs2_assert(rgd->rd_sbd, buf < length);
|
||||
|
||||
/* Convert scope of "goal" from rgrp-wide to within found bit block */
|
||||
goal -= bi->bi_start * GFS2_NBBY;
|
||||
|
||||
do_search:
|
||||
/* Search (up to entire) bitmap in this rgrp for allocatable block.
|
||||
"x <= length", instead of "x < length", because we typically start
|
||||
the search in the middle of a bit block, but if we can't find an
|
||||
allocatable block anywhere else, we want to be able wrap around and
|
||||
search in the first part of our first-searched bit block. */
|
||||
for (x = 0; x <= length; x++) {
|
||||
bi = rgd->rd_bits + buf;
|
||||
|
||||
if (test_bit(GBF_FULL, &bi->bi_flags) &&
|
||||
(old_state == GFS2_BLKST_FREE))
|
||||
goto skip;
|
||||
|
||||
/* The GFS2_BLKST_UNLINKED state doesn't apply to the clone
|
||||
bitmaps, so we must search the originals for that. */
|
||||
buffer = bi->bi_bh->b_data + bi->bi_offset;
|
||||
|
@ -1349,33 +1354,39 @@ static u32 rgblk_search(struct gfs2_rgrpd *rgd, u32 goal,
|
|||
if (blk != BFITNOENT)
|
||||
break;
|
||||
|
||||
if ((goal == 0) && (old_state == GFS2_BLKST_FREE))
|
||||
set_bit(GBF_FULL, &bi->bi_flags);
|
||||
|
||||
/* Try next bitmap block (wrap back to rgrp header if at end) */
|
||||
buf = (buf + 1) % length;
|
||||
bi = rgd->rd_bits + buf;
|
||||
skip:
|
||||
buf++;
|
||||
buf %= length;
|
||||
goal = 0;
|
||||
}
|
||||
|
||||
if (blk != BFITNOENT && old_state != new_state) {
|
||||
*n = 1;
|
||||
gfs2_trans_add_bh(rgd->rd_gl, bi->bi_bh, 1);
|
||||
gfs2_setbit(rgd, bi->bi_bh->b_data, bi->bi_clone, bi->bi_offset,
|
||||
bi->bi_len, blk, new_state);
|
||||
goal = blk;
|
||||
while (*n < elen) {
|
||||
goal++;
|
||||
if (goal >= (bi->bi_len * GFS2_NBBY))
|
||||
break;
|
||||
if (gfs2_testbit(rgd, buffer, bi->bi_len, goal) !=
|
||||
GFS2_BLKST_FREE)
|
||||
break;
|
||||
gfs2_setbit(rgd, bi->bi_bh->b_data, bi->bi_clone,
|
||||
bi->bi_offset, bi->bi_len, goal,
|
||||
new_state);
|
||||
(*n)++;
|
||||
}
|
||||
}
|
||||
if (blk == BFITNOENT)
|
||||
return blk;
|
||||
*n = 1;
|
||||
if (old_state == new_state)
|
||||
goto out;
|
||||
|
||||
return (blk == BFITNOENT) ? blk : (bi->bi_start * GFS2_NBBY) + blk;
|
||||
gfs2_trans_add_bh(rgd->rd_gl, bi->bi_bh, 1);
|
||||
gfs2_setbit(rgd, bi->bi_bh->b_data, bi->bi_clone, bi->bi_offset,
|
||||
bi->bi_len, blk, new_state);
|
||||
goal = blk;
|
||||
while (*n < elen) {
|
||||
goal++;
|
||||
if (goal >= (bi->bi_len * GFS2_NBBY))
|
||||
break;
|
||||
if (gfs2_testbit(rgd, buffer, bi->bi_len, goal) !=
|
||||
GFS2_BLKST_FREE)
|
||||
break;
|
||||
gfs2_setbit(rgd, bi->bi_bh->b_data, bi->bi_clone, bi->bi_offset,
|
||||
bi->bi_len, goal, new_state);
|
||||
(*n)++;
|
||||
}
|
||||
out:
|
||||
return (bi->bi_start * GFS2_NBBY) + blk;
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -1435,13 +1446,33 @@ static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, u64 bstart,
|
|||
}
|
||||
|
||||
/**
|
||||
* gfs2_alloc_block - Allocate a block
|
||||
* @ip: the inode to allocate the block for
|
||||
* gfs2_rgrp_dump - print out an rgrp
|
||||
* @seq: The iterator
|
||||
* @gl: The glock in question
|
||||
*
|
||||
* Returns: the allocated block
|
||||
*/
|
||||
|
||||
u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n)
|
||||
int gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl)
|
||||
{
|
||||
const struct gfs2_rgrpd *rgd = gl->gl_object;
|
||||
if (rgd == NULL)
|
||||
return 0;
|
||||
gfs2_print_dbg(seq, " R: n:%llu f:%02x b:%u/%u i:%u\n",
|
||||
(unsigned long long)rgd->rd_addr, rgd->rd_flags,
|
||||
rgd->rd_free, rgd->rd_free_clone, rgd->rd_dinodes);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_alloc_block - Allocate one or more blocks
|
||||
* @ip: the inode to allocate the block for
|
||||
* @bn: Used to return the starting block number
|
||||
* @n: requested number of blocks/extent length (value/result)
|
||||
*
|
||||
* Returns: 0 or error
|
||||
*/
|
||||
|
||||
int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n)
|
||||
{
|
||||
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
|
||||
struct buffer_head *dibh;
|
||||
|
@ -1457,7 +1488,10 @@ u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n)
|
|||
goal = rgd->rd_last_alloc;
|
||||
|
||||
blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, GFS2_BLKST_USED, n);
|
||||
BUG_ON(blk == BFITNOENT);
|
||||
|
||||
/* Since all blocks are reserved in advance, this shouldn't happen */
|
||||
if (blk == BFITNOENT)
|
||||
goto rgrp_error;
|
||||
|
||||
rgd->rd_last_alloc = blk;
|
||||
block = rgd->rd_data0 + blk;
|
||||
|
@ -1469,7 +1503,9 @@ u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n)
|
|||
di->di_goal_meta = di->di_goal_data = cpu_to_be64(ip->i_goal);
|
||||
brelse(dibh);
|
||||
}
|
||||
gfs2_assert_withdraw(sdp, rgd->rd_free >= *n);
|
||||
if (rgd->rd_free < *n)
|
||||
goto rgrp_error;
|
||||
|
||||
rgd->rd_free -= *n;
|
||||
|
||||
gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
|
||||
|
@ -1484,7 +1520,16 @@ u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n)
|
|||
rgd->rd_free_clone -= *n;
|
||||
spin_unlock(&sdp->sd_rindex_spin);
|
||||
|
||||
return block;
|
||||
*bn = block;
|
||||
return 0;
|
||||
|
||||
rgrp_error:
|
||||
fs_warn(sdp, "rgrp %llu has an error, marking it readonly until umount\n",
|
||||
(unsigned long long)rgd->rd_addr);
|
||||
fs_warn(sdp, "umount on all nodes and run fsck.gfs2 to fix the error\n");
|
||||
gfs2_rgrp_dump(NULL, rgd->rd_gl);
|
||||
rgd->rd_flags |= GFS2_RDF_ERROR;
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
@ -14,22 +14,22 @@ struct gfs2_rgrpd;
|
|||
struct gfs2_sbd;
|
||||
struct gfs2_holder;
|
||||
|
||||
void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
|
||||
extern void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
|
||||
|
||||
struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk);
|
||||
struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
|
||||
struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
|
||||
|
||||
void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
|
||||
int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh);
|
||||
extern void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
|
||||
extern int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh);
|
||||
|
||||
int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd);
|
||||
void gfs2_rgrp_bh_hold(struct gfs2_rgrpd *rgd);
|
||||
void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd);
|
||||
extern int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd);
|
||||
extern void gfs2_rgrp_bh_hold(struct gfs2_rgrpd *rgd);
|
||||
extern void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd);
|
||||
|
||||
void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd);
|
||||
extern void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd);
|
||||
|
||||
struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
|
||||
extern struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
|
||||
static inline void gfs2_alloc_put(struct gfs2_inode *ip)
|
||||
{
|
||||
BUG_ON(ip->i_alloc == NULL);
|
||||
|
@ -37,22 +37,22 @@ static inline void gfs2_alloc_put(struct gfs2_inode *ip)
|
|||
ip->i_alloc = NULL;
|
||||
}
|
||||
|
||||
int gfs2_inplace_reserve_i(struct gfs2_inode *ip,
|
||||
char *file, unsigned int line);
|
||||
extern int gfs2_inplace_reserve_i(struct gfs2_inode *ip, char *file,
|
||||
unsigned int line);
|
||||
#define gfs2_inplace_reserve(ip) \
|
||||
gfs2_inplace_reserve_i((ip), __FILE__, __LINE__)
|
||||
|
||||
void gfs2_inplace_release(struct gfs2_inode *ip);
|
||||
extern void gfs2_inplace_release(struct gfs2_inode *ip);
|
||||
|
||||
unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block);
|
||||
extern unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block);
|
||||
|
||||
u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n);
|
||||
u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation);
|
||||
extern int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n);
|
||||
extern u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation);
|
||||
|
||||
void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
|
||||
void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
|
||||
void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
|
||||
void gfs2_unlink_di(struct inode *inode);
|
||||
extern void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
|
||||
extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
|
||||
extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
|
||||
extern void gfs2_unlink_di(struct inode *inode);
|
||||
|
||||
struct gfs2_rgrp_list {
|
||||
unsigned int rl_rgrps;
|
||||
|
@ -61,10 +61,11 @@ struct gfs2_rgrp_list {
|
|||
struct gfs2_holder *rl_ghs;
|
||||
};
|
||||
|
||||
void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
|
||||
u64 block);
|
||||
void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state);
|
||||
void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
|
||||
u64 gfs2_ri_total(struct gfs2_sbd *sdp);
|
||||
extern void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
|
||||
u64 block);
|
||||
extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state);
|
||||
extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
|
||||
extern u64 gfs2_ri_total(struct gfs2_sbd *sdp);
|
||||
extern int gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl);
|
||||
|
||||
#endif /* __RGRP_DOT_H__ */
|
||||
|
|
903
fs/gfs2/super.c
903
fs/gfs2/super.c
|
@ -7,14 +7,20 @@
|
|||
* of the GNU General Public License version 2.
|
||||
*/
|
||||
|
||||
#include <linux/bio.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/completion.h>
|
||||
#include <linux/buffer_head.h>
|
||||
#include <linux/crc32.h>
|
||||
#include <linux/statfs.h>
|
||||
#include <linux/seq_file.h>
|
||||
#include <linux/mount.h>
|
||||
#include <linux/kthread.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/gfs2_ondisk.h>
|
||||
#include <linux/bio.h>
|
||||
#include <linux/crc32.h>
|
||||
#include <linux/time.h>
|
||||
|
||||
#include "gfs2.h"
|
||||
#include "incore.h"
|
||||
|
@ -31,6 +37,183 @@
|
|||
#include "super.h"
|
||||
#include "trans.h"
|
||||
#include "util.h"
|
||||
#include "sys.h"
|
||||
#include "eattr.h"
|
||||
|
||||
#define args_neq(a1, a2, x) ((a1)->ar_##x != (a2)->ar_##x)
|
||||
|
||||
enum {
|
||||
Opt_lockproto,
|
||||
Opt_locktable,
|
||||
Opt_hostdata,
|
||||
Opt_spectator,
|
||||
Opt_ignore_local_fs,
|
||||
Opt_localflocks,
|
||||
Opt_localcaching,
|
||||
Opt_debug,
|
||||
Opt_nodebug,
|
||||
Opt_upgrade,
|
||||
Opt_acl,
|
||||
Opt_noacl,
|
||||
Opt_quota_off,
|
||||
Opt_quota_account,
|
||||
Opt_quota_on,
|
||||
Opt_quota,
|
||||
Opt_noquota,
|
||||
Opt_suiddir,
|
||||
Opt_nosuiddir,
|
||||
Opt_data_writeback,
|
||||
Opt_data_ordered,
|
||||
Opt_meta,
|
||||
Opt_discard,
|
||||
Opt_nodiscard,
|
||||
Opt_commit,
|
||||
Opt_error,
|
||||
};
|
||||
|
||||
static const match_table_t tokens = {
|
||||
{Opt_lockproto, "lockproto=%s"},
|
||||
{Opt_locktable, "locktable=%s"},
|
||||
{Opt_hostdata, "hostdata=%s"},
|
||||
{Opt_spectator, "spectator"},
|
||||
{Opt_ignore_local_fs, "ignore_local_fs"},
|
||||
{Opt_localflocks, "localflocks"},
|
||||
{Opt_localcaching, "localcaching"},
|
||||
{Opt_debug, "debug"},
|
||||
{Opt_nodebug, "nodebug"},
|
||||
{Opt_upgrade, "upgrade"},
|
||||
{Opt_acl, "acl"},
|
||||
{Opt_noacl, "noacl"},
|
||||
{Opt_quota_off, "quota=off"},
|
||||
{Opt_quota_account, "quota=account"},
|
||||
{Opt_quota_on, "quota=on"},
|
||||
{Opt_quota, "quota"},
|
||||
{Opt_noquota, "noquota"},
|
||||
{Opt_suiddir, "suiddir"},
|
||||
{Opt_nosuiddir, "nosuiddir"},
|
||||
{Opt_data_writeback, "data=writeback"},
|
||||
{Opt_data_ordered, "data=ordered"},
|
||||
{Opt_meta, "meta"},
|
||||
{Opt_discard, "discard"},
|
||||
{Opt_nodiscard, "nodiscard"},
|
||||
{Opt_commit, "commit=%d"},
|
||||
{Opt_error, NULL}
|
||||
};
|
||||
|
||||
/**
|
||||
* gfs2_mount_args - Parse mount options
|
||||
* @sdp:
|
||||
* @data:
|
||||
*
|
||||
* Return: errno
|
||||
*/
|
||||
|
||||
int gfs2_mount_args(struct gfs2_sbd *sdp, struct gfs2_args *args, char *options)
|
||||
{
|
||||
char *o;
|
||||
int token;
|
||||
substring_t tmp[MAX_OPT_ARGS];
|
||||
int rv;
|
||||
|
||||
/* Split the options into tokens with the "," character and
|
||||
process them */
|
||||
|
||||
while (1) {
|
||||
o = strsep(&options, ",");
|
||||
if (o == NULL)
|
||||
break;
|
||||
if (*o == '\0')
|
||||
continue;
|
||||
|
||||
token = match_token(o, tokens, tmp);
|
||||
switch (token) {
|
||||
case Opt_lockproto:
|
||||
match_strlcpy(args->ar_lockproto, &tmp[0],
|
||||
GFS2_LOCKNAME_LEN);
|
||||
break;
|
||||
case Opt_locktable:
|
||||
match_strlcpy(args->ar_locktable, &tmp[0],
|
||||
GFS2_LOCKNAME_LEN);
|
||||
break;
|
||||
case Opt_hostdata:
|
||||
match_strlcpy(args->ar_hostdata, &tmp[0],
|
||||
GFS2_LOCKNAME_LEN);
|
||||
break;
|
||||
case Opt_spectator:
|
||||
args->ar_spectator = 1;
|
||||
break;
|
||||
case Opt_ignore_local_fs:
|
||||
args->ar_ignore_local_fs = 1;
|
||||
break;
|
||||
case Opt_localflocks:
|
||||
args->ar_localflocks = 1;
|
||||
break;
|
||||
case Opt_localcaching:
|
||||
args->ar_localcaching = 1;
|
||||
break;
|
||||
case Opt_debug:
|
||||
args->ar_debug = 1;
|
||||
break;
|
||||
case Opt_nodebug:
|
||||
args->ar_debug = 0;
|
||||
break;
|
||||
case Opt_upgrade:
|
||||
args->ar_upgrade = 1;
|
||||
break;
|
||||
case Opt_acl:
|
||||
args->ar_posix_acl = 1;
|
||||
break;
|
||||
case Opt_noacl:
|
||||
args->ar_posix_acl = 0;
|
||||
break;
|
||||
case Opt_quota_off:
|
||||
case Opt_noquota:
|
||||
args->ar_quota = GFS2_QUOTA_OFF;
|
||||
break;
|
||||
case Opt_quota_account:
|
||||
args->ar_quota = GFS2_QUOTA_ACCOUNT;
|
||||
break;
|
||||
case Opt_quota_on:
|
||||
case Opt_quota:
|
||||
args->ar_quota = GFS2_QUOTA_ON;
|
||||
break;
|
||||
case Opt_suiddir:
|
||||
args->ar_suiddir = 1;
|
||||
break;
|
||||
case Opt_nosuiddir:
|
||||
args->ar_suiddir = 0;
|
||||
break;
|
||||
case Opt_data_writeback:
|
||||
args->ar_data = GFS2_DATA_WRITEBACK;
|
||||
break;
|
||||
case Opt_data_ordered:
|
||||
args->ar_data = GFS2_DATA_ORDERED;
|
||||
break;
|
||||
case Opt_meta:
|
||||
args->ar_meta = 1;
|
||||
break;
|
||||
case Opt_discard:
|
||||
args->ar_discard = 1;
|
||||
break;
|
||||
case Opt_nodiscard:
|
||||
args->ar_discard = 0;
|
||||
break;
|
||||
case Opt_commit:
|
||||
rv = match_int(&tmp[0], &args->ar_commit);
|
||||
if (rv || args->ar_commit <= 0) {
|
||||
fs_info(sdp, "commit mount option requires a positive numeric argument\n");
|
||||
return rv ? rv : -EINVAL;
|
||||
}
|
||||
break;
|
||||
case Opt_error:
|
||||
default:
|
||||
fs_info(sdp, "invalid mount option: %s\n", o);
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_jindex_free - Clear all the journal index information
|
||||
|
@ -436,3 +619,719 @@ void gfs2_unfreeze_fs(struct gfs2_sbd *sdp)
|
|||
mutex_unlock(&sdp->sd_freeze_lock);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* gfs2_write_inode - Make sure the inode is stable on the disk
|
||||
* @inode: The inode
|
||||
* @sync: synchronous write flag
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
static int gfs2_write_inode(struct inode *inode, int sync)
|
||||
{
|
||||
struct gfs2_inode *ip = GFS2_I(inode);
|
||||
struct gfs2_sbd *sdp = GFS2_SB(inode);
|
||||
struct gfs2_holder gh;
|
||||
struct buffer_head *bh;
|
||||
struct timespec atime;
|
||||
struct gfs2_dinode *di;
|
||||
int ret = 0;
|
||||
|
||||
/* Check this is a "normal" inode, etc */
|
||||
if (!test_bit(GIF_USER, &ip->i_flags) ||
|
||||
(current->flags & PF_MEMALLOC))
|
||||
return 0;
|
||||
ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
|
||||
if (ret)
|
||||
goto do_flush;
|
||||
ret = gfs2_trans_begin(sdp, RES_DINODE, 0);
|
||||
if (ret)
|
||||
goto do_unlock;
|
||||
ret = gfs2_meta_inode_buffer(ip, &bh);
|
||||
if (ret == 0) {
|
||||
di = (struct gfs2_dinode *)bh->b_data;
|
||||
atime.tv_sec = be64_to_cpu(di->di_atime);
|
||||
atime.tv_nsec = be32_to_cpu(di->di_atime_nsec);
|
||||
if (timespec_compare(&inode->i_atime, &atime) > 0) {
|
||||
gfs2_trans_add_bh(ip->i_gl, bh, 1);
|
||||
gfs2_dinode_out(ip, bh->b_data);
|
||||
}
|
||||
brelse(bh);
|
||||
}
|
||||
gfs2_trans_end(sdp);
|
||||
do_unlock:
|
||||
gfs2_glock_dq_uninit(&gh);
|
||||
do_flush:
|
||||
if (sync != 0)
|
||||
gfs2_log_flush(GFS2_SB(inode), ip->i_gl);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_make_fs_ro - Turn a Read-Write FS into a Read-Only one
|
||||
* @sdp: the filesystem
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
static int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
|
||||
{
|
||||
struct gfs2_holder t_gh;
|
||||
int error;
|
||||
|
||||
gfs2_quota_sync(sdp);
|
||||
gfs2_statfs_sync(sdp);
|
||||
|
||||
error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED, GL_NOCACHE,
|
||||
&t_gh);
|
||||
if (error && !test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
|
||||
return error;
|
||||
|
||||
gfs2_meta_syncfs(sdp);
|
||||
gfs2_log_shutdown(sdp);
|
||||
|
||||
clear_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
|
||||
|
||||
if (t_gh.gh_gl)
|
||||
gfs2_glock_dq_uninit(&t_gh);
|
||||
|
||||
gfs2_quota_cleanup(sdp);
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
static int gfs2_umount_recovery_wait(void *word)
|
||||
{
|
||||
schedule();
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_put_super - Unmount the filesystem
|
||||
* @sb: The VFS superblock
|
||||
*
|
||||
*/
|
||||
|
||||
static void gfs2_put_super(struct super_block *sb)
|
||||
{
|
||||
struct gfs2_sbd *sdp = sb->s_fs_info;
|
||||
int error;
|
||||
struct gfs2_jdesc *jd;
|
||||
|
||||
/* Unfreeze the filesystem, if we need to */
|
||||
|
||||
mutex_lock(&sdp->sd_freeze_lock);
|
||||
if (sdp->sd_freeze_count)
|
||||
gfs2_glock_dq_uninit(&sdp->sd_freeze_gh);
|
||||
mutex_unlock(&sdp->sd_freeze_lock);
|
||||
|
||||
/* No more recovery requests */
|
||||
set_bit(SDF_NORECOVERY, &sdp->sd_flags);
|
||||
smp_mb();
|
||||
|
||||
/* Wait on outstanding recovery */
|
||||
restart:
|
||||
spin_lock(&sdp->sd_jindex_spin);
|
||||
list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
|
||||
if (!test_bit(JDF_RECOVERY, &jd->jd_flags))
|
||||
continue;
|
||||
spin_unlock(&sdp->sd_jindex_spin);
|
||||
wait_on_bit(&jd->jd_flags, JDF_RECOVERY,
|
||||
gfs2_umount_recovery_wait, TASK_UNINTERRUPTIBLE);
|
||||
goto restart;
|
||||
}
|
||||
spin_unlock(&sdp->sd_jindex_spin);
|
||||
|
||||
kthread_stop(sdp->sd_quotad_process);
|
||||
kthread_stop(sdp->sd_logd_process);
|
||||
|
||||
if (!(sb->s_flags & MS_RDONLY)) {
|
||||
error = gfs2_make_fs_ro(sdp);
|
||||
if (error)
|
||||
gfs2_io_error(sdp);
|
||||
}
|
||||
/* At this point, we're through modifying the disk */
|
||||
|
||||
/* Release stuff */
|
||||
|
||||
iput(sdp->sd_jindex);
|
||||
iput(sdp->sd_inum_inode);
|
||||
iput(sdp->sd_statfs_inode);
|
||||
iput(sdp->sd_rindex);
|
||||
iput(sdp->sd_quota_inode);
|
||||
|
||||
gfs2_glock_put(sdp->sd_rename_gl);
|
||||
gfs2_glock_put(sdp->sd_trans_gl);
|
||||
|
||||
if (!sdp->sd_args.ar_spectator) {
|
||||
gfs2_glock_dq_uninit(&sdp->sd_journal_gh);
|
||||
gfs2_glock_dq_uninit(&sdp->sd_jinode_gh);
|
||||
gfs2_glock_dq_uninit(&sdp->sd_ir_gh);
|
||||
gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
|
||||
gfs2_glock_dq_uninit(&sdp->sd_qc_gh);
|
||||
iput(sdp->sd_ir_inode);
|
||||
iput(sdp->sd_sc_inode);
|
||||
iput(sdp->sd_qc_inode);
|
||||
}
|
||||
|
||||
gfs2_glock_dq_uninit(&sdp->sd_live_gh);
|
||||
gfs2_clear_rgrpd(sdp);
|
||||
gfs2_jindex_free(sdp);
|
||||
/* Take apart glock structures and buffer lists */
|
||||
gfs2_gl_hash_clear(sdp);
|
||||
/* Unmount the locking protocol */
|
||||
gfs2_lm_unmount(sdp);
|
||||
|
||||
/* At this point, we're through participating in the lockspace */
|
||||
gfs2_sys_fs_del(sdp);
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_write_super
|
||||
* @sb: the superblock
|
||||
*
|
||||
*/
|
||||
|
||||
static void gfs2_write_super(struct super_block *sb)
|
||||
{
|
||||
sb->s_dirt = 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_sync_fs - sync the filesystem
|
||||
* @sb: the superblock
|
||||
*
|
||||
* Flushes the log to disk.
|
||||
*/
|
||||
|
||||
static int gfs2_sync_fs(struct super_block *sb, int wait)
|
||||
{
|
||||
sb->s_dirt = 0;
|
||||
if (wait && sb->s_fs_info)
|
||||
gfs2_log_flush(sb->s_fs_info, NULL);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_freeze - prevent further writes to the filesystem
|
||||
* @sb: the VFS structure for the filesystem
|
||||
*
|
||||
*/
|
||||
|
||||
static int gfs2_freeze(struct super_block *sb)
|
||||
{
|
||||
struct gfs2_sbd *sdp = sb->s_fs_info;
|
||||
int error;
|
||||
|
||||
if (test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
|
||||
return -EINVAL;
|
||||
|
||||
for (;;) {
|
||||
error = gfs2_freeze_fs(sdp);
|
||||
if (!error)
|
||||
break;
|
||||
|
||||
switch (error) {
|
||||
case -EBUSY:
|
||||
fs_err(sdp, "waiting for recovery before freeze\n");
|
||||
break;
|
||||
|
||||
default:
|
||||
fs_err(sdp, "error freezing FS: %d\n", error);
|
||||
break;
|
||||
}
|
||||
|
||||
fs_err(sdp, "retrying...\n");
|
||||
msleep(1000);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_unfreeze - reallow writes to the filesystem
|
||||
* @sb: the VFS structure for the filesystem
|
||||
*
|
||||
*/
|
||||
|
||||
static int gfs2_unfreeze(struct super_block *sb)
|
||||
{
|
||||
gfs2_unfreeze_fs(sb->s_fs_info);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* statfs_fill - fill in the sg for a given RG
|
||||
* @rgd: the RG
|
||||
* @sc: the sc structure
|
||||
*
|
||||
* Returns: 0 on success, -ESTALE if the LVB is invalid
|
||||
*/
|
||||
|
||||
static int statfs_slow_fill(struct gfs2_rgrpd *rgd,
|
||||
struct gfs2_statfs_change_host *sc)
|
||||
{
|
||||
gfs2_rgrp_verify(rgd);
|
||||
sc->sc_total += rgd->rd_data;
|
||||
sc->sc_free += rgd->rd_free;
|
||||
sc->sc_dinodes += rgd->rd_dinodes;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_statfs_slow - Stat a filesystem using asynchronous locking
|
||||
* @sdp: the filesystem
|
||||
* @sc: the sc info that will be returned
|
||||
*
|
||||
* Any error (other than a signal) will cause this routine to fall back
|
||||
* to the synchronous version.
|
||||
*
|
||||
* FIXME: This really shouldn't busy wait like this.
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
static int gfs2_statfs_slow(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
|
||||
{
|
||||
struct gfs2_holder ri_gh;
|
||||
struct gfs2_rgrpd *rgd_next;
|
||||
struct gfs2_holder *gha, *gh;
|
||||
unsigned int slots = 64;
|
||||
unsigned int x;
|
||||
int done;
|
||||
int error = 0, err;
|
||||
|
||||
memset(sc, 0, sizeof(struct gfs2_statfs_change_host));
|
||||
gha = kcalloc(slots, sizeof(struct gfs2_holder), GFP_KERNEL);
|
||||
if (!gha)
|
||||
return -ENOMEM;
|
||||
|
||||
error = gfs2_rindex_hold(sdp, &ri_gh);
|
||||
if (error)
|
||||
goto out;
|
||||
|
||||
rgd_next = gfs2_rgrpd_get_first(sdp);
|
||||
|
||||
for (;;) {
|
||||
done = 1;
|
||||
|
||||
for (x = 0; x < slots; x++) {
|
||||
gh = gha + x;
|
||||
|
||||
if (gh->gh_gl && gfs2_glock_poll(gh)) {
|
||||
err = gfs2_glock_wait(gh);
|
||||
if (err) {
|
||||
gfs2_holder_uninit(gh);
|
||||
error = err;
|
||||
} else {
|
||||
if (!error)
|
||||
error = statfs_slow_fill(
|
||||
gh->gh_gl->gl_object, sc);
|
||||
gfs2_glock_dq_uninit(gh);
|
||||
}
|
||||
}
|
||||
|
||||
if (gh->gh_gl)
|
||||
done = 0;
|
||||
else if (rgd_next && !error) {
|
||||
error = gfs2_glock_nq_init(rgd_next->rd_gl,
|
||||
LM_ST_SHARED,
|
||||
GL_ASYNC,
|
||||
gh);
|
||||
rgd_next = gfs2_rgrpd_get_next(rgd_next);
|
||||
done = 0;
|
||||
}
|
||||
|
||||
if (signal_pending(current))
|
||||
error = -ERESTARTSYS;
|
||||
}
|
||||
|
||||
if (done)
|
||||
break;
|
||||
|
||||
yield();
|
||||
}
|
||||
|
||||
gfs2_glock_dq_uninit(&ri_gh);
|
||||
|
||||
out:
|
||||
kfree(gha);
|
||||
return error;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_statfs_i - Do a statfs
|
||||
* @sdp: the filesystem
|
||||
* @sg: the sg structure
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
static int gfs2_statfs_i(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
|
||||
{
|
||||
struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;
|
||||
struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;
|
||||
|
||||
spin_lock(&sdp->sd_statfs_spin);
|
||||
|
||||
*sc = *m_sc;
|
||||
sc->sc_total += l_sc->sc_total;
|
||||
sc->sc_free += l_sc->sc_free;
|
||||
sc->sc_dinodes += l_sc->sc_dinodes;
|
||||
|
||||
spin_unlock(&sdp->sd_statfs_spin);
|
||||
|
||||
if (sc->sc_free < 0)
|
||||
sc->sc_free = 0;
|
||||
if (sc->sc_free > sc->sc_total)
|
||||
sc->sc_free = sc->sc_total;
|
||||
if (sc->sc_dinodes < 0)
|
||||
sc->sc_dinodes = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_statfs - Gather and return stats about the filesystem
|
||||
* @sb: The superblock
|
||||
* @statfsbuf: The buffer
|
||||
*
|
||||
* Returns: 0 on success or error code
|
||||
*/
|
||||
|
||||
static int gfs2_statfs(struct dentry *dentry, struct kstatfs *buf)
|
||||
{
|
||||
struct super_block *sb = dentry->d_inode->i_sb;
|
||||
struct gfs2_sbd *sdp = sb->s_fs_info;
|
||||
struct gfs2_statfs_change_host sc;
|
||||
int error;
|
||||
|
||||
if (gfs2_tune_get(sdp, gt_statfs_slow))
|
||||
error = gfs2_statfs_slow(sdp, &sc);
|
||||
else
|
||||
error = gfs2_statfs_i(sdp, &sc);
|
||||
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
buf->f_type = GFS2_MAGIC;
|
||||
buf->f_bsize = sdp->sd_sb.sb_bsize;
|
||||
buf->f_blocks = sc.sc_total;
|
||||
buf->f_bfree = sc.sc_free;
|
||||
buf->f_bavail = sc.sc_free;
|
||||
buf->f_files = sc.sc_dinodes + sc.sc_free;
|
||||
buf->f_ffree = sc.sc_free;
|
||||
buf->f_namelen = GFS2_FNAMESIZE;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_remount_fs - called when the FS is remounted
|
||||
* @sb: the filesystem
|
||||
* @flags: the remount flags
|
||||
* @data: extra data passed in (not used right now)
|
||||
*
|
||||
* Returns: errno
|
||||
*/
|
||||
|
||||
static int gfs2_remount_fs(struct super_block *sb, int *flags, char *data)
|
||||
{
|
||||
struct gfs2_sbd *sdp = sb->s_fs_info;
|
||||
struct gfs2_args args = sdp->sd_args; /* Default to current settings */
|
||||
struct gfs2_tune *gt = &sdp->sd_tune;
|
||||
int error;
|
||||
|
||||
spin_lock(>->gt_spin);
|
||||
args.ar_commit = gt->gt_log_flush_secs;
|
||||
spin_unlock(>->gt_spin);
|
||||
error = gfs2_mount_args(sdp, &args, data);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
/* Not allowed to change locking details */
|
||||
if (strcmp(args.ar_lockproto, sdp->sd_args.ar_lockproto) ||
|
||||
strcmp(args.ar_locktable, sdp->sd_args.ar_locktable) ||
|
||||
strcmp(args.ar_hostdata, sdp->sd_args.ar_hostdata))
|
||||
return -EINVAL;
|
||||
|
||||
/* Some flags must not be changed */
|
||||
if (args_neq(&args, &sdp->sd_args, spectator) ||
|
||||
args_neq(&args, &sdp->sd_args, ignore_local_fs) ||
|
||||
args_neq(&args, &sdp->sd_args, localflocks) ||
|
||||
args_neq(&args, &sdp->sd_args, localcaching) ||
|
||||
args_neq(&args, &sdp->sd_args, meta))
|
||||
return -EINVAL;
|
||||
|
||||
if (sdp->sd_args.ar_spectator)
|
||||
*flags |= MS_RDONLY;
|
||||
|
||||
if ((sb->s_flags ^ *flags) & MS_RDONLY) {
|
||||
if (*flags & MS_RDONLY)
|
||||
error = gfs2_make_fs_ro(sdp);
|
||||
else
|
||||
error = gfs2_make_fs_rw(sdp);
|
||||
if (error)
|
||||
return error;
|
||||
}
|
||||
|
||||
sdp->sd_args = args;
|
||||
if (sdp->sd_args.ar_posix_acl)
|
||||
sb->s_flags |= MS_POSIXACL;
|
||||
else
|
||||
sb->s_flags &= ~MS_POSIXACL;
|
||||
spin_lock(>->gt_spin);
|
||||
gt->gt_log_flush_secs = args.ar_commit;
|
||||
spin_unlock(>->gt_spin);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_drop_inode - Drop an inode (test for remote unlink)
|
||||
* @inode: The inode to drop
|
||||
*
|
||||
* If we've received a callback on an iopen lock then its because a
|
||||
* remote node tried to deallocate the inode but failed due to this node
|
||||
* still having the inode open. Here we mark the link count zero
|
||||
* since we know that it must have reached zero if the GLF_DEMOTE flag
|
||||
* is set on the iopen glock. If we didn't do a disk read since the
|
||||
* remote node removed the final link then we might otherwise miss
|
||||
* this event. This check ensures that this node will deallocate the
|
||||
* inode's blocks, or alternatively pass the baton on to another
|
||||
* node for later deallocation.
|
||||
*/
|
||||
|
||||
static void gfs2_drop_inode(struct inode *inode)
|
||||
{
|
||||
struct gfs2_inode *ip = GFS2_I(inode);
|
||||
|
||||
if (test_bit(GIF_USER, &ip->i_flags) && inode->i_nlink) {
|
||||
struct gfs2_glock *gl = ip->i_iopen_gh.gh_gl;
|
||||
if (gl && test_bit(GLF_DEMOTE, &gl->gl_flags))
|
||||
clear_nlink(inode);
|
||||
}
|
||||
generic_drop_inode(inode);
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_clear_inode - Deallocate an inode when VFS is done with it
|
||||
* @inode: The VFS inode
|
||||
*
|
||||
*/
|
||||
|
||||
static void gfs2_clear_inode(struct inode *inode)
|
||||
{
|
||||
struct gfs2_inode *ip = GFS2_I(inode);
|
||||
|
||||
/* This tells us its a "real" inode and not one which only
|
||||
* serves to contain an address space (see rgrp.c, meta_io.c)
|
||||
* which therefore doesn't have its own glocks.
|
||||
*/
|
||||
if (test_bit(GIF_USER, &ip->i_flags)) {
|
||||
ip->i_gl->gl_object = NULL;
|
||||
gfs2_glock_put(ip->i_gl);
|
||||
ip->i_gl = NULL;
|
||||
if (ip->i_iopen_gh.gh_gl) {
|
||||
ip->i_iopen_gh.gh_gl->gl_object = NULL;
|
||||
gfs2_glock_dq_uninit(&ip->i_iopen_gh);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static int is_ancestor(const struct dentry *d1, const struct dentry *d2)
|
||||
{
|
||||
do {
|
||||
if (d1 == d2)
|
||||
return 1;
|
||||
d1 = d1->d_parent;
|
||||
} while (!IS_ROOT(d1));
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* gfs2_show_options - Show mount options for /proc/mounts
|
||||
* @s: seq_file structure
|
||||
* @mnt: vfsmount
|
||||
*
|
||||
* Returns: 0 on success or error code
|
||||
*/
|
||||
|
||||
static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
|
||||
{
|
||||
struct gfs2_sbd *sdp = mnt->mnt_sb->s_fs_info;
|
||||
struct gfs2_args *args = &sdp->sd_args;
|
||||
int lfsecs;
|
||||
|
||||
if (is_ancestor(mnt->mnt_root, sdp->sd_master_dir))
|
||||
seq_printf(s, ",meta");
|
||||
if (args->ar_lockproto[0])
|
||||
seq_printf(s, ",lockproto=%s", args->ar_lockproto);
|
||||
if (args->ar_locktable[0])
|
||||
seq_printf(s, ",locktable=%s", args->ar_locktable);
|
||||
if (args->ar_hostdata[0])
|
||||
seq_printf(s, ",hostdata=%s", args->ar_hostdata);
|
||||
if (args->ar_spectator)
|
||||
seq_printf(s, ",spectator");
|
||||
if (args->ar_ignore_local_fs)
|
||||
seq_printf(s, ",ignore_local_fs");
|
||||
if (args->ar_localflocks)
|
||||
seq_printf(s, ",localflocks");
|
||||
if (args->ar_localcaching)
|
||||
seq_printf(s, ",localcaching");
|
||||
if (args->ar_debug)
|
||||
seq_printf(s, ",debug");
|
||||
if (args->ar_upgrade)
|
||||
seq_printf(s, ",upgrade");
|
||||
if (args->ar_posix_acl)
|
||||
seq_printf(s, ",acl");
|
||||
if (args->ar_quota != GFS2_QUOTA_DEFAULT) {
|
||||
char *state;
|
||||
switch (args->ar_quota) {
|
||||
case GFS2_QUOTA_OFF:
|
||||
state = "off";
|
||||
break;
|
||||
case GFS2_QUOTA_ACCOUNT:
|
||||
state = "account";
|
||||
break;
|
||||
case GFS2_QUOTA_ON:
|
||||
state = "on";
|
||||
break;
|
||||
default:
|
||||
state = "unknown";
|
||||
break;
|
||||
}
|
||||
seq_printf(s, ",quota=%s", state);
|
||||
}
|
||||
if (args->ar_suiddir)
|
||||
seq_printf(s, ",suiddir");
|
||||
if (args->ar_data != GFS2_DATA_DEFAULT) {
|
||||
char *state;
|
||||
switch (args->ar_data) {
|
||||
case GFS2_DATA_WRITEBACK:
|
||||
state = "writeback";
|
||||
break;
|
||||
case GFS2_DATA_ORDERED:
|
||||
state = "ordered";
|
||||
break;
|
||||
default:
|
||||
state = "unknown";
|
||||
break;
|
||||
}
|
||||
seq_printf(s, ",data=%s", state);
|
||||
}
|
||||
if (args->ar_discard)
|
||||
seq_printf(s, ",discard");
|
||||
lfsecs = sdp->sd_tune.gt_log_flush_secs;
|
||||
if (lfsecs != 60)
|
||||
seq_printf(s, ",commit=%d", lfsecs);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* We have to (at the moment) hold the inodes main lock to cover
|
||||
* the gap between unlocking the shared lock on the iopen lock and
|
||||
* taking the exclusive lock. I'd rather do a shared -> exclusive
|
||||
* conversion on the iopen lock, but we can change that later. This
|
||||
* is safe, just less efficient.
|
||||
*/
|
||||
|
||||
static void gfs2_delete_inode(struct inode *inode)
|
||||
{
|
||||
struct gfs2_sbd *sdp = inode->i_sb->s_fs_info;
|
||||
struct gfs2_inode *ip = GFS2_I(inode);
|
||||
struct gfs2_holder gh;
|
||||
int error;
|
||||
|
||||
if (!test_bit(GIF_USER, &ip->i_flags))
|
||||
goto out;
|
||||
|
||||
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
|
||||
if (unlikely(error)) {
|
||||
gfs2_glock_dq_uninit(&ip->i_iopen_gh);
|
||||
goto out;
|
||||
}
|
||||
|
||||
gfs2_glock_dq_wait(&ip->i_iopen_gh);
|
||||
gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | GL_NOCACHE, &ip->i_iopen_gh);
|
||||
error = gfs2_glock_nq(&ip->i_iopen_gh);
|
||||
if (error)
|
||||
goto out_truncate;
|
||||
|
||||
if (S_ISDIR(inode->i_mode) &&
|
||||
(ip->i_diskflags & GFS2_DIF_EXHASH)) {
|
||||
error = gfs2_dir_exhash_dealloc(ip);
|
||||
if (error)
|
||||
goto out_unlock;
|
||||
}
|
||||
|
||||
if (ip->i_eattr) {
|
||||
error = gfs2_ea_dealloc(ip);
|
||||
if (error)
|
||||
goto out_unlock;
|
||||
}
|
||||
|
||||
if (!gfs2_is_stuffed(ip)) {
|
||||
error = gfs2_file_dealloc(ip);
|
||||
if (error)
|
||||
goto out_unlock;
|
||||
}
|
||||
|
||||
error = gfs2_dinode_dealloc(ip);
|
||||
if (error)
|
||||
goto out_unlock;
|
||||
|
||||
out_truncate:
|
||||
error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks);
|
||||
if (error)
|
||||
goto out_unlock;
|
||||
/* Needs to be done before glock release & also in a transaction */
|
||||
truncate_inode_pages(&inode->i_data, 0);
|
||||
gfs2_trans_end(sdp);
|
||||
|
||||
out_unlock:
|
||||
if (test_bit(HIF_HOLDER, &ip->i_iopen_gh.gh_iflags))
|
||||
gfs2_glock_dq(&ip->i_iopen_gh);
|
||||
gfs2_holder_uninit(&ip->i_iopen_gh);
|
||||
gfs2_glock_dq_uninit(&gh);
|
||||
if (error && error != GLR_TRYFAILED && error != -EROFS)
|
||||
fs_warn(sdp, "gfs2_delete_inode: %d\n", error);
|
||||
out:
|
||||
truncate_inode_pages(&inode->i_data, 0);
|
||||
clear_inode(inode);
|
||||
}
|
||||
|
||||
static struct inode *gfs2_alloc_inode(struct super_block *sb)
|
||||
{
|
||||
struct gfs2_inode *ip;
|
||||
|
||||
ip = kmem_cache_alloc(gfs2_inode_cachep, GFP_KERNEL);
|
||||
if (ip) {
|
||||
ip->i_flags = 0;
|
||||
ip->i_gl = NULL;
|
||||
}
|
||||
return &ip->i_inode;
|
||||
}
|
||||
|
||||
static void gfs2_destroy_inode(struct inode *inode)
|
||||
{
|
||||
kmem_cache_free(gfs2_inode_cachep, inode);
|
||||
}
|
||||
|
||||
const struct super_operations gfs2_super_ops = {
|
||||
.alloc_inode = gfs2_alloc_inode,
|
||||
.destroy_inode = gfs2_destroy_inode,
|
||||
.write_inode = gfs2_write_inode,
|
||||
.delete_inode = gfs2_delete_inode,
|
||||
.put_super = gfs2_put_super,
|
||||
.write_super = gfs2_write_super,
|
||||
.sync_fs = gfs2_sync_fs,
|
||||
.freeze_fs = gfs2_freeze,
|
||||
.unfreeze_fs = gfs2_unfreeze,
|
||||
.statfs = gfs2_statfs,
|
||||
.remount_fs = gfs2_remount_fs,
|
||||
.clear_inode = gfs2_clear_inode,
|
||||
.drop_inode = gfs2_drop_inode,
|
||||
.show_options = gfs2_show_options,
|
||||
};
|
||||
|
||||
|
|
243
fs/gfs2/sys.c
243
fs/gfs2/sys.c
|
@ -26,6 +26,36 @@
|
|||
#include "util.h"
|
||||
#include "glops.h"
|
||||
|
||||
struct gfs2_attr {
|
||||
struct attribute attr;
|
||||
ssize_t (*show)(struct gfs2_sbd *, char *);
|
||||
ssize_t (*store)(struct gfs2_sbd *, const char *, size_t);
|
||||
};
|
||||
|
||||
static ssize_t gfs2_attr_show(struct kobject *kobj, struct attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj);
|
||||
struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr);
|
||||
return a->show ? a->show(sdp, buf) : 0;
|
||||
}
|
||||
|
||||
static ssize_t gfs2_attr_store(struct kobject *kobj, struct attribute *attr,
|
||||
const char *buf, size_t len)
|
||||
{
|
||||
struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj);
|
||||
struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr);
|
||||
return a->store ? a->store(sdp, buf, len) : len;
|
||||
}
|
||||
|
||||
static struct sysfs_ops gfs2_attr_ops = {
|
||||
.show = gfs2_attr_show,
|
||||
.store = gfs2_attr_store,
|
||||
};
|
||||
|
||||
|
||||
static struct kset *gfs2_kset;
|
||||
|
||||
static ssize_t id_show(struct gfs2_sbd *sdp, char *buf)
|
||||
{
|
||||
return snprintf(buf, PAGE_SIZE, "%u:%u\n",
|
||||
|
@ -212,11 +242,6 @@ static ssize_t demote_rq_store(struct gfs2_sbd *sdp, const char *buf, size_t len
|
|||
return len;
|
||||
}
|
||||
|
||||
struct gfs2_attr {
|
||||
struct attribute attr;
|
||||
ssize_t (*show)(struct gfs2_sbd *, char *);
|
||||
ssize_t (*store)(struct gfs2_sbd *, const char *, size_t);
|
||||
};
|
||||
|
||||
#define GFS2_ATTR(name, mode, show, store) \
|
||||
static struct gfs2_attr gfs2_attr_##name = __ATTR(name, mode, show, store)
|
||||
|
@ -246,58 +271,11 @@ static struct attribute *gfs2_attrs[] = {
|
|||
NULL,
|
||||
};
|
||||
|
||||
static ssize_t gfs2_attr_show(struct kobject *kobj, struct attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj);
|
||||
struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr);
|
||||
return a->show ? a->show(sdp, buf) : 0;
|
||||
}
|
||||
|
||||
static ssize_t gfs2_attr_store(struct kobject *kobj, struct attribute *attr,
|
||||
const char *buf, size_t len)
|
||||
{
|
||||
struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj);
|
||||
struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr);
|
||||
return a->store ? a->store(sdp, buf, len) : len;
|
||||
}
|
||||
|
||||
static struct sysfs_ops gfs2_attr_ops = {
|
||||
.show = gfs2_attr_show,
|
||||
.store = gfs2_attr_store,
|
||||
};
|
||||
|
||||
static struct kobj_type gfs2_ktype = {
|
||||
.default_attrs = gfs2_attrs,
|
||||
.sysfs_ops = &gfs2_attr_ops,
|
||||
};
|
||||
|
||||
static struct kset *gfs2_kset;
|
||||
|
||||
/*
|
||||
* display struct lm_lockstruct fields
|
||||
*/
|
||||
|
||||
struct lockstruct_attr {
|
||||
struct attribute attr;
|
||||
ssize_t (*show)(struct gfs2_sbd *, char *);
|
||||
};
|
||||
|
||||
#define LOCKSTRUCT_ATTR(name, fmt) \
|
||||
static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \
|
||||
{ \
|
||||
return snprintf(buf, PAGE_SIZE, fmt, sdp->sd_lockstruct.ls_##name); \
|
||||
} \
|
||||
static struct lockstruct_attr lockstruct_attr_##name = __ATTR_RO(name)
|
||||
|
||||
LOCKSTRUCT_ATTR(jid, "%u\n");
|
||||
LOCKSTRUCT_ATTR(first, "%u\n");
|
||||
|
||||
static struct attribute *lockstruct_attrs[] = {
|
||||
&lockstruct_attr_jid.attr,
|
||||
&lockstruct_attr_first.attr,
|
||||
NULL,
|
||||
};
|
||||
|
||||
/*
|
||||
* lock_module. Originally from lock_dlm
|
||||
|
@ -359,34 +337,33 @@ static ssize_t first_done_show(struct gfs2_sbd *sdp, char *buf)
|
|||
return sprintf(buf, "%d\n", ls->ls_first_done);
|
||||
}
|
||||
|
||||
static ssize_t recover_show(struct gfs2_sbd *sdp, char *buf)
|
||||
{
|
||||
struct lm_lockstruct *ls = &sdp->sd_lockstruct;
|
||||
return sprintf(buf, "%d\n", ls->ls_recover_jid);
|
||||
}
|
||||
|
||||
static void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid)
|
||||
static ssize_t recover_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
|
||||
{
|
||||
unsigned jid;
|
||||
struct gfs2_jdesc *jd;
|
||||
int rv;
|
||||
|
||||
rv = sscanf(buf, "%u", &jid);
|
||||
if (rv != 1)
|
||||
return -EINVAL;
|
||||
|
||||
rv = -ESHUTDOWN;
|
||||
spin_lock(&sdp->sd_jindex_spin);
|
||||
if (test_bit(SDF_NORECOVERY, &sdp->sd_flags))
|
||||
goto out;
|
||||
rv = -EBUSY;
|
||||
if (sdp->sd_jdesc->jd_jid == jid)
|
||||
goto out;
|
||||
rv = -ENOENT;
|
||||
list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
|
||||
if (jd->jd_jid != jid)
|
||||
continue;
|
||||
jd->jd_dirty = 1;
|
||||
rv = slow_work_enqueue(&jd->jd_work);
|
||||
break;
|
||||
}
|
||||
out:
|
||||
spin_unlock(&sdp->sd_jindex_spin);
|
||||
}
|
||||
|
||||
static ssize_t recover_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
|
||||
{
|
||||
struct lm_lockstruct *ls = &sdp->sd_lockstruct;
|
||||
ls->ls_recover_jid = simple_strtol(buf, NULL, 0);
|
||||
gfs2_jdesc_make_dirty(sdp, ls->ls_recover_jid);
|
||||
if (sdp->sd_recoverd_process)
|
||||
wake_up_process(sdp->sd_recoverd_process);
|
||||
return len;
|
||||
return rv ? rv : len;
|
||||
}
|
||||
|
||||
static ssize_t recover_done_show(struct gfs2_sbd *sdp, char *buf)
|
||||
|
@ -401,31 +378,31 @@ static ssize_t recover_status_show(struct gfs2_sbd *sdp, char *buf)
|
|||
return sprintf(buf, "%d\n", ls->ls_recover_jid_status);
|
||||
}
|
||||
|
||||
struct gdlm_attr {
|
||||
struct attribute attr;
|
||||
ssize_t (*show)(struct gfs2_sbd *sdp, char *);
|
||||
ssize_t (*store)(struct gfs2_sbd *sdp, const char *, size_t);
|
||||
};
|
||||
static ssize_t jid_show(struct gfs2_sbd *sdp, char *buf)
|
||||
{
|
||||
return sprintf(buf, "%u\n", sdp->sd_lockstruct.ls_jid);
|
||||
}
|
||||
|
||||
#define GDLM_ATTR(_name,_mode,_show,_store) \
|
||||
static struct gdlm_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store)
|
||||
static struct gfs2_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store)
|
||||
|
||||
GDLM_ATTR(proto_name, 0444, proto_name_show, NULL);
|
||||
GDLM_ATTR(block, 0644, block_show, block_store);
|
||||
GDLM_ATTR(withdraw, 0644, withdraw_show, withdraw_store);
|
||||
GDLM_ATTR(id, 0444, lkid_show, NULL);
|
||||
GDLM_ATTR(first, 0444, lkfirst_show, NULL);
|
||||
GDLM_ATTR(first_done, 0444, first_done_show, NULL);
|
||||
GDLM_ATTR(recover, 0644, recover_show, recover_store);
|
||||
GDLM_ATTR(recover_done, 0444, recover_done_show, NULL);
|
||||
GDLM_ATTR(recover_status, 0444, recover_status_show, NULL);
|
||||
GDLM_ATTR(proto_name, 0444, proto_name_show, NULL);
|
||||
GDLM_ATTR(block, 0644, block_show, block_store);
|
||||
GDLM_ATTR(withdraw, 0644, withdraw_show, withdraw_store);
|
||||
GDLM_ATTR(id, 0444, lkid_show, NULL);
|
||||
GDLM_ATTR(jid, 0444, jid_show, NULL);
|
||||
GDLM_ATTR(first, 0444, lkfirst_show, NULL);
|
||||
GDLM_ATTR(first_done, 0444, first_done_show, NULL);
|
||||
GDLM_ATTR(recover, 0200, NULL, recover_store);
|
||||
GDLM_ATTR(recover_done, 0444, recover_done_show, NULL);
|
||||
GDLM_ATTR(recover_status, 0444, recover_status_show, NULL);
|
||||
|
||||
static struct attribute *lock_module_attrs[] = {
|
||||
&gdlm_attr_proto_name.attr,
|
||||
&gdlm_attr_block.attr,
|
||||
&gdlm_attr_withdraw.attr,
|
||||
&gdlm_attr_id.attr,
|
||||
&lockstruct_attr_jid.attr,
|
||||
&gdlm_attr_jid.attr,
|
||||
&gdlm_attr_first.attr,
|
||||
&gdlm_attr_first_done.attr,
|
||||
&gdlm_attr_recover.attr,
|
||||
|
@ -434,53 +411,6 @@ static struct attribute *lock_module_attrs[] = {
|
|||
NULL,
|
||||
};
|
||||
|
||||
/*
|
||||
* display struct gfs2_args fields
|
||||
*/
|
||||
|
||||
struct args_attr {
|
||||
struct attribute attr;
|
||||
ssize_t (*show)(struct gfs2_sbd *, char *);
|
||||
};
|
||||
|
||||
#define ARGS_ATTR(name, fmt) \
|
||||
static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \
|
||||
{ \
|
||||
return snprintf(buf, PAGE_SIZE, fmt, sdp->sd_args.ar_##name); \
|
||||
} \
|
||||
static struct args_attr args_attr_##name = __ATTR_RO(name)
|
||||
|
||||
ARGS_ATTR(lockproto, "%s\n");
|
||||
ARGS_ATTR(locktable, "%s\n");
|
||||
ARGS_ATTR(hostdata, "%s\n");
|
||||
ARGS_ATTR(spectator, "%d\n");
|
||||
ARGS_ATTR(ignore_local_fs, "%d\n");
|
||||
ARGS_ATTR(localcaching, "%d\n");
|
||||
ARGS_ATTR(localflocks, "%d\n");
|
||||
ARGS_ATTR(debug, "%d\n");
|
||||
ARGS_ATTR(upgrade, "%d\n");
|
||||
ARGS_ATTR(posix_acl, "%d\n");
|
||||
ARGS_ATTR(quota, "%u\n");
|
||||
ARGS_ATTR(suiddir, "%d\n");
|
||||
ARGS_ATTR(data, "%d\n");
|
||||
|
||||
static struct attribute *args_attrs[] = {
|
||||
&args_attr_lockproto.attr,
|
||||
&args_attr_locktable.attr,
|
||||
&args_attr_hostdata.attr,
|
||||
&args_attr_spectator.attr,
|
||||
&args_attr_ignore_local_fs.attr,
|
||||
&args_attr_localcaching.attr,
|
||||
&args_attr_localflocks.attr,
|
||||
&args_attr_debug.attr,
|
||||
&args_attr_upgrade.attr,
|
||||
&args_attr_posix_acl.attr,
|
||||
&args_attr_quota.attr,
|
||||
&args_attr_suiddir.attr,
|
||||
&args_attr_data.attr,
|
||||
NULL,
|
||||
};
|
||||
|
||||
/*
|
||||
* get and set struct gfs2_tune fields
|
||||
*/
|
||||
|
@ -531,14 +461,8 @@ static ssize_t tune_set(struct gfs2_sbd *sdp, unsigned int *field,
|
|||
return len;
|
||||
}
|
||||
|
||||
struct tune_attr {
|
||||
struct attribute attr;
|
||||
ssize_t (*show)(struct gfs2_sbd *, char *);
|
||||
ssize_t (*store)(struct gfs2_sbd *, const char *, size_t);
|
||||
};
|
||||
|
||||
#define TUNE_ATTR_3(name, show, store) \
|
||||
static struct tune_attr tune_attr_##name = __ATTR(name, 0644, show, store)
|
||||
static struct gfs2_attr tune_attr_##name = __ATTR(name, 0644, show, store)
|
||||
|
||||
#define TUNE_ATTR_2(name, store) \
|
||||
static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \
|
||||
|
@ -554,15 +478,6 @@ static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\
|
|||
} \
|
||||
TUNE_ATTR_2(name, name##_store)
|
||||
|
||||
#define TUNE_ATTR_DAEMON(name, process) \
|
||||
static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\
|
||||
{ \
|
||||
ssize_t r = tune_set(sdp, &sdp->sd_tune.gt_##name, 1, buf, len); \
|
||||
wake_up_process(sdp->sd_##process); \
|
||||
return r; \
|
||||
} \
|
||||
TUNE_ATTR_2(name, name##_store)
|
||||
|
||||
TUNE_ATTR(incore_log_blocks, 0);
|
||||
TUNE_ATTR(log_flush_secs, 0);
|
||||
TUNE_ATTR(quota_warn_period, 0);
|
||||
|
@ -574,8 +489,6 @@ TUNE_ATTR(new_files_jdata, 0);
|
|||
TUNE_ATTR(quota_simul_sync, 1);
|
||||
TUNE_ATTR(stall_secs, 1);
|
||||
TUNE_ATTR(statfs_quantum, 1);
|
||||
TUNE_ATTR_DAEMON(recoverd_secs, recoverd_process);
|
||||
TUNE_ATTR_DAEMON(logd_secs, logd_process);
|
||||
TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store);
|
||||
|
||||
static struct attribute *tune_attrs[] = {
|
||||
|
@ -589,23 +502,11 @@ static struct attribute *tune_attrs[] = {
|
|||
&tune_attr_quota_simul_sync.attr,
|
||||
&tune_attr_stall_secs.attr,
|
||||
&tune_attr_statfs_quantum.attr,
|
||||
&tune_attr_recoverd_secs.attr,
|
||||
&tune_attr_logd_secs.attr,
|
||||
&tune_attr_quota_scale.attr,
|
||||
&tune_attr_new_files_jdata.attr,
|
||||
NULL,
|
||||
};
|
||||
|
||||
static struct attribute_group lockstruct_group = {
|
||||
.name = "lockstruct",
|
||||
.attrs = lockstruct_attrs,
|
||||
};
|
||||
|
||||
static struct attribute_group args_group = {
|
||||
.name = "args",
|
||||
.attrs = args_attrs,
|
||||
};
|
||||
|
||||
static struct attribute_group tune_group = {
|
||||
.name = "tune",
|
||||
.attrs = tune_attrs,
|
||||
|
@ -626,17 +527,9 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
|
|||
if (error)
|
||||
goto fail;
|
||||
|
||||
error = sysfs_create_group(&sdp->sd_kobj, &lockstruct_group);
|
||||
if (error)
|
||||
goto fail_reg;
|
||||
|
||||
error = sysfs_create_group(&sdp->sd_kobj, &args_group);
|
||||
if (error)
|
||||
goto fail_lockstruct;
|
||||
|
||||
error = sysfs_create_group(&sdp->sd_kobj, &tune_group);
|
||||
if (error)
|
||||
goto fail_args;
|
||||
goto fail_reg;
|
||||
|
||||
error = sysfs_create_group(&sdp->sd_kobj, &lock_module_group);
|
||||
if (error)
|
||||
|
@ -647,10 +540,6 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
|
|||
|
||||
fail_tune:
|
||||
sysfs_remove_group(&sdp->sd_kobj, &tune_group);
|
||||
fail_args:
|
||||
sysfs_remove_group(&sdp->sd_kobj, &args_group);
|
||||
fail_lockstruct:
|
||||
sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group);
|
||||
fail_reg:
|
||||
kobject_put(&sdp->sd_kobj);
|
||||
fail:
|
||||
|
@ -661,8 +550,6 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
|
|||
void gfs2_sys_fs_del(struct gfs2_sbd *sdp)
|
||||
{
|
||||
sysfs_remove_group(&sdp->sd_kobj, &tune_group);
|
||||
sysfs_remove_group(&sdp->sd_kobj, &args_group);
|
||||
sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group);
|
||||
sysfs_remove_group(&sdp->sd_kobj, &lock_module_group);
|
||||
kobject_put(&sdp->sd_kobj);
|
||||
}
|
||||
|
|
|
@ -33,6 +33,9 @@ int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
|
|||
BUG_ON(current->journal_info);
|
||||
BUG_ON(blocks == 0 && revokes == 0);
|
||||
|
||||
if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
|
||||
return -EROFS;
|
||||
|
||||
tr = kzalloc(sizeof(struct gfs2_trans), GFP_NOFS);
|
||||
if (!tr)
|
||||
return -ENOMEM;
|
||||
|
@ -54,12 +57,6 @@ int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
|
|||
if (error)
|
||||
goto fail_holder_uninit;
|
||||
|
||||
if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {
|
||||
tr->tr_t_gh.gh_flags |= GL_NOCACHE;
|
||||
error = -EROFS;
|
||||
goto fail_gunlock;
|
||||
}
|
||||
|
||||
error = gfs2_log_reserve(sdp, tr->tr_reserved);
|
||||
if (error)
|
||||
goto fail_gunlock;
|
||||
|
|
Loading…
Reference in a new issue