All the checks IS_APPEND and IS_IMMUTABLE for the fallocate operation on
the inode are done in vfs. No need to do this again in ext4. Remove it.
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The function ext4_update_i_disksize() is used in only one place, in
the function mpage_map_and_submit_extent(). Move its code to simplify
the code paths, and also move the call to ext4_mark_inode_dirty() into
the i_data_sem's critical region, to be consistent with all of the
other places where we update i_disksize. That way, we also keep the
raw_inode's i_disksize protected, to avoid the following race:
CPU #1 CPU #2
down_write(&i_data_sem)
Modify i_disk_size
up_write(&i_data_sem)
down_write(&i_data_sem)
Modify i_disk_size
Copy i_disk_size to on-disk inode
up_write(&i_data_sem)
Copy i_disk_size to on-disk inode
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: stable@vger.kernel.org
Return ENOMEM rather than EIO when find_get_page() fails in
ext4_mb_get_buddy_page_lock() and find_or_create_page() fails in
ext4_mb_load_buddy().
Signed-off-by: Younger Liu <younger.liucn@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
When mounting ext4 with data=journal option, xfstest shared/002 and
shared/004 are currently failing as checksum computed for testfile
does not match with the checksum computed in other journal modes.
In case of data=journal mode, a call to filemap_write_and_wait_range
will not flush anything to disk as buffers are not marked dirty in
write_end. In collapse range this call is followed by a call to
truncate_pagecache_range. Due to this, when checksum is computed,
a portion of file is re-read from disk which replace valid data with
NULL bytes and hence the reason for the difference in checksum.
Calling ext4_force_commit before filemap_write_and_wait_range solves
the issue as it will mark the buffers dirty during commit transaction
which can be later synced by a call to filemap_write_and_wait_range.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The special handling of PF_MEMALLOC callers in ext4_write_inode()
shouldn't be necessary as there shouldn't be any. Warn about it. Also
update comment before the function as it seems somewhat outdated.
(Changes modeled on an ext3 patch posted by Jan Kara to the linux-ext4
mailing list on Februaryt 28, 2014, which apparently never went into
the ext3 tree.)
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Jan Kara <jack@suse.cz>
When heavily exercising xattr code the assertion that
jbd2_journal_dirty_metadata() shouldn't return error was triggered:
WARNING: at /srv/autobuild-ceph/gitbuilder.git/build/fs/jbd2/transaction.c:1237
jbd2_journal_dirty_metadata+0x1ba/0x260()
CPU: 0 PID: 8877 Comm: ceph-osd Tainted: G W 3.10.0-ceph-00049-g68d04c9 #1
Hardware name: Dell Inc. PowerEdge R410/01V648, BIOS 1.6.3 02/07/2011
ffffffff81a1d3c8 ffff880214469928 ffffffff816311b0 ffff880214469968
ffffffff8103fae0 ffff880214469958 ffff880170a9dc30 ffff8802240fbe80
0000000000000000 ffff88020b366000 ffff8802256e7510 ffff880214469978
Call Trace:
[<ffffffff816311b0>] dump_stack+0x19/0x1b
[<ffffffff8103fae0>] warn_slowpath_common+0x70/0xa0
[<ffffffff8103fb2a>] warn_slowpath_null+0x1a/0x20
[<ffffffff81267c2a>] jbd2_journal_dirty_metadata+0x1ba/0x260
[<ffffffff81245093>] __ext4_handle_dirty_metadata+0xa3/0x140
[<ffffffff812561f3>] ext4_xattr_release_block+0x103/0x1f0
[<ffffffff81256680>] ext4_xattr_block_set+0x1e0/0x910
[<ffffffff8125795b>] ext4_xattr_set_handle+0x38b/0x4a0
[<ffffffff810a319d>] ? trace_hardirqs_on+0xd/0x10
[<ffffffff81257b32>] ext4_xattr_set+0xc2/0x140
[<ffffffff81258547>] ext4_xattr_user_set+0x47/0x50
[<ffffffff811935ce>] generic_setxattr+0x6e/0x90
[<ffffffff81193ecb>] __vfs_setxattr_noperm+0x7b/0x1c0
[<ffffffff811940d4>] vfs_setxattr+0xc4/0xd0
[<ffffffff8119421e>] setxattr+0x13e/0x1e0
[<ffffffff811719c7>] ? __sb_start_write+0xe7/0x1b0
[<ffffffff8118f2e8>] ? mnt_want_write_file+0x28/0x60
[<ffffffff8118c65c>] ? fget_light+0x3c/0x130
[<ffffffff8118f2e8>] ? mnt_want_write_file+0x28/0x60
[<ffffffff8118f1f8>] ? __mnt_want_write+0x58/0x70
[<ffffffff811946be>] SyS_fsetxattr+0xbe/0x100
[<ffffffff816407c2>] system_call_fastpath+0x16/0x1b
The reason for the warning is that buffer_head passed into
jbd2_journal_dirty_metadata() didn't have journal_head attached. This is
caused by the following race of two ext4_xattr_release_block() calls:
CPU1 CPU2
ext4_xattr_release_block() ext4_xattr_release_block()
lock_buffer(bh);
/* False */
if (BHDR(bh)->h_refcount == cpu_to_le32(1))
} else {
le32_add_cpu(&BHDR(bh)->h_refcount, -1);
unlock_buffer(bh);
lock_buffer(bh);
/* True */
if (BHDR(bh)->h_refcount == cpu_to_le32(1))
get_bh(bh);
ext4_free_blocks()
...
jbd2_journal_forget()
jbd2_journal_unfile_buffer()
-> JH is gone
error = ext4_handle_dirty_xattr_block(handle, inode, bh);
-> triggers the warning
We fix the problem by moving ext4_handle_dirty_xattr_block() under the
buffer lock. Sadly this cannot be done in nojournal mode as that
function can call sync_dirty_buffer() which would deadlock. Luckily in
nojournal mode the race is harmless (we only dirty already freed buffer)
and thus for nojournal mode we leave the dirtying outside of the buffer
lock.
Reported-by: Sage Weil <sage@inktank.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
ext4_end_bio() currently throws away the error that it receives. Chances
are this is part of a spate of errors, one of which will end up getting
the error returned to userspace somehow, but we shouldn't take that risk.
Also print out the errno to aid in debug.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: stable@vger.kernel.org
With EXT4FS_DEBUG ext4_count_free_clusters() will call
ext4_read_block_bitmap() without s_group_info initialized, so we need to
initialize multi-block allocator before.
And dependencies that must be solved, to allow this:
- multi-block allocator needs in group descriptors
- need to install s_op before initializing multi-block allocator,
because in ext4_mb_init_backend() new inode is created.
- initialize number of group desc blocks (s_gdb_count) otherwise
number of clusters returned by ext4_free_clusters_after_init() is not correct.
(see ext4_bg_num_gdb_nometa())
Here is the stack backtrace:
(gdb) bt
#0 ext4_get_group_info (group=0, sb=0xffff880079a10000) at ext4.h:2430
#1 ext4_validate_block_bitmap (sb=sb@entry=0xffff880079a10000,
desc=desc@entry=0xffff880056510000, block_group=block_group@entry=0,
bh=bh@entry=0xffff88007bf2b2d8) at balloc.c:358
#2 0xffffffff81232202 in ext4_wait_block_bitmap (sb=sb@entry=0xffff880079a10000,
block_group=block_group@entry=0,
bh=bh@entry=0xffff88007bf2b2d8) at balloc.c:476
#3 0xffffffff81232eaf in ext4_read_block_bitmap (sb=sb@entry=0xffff880079a10000,
block_group=block_group@entry=0) at balloc.c:489
#4 0xffffffff81232fc0 in ext4_count_free_clusters (sb=sb@entry=0xffff880079a10000) at balloc.c:665
#5 0xffffffff81259ffa in ext4_check_descriptors (first_not_zeroed=<synthetic pointer>,
sb=0xffff880079a10000) at super.c:2143
#6 ext4_fill_super (sb=sb@entry=0xffff880079a10000, data=<optimized out>,
data@entry=0x0 <irq_stack_union>, silent=silent@entry=0) at super.c:3851
...
Signed-off-by: Azat Khuzhin <a3at.mail@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
When we try to get 2^32-1 block of the file which has the extent
(ee_block=2^32-2, ee_len=1) with FIBMAP ioctl, it causes BUG_ON
in ext4_ext_put_gap_in_cache().
To avoid the problem, ext4_map_blocks() needs to check the file logical block
number. ext4_ext_put_gap_in_cache() called via ext4_map_blocks() cannot
handle 2^32-1 because the maximum file logical block number is 2^32-2.
Note that ext4_ind_map_blocks() returns -EIO when the block number is invalid.
So ext4_map_blocks() should also return the same errno.
Signed-off-by: Kazuya Mio <k-mio@sx.jp.nec.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
'0x7FDEADBEEF' will be truncated to 32-bit number under unicore32. Need
append 'ULL' for it.
The related warning (with allmodconfig under unicore32):
CC [M] fs/ext4/extents_status.o
fs/ext4/extents_status.c: In function "__es_remove_extent":
fs/ext4/extents_status.c:813: warning: integer constant is too large for "long" type
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The main changes in the XFS tree for 3.15-rc1 are:
- O_TMPFILE support
- allowing AIO+DIO writes beyond EOF
- FALLOC_FL_COLLAPSE_RANGE support for fallocate syscall and XFS
implementation
- FALLOC_FL_ZERO_RANGE support for fallocate syscall and XFS
implementation
- IO verifier cleanup and rework
- stack usage reduction changes
- vm_map_ram NOIO context fixes to remove lockdep warings
- various bug fixes and cleanups
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=uSkJ
-----END PGP SIGNATURE-----
Merge tag 'xfs-for-linus-3.15-rc1' of git://oss.sgi.com/xfs/xfs
Pull xfs update from Dave Chinner:
"There are a couple of new fallocate features in this request - it was
decided that it was easiest to push them through the XFS tree using
topic branches and have the ext4 support be based on those branches.
Hence you may see some overlap with the ext4 tree merge depending on
how they including those topic branches into their tree. Other than
that, there is O_TMPFILE support, some cleanups and bug fixes.
The main changes in the XFS tree for 3.15-rc1 are:
- O_TMPFILE support
- allowing AIO+DIO writes beyond EOF
- FALLOC_FL_COLLAPSE_RANGE support for fallocate syscall and XFS
implementation
- FALLOC_FL_ZERO_RANGE support for fallocate syscall and XFS
implementation
- IO verifier cleanup and rework
- stack usage reduction changes
- vm_map_ram NOIO context fixes to remove lockdep warings
- various bug fixes and cleanups"
* tag 'xfs-for-linus-3.15-rc1' of git://oss.sgi.com/xfs/xfs: (34 commits)
xfs: fix directory hash ordering bug
xfs: extra semi-colon breaks a condition
xfs: Add support for FALLOC_FL_ZERO_RANGE
fs: Introduce FALLOC_FL_ZERO_RANGE flag for fallocate
xfs: inode log reservations are still too small
xfs: xfs_check_page_type buffer checks need help
xfs: avoid AGI/AGF deadlock scenario for inode chunk allocation
xfs: use NOIO contexts for vm_map_ram
xfs: don't leak EFSBADCRC to userspace
xfs: fix directory inode iolock lockdep false positive
xfs: allocate xfs_da_args to reduce stack footprint
xfs: always do log forces via the workqueue
xfs: modify verifiers to differentiate CRC from other errors
xfs: print useful caller information in xfs_error_report
xfs: add xfs_verifier_error()
xfs: add helper for updating checksums on xfs_bufs
xfs: add helper for verifying checksums on xfs_bufs
xfs: Use defines for CRC offsets in all cases
xfs: skip pointless CRC updates after verifier failures
xfs: Add support FALLOC_FL_COLLAPSE_RANGE for fallocate
...
and COLLAPSE_RANGE fallocate operations, and scalability improvements
in the jbd2 layer and in xattr handling when the extended attributes
spill over into an external block.
Other than that, the usual clean ups and minor bug fixes.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=4s1Z
-----END PGP SIGNATURE-----
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"Major changes for 3.14 include support for the newly added ZERO_RANGE
and COLLAPSE_RANGE fallocate operations, and scalability improvements
in the jbd2 layer and in xattr handling when the extended attributes
spill over into an external block.
Other than that, the usual clean ups and minor bug fixes"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (42 commits)
ext4: fix premature freeing of partial clusters split across leaf blocks
ext4: remove unneeded test of ret variable
ext4: fix comment typo
ext4: make ext4_block_zero_page_range static
ext4: atomically set inode->i_flags in ext4_set_inode_flags()
ext4: optimize Hurd tests when reading/writing inodes
ext4: kill i_version support for Hurd-castrated file systems
ext4: each filesystem creates and uses its own mb_cache
fs/mbcache.c: doucple the locking of local from global data
fs/mbcache.c: change block and index hash chain to hlist_bl_node
ext4: Introduce FALLOC_FL_ZERO_RANGE flag for fallocate
ext4: refactor ext4_fallocate code
ext4: Update inode i_size after the preallocation
ext4: fix partial cluster handling for bigalloc file systems
ext4: delete path dealloc code in ext4_ext_handle_uninitialized_extents
ext4: only call sync_filesystm() when remounting read-only
fs: push sync_filesystem() down to the file system's remount_fs()
jbd2: improve error messages for inconsistent journal heads
jbd2: minimize region locked by j_list_lock in jbd2_journal_forget()
jbd2: minimize region locked by j_list_lock in journal_get_create_access()
...
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)
iQIcBAABAgAGBQJTO0ytAAoJEKurIx+X31iBRlMP/33oGKncx/iQOi8MqNOvOzXG
o6y6jVXosn/0sbiSnqcDtne/VstVP4RbmLpwm22tSD5QALGVubdhK+ryJ9PGC7gZ
2wXUP75UN3BXTqzCSE3vXchQnNJooT2EjX16sZ/PvR4lO1QrWKlozuWvTR9Qhbdb
czWh/pWrlckhgl1CR01haAdlmFo3M2/6CvkpBW7hDiY8yvBl9g0MrFPHLQH6Y15p
kAIXQSYYVctT0xhOiMSodl6K0hpH4iRi8t2c5jUfRL6M56Ggfw1h7tVgc25ZU5NO
/aG7k3MtKosxd7yk+Nz2bArOki22w+jXFSP45hjnZwOP096m4z6jBRawjb9/nNla
WNfrRCTnBn8caBAasz+b3obAuX25w2YW86ITq+G54541llQCmj07KXBx8Z6TC0bI
MVFG9wFbCghd0dal4DWkQ+tOLyZFVWWwChNnZahiPONzSqSMMR+Xr6dNNwMjPMm/
HSM+PNUxvgLRuVvn3zLKaJp+2WugVxqBFyRdMeKRPsqzBqZ9HSkPfqkAuZg/7CZa
Yq1HBMR8ctWGbpTdxMZ1WEh2FTfuL8l/hr+Ns3Efe7+G2muXmCP2x1TvPOF2djlK
f7udwp62ZR6D5SZvWW9nUBZTmgCJ264ypk3hS4f4Sbu42bvttyHkYPKMDuGFioYR
PUXMWhcQoyB4PGh09NMr
=zOOz
-----END PGP SIGNATURE-----
Merge tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
Pull pstore fixes from Tony Luck:
"Series of small bug fixes for pstore"
* tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
pstore: Fix memory leak when decompress using big_oops_buf
pstore: Fix buffer overflow while write offset equal to buffer size
pstore: Correct the max_dump_cnt clearing of ramoops
pstore: Fix NULL pointer fault if get NULL prz in ramoops_get_next_prz
pstore: skip zero size persistent ram buffer in traverse
pstore: clarify clearing of _read_cnt in ramoops_context
access to UBI volumes. It is useful for those who want to use squashfs on top
of raw flash devices. UBI will provide bit-flip handling and wear-levelling in
this case (e.g., if there are other UBI volumes with R/W UBIFS too).
The driver is actually pretty small and it is part of the UBI kernel subsystem.
Delivered by Ezequiel Garcia, along with a piece of documentation on the MTD
web site and the user-space tool for creating and removing block devices.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=SGfE
-----END PGP SIGNATURE-----
Merge tag 'upstream-3.15-rc1' of git://git.infradead.org/linux-ubifs
Pull ubifs updates from Artem Bityutskiy:
"This pull request includes the 'ubiblock' driver which provides R/O
block access to UBI volumes. It is useful for those who want to use
squashfs on top of raw flash devices. UBI will provide bit-flip
handling and wear-levelling in this case (e.g., if there are other UBI
volumes with R/W UBIFS too).
The driver is actually pretty small and it is part of the UBI kernel
subsystem. Delivered by Ezequiel Garcia, along with a piece of
documentation on the MTD web site and the user-space tool for creating
and removing block devices"
* tag 'upstream-3.15-rc1' of git://git.infradead.org/linux-ubifs:
UBI: block: Remove __initdata from ubiblock_param_ops
UBI: make UBI_IOCVOLCRBLK take a parameter for future usage
UBI: rename block device ioctls
UBI: block: Use ENOSYS as return value when CONFIG_UBIBLOCK=n
UBI: block: Add CONFIG_BLOCK dependency
UBI: block: Use 'u64' for the 64-bit dividend
UBI: block: Mark init-only symbol as __initdata
UBI: block: do not use term "attach"
UBI: R/O block driver on top of UBI volumes
Pull fuse update from Miklos Szeredi:
"This series adds cached writeback support to fuse, improving write
throughput"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: fix "uninitialized variable" warning
fuse: Turn writeback cache on
fuse: Fix O_DIRECT operations vs cached writeback misorder
fuse: fuse_flush() should wait on writeback
fuse: Implement write_begin/write_end callbacks
fuse: restructure fuse_readpage()
fuse: Flush files on wb close
fuse: Trust kernel i_mtime only
fuse: Trust kernel i_size only
fuse: Connection bit for enabling writeback
fuse: Prepare to handle short reads
fuse: Linking file to inode helper
This set includes a couple trivial cleanups and changes recovery
log messages from DEBUG to INFO.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (GNU/Linux)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=Ljna
-----END PGP SIGNATURE-----
Merge tag 'dlm-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
"This set includes a couple trivial cleanups and changes recovery log
messages from DEBUG to INFO"
* tag 'dlm-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
dlm: use INFO for recovery messages
fs: Include appropriate header file in dlm/ast.c
dlm: silence a harmless use after free warning
Pull btrfs changes from Chris Mason:
"This is a pretty long stream of bug fixes and performance fixes.
Qu Wenruo has replaced the btrfs async threads with regular kernel
workqueues. We'll keep an eye out for performance differences, but
it's nice to be using more generic code for this.
We still have some corruption fixes and other patches coming in for
the merge window, but this batch is tested and ready to go"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (108 commits)
Btrfs: fix a crash of clone with inline extents's split
btrfs: fix uninit variable warning
Btrfs: take into account total references when doing backref lookup
Btrfs: part 2, fix incremental send's decision to delay a dir move/rename
Btrfs: fix incremental send's decision to delay a dir move/rename
Btrfs: remove unnecessary inode generation lookup in send
Btrfs: fix race when updating existing ref head
btrfs: Add trace for btrfs_workqueue alloc/destroy
Btrfs: less fs tree lock contention when using autodefrag
Btrfs: return EPERM when deleting a default subvolume
Btrfs: add missing kfree in btrfs_destroy_workqueue
Btrfs: cache extent states in defrag code path
Btrfs: fix deadlock with nested trans handles
Btrfs: fix possible empty list access when flushing the delalloc inodes
Btrfs: split the global ordered extents mutex
Btrfs: don't flush all delalloc inodes when we doesn't get s_umount lock
Btrfs: reclaim delalloc metadata more aggressively
Btrfs: remove unnecessary lock in may_commit_transaction()
Btrfs: remove the unnecessary flush when preparing the pages
Btrfs: just do dirty page flush for the inode with compression before direct IO
...
but instead the widening contributor base. It is good to see that
interest is increasing in GFS2, and I'd like to thank all the
contributors to this patch set.
In addition to the usual set of bug fixes and clean ups, there are
patches to improve inode creation performance when xattrs are
required and some improvements to the transaction code which is
intended to help improve scalability after further changes in due
course.
Journal extent mapping is also updated to make it more efficient
and again, this is a foundation for future work in this area.
The maximum number of ACLs has been increased to 300 (for a 4k
block size) which means that even with a few additional xattrs
from selinux, everything should fit within a single fs block.
There is also a patch to bring GFS2's own copy of the writepages
code up to the same level as the core VFS. Eventually we may be
able to merge some of this code, since it is fairly similar.
The other major change this time, is bringing consistency to
the printing of messages via fs_<level>, pr_<level> macros.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (GNU/Linux)
iQIcBAABAgAGBQJTOn+JAAoJEMrg3m4a/8jSSoYQALctSOmyGW978JMAKiwuUeSr
367ho/I/WfZWybWH7iZ/hdEMNCUCnP3C1ZJhYKJ6J60h35p1hIK7DYp9tOy0RsTS
JD3VamE/jboljXyZaaMCtly7HPQMV82rRmI3+bSoXpT4mPz+PB+kRCe2QkvyVAsh
5tojtLz6L/In/eo4UlqZjn1BITcYRL5AgMi+8h8h6Foi4MgnFISZbezC6U5eO46P
DT/xwd0fw+o5ZTm/dTQmhCCH30y4cpKZnNhi+xhHrEm95gBZWcONHD0qyNZe3fBc
WuGUU9hURHHkqT671T7sBGzfNrsKk1OgNzFNy1YrF5C+t6hpG9iAKRIHtuVqSqPx
OblhKP0lebDY1L41NqZR4Up+pUjCMxOs3f+FAl2rlHRBIQdroOu82CZHdTBfM/HJ
1ZvkMrIkxMKb7RtSnTdXsPxcPPZNakHhDaNxHMmMlFlflbXGQqWZaMMhK181d7dn
Y0WU2ayPmjjUdO5OnekMV5J/hNYNLobnV9OO75j4pyqlnHLIIycc/wgNULcU+OJ6
GooOQJNnnAo+2JUvS+Ejn88q2if05HOg4fCXRfu4bdA2zDehei1jr5xz5IWj0OAM
AlmTgUYzK7osvA1XtNd6naCmes+fnm3+Jfh0+YtpeZKgCvaYYCoZCHJccb+a0AIq
7dTkyCQtgsKE+yjPKose
=IWmZ
-----END PGP SIGNATURE-----
Merge tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw
Pull GFS2 updates from Steven Whitehouse:
"One of the main highlights this time, is not the patches themselves
but instead the widening contributor base. It is good to see that
interest is increasing in GFS2, and I'd like to thank all the
contributors to this patch set.
In addition to the usual set of bug fixes and clean ups, there are
patches to improve inode creation performance when xattrs are required
and some improvements to the transaction code which is intended to
help improve scalability after further changes in due course.
Journal extent mapping is also updated to make it more efficient and
again, this is a foundation for future work in this area.
The maximum number of ACLs has been increased to 300 (for a 4k block
size) which means that even with a few additional xattrs from selinux,
everything should fit within a single fs block.
There is also a patch to bring GFS2's own copy of the writepages code
up to the same level as the core VFS. Eventually we may be able to
merge some of this code, since it is fairly similar.
The other major change this time, is bringing consistency to the
printing of messages via fs_<level>, pr_<level> macros"
* tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw: (29 commits)
GFS2: Fix address space from page function
GFS2: Fix uninitialized VFS inode in gfs2_create_inode
GFS2: Fix return value in slot_get()
GFS2: inline function gfs2_set_mode
GFS2: Remove extraneous function gfs2_security_init
GFS2: Increase the max number of ACLs
GFS2: Re-add a call to log_flush_wait when flushing the journal
GFS2: Ensure workqueue is scheduled after noexp request
GFS2: check NULL return value in gfs2_ok_to_move
GFS2: Convert gfs2_lm_withdraw to use fs_err
GFS2: Use fs_<level> more often
GFS2: Use pr_<level> more consistently
GFS2: Move recovery variables to journal structure in memory
GFS2: global conversion to pr_foo()
GFS2: return -E2BIG if hit the maximum limits of ACLs
GFS2: Clean up journal extent mapping
GFS2: replace kmalloc - __vmalloc / memset 0
GFS2: Remove extra "if" in gfs2_log_flush()
fs: NULL dereference in posix_acl_to_xattr()
GFS2: Move log buffer accounting to transaction
...
Pull file locking updates from Jeff Layton:
"Highlights:
- maintainership change for fs/locks.c. Willy's not interested in
maintaining it these days, and is OK with Bruce and I taking it.
- fix for open vs setlease race that Al ID'ed
- cleanup and consolidation of file locking code
- eliminate unneeded BUG() call
- merge of file-private lock implementation"
* 'locks-3.15' of git://git.samba.org/jlayton/linux:
locks: make locks_mandatory_area check for file-private locks
locks: fix locks_mandatory_locked to respect file-private locks
locks: require that flock->l_pid be set to 0 for file-private locks
locks: add new fcntl cmd values for handling file private locks
locks: skip deadlock detection on FL_FILE_PVT locks
locks: pass the cmd value to fcntl_getlk/getlk64
locks: report l_pid as -1 for FL_FILE_PVT locks
locks: make /proc/locks show IS_FILE_PVT locks as type "FLPVT"
locks: rename locks_remove_flock to locks_remove_file
locks: consolidate checks for compatible filp->f_mode values in setlk handlers
locks: fix posix lock range overflow handling
locks: eliminate BUG() call when there's an unexpected lock on file close
locks: add __acquires and __releases annotations to locks_start and locks_stop
locks: remove "inline" qualifier from fl_link manipulation functions
locks: clean up comment typo
locks: close potential race between setlease and open
MAINTAINERS: update entry for fs/locks.c
Pull renameat2 system call from Miklos Szeredi:
"This adds a new syscall, renameat2(), which is the same as renameat()
but with a flags argument.
The purpose of extending rename is to add cross-rename, a symmetric
variant of rename, which exchanges the two files. This allows
interesting things, which were not possible before, for example
atomically replacing a directory tree with a symlink, etc... This
also allows overlayfs and friends to operate on whiteouts atomically.
Andy Lutomirski also suggested a "noreplace" flag, which disables the
overwriting behavior of rename.
These two flags, RENAME_EXCHANGE and RENAME_NOREPLACE are only
implemented for ext4 as an example and for testing"
* 'cross-rename' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ext4: add cross rename support
ext4: rename: split out helper functions
ext4: rename: move EMLINK check up
ext4: rename: create ext4_renament structure for local vars
vfs: add cross-rename
vfs: lock_two_nondirectories: allow directory args
security: add flags to rename hooks
vfs: add RENAME_NOREPLACE flag
vfs: add renameat2 syscall
vfs: rename: use common code for dir and non-dir
vfs: rename: move d_move() up
vfs: add d_is_dir()
Pull media updates from Mauro Carvalho Chehab:
"The main set of series of patches for media subsystem, including:
- document RC sysfs class
- added an API to setup scancode to allow waking up systems using the
Remote Controller
- add API for SDR devices. Drivers are still on staging
- some API improvements for getting EDID data from media
inputs/outputs
- new DVB frontend driver for drx-j (ATSC)
- one driver (it913x/it9137) got removed, in favor of an improvement
on another driver (af9035)
- added a skeleton V4L2 PCI driver at documentation
- added a dual flash driver (lm3646)
- added a new IR driver (img-ir)
- added an IR scancode decoder for the Sharp protocol
- some improvements at the usbtv driver, to allow its core to be
reused.
- added a new SDR driver (rtl2832u_sdr)
- added a new tuner driver (msi001)
- several improvements at em28xx driver to fix PM support, device
removal and to split the V4L2 specific bits into a separate
sub-driver
- one driver got converted to videobuf2 (s2255drv)
- the e4000 tuner driver now follows an improved binding model
- some fixes at V4L2 compat32 code
- several fixes and enhancements at videobuf2 code
- some cleanups at V4L2 API documentation
- usual driver enhancements, new board additions and misc fixups"
[ NOTE! This merge effective drops commit 4329b93b28 ("of: Reduce
indentation in of_graph_get_next_endpoint").
The of_graph_get_next_endpoint() function was moved and renamed by
commit fd9fdb78a9 ("[media] of: move graph helpers from
drivers/media/v4l2-core to drivers/of"). It was originally called
v4l2_of_get_next_endpoint() and lived in the file
drivers/media/v4l2-core/v4l2-of.c.
In that original location, it was then fixed to support empty port
nodes by commit b9db140c1e ("[media] v4l: of: Support empty port
nodes"), and that commit clashes badly with the dropped "Reduce
intendation" commit. I had to choose one or the other, and decided
that the "Support empty port nodes" commit was more important ]
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (426 commits)
[media] em28xx-dvb: fix PCTV 461e tuner I2C binding
Revert "[media] em28xx-dvb: fix PCTV 461e tuner I2C binding"
[media] em28xx: fix PCTV 290e LNA oops
[media] em28xx-dvb: fix PCTV 461e tuner I2C binding
[media] m88ds3103: fix bug on .set_tone()
[media] saa7134: fix WARN_ON during resume
[media] v4l2-dv-timings: add module name, description, license
[media] videodev2.h: add parenthesis around macro arguments
[media] saa6752hs: depends on CRC32
[media] si4713: fix Kconfig dependencies
[media] Sensoray 2255 uses videobuf2
[media] adv7180: free an interrupt on failure paths in init_device()
[media] e4000: make VIDEO_V4L2 dependency optional
[media] af9033: Don't export functions for the hardware filter
[media] af9035: use af9033 PID filters
[media] af9033: implement PID filter
[media] rtl2832_sdr: do not use dynamic stack allocation
[media] e4000: fix 32-bit build error
[media] em28xx-audio: make sure audio is unmuted on open()
[media] DocBook media: v4l2_format_sdr was renamed to v4l2_sdr_format
...
Pull sb_edac patches from Mauro Carvalho Chehab:
"A couple sb_edac driver improvements, cleaning a little bit the amount
of data sent to dmesg, and fixing one error message"
* 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
sb_edac: mark MCE messages as KERN_DEBUG
sb_edac: use "event" instead of "exception" when MC wasnt signaled
Pull input updates from Dmitry Torokhov:
"The first round of updates for the input subsystem.
Just new drivers and existing driver fixes, no core changes except for
the new uinput IOCTL to allow userspace to fetch sysfs name of the
input device that was created"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (43 commits)
Input: edt-ft5x06 - add a missing condition
Input: appletouch - fix jumps when additional fingers are detected
Input: appletouch - implement sensor data smoothing
Input: add driver for SOC button array
Input: pm8xxx-vibrator - add DT match table
Input: pmic8xxx-pwrkey - migrate to DT
Input: pmic8xxx-keypad - migrate to DT
Input: pmic8xxx-keypad - migrate to regmap APIs
Input: pmic8xxx-keypad - migrate to devm_* APIs
Input: pmic8xxx-keypad - fix build by removing gpio configuration
Input: add new driver for ARM CLPS711X keypad
Input: edt-ft5x06 - add support for M09 firmware version
Input: edt-ft5x06 - ignore touchdown events
Input: edt-ft5x06 - adjust delays to conform datasheet
Input: edt-ft5x06 - add DT support
Input: edt-ft5x06 - several cleanups; no functional change
Input: appletouch - dial back fuzz setting
Input: remove obsolete tnetv107x drivers
Input: sirfsoc-onkey - set the capability of reporting KEY_POWER
Input: da9052_onkey - use correct register bit for key status
...
- The biggest change is core API extensions and mlx5 low-level driver
support for handling DIF/DIX-style protection information, and the
addition of PI support to the iSER initiator. Target support will be
arriving shortly through the SCSI target tree.
- A nice simplification to the "umem" memory pinning library now that
we have chained sg lists. Kudos to Yishai Hadas for realizing our
code didn't have to be so crazy.
- Another nice simplification to the sg wrappers used by qib, ipath and
ehca to handle their mapping of memory to adapter.
- The usual batch of fixes to bugs found by static checkers etc. from
intrepid people like Dan Carpenter and Yann Droneaud.
- A large batch of cxgb4, ocrdma, qib driver updates.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=Ww6H
-----END PGP SIGNATURE-----
Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband updates from Roland Dreier:
"Main batch of InfiniBand/RDMA changes for 3.15:
- The biggest change is core API extensions and mlx5 low-level driver
support for handling DIF/DIX-style protection information, and the
addition of PI support to the iSER initiator. Target support will
be arriving shortly through the SCSI target tree.
- A nice simplification to the "umem" memory pinning library now that
we have chained sg lists. Kudos to Yishai Hadas for realizing our
code didn't have to be so crazy.
- Another nice simplification to the sg wrappers used by qib, ipath
and ehca to handle their mapping of memory to adapter.
- The usual batch of fixes to bugs found by static checkers etc.
from intrepid people like Dan Carpenter and Yann Droneaud.
- A large batch of cxgb4, ocrdma, qib driver updates"
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (102 commits)
RDMA/ocrdma: Unregister inet notifier when unloading ocrdma
RDMA/ocrdma: Fix warnings about pointer <-> integer casts
RDMA/ocrdma: Code clean-up
RDMA/ocrdma: Display FW version
RDMA/ocrdma: Query controller information
RDMA/ocrdma: Support non-embedded mailbox commands
RDMA/ocrdma: Handle CQ overrun error
RDMA/ocrdma: Display proper value for max_mw
RDMA/ocrdma: Use non-zero tag in SRQ posting
RDMA/ocrdma: Memory leak fix in ocrdma_dereg_mr()
RDMA/ocrdma: Increment abi version count
RDMA/ocrdma: Update version string
be2net: Add abi version between be2net and ocrdma
RDMA/ocrdma: ABI versioning between ocrdma and be2net
RDMA/ocrdma: Allow DPP QP creation
RDMA/ocrdma: Read ASIC_ID register to select asic_gen
RDMA/ocrdma: SQ and RQ doorbell offset clean up
RDMA/ocrdma: EQ full catastrophe avoidance
RDMA/cxgb4: Disable DSGL use by default
RDMA/cxgb4: rx_data() needs to hold the ep mutex
...
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=mGrO
-----END PGP SIGNATURE-----
Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull second round of hwmon updates from Guenter Roeck:
"Add support for AMD F16 M30h processor to k10temp driver.
This adds one more patch which had secondary dependencies. The branch
point is arbitrary, but I did run a full set of build and qemu tests
on it. While there are some new build failures (6 out of 122 in my
builds), none are due to this commit"
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (k10temp) Add support for AMD F16 M30h processor
- Merged in a branch of irqchip changes from Thomas
Gleixner: we need to have new callbacks from the
irqchip to determine if the GPIO line will be eligible
for IRQs, and this callback must be able to say "no".
After some thinking I got the branch from tglx and
have switched all current users over to use this.
- Based on tglx patches, we have added some generic
irqchip helpers in the gpiolib core. These will
help centralize code when GPIO drivers have simple
chained/cascaded IRQs. Drivers will still define
their irqchip vtables, but the gpiolib core will
take care of irqdomain set-up, mapping from local
offsets to Linux irqs, and reserve resources by
marking the GPIO lines for IRQs.
- Initially the PL061 and Nomadik GPIO/pin control
drivers have been switched over to use the new
gpiochip-to-irqchip infrastructure with more
drivers expected for the next kernel cycle. The
factoring of just two drivers still makes it worth
it so it is already a win.
- A new driver for the Synopsys DesignWare APB GPIO
block.
- Modify the DaVinci GPIO driver to be reusable also
for the new TI Keystone architecture.
- A new driver for the LSI ZEVIO SoCs.
- Delete the obsolte tnetv107x driver.
- Some incremental work on GPIO descriptors: have
gpiod_direction_output() use a logical level,
respecting assertion polarity through ACTIVE_LOW
flags, adding gpiod_direction_output_raw() for the
case where you want to set that very value. Add
gpiochip_get_desc() to fetch a GPIO descriptor from
a specific offset on a certain chip inside driver
code.
- Switch ACPI GPIO code over to using
gpiochip_get_desc() and get rid of gpio_to_desc().
- The ACPI GPIO event handling code has been reworked
after encountering an actual real life implementation.
- Support for ACPI GPIO operation regions.
- Generic GPIO chips can now be assigned labels/names
from platform data.
- We now clamp values returned from GPIO drivers to
the boolean [0,1] range.
- Some improved documentation on how to use the polarity
flag was added.
- The a large slew of incremental driver updates and
non-critical fixes. Some targeted for stable.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=8Qqf
-----END PGP SIGNATURE-----
Merge tag 'gpio-v3.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull bulk of gpio updates from Linus Walleij:
"A pretty big chunk of changes this time, but it has all been on
rotation in linux-next and had some testing. Of course there will be
some amount of fixes on top...
- Merged in a branch of irqchip changes from Thomas Gleixner: we need
to have new callbacks from the irqchip to determine if the GPIO
line will be eligible for IRQs, and this callback must be able to
say "no". After some thinking I got the branch from tglx and have
switched all current users over to use this.
- Based on tglx patches, we have added some generic irqchip helpers
in the gpiolib core. These will help centralize code when GPIO
drivers have simple chained/cascaded IRQs. Drivers will still
define their irqchip vtables, but the gpiolib core will take care
of irqdomain set-up, mapping from local offsets to Linux irqs, and
reserve resources by marking the GPIO lines for IRQs.
- Initially the PL061 and Nomadik GPIO/pin control drivers have been
switched over to use the new gpiochip-to-irqchip infrastructure
with more drivers expected for the next kernel cycle. The
factoring of just two drivers still makes it worth it so it is
already a win.
- A new driver for the Synopsys DesignWare APB GPIO block.
- Modify the DaVinci GPIO driver to be reusable also for the new TI
Keystone architecture.
- A new driver for the LSI ZEVIO SoCs.
- Delete the obsolte tnetv107x driver.
- Some incremental work on GPIO descriptors: have
gpiod_direction_output() use a logical level, respecting assertion
polarity through ACTIVE_LOW flags, adding gpiod_direction_output_raw()
for the case where you want to set that very value. Add
gpiochip_get_desc() to fetch a GPIO descriptor from a specific
offset on a certain chip inside driver code.
- Switch ACPI GPIO code over to using gpiochip_get_desc() and get rid
of gpio_to_desc().
- The ACPI GPIO event handling code has been reworked after
encountering an actual real life implementation.
- Support for ACPI GPIO operation regions.
- Generic GPIO chips can now be assigned labels/names from platform
data.
- We now clamp values returned from GPIO drivers to the boolean [0,1]
range.
- Some improved documentation on how to use the polarity flag was
added.
- a large slew of incremental driver updates and non-critical fixes.
Some targeted for stable"
* tag 'gpio-v3.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (80 commits)
gpio: rcar: Add helper variable dev = &pdev->dev
gpio-lynxpoint: force gpio_get() to return "1" and "0" only
gpio: unmap gpio irqs properly
pch_gpio: set value before enabling output direction
gpio: moxart: Actually set output state in moxart_gpio_direction_output()
gpio: moxart: Avoid forward declaration
gpio: mxs: Allow for recursive enable_irq_wake() call
gpio: samsung: Add missing "break" statement
gpio: twl4030: Remove redundant assignment
gpio: dwapb: correct gpio-cells in binding document
gpio: iop: fix devm_ioremap_resource() return value checking
pinctrl: coh901: convert driver to use gpiolib irqchip
pinctrl: nomadik: convert driver to use gpiolib irqchip
gpio: pl061: convert driver to use gpiolib irqchip
gpio: add IRQ chip helpers in gpiolib
pinctrl: nomadik: factor in platform data container
pinctrl: nomadik: rename secondary to latent
gpio: Driver for SYSCON-based GPIOs
gpio: generic: Use platform_device_id->driver_data field for driver flags
pinctrl: coh901: move irq line locking to resource callbacks
...
Merge first patch-bomb from Andrew Morton:
- Various misc bits
- kmemleak fixes
- small befs, codafs, cifs, efs, freexxfs, hfsplus, minixfs, reiserfs things
- fanotify
- I appear to have become SuperH maintainer
- ocfs2 updates
- direct-io tweaks
- a bit of the MM queue
- printk updates
- MAINTAINERS maintenance
- some backlight things
- lib/ updates
- checkpatch updates
- the rtc queue
- nilfs2 updates
- Small Documentation/ updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (237 commits)
Documentation/SubmittingPatches: remove references to patch-scripts
Documentation/SubmittingPatches: update some dead URLs
Documentation/filesystems/ntfs.txt: remove changelog reference
Documentation/kmemleak.txt: updates
fs/reiserfs/super.c: add __init to init_inodecache
fs/reiserfs: move prototype declaration to header file
fs/hfsplus/attributes.c: add __init to hfsplus_create_attr_tree_cache()
fs/hfsplus/extents.c: fix concurrent acess of alloc_blocks
fs/hfsplus/extents.c: remove unused variable in hfsplus_get_block
nilfs2: update project's web site in nilfs2.txt
nilfs2: update MAINTAINERS file entries fix
nilfs2: verify metadata sizes read from disk
nilfs2: add FITRIM ioctl support for nilfs2
nilfs2: add nilfs_sufile_trim_fs to trim clean segs
nilfs2: implementation of NILFS_IOCTL_SET_SUINFO ioctl
nilfs2: add nilfs_sufile_set_suinfo to update segment usage
nilfs2: add struct nilfs_suinfo_update and flags
nilfs2: update MAINTAINERS file entries
fs/coda/inode.c: add __init to init_inodecache()
BEFS: logging cleanup
...
The link to the tarball for Andrew Morton's patch scripts is dead.
These scripts don't seem to be used for kernel development these days
anyways so just rip out all references to them.
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The links to "The perfect patch" and "NO!!!! No more huge patch
bombs..." have gone stale. Update them to some working locations.
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
File was removed in commit 7c821a179f ("Remove fs/ntfs/ChangeLog").
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Acked-by: Anton Altaparmakov <anton@tuxera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update Documentatin/kmemleak.txt to reflect the following changes:
Commit b69ec42b1b ("Kconfig: clean up the long arch list for the
DEBUG_KMEMLEAK config option") made it so that we can't check supported
architectures by read Kconfig.debug.
Commit 85d3a316c7 ("kmemleak: use rbtree instead of prio tree")
converted kmemleak to use rbtree instead of prio tree.
Signed-off-by: Wang YanQing <udknight@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
init_inodecache is only called by __init init_reiserfs_fs.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Acked-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move prototype declaration to header file reiserfs/reiserfs.h from
reiserfs/super.c because they are used by more than one file.
This eliminates the following warning in reiserfs/bitmap.c:
fs/reiserfs/bitmap.c:647:6: warning: no previous prototype for `show_alloc_options' [-Wmissing-prototypes]
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hfsplus_create_attr_tree_cache is only called by __init init_hfsplus_fs
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Concurrent access to alloc_blocks in hfsplus_inode_info() is protected
by extents_lock mutex. This patch fixes two instances where
alloc_blocks modification was not protected with this lock.
This fixes possible allocation bitmap corruption in race conditions
while extending and truncating files.
[akpm@linux-foundation.org: take extents_lock before taking a copy of ->alloc_blocks]
[akpm@linux-foundation.org: remove now-unused label `out']
Signed-off-by: Sougata Santra <sougata@tuxera.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The variable is defined but not used. Generally it compiles away with
-O2 optimization hence it does not show a warning.
Signed-off-by: Sougata Santra <sougata@tuxera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Project's web site was moved to nilfs.sourceforge.net from
www.nilfs.org. This updates the site information in
Documentation/filesystems/nilfs2.txt with the new location.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Also, web-page entry is updated according to relocation of project's web
site.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add code to check sizes of on-disk data of metadata files such as inode
size, segment usage size, DAT entry size, and checkpoint size. Although
these sizes are read from disk, the current implementation doesn't check
them.
If these sizes are not sane on disk, it can cause out-of-range access to
metadata or memory access overrun on metadata block buffers due to
overflow in sundry calculations.
Both lower limit and upper limit of metadata sizes are verified to
prevent these issues.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Andreas Rohner <andreas.rohner@gmx.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add support for the FITRIM ioctl, which enables user space tools to
issue TRIM/DISCARD requests to the underlying device. Every clean
segment within the specified range will be discarded.
Signed-off-by: Andreas Rohner <andreas.rohner@gmx.net>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add nilfs_sufile_trim_fs(), which takes an fstrim_range structure and
calls blkdev_issue_discard for every clean segment in the specified
range. The range is truncated to file system block boundaries.
Signed-off-by: Andreas Rohner <andreas.rohner@gmx.net>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With this ioctl the segment usage entries in the SUFILE can be updated
from userspace.
This is useful, because it allows the userspace GC to modify and update
segment usage entries for specific segments, which enables it to avoid
unnecessary write operations.
If a segment needs to be cleaned, but there is no or very little
reclaimable space in it, the cleaning operation basically degrades to a
useless moving operation. In the end the only thing that changes is the
location of the data and a timestamp in the segment usage information.
With this ioctl the GC can skip the cleaning and update the segment
usage entries directly instead.
This is basically a shortcut to cleaning the segment. It is still
necessary to read the segment summary information, but the writing of
the live blocks can be skipped if it's not worth it.
[konishi.ryusuke@lab.ntt.co.jp: add description of NILFS_IOCTL_SET_SUINFO ioctl]
Signed-off-by: Andreas Rohner <andreas.rohner@gmx.net>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Introduce nilfs_sufile_set_suinfo(), which expects an array of
nilfs_suinfo_update structures and updates the segment usage information
accordingly.
This is basically a helper function for the newly introduced
NILFS_IOCTL_SET_SUINFO ioctl.
[konishi.ryusuke@lab.ntt.co.jp: use put_bh() instead of brelse() because we know bh != NULL]
Signed-off-by: Andreas Rohner <andreas.rohner@gmx.net>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add the nilfs_suinfo_update structure, which contains the information
needed to update one segment usage entry. The flags specify, which
fields need to be updated.
Signed-off-by: Andreas Rohner <andreas.rohner@gmx.net>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
init_inodecache is only called by __init init_coda
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Summary:
- all printk(KERN_foo converted to pr_foo()
- add pr_fmt and remove redundant prefixes
- convert befs_() to va_format (based on patch by Joe Perches)
- remove non standard %Lu
- use __func__ for all debugging
[akpm@linux-foundation.org: fix printk warnings, reported by Fengguang]
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Joe Perches <joe@perches.com>
Cc: Fengguang Wu <fengguang.wu@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
init_inodecache is only called by __init init_befs_fs.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use kzalloc for clean fs_info allocation like other filesystems.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
init_inodecache is only called by __init init_minix_fs.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Lukas Czerner