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linux-stable/fs/xfs
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Dave Chinner 0cb97766f2 xfs: Add read-only support for dirent filetype field 
Add support for the file type field in directory entries so that
readdir can return the type of the inode the dirent points to to
userspace without first having to read the inode off disk.

The encoding of the type field is a single byte that is added to the
end of the directory entry name length. For all intents and
purposes, it appends a "hidden" byte to the name field which
contains the type information. As the directory entry is already of
dynamic size, helpers are already required to access and decode the
direct entry structures.

Hence the relevent extraction and iteration helpers are updated to
understand the hidden byte.  Helpers for reading and writing the
filetype field from the directory entries are also added. Only the
read helpers are used by this patch.  It also adds all the code
necessary to read the type information out of the dirents on disk.

Further we add the superblock feature bit and helpers to indicate
that we understand the on-disk format change. This is not a
compatible change - existing kernels cannot read the new format
successfully - so an incompatible feature flag is added. We don't
yet allow filesystems to mount with this flag yet - that will be
added once write support is added.

Finally, the code to take the type from the VFS, convert it to an
XFS on-disk type and put it into the xfs_name structures passed
around is added, but the directory code does not use this field yet.
That will be in the next patch.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
2013-08-22 08:40:24 -05:00
..
Kconfig xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
kmem.c xfs: switch to proper __bitwise type for KM_... flags 2012-05-29 23:28:32 -04:00
kmem.h xfs: switch to proper __bitwise type for KM_... flags 2012-05-29 23:28:32 -04:00
Makefile xfs: Add xfs_log_rlimit.c 2013-08-12 17:49:38 -05:00
mrlock.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
time.h
uuid.c
uuid.h xfs: add CRC infrastructure 2012-11-19 20:11:24 -06:00
xfs.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_acl.c xfs: convert kuid_t to/from uid_t in ACLs 2013-08-15 14:18:31 -05:00
xfs_acl.h xfs: increase number of ACL entries for V5 superblocks 2013-06-06 10:52:15 -05:00
xfs_ag.h xfs: make struct xfs_perag kernel only 2013-08-12 17:44:36 -05:00
xfs_alloc.c xfs: kill __KERNEL__ check for debug code in allocation code 2013-08-12 16:57:51 -05:00
xfs_alloc.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_alloc_btree.c xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_alloc_btree.h xfs: add support for large btree blocks 2013-04-21 14:53:46 -05:00
xfs_aops.c xfs: rename bio_add_buffer() to xfs_bio_add_buffer() 2013-08-20 15:35:00 -05:00
xfs_aops.h Prefix IO_XX flags with XFS_IO_XX to avoid namespace colision. 2012-07-22 11:00:55 -05:00
xfs_attr.c xfs: avoid double-free in xfs_attr_node_addname 2013-08-13 15:48:01 -05:00
xfs_attr.h xfs: kill xfs_vnodeops.[ch] 2013-08-12 16:53:39 -05:00
xfs_attr_inactive.c xfs: refactor xfs_trans_reserve() interface 2013-08-12 17:47:34 -05:00
xfs_attr_leaf.c xfs: minor cleanups 2013-08-12 16:46:08 -05:00
xfs_attr_leaf.h xfs: sync minor header differences needed by userspace. 2013-08-12 16:35:41 -05:00
xfs_attr_list.c xfs: split out attribute listing code into separate file 2013-08-12 16:41:29 -05:00
xfs_attr_remote.c xfs: fix issues that cause userspace warnings 2013-08-12 16:52:54 -05:00
xfs_attr_remote.h xfs: rework remote attr CRCs 2013-05-30 17:26:31 -05:00
xfs_attr_sf.h
xfs_bit.c
xfs_bit.h
xfs_bmap.c xfs: fix the comment of xfs_bmap_last_before() 2013-08-20 15:36:28 -05:00
xfs_bmap.h xfs: remove __KERNEL__ from debug code 2013-08-12 16:58:37 -05:00
xfs_bmap_btree.c xfs: minor cleanups 2013-08-12 16:46:08 -05:00
xfs_bmap_btree.h xfs: check on-disk (not incore) btree root size in dfrag.c 2013-06-20 13:26:09 -05:00
xfs_bmap_util.c xfs: fix the comment of xfs_bmap_punch_delalloc_range() 2013-08-20 15:40:16 -05:00
xfs_bmap_util.h xfs: consolidate extent swap code 2013-08-12 16:56:06 -05:00
xfs_btree.c xfs: fix the comment of xfs_btree_get_iroot() 2013-08-20 15:17:35 -05:00
xfs_btree.h xfs: sync minor header differences needed by userspace. 2013-08-12 16:35:41 -05:00
xfs_buf.c xfs: fix the comment of xfs_setsize_buftarg_early() 2013-08-20 15:40:39 -05:00
xfs_buf.h xfs: use b_maps[] for discontiguous buffers 2013-01-16 16:07:11 -06:00
xfs_buf_item.c xfs: use reference counts to free clean buffer items 2013-08-15 16:42:29 -05:00
xfs_buf_item.h xfs: split out buf log item format definitions 2013-08-12 16:06:37 -05:00
xfs_cksum.h xfs: add CRC infrastructure 2012-11-19 20:11:24 -06:00
xfs_da_btree.c xfs: fix issues that cause userspace warnings 2013-08-12 16:52:54 -05:00
xfs_da_btree.h xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_dinode.h xfs: di_flushiter considered harmful 2013-07-24 12:15:23 -05:00
xfs_dir2.c xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_dir2.h xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_dir2_block.c xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_dir2_data.c xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_dir2_format.h xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_dir2_leaf.c xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_dir2_node.c xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_dir2_priv.h xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_dir2_readdir.c xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_dir2_sf.c xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_discard.c xfs: split out transaction reservation code 2013-08-12 16:36:16 -05:00
xfs_discard.h
xfs_dquot.c xfs: refactor xfs_trans_reserve() interface 2013-08-12 17:47:34 -05:00
xfs_dquot.h xfs: Add pquota fields where gquota is used. 2013-07-11 10:35:32 -05:00
xfs_dquot_item.c xfs: return log item size in IOP_SIZE 2013-08-13 16:10:21 -05:00
xfs_dquot_item.h
xfs_error.c xfs: consolidate xfs_utils.c 2013-08-12 16:55:17 -05:00
xfs_error.h
xfs_export.c xfs: kill xfs_vnodeops.[ch] 2013-08-12 16:53:39 -05:00
xfs_export.h
xfs_extent_busy.c xfs: fix the comment of xfs_extent_busy_update_extent() 2013-08-20 15:41:08 -05:00
xfs_extent_busy.h xfs: make xfs_extent_busy_trim not static 2012-05-14 16:21:04 -05:00
xfs_extfree_item.c xfs: return log item size in IOP_SIZE 2013-08-13 16:10:21 -05:00
xfs_extfree_item.h xfs: split out EFI/EFD log item format definition 2013-08-12 16:07:13 -05:00
xfs_file.c xfs: kill xfs_vnodeops.[ch] 2013-08-12 16:53:39 -05:00
xfs_filestream.c xfs: consolidate xfs_utils.c 2013-08-12 16:55:17 -05:00
xfs_filestream.h xfs: xfs_filestreams.h doesn't need __KERNEL__ 2013-08-12 17:00:11 -05:00
xfs_format.h xfs: split out the remote symlink handling 2013-08-12 16:43:38 -05:00
xfs_fs.h xfs: create internal eofblocks structure with kuid_t types 2013-08-15 14:24:10 -05:00
xfs_fsops.c xfs: refactor xfs_trans_reserve() interface 2013-08-12 17:47:34 -05:00
xfs_fsops.h
xfs_globals.c xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_ialloc.c xfs: fix the comment of xfs_ialloc_ag_select() 2013-08-20 15:42:41 -05:00
xfs_ialloc.h xfs: Inode create item recovery 2013-06-27 14:26:21 -05:00
xfs_ialloc_btree.c xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_ialloc_btree.h xfs: add support for large btree blocks 2013-04-21 14:53:46 -05:00
xfs_icache.c xfs: create internal eofblocks structure with kuid_t types 2013-08-15 14:24:10 -05:00
xfs_icache.h xfs: create internal eofblocks structure with kuid_t types 2013-08-15 14:24:10 -05:00
xfs_icreate_item.c xfs: return log item size in IOP_SIZE 2013-08-13 16:10:21 -05:00
xfs_icreate_item.h xfs: separate icreate log format definitions from xfs_icreate_item.h 2013-08-12 16:10:35 -05:00
xfs_inode.c xfs: fix the comment of xfs_ifree_cluster() 2013-08-20 15:44:36 -05:00
xfs_inode.h xfs: consolidate xfs_utils.c 2013-08-12 16:55:17 -05:00
xfs_inode_buf.c xfs: introduce xfs_inode_buf.c for inode buffer operations 2013-08-12 16:39:05 -05:00
xfs_inode_buf.h xfs: kill xfs_vnodeops.[ch] 2013-08-12 16:53:39 -05:00
xfs_inode_fork.c xfs: fix the comment of xfs_iroot_realloc() 2013-08-20 15:17:11 -05:00
xfs_inode_fork.h xfs: move inode fork definitions to a new header file 2013-08-12 16:37:32 -05:00
xfs_inode_item.c xfs: return log item size in IOP_SIZE 2013-08-13 16:10:21 -05:00
xfs_inode_item.h xfs: split out inode log item format definition 2013-08-12 16:05:19 -05:00
xfs_inum.h xfs: move xfsagino_t to xfs_types.h 2012-05-14 16:20:54 -05:00
xfs_ioctl.c xfs: add capability check to free eofblocks ioctl 2013-08-15 14:25:01 -05:00
xfs_ioctl.h xfs: consolidate extent swap code 2013-08-12 16:56:06 -05:00
xfs_ioctl32.c xfs: consolidate extent swap code 2013-08-12 16:56:06 -05:00
xfs_ioctl32.h
xfs_iomap.c xfs: refactor xfs_trans_reserve() interface 2013-08-12 17:47:34 -05:00
xfs_iomap.h
xfs_iops.c xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_iops.h xfs: kill xfs_vnodeops.[ch] 2013-08-12 16:53:39 -05:00
xfs_itable.c xfs: clean up unused codes at xfs_bulkstat() 2013-07-09 15:36:21 -05:00
xfs_itable.h
xfs_linux.h xfs: remove two unused macro definitions in xfs_linux.h 2013-08-20 15:30:23 -05:00
xfs_log.c xfs: fix the comment of xfs_log_unmount_write() 2013-08-20 15:47:18 -05:00
xfs_log.h xfs: Reduce allocations during CIL insertion 2013-08-13 16:12:30 -05:00
xfs_log_cil.c xfs: split the CIL lock 2013-08-13 16:21:21 -05:00
xfs_log_format.h xfs: Add xfs_log_rlimit.c 2013-08-12 17:49:38 -05:00
xfs_log_priv.h xfs: split the CIL lock 2013-08-13 16:21:21 -05:00
xfs_log_recover.c xfs: fix the comment of xlog_recover_do_dquot_buffer() 2013-08-20 15:49:06 -05:00
xfs_log_recover.h
xfs_log_rlimit.c xfs: call roundup_64() to calculate the min_logblks 2013-08-13 14:19:11 -05:00
xfs_message.c xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_message.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_mount.c xfs: fix the comment of xfs_mountfs() 2013-08-20 15:53:07 -05:00
xfs_mount.h xfs: Introduce a new structure to hold transaction reservation items 2013-08-12 17:45:49 -05:00
xfs_mru_cache.c
xfs_mru_cache.h
xfs_qm.c xfs: convert kuid_t to/from uid_t for internal structures 2013-08-15 14:22:40 -05:00
xfs_qm.h xfs: Add support for the Q_XGETQSTATV 2013-08-20 17:00:38 -05:00
xfs_qm_bhv.c xfs: separate dquot on disk format definitions out of xfs_quota.h 2013-08-12 16:09:52 -05:00
xfs_qm_syscalls.c xfs: Add support for the Q_XGETQSTATV 2013-08-20 17:00:38 -05:00
xfs_quota.h xfs: convert kuid_t to/from uid_t for internal structures 2013-08-15 14:22:40 -05:00
xfs_quota_defs.h xfs: introduce xfs_quota_defs.h 2013-08-12 16:20:18 -05:00
xfs_quota_priv.h xfs: use per-filesystem radix trees for dquot lookup 2012-03-14 11:09:06 -05:00
xfs_quotaops.c xfs: Add support for the Q_XGETQSTATV 2013-08-20 17:00:38 -05:00
xfs_rtalloc.c xfs: refactor xfs_trans_reserve() interface 2013-08-12 17:47:34 -05:00
xfs_rtalloc.h xfs: introduce xfs_rtalloc_defs.h 2013-08-12 16:13:10 -05:00
xfs_sb.c xfs: fix the comment of xfs_sb_quiet_read_verify() 2013-08-20 15:51:49 -05:00
xfs_sb.h xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_stats.c xfs: use common code for quota statistics 2012-03-14 11:09:06 -05:00
xfs_stats.h xfs: use common code for quota statistics 2012-03-14 11:09:06 -05:00
xfs_super.c xfs: consolidate xfs_utils.c 2013-08-12 16:55:17 -05:00
xfs_super.h xfs: xfs_sync_data is redundant. 2012-10-17 12:01:25 -05:00
xfs_symlink.c xfs: convert kuid_t to/from uid_t for internal structures 2013-08-15 14:22:40 -05:00
xfs_symlink.h xfs: split out the remote symlink handling 2013-08-12 16:43:38 -05:00
xfs_symlink_remote.c xfs: make struct xfs_perag kernel only 2013-08-12 17:44:36 -05:00
xfs_sysctl.c xfs: Convert use of typedef ctl_table to struct ctl_table 2013-06-17 17:42:25 -05:00
xfs_sysctl.h xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_trace.c xfs: separate dquot on disk format definitions out of xfs_quota.h 2013-08-12 16:09:52 -05:00
xfs_trace.h xfs: update for 3.11-rc1 2013-07-09 12:29:12 -07:00
xfs_trans.c xfs: refactor xfs_trans_reserve() interface 2013-08-12 17:47:34 -05:00
xfs_trans.h xfs: avoid CIL allocation during insert 2013-08-13 16:19:03 -05:00
xfs_trans_ail.c xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_trans_buf.c xfs: Introduce an ordered buffer item 2013-06-27 13:33:11 -05:00
xfs_trans_dquot.c xfs: separate dquot on disk format definitions out of xfs_quota.h 2013-08-12 16:09:52 -05:00
xfs_trans_extfree.c xfs: move xfsagino_t to xfs_types.h 2012-05-14 16:20:54 -05:00
xfs_trans_inode.c xfs: implement inode change count 2013-06-28 13:00:05 -05:00
xfs_trans_priv.h xfs: sync minor header differences needed by userspace. 2013-08-12 16:35:41 -05:00
xfs_trans_resv.c xfs: refactor xfs_trans_reserve() interface 2013-08-12 17:47:34 -05:00
xfs_trans_resv.h xfs: Get rid of all XFS_XXX_LOG_RES() macro 2013-08-12 17:48:08 -05:00
xfs_trans_space.h
xfs_types.h xfs: Add read-only support for dirent filetype field 2013-08-22 08:40:24 -05:00
xfs_vnode.h xfs: remove remaining scraps of struct xfs_iomap 2012-03-15 13:40:16 -05:00
xfs_xattr.c xfs: kill xfs_vnodeops.[ch] 2013-08-12 16:53:39 -05:00