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970e4936d7
linux/fs/ocfs2
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Joel Becker 970e4936d7 ocfs2: Validate metadata only when it's read from disk. 
Add an optional validation hook to ocfs2_read_blocks().  Now the
validation function is only called when a block was actually read off of
disk.  It is not called when the buffer was in cache.

We add a buffer state bit BH_NeedsValidate to flag these buffers.  It
must always be one higher than the last JBD2 buffer state bit.

The dinode, dirblock, extent_block, and xattr_block validators are
lifted to this scheme directly.  The group_descriptor validator needs to
be split into two pieces.  The first part only needs the gd buffer and
is passed to ocfs2_read_block().  The second part requires the dinode as
well, and is called every time.  It's only 3 compares, so it's tiny.
This also allows us to clean up the non-fatal gd check used by resize.c.
It now has no magic argument.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2009-01-05 08:36:53 -08:00
..
cluster fs: replace NIPQUAD() 2008-10-31 00:56:28 -07:00
dlm Merge branch 'master' into next 2008-12-04 17:16:36 +11:00
acl.c ocfs2: add ocfs2_init_acl in mknod 2009-01-05 08:34:20 -08:00
acl.h ocfs2: add ocfs2_init_acl in mknod 2009-01-05 08:34:20 -08:00
alloc.c ocfs2: Validate metadata only when it's read from disk. 2009-01-05 08:36:53 -08:00
alloc.h ocfs2: Wrap extent block reads in a dedicated function. 2009-01-05 08:36:53 -08:00
aops.c ocfs2: Wrap inode block reads in a dedicated function. 2009-01-05 08:36:52 -08:00
aops.h ocfs2: convert to new aops 2007-10-16 09:42:58 -07:00
buffer_head_io.c ocfs2: Validate metadata only when it's read from disk. 2009-01-05 08:36:53 -08:00
buffer_head_io.h ocfs2: Validate metadata only when it's read from disk. 2009-01-05 08:36:53 -08:00
dcache.c ocfs2: Remove mount/unmount votes 2008-01-25 14:45:34 -08:00
dcache.h
dir.c ocfs2: Validate metadata only when it's read from disk. 2009-01-05 08:36:53 -08:00
dir.h ocfs2: Rename cleanups 2007-10-12 11:54:38 -07:00
dlmglue.c ocfs2: Wrap inode block reads in a dedicated function. 2009-01-05 08:36:52 -08:00
dlmglue.h ocfs2: Break out stackglue into modules. 2008-04-18 08:56:05 -07:00
export.c [PATCH] switch all filesystems over to d_obtain_alias 2008-10-23 05:13:01 -04:00
export.h exportfs: make struct export_operations const 2007-10-22 08:13:21 -07:00
extent_map.c ocfs2: Wrap extent block reads in a dedicated function. 2009-01-05 08:36:53 -08:00
extent_map.h ocfs2: Add extent tree operation for xattr value btrees 2008-10-13 16:57:01 -07:00
file.c ocfs2: Wrap inode block reads in a dedicated function. 2009-01-05 08:36:52 -08:00
file.h ocfs2: Make high level btree extend code generic 2008-10-13 13:57:59 -07:00
heartbeat.c ocfs2: Move o2hb functionality into the stack glue. 2008-04-18 08:56:04 -07:00
heartbeat.h ocfs2: Move o2hb functionality into the stack glue. 2008-04-18 08:56:04 -07:00
inode.c ocfs2: Validate metadata only when it's read from disk. 2009-01-05 08:36:53 -08:00
inode.h ocfs2: Wrap inode block reads in a dedicated function. 2009-01-05 08:36:52 -08:00
ioctl.c ocfs2: Don't check for NULL before brelse() 2008-10-13 17:02:44 -07:00
ioctl.h ocfs2: Convert ocfs2 over to unlocked_ioctl 2008-04-18 08:56:11 -07:00
journal.c ocfs2: Morph the haphazard OCFS2_IS_VALID_DINODE() checks. 2009-01-05 08:36:52 -08:00
journal.h ocfs2: Switch over to JBD2. 2008-10-13 17:02:43 -07:00
localalloc.c ocfs2: Wrap inode block reads in a dedicated function. 2009-01-05 08:36:52 -08:00
localalloc.h ocfs2: throttle back local alloc when low on disk space 2008-10-13 13:57:57 -07:00
locks.c ocfs2: POSIX file locks support 2008-10-13 13:57:57 -07:00
locks.h ocfs2: POSIX file locks support 2008-10-13 13:57:57 -07:00
Makefile ocfs2: add POSIX ACL API 2009-01-05 08:34:20 -08:00
mmap.c ocfs2: return 0 in page_mkwrite to let VFS retry. 2008-11-10 09:51:47 -08:00
mmap.h
namei.c ocfs2: Wrap inode block reads in a dedicated function. 2009-01-05 08:36:52 -08:00
namei.h ocfs2: Move directory manipulation code into dir.c 2007-10-12 11:54:36 -07:00
ocfs1_fs_compat.h fs/: Spelling fixes 2008-02-03 17:33:42 +02:00
ocfs2_fs.h ocfs2: Add JBD2 compat feature bit. 2008-12-16 18:26:16 -08:00
ocfs2_jbd_compat.h ocfs2: Switch over to JBD2. 2008-10-13 17:02:43 -07:00
ocfs2_lockid.h ocfs2: Change mlog_bug_on to BUG_ON in ocfs2_lockid.h 2008-04-18 08:56:07 -07:00
ocfs2_lockingver.h ocfs2: Negotiate locking protocol versions. 2008-02-06 16:11:29 -08:00
ocfs2.h ocfs2: Wrap extent block reads in a dedicated function. 2009-01-05 08:36:53 -08:00
resize.c ocfs2: Validate metadata only when it's read from disk. 2009-01-05 08:36:53 -08:00
resize.h [PATCH 2/2] ocfs2: Implement group add for online resize 2008-01-25 15:04:24 -08:00
slot_map.c ocfs2: Validate metadata only when it's read from disk. 2009-01-05 08:36:53 -08:00
slot_map.h ocfs2: De-magic the in-memory slot map. 2008-04-18 08:56:03 -07:00
stack_o2cb.c ocfs2: Remove ->hangup() from stack glue operations. 2008-06-16 10:46:52 -07:00
stack_user.c ocfs2: initialize stack_user lvbptr 2008-12-01 14:46:39 -08:00
stackglue.c ocfs2: Remove pointless !! 2008-10-13 17:02:44 -07:00
stackglue.h ocfs2: POSIX file locks support 2008-10-13 13:57:57 -07:00
suballoc.c ocfs2: Validate metadata only when it's read from disk. 2009-01-05 08:36:53 -08:00
suballoc.h ocfs2: Validate metadata only when it's read from disk. 2009-01-05 08:36:53 -08:00
super.c ocfs2: add mount option and Kconfig option for acl 2009-01-05 08:36:52 -08:00
super.h ocfs2: use s_maxbytes directly in ocfs2_change_file_space() 2007-08-09 17:25:07 -07:00
symlink.c ocfs2: Wrap inode block reads in a dedicated function. 2009-01-05 08:36:52 -08:00
symlink.h [PATCH] mark struct inode_operations const 2 2007-02-12 09:48:46 -08:00
sysfile.c ocfs2: Silence false lockdep warnings 2008-01-25 15:05:44 -08:00
sysfile.h
uptodate.c ocfs2: use smaller counters in ocfs2_remove_xattr_clusters_from_cache 2008-10-13 17:02:44 -07:00
uptodate.h ocfs2: Add helper function in uptodate.c for removing xattr clusters 2008-10-13 13:57:59 -07:00
ver.c ocfs2: bump version number 2008-01-25 15:05:46 -08:00
ver.h
xattr.c ocfs2: Validate metadata only when it's read from disk. 2009-01-05 08:36:53 -08:00
xattr.h ocfs2: add ocfs2_init_acl in mknod 2009-01-05 08:34:20 -08:00