Steven Whitehouse 380f7c65a7 GFS2: Resolve inode eviction and ail list interaction bug ... This patch contains a few misc fixes which resolve a recently reported issue. This patch has been a real team effort and has received a lot of testing. The first issue is that the ail lock needs to be held over a few more operations. The lock thats added into gfs2_releasepage() may possibly be a candidate for replacing with RCU at some future point, but at this stage we've gone for the obvious fix. The second issue is that gfs2_write_inode() can end up calling a glock recursively when called from gfs2_evict_inode() via the syncing code, so it needs a guard added. The third issue is that we either need to not truncate the metadata pages of inodes which have zero link count, but which we cannot deallocate due to them still being in use by other nodes, or we need to ensure that those pages have all made it through the journal and ail lists first. This patch takes the former approach, but the latter has also been tested and there is nothing to choose between them performance-wise. So again, we could revise that decision in the future. Also, the inode eviction process is now better documented. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Tested-by: Bob Peterson <rpeterso@redhat.com> Tested-by: Abhijith Das <adas@redhat.com> Reported-by: Barry J. Marson <bmarson@redhat.com> Reported-by: David Teigland <teigland@redhat.com>		2011-07-14 08:59:44 +01:00
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9p	9p: remove unnecessary dentry_unhash on rmdir, dir rename	2011-05-28 01:02:53 -04:00
adfs	Fix common misspellings	2011-03-31 11:26:23 -03:00
affs	affs: remove unnecessary dentry_unhash on rmdir, dir rename	2011-05-28 01:02:53 -04:00
afs	AFS: Use i_generation not i_version for the vnode uniquifier	2011-06-16 11:44:48 -04:00
autofs4	autofs4: bogus dentry_unhash() added in ->unlink()	2011-05-30 01:50:53 -04:00
befs	Fix common misspellings	2011-03-31 11:26:23 -03:00
bfs	bfs: remove unnecessary dentry_unhash on dir rename	2011-05-28 01:02:50 -04:00
btrfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2011-07-08 23:25:45 -07:00
cachefiles	Fix common misspellings	2011-03-31 11:26:23 -03:00
ceph	ceph: fix sync and dio writes across stripe boundaries	2011-06-13 16:26:22 -07:00
cifs	Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6	2011-07-11 12:48:24 -07:00
coda	coda_ioctl_permission() is safe in RCU mode	2011-06-20 10:44:19 -04:00
configfs	configfs: remove unnecessary dentry_unhash on rmdir, dir rename	2011-05-28 01:02:54 -04:00
cramfs
debugfs	debugfs: move to new strtobool	2011-05-19 16:55:28 +09:30
devpts	fs/devpts/inode.c: correctly check d_alloc_name() return code in devpts_pty_new()	2011-03-22 17:44:17 -07:00
dlm	Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6	2011-05-26 13:19:00 -07:00
ecryptfs	eCryptfs: Remove ecryptfs_header_cache_2	2011-05-29 14:24:25 -05:00
efs	block: remove per-queue plugging	2011-03-10 08:52:07 +01:00
exofs	exofs: remove unnecessary dentry_unhash on rmdir/rename_dir	2011-05-26 07:26:57 -04:00
exportfs	vfs: Add open by file handle support	2011-03-15 02:21:44 -04:00
ext2	ext2: remove unnecessary dentry_unhash on rmdir/rename_dir	2011-05-26 07:26:56 -04:00
ext3	fs: pass exact type of data dirties to ->dirty_inode	2011-05-27 07:04:40 -04:00
ext4	ext4: fixed tracepoints cleanup	2011-06-06 09:51:52 -04:00
fat	fat: Fix corrupt inode flags when remove ATTR_SYS flag	2011-05-31 19:42:24 +09:00
freevxfs	treewide: fix a few typos in comments	2011-05-10 10:16:21 +02:00
fscache	FS-Cache: Add a helper to bulk uncache pages on an inode	2011-07-07 13:21:56 -07:00
fuse	more conservative S_NOSEC handling	2011-06-03 18:24:58 -04:00
gfs2	GFS2: Resolve inode eviction and ail list interaction bug	2011-07-14 08:59:44 +01:00
hfs	hfs: remove unnecessary dentry_unhash on rmdir, dir rename	2011-05-28 01:02:52 -04:00
hfsplus	hfsplus: Fix double iput of the same inode in hfsplus_fill_super()	2011-06-30 13:38:39 +02:00
hostfs	hostfs: remove unnecessary dentry_unhash on rmdir, dir rename	2011-05-28 01:02:52 -04:00
hpfs	hpfs: remove unnecessary dentry_unhash on rmdir, dir rename	2011-05-28 01:02:54 -04:00
hppfs
hugetlbfs	mm: don't access vm_flags as 'int'	2011-05-26 09:20:31 -07:00
isofs	isofs: fix bh leak in isofs_fill_super() error case	2011-06-18 07:25:42 -07:00
jbd	jbd: Fix comment to match the code in journal_start()	2011-05-24 00:27:53 +02:00
jbd2	jbd2: Fix oops in jbd2_journal_remove_journal_head()	2011-06-13 15:38:22 -04:00
jffs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-05-28 13:03:41 -07:00
jfs	jfs: agstart field must be 64 bits	2011-06-20 17:53:24 -05:00
lockd	NLM: Don't hang forever on NLM unlock requests	2011-06-15 11:24:27 -04:00
logfs	logfs doesn't need ->permission() at all	2011-06-20 10:44:26 -04:00
minix	minix: remove unnecessary dentry_unhash on rmdir, dir rename	2011-05-28 01:02:54 -04:00
ncpfs	ncpfs: fix rename over directory with dangling references	2011-05-28 01:02:53 -04:00
nfs	FS-Cache: Add a helper to bulk uncache pages on an inode	2011-07-07 13:21:56 -07:00
nfs_common	Fix common misspellings	2011-03-31 11:26:23 -03:00
nfsd	nfsd4: fix break_lease flags on nfsd open	2011-06-20 10:38:01 -04:00
nilfs2	nilfs2_permission() doesn't need to bail out in RCU mode	2011-06-20 10:44:33 -04:00
nls
notify	Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6	2011-04-07 11:14:49 -07:00
ntfs	Fix common misspellings	2011-03-31 11:26:23 -03:00
ocfs2	more conservative S_NOSEC handling	2011-06-03 18:24:58 -04:00
omfs	Remove unneeded version.h includes from fs/	2011-06-24 08:34:22 -07:00
openpromfs
partitions	Revert "block: Remove extra discard_alignment from hd_struct."	2011-05-30 07:42:51 +02:00
proc	proc: restrict access to /proc/PID/io	2011-06-28 09:39:11 -07:00
pstore	pstore: fix pstore filesystem mount/remount issue	2011-05-16 11:05:00 -07:00
qnx4	block: remove per-queue plugging	2011-03-10 08:52:07 +01:00
quota	vmscan: change shrinker API by passing shrink_control struct	2011-05-25 08:39:26 -07:00
ramfs	ramfs: fix memleak on no-mmu arch	2011-04-14 16:06:56 -07:00
reiserfs	reiserfs_permission() doesn't need to bail out in RCU mode	2011-06-20 10:45:21 -04:00
romfs	romfs: fix romfs_get_unmapped_area() argument check	2011-06-27 18:00:12 -07:00
squashfs	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus	2011-05-29 11:19:45 -07:00
sysfs	Delay struct net freeing while there's a sysfs instance refering to it	2011-06-12 17:45:41 -04:00
sysv	sysv: remove unnecessary dentry_unhash from rmdir, dir rename	2011-05-28 01:02:50 -04:00
ubifs	ubifs: dereferencing an ERR_PTR in ubifs_mount()	2011-06-20 10:42:34 -04:00
udf	udf: remove unnecessary dentry_unhash from rmdir, dir rename	2011-05-28 01:02:52 -04:00
ufs	ufs: remove unnecessary dentry_unhash from rmdir, dir rename	2011-05-28 01:02:51 -04:00
xfs	xfs: unpin stale inodes directly in IOP_COMMITTED	2011-07-06 15:44:40 -05:00
aio.c	Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block	2011-03-24 10:16:26 -07:00
anon_inodes.c
attr.c	Cache xattr security drop check for write v2	2011-05-28 12:02:09 -04:00
bad_inode.c	bad_inode_permission() is safe from RCU mode	2011-06-20 10:44:00 -04:00
binfmt_aout.c
binfmt_elf_fdpic.c	FDPIC: Fix memory leak	2011-07-06 12:15:16 -07:00
binfmt_elf.c	brk: COMPAT_BRK: fix detection of randomized brk	2011-04-14 16:06:55 -07:00
binfmt_em86.c
binfmt_flat.c	CRED: Fix load_flat_shared_library() to initialise bprm correctly	2011-05-03 10:10:51 +10:00
binfmt_misc.c
binfmt_script.c
binfmt_som.c
bio-integrity.c	block: Require subsystems to explicitly allocate bio_set integrity mempool	2011-03-17 11:11:05 +01:00
bio.c	block: improve the bio_add_page() and bio_add_pc_page() descriptions	2011-05-28 14:44:46 +02:00
block_dev.c	block: use the passed in @bdev when claiming if partno is zero	2011-06-13 12:45:48 +02:00
buffer.c	vfs: Fix data corruption after failed write in __block_write_begin()	2011-06-16 11:44:46 -04:00
char_dev.c
compat_binfmt_elf.c
compat_ioctl.c
compat.c	exec: unify do_execve/compat_do_execve code	2011-04-09 15:53:56 +02:00
dcache.c	vmscan: change shrinker API by passing shrink_control struct	2011-05-25 08:39:26 -07:00
dcookies.c	oprofile, dcookies: Fix possible circular locking dependency	2011-05-31 16:33:35 +02:00
direct-io.c	Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block	2011-03-24 10:16:26 -07:00
drop_caches.c	vmscan: change shrinker API by passing shrink_control struct	2011-05-25 08:39:26 -07:00
eventfd.c
eventpoll.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
exec.c	KEYS/DNS: Fix ____call_usermodehelper() to not lose the session keyring	2011-06-17 09:40:48 -07:00
fcntl.c	userns: rename is_owner_or_cap to inode_owner_or_capable	2011-03-23 19:47:13 -07:00
fhandle.c	fs/fhandle.c: add <linux/personality.h> for ia64	2011-04-14 16:06:56 -07:00
fifo.c	Filesystem: fifo: Fixed coding style issue.	2011-03-21 00:16:09 -04:00
file_table.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-03-16 13:26:17 -07:00
file.c	vfs: avoid large kmalloc()s for the fdtable	2011-04-28 11:28:20 -07:00
filesystems.c	fs: synchronize_rcu when unregister_filesystem success not failure	2011-04-17 10:42:01 -07:00
fs_struct.c
fs-writeback.c	fs: pass exact type of data dirties to ->dirty_inode	2011-05-27 07:04:40 -04:00
generic_acl.c	userns: rename is_owner_or_cap to inode_owner_or_capable	2011-03-23 19:47:13 -07:00
inode.c	mm: fix assertion mapping->nrpages == 0 in end_writeback()	2011-06-27 18:00:13 -07:00
internal.h	fs: move i_wb_list out from under inode_lock	2011-03-24 21:17:51 -04:00
ioctl.c	vfs: cleanup do_vfs_ioctl()	2011-03-21 00:16:08 -04:00
ioprio.c
Kconfig	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-05-26 09:52:14 -07:00
Kconfig.binfmt
libfs.c	libfs: drop unneeded dentry_unhash	2011-05-26 07:26:50 -04:00
locks.c	fs: fix lock initialization	2011-07-06 10:41:13 -07:00
Makefile	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6	2011-03-16 19:01:29 -07:00
mbcache.c	vmscan: change shrinker API by passing shrink_control struct	2011-05-25 08:39:26 -07:00
mpage.c	mm/fs: add hooks to support cleancache	2011-05-26 10:01:43 -06:00
namei.c	fix comment in generic_permission()	2011-06-20 10:45:56 -04:00
namespace.c	fs/namespace.c: bound mount propagation fix	2011-05-26 07:26:44 -04:00
nfsctl.c	open-style analog of vfs_path_lookup()	2011-03-14 09:15:28 -04:00
no-block.c
open.c	fs: Use BUG_ON(!mnt) at dentry_open().	2011-03-21 01:10:41 -04:00
pipe.c
pnode.c
pnode.h
posix_acl.c
read_write.c
read_write.h
readdir.c
select.c	select: remove unused MAX_SELECT_SECONDS	2011-03-21 00:16:08 -04:00
seq_file.c
signalfd.c
splice.c	splice: add wakeup_pipe_readers()	2011-05-23 19:58:53 +02:00
stack.c
stat.c	readlinkat(), fchownat() and fstatat() with empty relative pathnames	2011-03-15 02:21:45 -04:00
statfs.c	clean statfs-like syscalls up	2011-03-14 09:15:28 -04:00
super.c	more conservative S_NOSEC handling	2011-06-03 18:24:58 -04:00
sync.c	Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block	2011-03-24 10:16:26 -07:00
timerfd.c	timerfd: Fix wakeup of processes when timer is cancelled on clock change	2011-06-14 11:46:14 +02:00
utimes.c	userns: rename is_owner_or_cap to inode_owner_or_capable	2011-03-23 19:47:13 -07:00
xattr_acl.c
xattr.c	Cache xattr security drop check for write v2	2011-05-28 12:02:09 -04:00