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David Chinner 455486b9cc [XFS] avoid all reclaimable inodes in xfs_sync_inodes_ag
If we are syncing data in xfs_sync_inodes_ag(), the VFS inode must still
be referencable as the dirty data state is carried on the VFS inode. hence
if we can't get a reference via igrab(), the inode must be in reclaim
which implies that it has no dirty data attached.

Leave such inodes to the reclaim code to flush the dirty inode state to
disk and so avoid attempting to access the VFS inode when it may not exist
in xfs_sync_inodes_ag().

Version 4:
o don't reference linux inode until after igrab() succeeds

Version 3:
o converted unlock/rele to an xfs_iput() call.

Version 2:
o change igrab logic to be more linear
o remove initial reclaimable inode check now that we are using
  igrab() failure to find reclaimable inodes
o assert that igrab failure occurs only on reclaimable inodes
o clean up inode locking - only grab the iolock if we are doing
  a SYNC_DELWRI call and we have a dirty inode.

SGI-PV: 987246

SGI-Modid: xfs-linux-melb:xfs-kern:32391a

Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Peter Leckie <pleckie@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-10-30 18:03:14 +11:00
..
9p 9p: fix format warning 2008-10-22 18:48:45 -05:00
adfs vfs: Use const for kernel parser table 2008-10-13 10:10:37 -07:00
affs vfs: Use const for kernel parser table 2008-10-13 10:10:37 -07:00
afs [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
autofs vfs: Use const for kernel parser table 2008-10-13 10:10:37 -07:00
autofs4 autofs4: add miscellaneous device for ioctls 2008-10-16 11:21:39 -07:00
befs befs: annotate fs32 on tests for superblock endianness 2008-10-16 11:21:46 -07:00
bfs [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
cifs Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 2008-10-23 10:43:36 -07:00
coda Switch to a valid email address... 2008-10-27 08:40:17 -07:00
configfs [PATCH] assorted path_lookup() -> kern_path() conversions 2008-10-23 05:12:52 -04:00
cramfs cramfs: fix named-pipe handling 2008-08-20 15:40:32 -07:00
debugfs integrity: special fs magic 2008-10-13 09:47:43 +11:00
devpts vfs: Use const for kernel parser table 2008-10-13 10:10:37 -07:00
dlm dlm: choose better identifiers 2008-09-05 09:51:30 -05:00
ecryptfs [PATCH] assorted path_lookup() -> kern_path() conversions 2008-10-23 05:12:52 -04:00
efs [PATCH] switch all filesystems over to d_obtain_alias 2008-10-23 05:13:01 -04:00
exportfs [PATCH] prepare vfs_readdir() callers to returning filldir result 2008-10-23 05:13:10 -04:00
ext2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
ext3 ext3: Fix duplicate entries returned from getdents() system call 2008-10-25 22:37:44 -04:00
ext4 ext4: Fix duplicate entries returned from getdents() system call 2008-10-25 22:37:55 -04:00
fat [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
freevxfs
fuse [PATCH] switch all filesystems over to d_obtain_alias 2008-10-23 05:13:01 -04:00
gfs2 [PATCH] switch all filesystems over to d_obtain_alias 2008-10-23 05:13:01 -04:00
hfs [PATCH] move executable checking into ->permission() 2008-10-23 05:13:25 -04:00
hfsplus [PATCH] move executable checking into ->permission() 2008-10-23 05:13:25 -04:00
hostfs [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
hpfs [PATCH] hpfs: cleanup ->setattr 2008-10-23 05:12:58 -04:00
hppfs [patch] hppfs: remove hppfs_permission 2008-07-26 20:53:07 -04:00
hugetlbfs vfs: Use const for kernel parser table 2008-10-13 10:10:37 -07:00
isofs [PATCH] switch all filesystems over to d_obtain_alias 2008-10-23 05:13:01 -04:00
jbd jbd: abort instead of waiting for nonexistent transactions 2008-10-23 08:55:02 -07:00
jbd2 fs/Kconfig: move ext2, ext3, ext4, JBD, JBD2 out 2008-10-20 11:43:59 -07:00
jffs2 [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
jfs Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
lockd NLM: Remove "proto" argument from lockd_up() 2008-10-04 17:12:27 -04:00
minix SL*B: drop kmem cache argument from constructor 2008-07-26 12:00:07 -07:00
msdos fatfs: add UTC timestamp option 2008-07-25 10:53:34 -07:00
ncpfs [PATCH] don't pass nameidata to __ncp_lookup_validate() 2008-07-26 20:53:37 -04:00
nfs Switch to a valid email address... 2008-10-27 08:40:17 -07:00
nfs_common
nfsd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2008-10-23 10:22:40 -07:00
nls remove CONFIG_KMOD from fs 2008-10-17 02:38:36 +11:00
ntfs [PATCH] switch all filesystems over to d_obtain_alias 2008-10-23 05:13:01 -04:00
ocfs2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
omfs [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
openpromfs [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
partitions [PATCH] sanitize blkdev_get() and friends 2008-10-21 07:49:06 -04:00
proc Switch to a valid email address... 2008-10-27 08:40:17 -07:00
qnx4 SL*B: drop kmem cache argument from constructor 2008-07-26 12:00:07 -07:00
ramfs Ramfs and Ram Disk pages are unevictable 2008-10-20 08:50:26 -07:00
reiserfs Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
romfs romfs_readpage: don't report errors for pages beyond i_size 2008-07-30 14:30:34 -07:00
smbfs [PATCH] sanitize ->permission() prototype 2008-07-26 20:53:14 -04:00
sysfs [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
sysv SL*B: drop kmem cache argument from constructor 2008-07-26 12:00:07 -07:00
ubifs Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6 2008-10-20 09:19:03 -07:00
udf [PATCH] get rid of on-stack dentry in udf 2008-10-23 05:13:15 -04:00
ufs [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
vfat fatfs: add UTC timestamp option 2008-07-25 10:53:34 -07:00
xfs [XFS] avoid all reclaimable inodes in xfs_sync_inodes_ag 2008-10-30 18:03:14 +11:00
Kconfig [patch 1/3] FS_MBCACHE: don't needlessly make it built-in 2008-10-23 05:13:26 -04:00
Kconfig.binfmt add CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS 2008-10-20 08:52:39 -07:00
Makefile Configure out AIO support 2008-10-16 11:21:51 -07:00
aio.c [PATCH] f_count may wrap around 2008-07-26 20:53:40 -04:00
anon_inodes.c flag parameters: NONBLOCK in anon_inode_getfd 2008-07-24 10:47:28 -07:00
attr.c [patch] vfs: make security_inode_setattr() calling consistent 2008-10-23 05:13:27 -04:00
bad_inode.c [PATCH] sanitize ->permission() prototype 2008-07-26 20:53:14 -04:00
binfmt_aout.c tracehook: exec 2008-07-26 12:00:08 -07:00
binfmt_elf.c Merge branch 'v28-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-20 13:19:56 -07:00
binfmt_elf_fdpic.c binfmt_elf_fdpic: Update for cputime changes. 2008-10-20 20:17:18 -07:00
binfmt_em86.c Allow recursion in binfmt_script and binfmt_misc 2008-10-16 11:21:38 -07:00
binfmt_flat.c uclinux: fix gzip header parsing in binfmt_flat.c 2008-10-16 11:21:29 -07:00
binfmt_misc.c Allow recursion in binfmt_script and binfmt_misc 2008-10-16 11:21:38 -07:00
binfmt_script.c Allow recursion in binfmt_script and binfmt_misc 2008-10-16 11:21:38 -07:00
binfmt_som.c binfmt_som.c: add MODULE_LICENSE 2008-10-16 11:21:38 -07:00
bio-integrity.c block: Introduce integrity data ownership flag 2008-10-09 08:56:21 +02:00
bio.c block: mark bio_split_pool static 2008-10-09 08:57:05 +02:00
block_dev.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
buffer.c fs: buffer lock use lock bitops 2008-10-20 08:52:32 -07:00
char_dev.c [PATCH] tidy up chrdev_open 2008-10-23 05:12:59 -04:00
compat.c select: deal with math overflow from borderline valid userland data 2008-10-26 11:22:08 -07:00
compat_binfmt_elf.c
compat_ioctl.c remove unused #include <linux/dirent.h>'s 2008-07-25 10:53:34 -07:00
dcache.c [PATCH] fs: add a sanity check in d_free 2008-10-23 05:17:12 -04:00
dcookies.c
direct-io.c Remove Andrew Morton's old email accounts 2008-10-16 11:21:32 -07:00
dnotify.c [PATCH] split linux/file.h 2008-05-01 13:08:16 -04:00
dquot.c [PATCH] switch quota_on-related stuff to kern_path() 2008-10-23 05:12:44 -04:00
drop_caches.c
eventfd.c flag parameters: check magic constants 2008-07-24 10:47:29 -07:00
eventpoll.c epoll: avoid double-inserts in case of EFAULT 2008-10-26 12:09:49 -07:00
exec.c coredump: format_corename: don't append .%pid if multi-threaded 2008-10-20 08:52:39 -07:00
fcntl.c [PATCH] clean dup2() up a bit 2008-08-01 11:25:24 -04:00
fifo.c [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
file.c [PATCH] merge locate_fd() and get_unused_fd() 2008-08-01 11:25:23 -04:00
file_table.c [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
filesystems.c proc: move /proc/filesystems to fs/filesystems.c 2008-10-23 14:27:09 +04:00
fs-writeback.c Remove Andrew Morton's old email accounts 2008-10-16 11:21:32 -07:00
generic_acl.c
inode.c Inode: Allow external list initialisation 2008-10-30 17:35:24 +11:00
inotify.c
inotify_user.c inotify: fix lock ordering wrt do_page_fault's mmap_sem 2008-10-02 15:53:13 -07:00
internal.h
ioctl.c provide generic_block_fiemap() only with BLOCK=y 2008-10-12 11:44:37 -07:00
ioprio.c fix setpriority(PRIO_PGRP) thread iterator breakage 2008-08-20 15:40:32 -07:00
libfs.c [PATCH] new helper: d_obtain_alias 2008-10-23 05:13:00 -04:00
locks.c Merge branch 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc 2008-10-23 12:04:37 -07:00
mbcache.c
mpage.c Remove Andrew Morton's old email accounts 2008-10-16 11:21:32 -07:00
namei.c [PATCH] move executable checking into ->permission() 2008-10-23 05:13:25 -04:00
namespace.c [RFC PATCH] touch_mnt_namespace when the mount flags change 2008-10-23 05:13:23 -04:00
nfsctl.c
no-block.c
open.c [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
pipe.c [PATCH] reuse xxx_fifo_fops for xxx_pipe_fops 2008-07-26 20:53:06 -04:00
pnode.c
pnode.h
posix_acl.c
quota.c quota: cleanup loop in sync_dquots() 2008-07-25 10:53:35 -07:00
quota_v1.c quota: move function-macros from quota.h to quotaops.h 2008-07-25 10:53:35 -07:00
quota_v2.c quota: move function-macros from quota.h to quotaops.h 2008-07-25 10:53:35 -07:00
read_write.c [PATCH] generic_file_llseek tidyups 2008-10-23 05:12:59 -04:00
read_write.h
readdir.c [PATCH] prepare vfs_readdir() callers to returning filldir result 2008-10-23 05:13:10 -04:00
select.c select: deal with math overflow from borderline valid userland data 2008-10-26 11:22:08 -07:00
seq_file.c seq_file: add seq_cpumask_list(), seq_nodemask_list() 2008-10-20 08:52:39 -07:00
signalfd.c flag parameters: check magic constants 2008-07-24 10:47:29 -07:00
splice.c Don't allow splice() to files opened with O_APPEND 2008-10-09 14:26:38 -07:00
stack.c
stat.c [PATCH] sanitize __user_walk_fd() et.al. 2008-07-26 20:53:34 -04:00
super.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
sync.c SYNC_FILE_RANGE_WRITE may and will block. Document that. 2008-07-24 10:47:17 -07:00
timerfd.c hrtimer: convert timerfd to the new hrtimer apis 2008-09-05 21:35:09 -07:00
utimes.c [PATCH] sanitize __user_walk_fd() et.al. 2008-07-26 20:53:34 -04:00
xattr.c [PATCH] sanitize __user_walk_fd() et.al. 2008-07-26 20:53:34 -04:00
xattr_acl.c