Wu Fengguang
ba9aa8399f
writeback: the kupdate expire timestamp should be a moving target ...
Dynamically compute the dirty expire timestamp at queue_io() time.
writeback_control.older_than_this used to be determined at entrance to
the kupdate writeback work. This _static_ timestamp may go stale if the
kupdate work runs on and on. The flusher may then stuck with some old
busy inodes, never considering newly expired inodes thereafter.
This has two possible problems:
- It is unfair for a large dirty inode to delay (for a long time) the
writeback of small dirty inodes.
- As time goes by, the large and busy dirty inode may contain only
_freshly_ dirtied pages. Ignoring newly expired dirty inodes risks
delaying the expired dirty pages to the end of LRU lists, triggering
the evil pageout(). Nevertheless this patch merely addresses part
of the problem.
v2: keep policy changes inside wb_writeback() and keep the
wbc.older_than_this visibility as suggested by Dave.
CC: Dave Chinner <david@fromorbit.com>
Acked-by: Jan Kara <jack@suse.cz>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Itaru Kitayama <kitayama@cl.bb4u.ne.jp>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
2011-06-08 08:25:21 +08:00
9p: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:53 -04:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
affs: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:53 -04:00
afs: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:53 -04:00
autofs4: bogus dentry_unhash() added in ->unlink()
2011-05-30 01:50:53 -04:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
bfs: remove unnecessary dentry_unhash on dir rename
2011-05-28 01:02:50 -04:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
2011-06-05 06:17:23 +09:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
ceph: remove unnecessary dentry_unhash calls
2011-05-26 07:26:53 -04:00
cifs/ubifs: Fix shrinker API change fallout
2011-05-29 11:17:34 -07:00
coda: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:53 -04:00
configfs: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:54 -04:00
cramfs: generate unique inode number for better inode cache usage
2011-01-13 08:03:23 -08:00
debugfs: move to new strtobool
2011-05-19 16:55:28 +09:30
fs/devpts/inode.c: correctly check d_alloc_name() return code in devpts_pty_new()
2011-03-22 17:44:17 -07:00
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: Remove ecryptfs_header_cache_2
2011-05-29 14:24:25 -05:00
block: remove per-queue plugging
2011-03-10 08:52:07 +01:00
exofs: remove unnecessary dentry_unhash on rmdir/rename_dir
2011-05-26 07:26:57 -04:00
vfs: Add open by file handle support
2011-03-15 02:21:44 -04:00
ext2: remove unnecessary dentry_unhash on rmdir/rename_dir
2011-05-26 07:26:56 -04:00
fs: pass exact type of data dirties to ->dirty_inode
2011-05-27 07:04:40 -04:00
writeback: introduce .tagged_writepages for the WB_SYNC_NONE sync stage
2011-06-08 08:25:20 +08:00
fat: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:54 -04:00
treewide: fix a few typos in comments
2011-05-10 10:16:21 +02:00
fscache: remove dead code under CONFIG_WORKQUEUE_DEBUGFS
2011-05-25 08:39:44 -07:00
fuse: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:53 -04:00
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
hfs: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:52 -04:00
hfsplus: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:52 -04:00
hostfs: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:52 -04:00
hpfs: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:54 -04:00
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
mm: don't access vm_flags as 'int'
2011-05-26 09:20:31 -07:00
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
jbd: Fix comment to match the code in journal_start()
2011-05-24 00:27:53 +02:00
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2011-05-26 09:53:20 -07:00
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: remove unnecessary dentry_unhash from rmdir, dir rename
2011-05-28 01:02:51 -04:00
NLM: Fix "kernel BUG at fs/lockd/host.c:417!" or ".../host.c:283!"
2011-01-25 15:24:47 -05:00
logfs: remove unnecessary dentry_unhash from rmdir, dir rename
2011-05-28 01:02:51 -04:00
minix: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:54 -04:00
ncpfs: fix rename over directory with dangling references
2011-05-28 01:02:53 -04:00
Merge branch 'pnfs-submit' of git://git.open-osd.org/linux-open-osd
2011-05-29 14:10:13 -07:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
Merge branch 'for-2.6.40' of git://linux-nfs.org/~bfields/linux
2011-05-29 11:21:12 -07:00
nilfs2: remove unnecessary dentry_unhash from rmdir, dir rename
2011-05-28 01:02:51 -04:00
Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6
2011-04-07 11:14:49 -07:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
2011-05-27 10:23:10 -07:00
omfs: remove unnecessary dentry_unhash on rmdir, dir rneame
2011-05-28 01:02:52 -04:00
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
Revert "block: Remove extra discard_alignment from hd_struct."
2011-05-30 07:42:51 +02:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
2011-05-29 11:29:28 -07:00
pstore: fix pstore filesystem mount/remount issue
2011-05-16 11:05:00 -07:00
block: remove per-queue plugging
2011-03-10 08:52:07 +01:00
vmscan: change shrinker API by passing shrink_control struct
2011-05-25 08:39:26 -07:00
ramfs: fix memleak on no-mmu arch
2011-04-14 16:06:56 -07:00
reiserfs: remove unnecessary dentry_unhash from rmdir, dir rename
2011-05-28 01:02:51 -04:00
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus
2011-05-29 11:19:45 -07:00
sysfs: remove "last sysfs file:" line from the oops messages
2011-05-13 16:05:51 -07:00
sysv: remove unnecessary dentry_unhash from rmdir, dir rename
2011-05-28 01:02:50 -04:00
UBIFS: fix-up free space earlier
2011-06-03 18:12:31 +03:00
udf: remove unnecessary dentry_unhash from rmdir, dir rename
2011-05-28 01:02:52 -04:00
ufs: remove unnecessary dentry_unhash from rmdir, dir rename
2011-05-28 01:02:51 -04:00
fs: pass exact type of data dirties to ->dirty_inode
2011-05-27 07:04:40 -04:00
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
sanitize vfsmount refcounting changes
2011-01-16 13:47:07 -05:00
Cache xattr security drop check for write v2
2011-05-28 12:02:09 -04:00
fs: provide rcu-walk aware permission i_ops
2011-01-07 17:50:29 +11:00
brk: COMPAT_BRK: fix detection of randomized brk
2011-04-14 16:06:55 -07:00
CRED: Fix load_flat_shared_library() to initialise bprm correctly
2011-05-03 10:10:51 +10:00
block: Require subsystems to explicitly allocate bio_set integrity mempool
2011-03-17 11:11:05 +01:00
block: improve the bio_add_page() and bio_add_pc_page() descriptions
2011-05-28 14:44:46 +02:00
block: blkdev_get() should access ->bd_disk only after success
2011-06-01 08:28:47 +02:00
fs: block_page_mkwrite should wait for writeback to finish
2011-05-28 01:03:21 -04:00
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
exec: unify do_execve/compat_do_execve code
2011-04-09 15:53:56 +02:00
Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
2011-01-07 14:39:20 -08:00
vmscan: change shrinker API by passing shrink_control struct
2011-05-25 08:39:26 -07:00
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
vmscan: change shrinker API by passing shrink_control struct
2011-05-25 08:39:26 -07:00
Docbook: add fs/eventfd.c and fix typos in it
2011-02-21 15:07:04 -08:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
coredump: add support for exe_file in core name
2011-05-26 17:12:36 -07:00
userns: rename is_owner_or_cap to inode_owner_or_capable
2011-03-23 19:47:13 -07:00
fs/fhandle.c: add <linux/personality.h> for ia64
2011-04-14 16:06:56 -07:00
Filesystem: fifo: Fixed coding style issue.
2011-03-21 00:16:09 -04:00
vfs: avoid large kmalloc()s for the fdtable
2011-04-28 11:28:20 -07:00
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
fs: synchronize_rcu when unregister_filesystem success not failure
2011-04-17 10:42:01 -07:00
writeback: the kupdate expire timestamp should be a moving target
2011-06-08 08:25:21 +08:00
sanitize vfsmount refcounting changes
2011-01-16 13:47:07 -05:00
userns: rename is_owner_or_cap to inode_owner_or_capable
2011-03-23 19:47:13 -07:00
fs: cosmetic inode.c cleanups
2011-05-27 09:43:00 -04:00
fs: move i_wb_list out from under inode_lock
2011-03-24 21:17:51 -04:00
vfs: cleanup do_vfs_ioctl()
2011-03-21 00:16:08 -04:00
ioprio: grab rcu_read_lock in sys_ioprio_{set,get}()
2010-11-15 10:23:31 +01:00
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
libfs: drop unneeded dentry_unhash
2011-05-26 07:26:50 -04:00
Merge branch 'for-2.6.39' of git://linux-nfs.org/~bfields/linux
2011-03-24 08:20:39 -07:00
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
vmscan: change shrinker API by passing shrink_control struct
2011-05-25 08:39:26 -07:00
mm/fs: add hooks to support cleancache
2011-05-26 10:01:43 -06:00
vfs: shrink_dcache_parent before rmdir, dir rename
2011-05-30 01:48:27 -04:00
fs/namespace.c: bound mount propagation fix
2011-05-26 07:26:44 -04:00
open-style analog of vfs_path_lookup()
2011-03-14 09:15:28 -04:00
fs: Use BUG_ON(!mnt) at dentry_open().
2011-03-21 01:10:41 -04:00
Fix broken "pipe: use event aware wakeups" optimization
2011-01-20 16:21:59 -08:00
fs: scale mntget/mntput
2011-01-07 17:50:33 +11:00
NFS: Prevent memory allocation failure in nfsacl_encode()
2011-01-25 15:24:47 -05:00
fix signedness mess in rw_verify_area() on 64bit architectures
2011-01-12 20:06:58 -05:00
select: remove unused MAX_SELECT_SECONDS
2011-03-21 00:16:08 -04:00
splice: add wakeup_pipe_readers()
2011-05-23 19:58:53 +02:00
readlinkat(), fchownat() and fstatat() with empty relative pathnames
2011-03-15 02:21:45 -04:00
clean statfs-like syscalls up
2011-03-14 09:15:28 -04:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem
2011-05-26 10:50:56 -07:00
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: Manage cancelable timers in timerfd
2011-05-23 13:59:53 +02:00
userns: rename is_owner_or_cap to inode_owner_or_capable
2011-03-23 19:47:13 -07:00
Cache xattr security drop check for write v2
2011-05-28 12:02:09 -04:00
ba9aa8399f