Mel Gorman b45972265f mm: vmscan: take page buffers dirty and locked state into account ... Page reclaim keeps track of dirty and under writeback pages and uses it to determine if wait_iff_congested() should stall or if kswapd should begin writing back pages. This fails to account for buffer pages that can be under writeback but not PageWriteback which is the case for filesystems like ext3 ordered mode. Furthermore, PageDirty buffer pages can have all the buffers clean and writepage does no IO so it should not be accounted as congested. This patch adds an address_space operation that filesystems may optionally use to check if a page is really dirty or really under writeback. An implementation is provided for for buffer_heads is added and used for block operations and ext3 in ordered mode. By default the page flags are obeyed. Credit goes to Jan Kara for identifying that the page flags alone are not sufficient for ext3 and sanity checking a number of ideas on how the problem could be addressed. Signed-off-by: Mel Gorman <mgorman@suse.de> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.cz> Cc: Rik van Riel <riel@redhat.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Cc: Zlatko Calusic <zcalusic@bitsync.net> Cc: dormando <dormando@rydia.net> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-07-03 16:07:29 -07:00
..
9p	Lots of bug fixes, cleanups and optimizations. In the bug fixes	2013-07-02 09:39:34 -07:00
adfs	Don't pass inode to ->d_hash() and ->d_compare()	2013-06-29 12:57:36 +04:00
affs	Don't pass inode to ->d_hash() and ->d_compare()	2013-06-29 12:57:36 +04:00
afs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
autofs4	[readdir] switch dcache_readdir() users to ->iterate()	2013-06-29 12:46:48 +04:00
befs	[readdir] convert befs	2013-06-29 12:56:55 +04:00
bfs	[readdir] convert bfs	2013-06-29 12:56:33 +04:00
btrfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
cachefiles	cachefiles: remove unused macro list_to_page()	2013-06-19 14:16:47 +01:00
ceph	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
cifs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
coda	coda: don't bother with find_inode_number()	2013-06-29 12:57:20 +04:00
configfs	configfs: use capped length for ->store_attribute()	2013-07-03 16:07:23 -07:00
cramfs	[readdir] convert f2fs	2013-06-29 12:56:46 +04:00
debugfs	debugfs: write_file_bool() - ensure strtobool() operates on valid data	2013-06-03 13:55:02 -07:00
devpts
dlm	dlm: Avoid LVB truncation	2013-06-26 11:38:02 -05:00
ecryptfs	ecryptfs: switch ecryptfs_decode_and_decrypt_filename() from dentry to sb	2013-06-29 12:57:25 +04:00
efivarfs	Don't pass inode to ->d_hash() and ->d_compare()	2013-06-29 12:57:36 +04:00
efs	[readdir] convert efs	2013-06-29 12:56:31 +04:00
exofs	Lots of bug fixes, cleanups and optimizations. In the bug fixes	2013-07-02 09:39:34 -07:00
exportfs	[readdir] constify ->actor	2013-06-29 12:57:05 +04:00
ext2	[O_TMPFILE] it's still short a few helpers, but infrastructure should be OK now...	2013-06-29 12:57:10 +04:00
ext3	mm: vmscan: take page buffers dirty and locked state into account	2013-07-03 16:07:29 -07:00
ext4	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
f2fs	This patch-set includes the following major enhancement patches.	2013-07-02 09:42:38 -07:00
fat	Don't pass inode to ->d_hash() and ->d_compare()	2013-06-29 12:57:36 +04:00
freevxfs	[readdir] convert freevxfs	2013-06-29 12:56:53 +04:00
fscache	FS-Cache: Don't use spin_is_locked() in assertions	2013-06-19 14:16:47 +01:00
fuse	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
gfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
hfs	Don't pass inode to ->d_hash() and ->d_compare()	2013-06-29 12:57:36 +04:00
hfsplus	Don't pass inode to ->d_hash() and ->d_compare()	2013-06-29 12:57:36 +04:00
hostfs	[readdir] convert hostfs	2013-06-29 12:56:59 +04:00
hpfs	Don't pass inode to ->d_hash() and ->d_compare()	2013-06-29 12:57:36 +04:00
hppfs	[readdir] convert procfs	2013-06-29 12:56:32 +04:00
hugetlbfs	hugetlbfs: fix mmap failure in unaligned size request	2013-05-07 18:38:27 -07:00
isofs	Don't pass inode to ->d_hash() and ->d_compare()	2013-06-29 12:57:36 +04:00
jbd	jbd: change journal_invalidatepage() to accept length	2013-05-21 23:26:36 -04:00
jbd2	jbd2: invalidate handle if jbd2_journal_restart() fails	2013-07-01 08:12:41 -04:00
jffs2	[readdir] convert jffs2	2013-06-29 12:56:47 +04:00
jfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
lockd	locks: add a new "lm_owner_key" lock operation	2013-06-29 12:57:45 +04:00
logfs	Lots of bug fixes, cleanups and optimizations. In the bug fixes	2013-07-02 09:39:34 -07:00
minix	minix: bug widening a binary "not" operation	2013-06-29 12:57:35 +04:00
ncpfs	ncpfs: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT	2013-07-03 16:07:26 -07:00
nfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
nfs_common
nfsd	locks: protect most of the file_lock handling with i_lock	2013-06-29 12:57:42 +04:00
nilfs2	[readdir] convert nilfs2	2013-06-29 12:56:36 +04:00
nls
notify	fanotify: quit wanking with FASYNC in ->release()	2013-06-29 12:57:23 +04:00
ntfs	Lots of bug fixes, cleanups and optimizations. In the bug fixes	2013-07-02 09:39:34 -07:00
ocfs2	ocfs2: fix NULL pointer dereference when traversing o2hb_all_regions	2013-07-03 16:07:25 -07:00
omfs	[readdir] convert omfs	2013-06-29 12:56:37 +04:00
openpromfs	[readdir] convert openpromfs	2013-06-29 12:56:32 +04:00
proc	pagemap: prepare to reuse constant bits with page-shift	2013-07-03 16:07:26 -07:00
pstore	Couple of pstore cleanups	2013-05-09 16:42:10 -07:00
qnx4	[readdir] convert qnx4	2013-06-29 12:56:38 +04:00
qnx6	[readdir] convert qnx6	2013-06-29 12:56:39 +04:00
quota
ramfs
reiserfs	Lots of bug fixes, cleanups and optimizations. In the bug fixes	2013-07-02 09:39:34 -07:00
romfs	[readdir] convert romfs	2013-06-29 12:56:29 +04:00
squashfs	[readdir] convert squashfs	2013-06-29 12:56:28 +04:00
sysfs	Driver core patches for 3.11-rc1	2013-07-02 11:44:19 -07:00
sysv	Don't pass inode to ->d_hash() and ->d_compare()	2013-06-29 12:57:36 +04:00
ubifs	Lots of bug fixes, cleanups and optimizations. In the bug fixes	2013-07-02 09:39:34 -07:00
udf	udf: provide ->tmpfile()	2013-06-29 12:57:12 +04:00
ufs	[readdir] simple local unixlike: switch to ->iterate()	2013-06-29 12:46:47 +04:00
xfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
aio.c	constify rw_verify_area()	2013-06-29 12:57:34 +04:00
anon_inodes.c
attr.c
bad_inode.c	[readdir] ->readdir() is gone	2013-06-29 12:57:04 +04:00
binfmt_aout.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
binfmt_elf_fdpic.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2013-05-02 10:16:16 -07:00
binfmt_elf.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2013-05-02 10:16:16 -07:00
binfmt_em86.c
binfmt_flat.c	new helper: read_code()	2013-04-29 15:40:23 -04:00
binfmt_misc.c	binfmt_misc: reuse string_unescape_inplace()	2013-04-30 17:04:03 -07:00
binfmt_script.c
binfmt_som.c
bio-integrity.c
bio.c	Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block	2013-05-08 10:13:35 -07:00
block_dev.c	mm: vmscan: take page buffers dirty and locked state into account	2013-07-03 16:07:29 -07:00
buffer.c	mm: vmscan: take page buffers dirty and locked state into account	2013-07-03 16:07:29 -07:00
char_dev.c
compat_binfmt_elf.c
compat_ioctl.c	compat.c: LOOP_CLR_FD is taken care of in loop.c itself...	2013-06-29 12:46:44 +04:00
compat.c	[readdir] constify ->actor	2013-06-29 12:57:05 +04:00
coredump.c	do_coredump(): don't wait for thaw if coredump has already been interrupted	2013-05-04 14:45:54 -04:00
coredump.h
dcache.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
dcookies.c
direct-io.c	Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block	2013-05-08 10:13:35 -07:00
drop_caches.c
eventfd.c
eventpoll.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2013-05-01 07:21:43 -07:00
exec.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
fcntl.c
fhandle.c
file_table.c	Replace a bunch of file->dentry->d_inode refs with file_inode()	2013-06-29 12:57:13 +04:00
file.c	don't bother with deferred freeing of fdtables	2013-05-01 17:31:42 -04:00
filesystems.c
fs_struct.c
fs-writeback.c	sync: don't block the flusher thread waiting on IO	2013-07-02 09:16:42 -07:00
generic_acl.c
inode.c	allow the temp files created by open() to be linked to	2013-06-29 12:57:11 +04:00
internal.h	constify rw_verify_area()	2013-06-29 12:57:34 +04:00
ioctl.c
ioprio.c
Kconfig
Kconfig.binfmt	fs: make binfmt support for #! scripts modular and removable	2013-04-30 17:04:04 -07:00
libfs.c	[readdir] switch dcache_readdir() users to ->iterate()	2013-06-29 12:46:48 +04:00
locks.c	locks: give the blocked_hash its own spinlock	2013-06-29 12:57:46 +04:00
Makefile	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
mbcache.c
mount.h
mpage.c
namei.c	Don't pass inode to ->d_hash() and ->d_compare()	2013-06-29 12:57:36 +04:00
namespace.c	create_mnt_ns: unidiomatic use of list_add()	2013-05-04 15:18:53 -04:00
no-block.c
open.c	[O_TMPFILE] it's still short a few helpers, but infrastructure should be OK now...	2013-06-29 12:57:10 +04:00
pipe.c	aio: don't include aio.h in sched.h	2013-05-07 20:16:25 -07:00
pnode.c	vfs: Fix invalid ida_remove() call	2013-05-31 15:16:33 -04:00
pnode.h	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
posix_acl.c
proc_namespace.c
read_write.c	vfs: export lseek_execute() to modules	2013-07-03 16:23:27 +04:00
readdir.c	[readdir] constify ->actor	2013-06-29 12:57:05 +04:00
select.c
seq_file.c
signalfd.c
splice.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-07-03 09:10:19 -07:00
stack.c
stat.c
statfs.c
super.c
sync.c
timerfd.c
utimes.c
xattr_acl.c
xattr.c