Moussa A. Ba 398499d5f3 pagemap clear_refs: modify to specify anon or mapped vma clearing ... The patch makes the clear_refs more versatile in adding the option to select anonymous pages or file backed pages for clearing. This addition has a measurable impact on user space application performance as it decreases the number of pagewalks in scenarios where one is only interested in a specific type of page (anonymous or file mapped). The patch adds anonymous and file backed filters to the clear_refs interface. echo 1 > /proc/PID/clear_refs resets the bits on all pages echo 2 > /proc/PID/clear_refs resets the bits on anonymous pages only echo 3 > /proc/PID/clear_refs resets the bits on file backed pages only Any other value is ignored Signed-off-by: Moussa A. Ba <moussa.a.ba@gmail.com> Signed-off-by: Jared E. Hulbert <jaredeh@gmail.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-09-22 07:17:33 -07:00
..
9p	9p: remove unnecessary v9fses->options which duplicates the mount string	2009-08-17 16:42:28 -05:00
adfs	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
affs
afs	const: make file_lock_operations const	2009-09-22 07:17:25 -07:00
autofs
autofs4	autofs4 - fix missed case when changing to use struct path	2009-08-31 17:44:05 -10:00
befs	const: mark remaining super_operations const	2009-09-22 07:17:24 -07:00
bfs	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
btrfs	const: mark remaining inode_operations as const	2009-09-22 07:17:24 -07:00
cachefiles
cifs	const: mark remaining inode_operations as const	2009-09-22 07:17:24 -07:00
coda
configfs	writeback: add name to backing_dev_info	2009-09-11 09:20:26 +02:00
cramfs
debugfs
devpts	devpts: remove module-related code	2009-06-24 08:15:24 -04:00
dlm	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm	2009-09-18 09:19:10 -07:00
ecryptfs	const: mark remaining address_space_operations const	2009-09-22 07:17:24 -07:00
efs
exofs	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
exportfs
ext2	const: make block_device_operations const	2009-09-22 07:17:25 -07:00
ext3	const: make struct super_block::s_qcop const	2009-09-22 07:17:24 -07:00
ext4	const: make struct super_block::s_qcop const	2009-09-22 07:17:24 -07:00
fat	fat: Opencode sync_page_range_nolock()	2009-09-14 17:08:17 +02:00
freevxfs	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
fscache
fuse	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse	2009-09-18 09:23:03 -07:00
gfs2	Merge branch 'for-2.6.32' of git://git.kernel.dk/linux-2.6-block	2009-09-14 17:55:15 -07:00
hfs	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
hfsplus	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
hostfs	hostfs: set maximum filesize in superblock for proper LFS support	2009-06-30 18:56:03 -07:00
hpfs	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
hppfs
hugetlbfs	writeback: add name to backing_dev_info	2009-09-11 09:20:26 +02:00
isofs	isofs: fix Joliet regression	2009-07-10 19:18:59 -07:00
jbd	jbd: Annotate transaction start also for journal_restart()	2009-09-16 17:44:10 +02:00
jbd2	writeback: get rid of wbc->for_writepages	2009-09-16 15:16:18 +02:00
jffs2	const: mark remaining export_operations const	2009-09-22 07:17:24 -07:00
jfs	jffs2/jfs/xfs: switch over to 'check_acl' rather than 'permission()'	2009-09-08 11:09:04 -07:00
lockd	const: make lock_manager_operations const	2009-09-22 07:17:25 -07:00
minix	Making fs/minix/minix.h double including safe	2009-06-22 11:34:42 -07:00
ncpfs
nfs	const: make file_lock_operations const	2009-09-22 07:17:25 -07:00
nfs_common
nfsd	const: make lock_manager_operations const	2009-09-22 07:17:25 -07:00
nilfs2	const: mark remaining inode_operations as const	2009-09-22 07:17:24 -07:00
nls
notify	inotify: update the group mask on mark addition	2009-08-28 12:51:14 -04:00
ntfs	ntfs: Use new syncing helpers and update comments	2009-09-14 17:08:16 +02:00
ocfs2	const: make struct super_block::s_qcop const	2009-09-22 07:17:24 -07:00
omfs	const: mark remaining inode_operations as const	2009-09-22 07:17:24 -07:00
openpromfs
partitions	const: make block_device_operations const	2009-09-22 07:17:25 -07:00
proc	pagemap clear_refs: modify to specify anon or mapped vma clearing	2009-09-22 07:17:33 -07:00
qnx4
quota	const: make struct super_block::s_qcop const	2009-09-22 07:17:24 -07:00
ramfs	writeback: add name to backing_dev_info	2009-09-11 09:20:26 +02:00
reiserfs	const: make struct super_block::s_qcop const	2009-09-22 07:17:24 -07:00
romfs	const: mark remaining inode_operations as const	2009-09-22 07:17:24 -07:00
smbfs
squashfs	const: mark remaining super_operations const	2009-09-22 07:17:24 -07:00
sysfs	Merge branch 'writeback' of git://git.kernel.dk/linux-2.6-block	2009-09-11 09:17:05 -07:00
sysv
ubifs	const: mark remaining address_space_operations const	2009-09-22 07:17:24 -07:00
udf	udf: Fix possible corruption when close races with write	2009-09-14 19:13:01 +02:00
ufs	ufs: sector_t cannot be negative	2009-06-18 13:03:46 -07:00
xfs	const: mark remaining super_operations const	2009-09-22 07:17:24 -07:00
aio.c	eventfd: revised interface and cleanups	2009-06-30 18:55:58 -07:00
anon_inodes.c	fs: Provide empty .set_page_dirty() aop for anon inodes	2009-06-18 14:46:10 +02:00
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c	elf_core_dump: use rcu_read_lock() to access ->real_parent	2009-06-18 13:03:52 -07:00
binfmt_elf.c	binfmt_elf: fix PT_INTERP bss handling	2009-09-10 20:11:12 +10:00
binfmt_em86.c
binfmt_flat.c	flat: fix uninitialized ptr with shared libs	2009-08-07 10:39:57 -07:00
binfmt_misc.c
binfmt_script.c
binfmt_som.c
bio-integrity.c	block: Create bip slabs with embedded integrity vectors	2009-07-01 10:56:25 +02:00
bio.c	block: fix sg SG_DXFER_TO_FROM_DEV regression	2009-07-10 20:31:53 +02:00
block_dev.c	const: make block_device_operations const	2009-09-22 07:17:25 -07:00
buffer.c	writeback: switch to per-bdi threads for flushing data	2009-09-11 09:20:25 +02:00
char_dev.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6	2009-09-11 09:19:35 -07:00
compat_binfmt_elf.c
compat_ioctl.c	compat_ioctl: hook up compat handler for FIEMAP ioctl	2009-08-07 10:39:56 -07:00
compat.c	exec: do not sleep in TASK_TRACED under ->cred_guard_mutex	2009-09-05 11:30:42 -07:00
dcache.c	sched: Pull up the might_sleep() check into cond_resched()	2009-07-18 15:51:44 +02:00
dcookies.c
direct-io.c
drop_caches.c
eventfd.c	eventfd: revised interface and cleanups	2009-06-30 18:55:58 -07:00
eventpoll.c	epoll: fix nested calls support	2009-06-18 13:03:41 -07:00
exec.c	perf: Do the big rename: Performance Counters -> Performance Events	2009-09-21 14:28:04 +02:00
fcntl.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
fifo.c
file_table.c
file.c
filesystems.c
fs_struct.c
fs-writeback.c	writeback: fix possible bdi writeback refcounting problem	2009-09-16 15:18:53 +02:00
generic_acl.c
inode.c	const: mark remaining inode_operations as const	2009-09-22 07:17:24 -07:00
internal.h
ioctl.c	fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls	2009-06-24 08:15:27 -04:00
ioprio.c
Kconfig	fs/Kconfig: move nilfs2 outside misc filesystems	2009-09-14 18:27:16 +09:00
Kconfig.binfmt
libfs.c	vfs: make get_sb_pseudo set s_maxbytes to value that can be cast to signed	2009-08-18 16:31:12 -07:00
locks.c	const: make lock_manager_operations const	2009-09-22 07:17:25 -07:00
Makefile
mbcache.c
mpage.c
namei.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6	2009-09-11 08:55:49 -07:00
namespace.c	vfs: mnt_want_write_file(): fix special file handling	2009-08-07 10:39:56 -07:00
nfsctl.c
no-block.c
open.c	CRED: Add some configurable debugging [try #6]	2009-09-02 21:29:01 +10:00
pipe.c	lockdep: Fix lockdep annotation for pipe_double_lock()	2009-07-22 21:14:14 +02:00
pnode.c
pnode.h
posix_acl.c
read_write.c
read_write.h
readdir.c
select.c	poll/select: initialize triggered field of struct poll_wqueues	2009-08-15 18:40:11 -07:00
seq_file.c	seq_file: add function to write binary data	2009-06-18 13:03:57 -07:00
signalfd.c
splice.c	Merge branch 'for-2.6.32' of git://git.kernel.dk/linux-2.6-block	2009-09-14 17:55:15 -07:00
stack.c
stat.c
super.c	const: mark remaining super_operations const	2009-09-22 07:17:24 -07:00
sync.c	fs: Assign bdi in super_block	2009-09-16 15:18:51 +02:00
timerfd.c
utimes.c
xattr_acl.c
xattr.c	VFS: Factor out part of vfs_setxattr so it can be called from the SELinux hook for inode_setsecctx.	2009-09-10 10:11:22 +10:00