Andrew Morton 9d0243bca3 [PATCH] drop-pagecache ...

Add /proc/sys/vm/drop_caches.  When written to, this will cause the kernel to
discard as much pagecache and/or reclaimable slab objects as it can.  THis
operation requires root permissions.

It won't drop dirty data, so the user should run `sync' first.

Caveats:

a) Holds inode_lock for exorbitant amounts of time.

b) Needs to be taught about NUMA nodes: propagate these all the way through
   so the discarding can be controlled on a per-node basis.

This is a debugging feature: useful for getting consistent results between
filesystem benchmarks.  We could possibly put it under a config option, but
it's less than 300 bytes.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2006-01-08 20:12:40 -08:00

..

9p

[INET_SOCK]: Move struct inet_sock & helper functions to net/inet_sock.h

2006-01-03 13:11:21 -08:00

adfs

[PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason

2005-11-09 07:55:57 -08:00

affs

[PATCH] kfree cleanup: fs

2005-11-07 07:54:06 -08:00

afs

fs/afs/callback.c should #include "cmservice.h"

2005-11-08 16:56:17 +01:00

autofs

[PATCH] kfree cleanup: fs

2005-11-07 07:54:06 -08:00

autofs4

[PATCH] kfree cleanup: fs

2005-11-07 07:54:06 -08:00

befs

remove unused fs/befs/attribute.c

2005-11-08 16:54:53 +01:00

bfs

[PATCH] bfs iget() abuses

2005-10-04 13:22:01 -07:00

cifs

[CIFS] For previous fix, mode on mkdir needed S_IFDIR left out.

2005-11-29 22:38:43 -08:00

coda

[PATCH] Driver Core: fix up all callers of class_device_create()

2005-10-28 09:52:52 -07:00

configfs

[PATCH] configfs: User-driven configuration filesystem

2006-01-03 11:45:28 -08:00

cramfs

[PATCH] fs/cramfs/uncompress.c should #include <linux/cramfs_fs.h>

2005-09-10 10:06:35 -07:00

debugfs

[PATCH] remove duplicate get_dentry functions in various places

2005-06-23 09:45:20 -07:00

devfs

[PATCH] kfree cleanup: fs

2005-11-07 07:54:06 -08:00

devpts

[PATCH] Generic VFS fallback for security xattrs

2005-09-05 00:05:52 -07:00

efs

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

exportfs

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

ext2

[PATCH] ext2: remove duplicate newlines in ext2_fill_super

2005-11-13 18:14:17 -08:00

ext3

[PATCH] ext3: Wrong return value for EXT3_IOC_GROUP_ADD

2005-11-28 14:42:24 -08:00

fat

[PATCH] fat: respect silent mount flag

2005-11-09 07:55:58 -08:00

freevxfs

fs/freevxfs/: add #include's

2005-11-08 16:47:45 +01:00

fuse

[PATCH] fuse: check file type in lookup

2006-01-06 08:33:56 -08:00

hfs

[PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason

2005-11-09 07:55:57 -08:00

hfsplus

[PATCH] hfsplus oops fix

2006-01-06 08:33:20 -08:00

hostfs

[PATCH] uml: hostfs - fix possible PAGE_CACHE_SHIFT overflows

2005-12-29 09:48:15 -08:00

hpfs

[PATCH] hpfs: remove spurious mtime update

2005-11-09 07:55:57 -08:00

hppfs

[PATCH] hppfs: fix symlink error path

2005-08-26 11:39:19 -07:00

hugetlbfs

[PATCH] Hugetlb: Copy on Write support

2006-01-06 08:33:23 -08:00

isofs

[PATCH] kfree cleanup: fs

2005-11-07 07:54:06 -08:00

jbd

[PATCH] jbd: split checkpoint lists

2006-01-06 08:33:59 -08:00

jffs

jffs_fm.c should #include "intrep.h"

2005-11-08 16:48:36 +01:00

jffs2

[JFFS2] Fix the slab cache constructor of 'struct jffs2_inode_info' objects.

2005-11-29 16:57:17 +01:00

jfs

JFS: set i_ctime & i_mtime on target directory when creating links

2005-10-31 16:53:04 -06:00

lockd

SUNRPC: get rid of cl_chatty

2006-01-06 14:58:56 -05:00

minix

[PATCH] update filesystems for new delete_inode behavior

2005-09-09 13:57:27 -07:00

msdos

[PATCH] fat: remove the unneeded vfat_find() in vfat_rename()

2005-10-30 17:37:32 -08:00

ncpfs

[PATCH] add a file_permission helper

2005-11-09 07:55:59 -08:00

nfs

NFSv4: Fix an Oops in nfs_do_expire_all_delegations

2006-01-06 14:58:58 -05:00

nfs_common

[PATCH] nfsacl: Solaris VxFS compatibility fix

2005-10-11 09:46:54 -07:00

nfsd

SUNRPC: get rid of cl_chatty

2006-01-06 14:58:56 -05:00

nls

[PATCH] make some things static

2005-05-05 16:36:47 -07:00

ntfs

update the email address of Randy Dunlap

2006-01-03 13:37:51 +01:00

ocfs2

[PATCH] This patch contains the following cleanups:

2006-01-03 11:45:55 -08:00

openpromfs

[PATCH] kfree cleanup: fs

2005-11-07 07:54:06 -08:00

partitions

[PATCH] s390: cleanup Kconfig

2006-01-06 08:33:53 -08:00

proc

[PATCH] s390: cleanup Kconfig

2006-01-06 08:33:53 -08:00

qnx4

fs/qnx4/bitmap.c: #if 0 qnx4_new_block()

2006-01-03 13:21:37 +01:00

ramfs

[PATCH] NOMMU: Provide shared-writable mmap support on ramfs

2006-01-06 08:33:32 -08:00

reiserfs

s/retreiv/retriev/g

2006-01-03 13:27:11 +01:00

relayfs

[PATCH] relayfs: remove warning printk() in relay_switch_subbuf()

2005-12-20 17:33:22 -08:00

romfs

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

smbfs

[PATCH] smbfs: 'names_cache' memory leak

2005-11-07 07:53:39 -08:00

sysfs

[PATCH] sysfs: handle failures in sysfs_make_dirent

2006-01-04 16:18:09 -08:00

sysv

[PATCH] update filesystems for new delete_inode behavior

2005-09-09 13:57:27 -07:00

udf

remove pointers to the defunct UDF mailing list

2006-01-03 13:19:13 +01:00

ufs

[PATCH] fs/ufs: debug mode compilation failure

2006-01-06 15:22:28 -08:00

vfat

[PATCH] fat: remove the unneeded vfat_find() in vfat_rename()

2005-10-30 17:37:32 -08:00

xfs

[PATCH] xfs: missing gfp_t annotations

2005-12-15 10:04:29 -08:00

aio.c

[PATCH] aio: replace locking comments with assert_spin_locked()

2005-11-13 18:14:16 -08:00

attr.c

[PATCH] fs/attr.c: remove BUG()

2005-10-30 17:37:27 -08:00

bad_inode.c

[PATCH] make some things static

2005-05-05 16:36:47 -07:00

binfmt_aout.c

[PATCH] mm: mm_init set_mm_counters

2005-10-29 21:40:38 -07:00

binfmt_elf_fdpic.c

[PATCH] kfree cleanup: fs

2005-11-07 07:54:06 -08:00

binfmt_elf.c

[PATCH] kfree cleanup: fs

2005-11-07 07:54:06 -08:00

binfmt_em86.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

binfmt_flat.c

[PATCH] mm: mm_init set_mm_counters

2005-10-29 21:40:38 -07:00

binfmt_misc.c

[PATCH] add a file_permission helper

2005-11-09 07:55:59 -08:00

binfmt_script.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

binfmt_som.c

[PATCH] mm: mm_init set_mm_counters

2005-10-29 21:40:38 -07:00

bio.c

[BLOCK] bio: check for same page merge possibilities in __bio_add_page()

2006-01-06 09:43:28 +01:00

block_dev.c

[PATCH] block: add unlocked_ioctl support for block devices

2005-06-23 09:45:32 -07:00

buffer.c

[PATCH] __find_get_block_slow() cleanup

2005-11-07 07:53:39 -08:00

char_dev.c

[PATCH] cdev: cdev_put oops

2005-07-12 16:01:02 -07:00

compat_ioctl.c

[COMPAT] net: SIOCGIFCONF data corruption

2005-11-20 13:41:59 -08:00

compat.c

Relax the rw_verify_area() error checking.

2006-01-04 16:20:40 -08:00

dcache.c

[PATCH] Remove hlist_for_each_rcu() API, convert existing use to hlist_for_each_entry_rcu

2005-11-07 07:53:35 -08:00

dcookies.c

[PATCH] dcookies.c: use proper refcounting functions

2005-07-07 18:23:52 -07:00

direct-io.c

[PATCH] core remove PageReserved

2005-10-29 21:40:39 -07:00

dnotify.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

dquot.c

[PATCH] Fix oops in vfs_quotaon_mount()

2005-11-28 14:42:26 -08:00

drop_caches.c

[PATCH] drop-pagecache

2006-01-08 20:12:40 -08:00

eventpoll.c

[PATCH] epoll: handle timeout overflow

2005-09-28 07:46:41 -07:00

exec.c

[PATCH] mm: rmap optimisation

2006-01-06 08:33:27 -08:00

fcntl.c

[PATCH] files: lock-free fd look-up

2005-09-09 13:57:55 -07:00

fifo.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

file_table.c

[PATCH] mm: rename kmem_cache_s to kmem_cache

2005-11-07 07:53:24 -08:00

file.c

[PATCH] Fix the fdtable freeing in the case of vmalloced fdset/arrays

2005-09-14 12:38:26 -07:00

filesystems.c

[PATCH] fix missing includes

2005-10-30 17:37:32 -08:00

fs-writeback.c

[PATCH] kernel-docs: fix kernel-doc format problems

2005-11-07 07:53:55 -08:00

inode.c

[PATCH] fix nr_unused accounting, and avoid recursing in iput with I_WILL_FREE set

2005-10-30 17:37:26 -08:00

inotify.c

[PATCH] inotify: add two inotify_add_watch flags

2005-12-12 08:57:43 -08:00

ioctl.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

ioprio.c

fs/ioprio.c should #include <linux/syscalls.h>

2005-11-08 16:57:02 +01:00

Kconfig

[PATCH] o Update Kconfig documentation to reflect support for readonly mounts.

2006-01-03 11:45:57 -08:00

Kconfig.binfmt

[PATCH] CONFIG_IA32

2005-10-30 17:37:10 -08:00

libfs.c

[PATCH] fix fsync(dir) return value for ram-based filesystems

2005-06-25 16:24:38 -07:00

locks.c

NLM: Further cancel fixes

2006-01-06 14:58:54 -05:00

Makefile

[PATCH] drop-pagecache

2006-01-08 20:12:40 -08:00

mbcache.c

[PATCH] kfree cleanup: fs

2005-11-07 07:54:06 -08:00

mpage.c

[PATCH] add AOP_TRUNCATED_PAGE, prepend AOP_ to WRITEPAGE_ACTIVATE

2006-01-03 11:45:42 -08:00

namei.c

[PATCH] fs/namei.c: make path_lookup_create() static

2005-11-09 07:56:40 -08:00

namespace.c

[PATCH] add a vfs_permission helper

2005-11-09 07:55:58 -08:00

nfsctl.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

open.c

[PATCH] add a file_permission helper

2005-11-09 07:55:59 -08:00

pipe.c

[PATCH] sched: TASK_NONINTERACTIVE

2005-09-10 10:06:22 -07:00

pnode.c

[PATCH] unbindable mounts

2005-11-07 18:18:11 -08:00

pnode.h

[PATCH] unbindable mounts

2005-11-07 18:18:11 -08:00

posix_acl.c

[PATCH] gfp flags annotations - part 1

2005-10-08 15:00:57 -07:00

quota_v1.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

quota_v2.c

[PATCH] quota: possible bug in quota format v2 support

2005-04-16 15:25:47 -07:00

quota.c

[PATCH] quota: small cleanups

2005-11-07 07:53:39 -08:00

read_write.c

Relax the rw_verify_area() error checking.

2006-01-04 16:20:40 -08:00

readdir.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

select.c

[PATCH] files: lock-free fd look-up

2005-09-09 13:57:55 -07:00

seq_file.c

[PATCH] allow callers of seq_open do allocation themselves

2005-11-07 18:18:09 -08:00

stat.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

super.c

[PATCH] remove mount/umount uevents from superblock handling

2006-01-04 16:18:07 -08:00

xattr_acl.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

xattr.c

[PATCH] Fix listxattr() for generic security attributes

2005-12-12 08:57:42 -08:00