Hisashi Hifumi 1fca3a05ef ocfs2: Pagecache usage optimization on ocfs2 ...

A page can have multiple buffers and even if a page is not uptodate, some buffers
can be uptodate on pagesize != blocksize environment.
This aops checks that all buffers which correspond to a part of a file
that we want to read are uptodate. If so, we do not have to issue actual
read IO to HDD even if a page is not uptodate because the portion we
want to read are uptodate.
"block_is_partially_uptodate" function is already used by ext2/3/4.
With the following patch random read/write mixed workloads or random read after
random write workloads can be optimized and we can get performance improvement.

Signed-off-by: Hisashi Hifumi <hifumi.hisashi@oss.ntt.co.jp>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

2009-04-03 11:39:26 -07:00

..

9p

vfs: simple_set_mnt() should return void

2009-03-27 14:44:03 -04:00

adfs

fs/adfs: return f_fsid for statfs(2)

2009-04-02 19:05:08 -07:00

affs

fs/affs: return f_fsid for statfs(2)

2009-04-02 19:05:08 -07:00

afs

FS-Cache: Make kAFS use FS-Cache

2009-04-03 16:42:41 +01:00

autofs

constify dentry_operations: autofs, autofs4

2009-03-27 14:44:00 -04:00

autofs4

autofs4: fix lookup deadlock

2009-04-01 08:59:23 -07:00

befs

fs/befs: return f_fsid for statfs(2)

2009-04-02 19:05:08 -07:00

bfs

fs/Kconfig: move bfs out

2009-01-22 13:15:57 +03:00

btrfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-04-02 21:09:10 -07:00

cachefiles

CacheFiles: A cache that backs onto a mounted filesystem

2009-04-03 16:42:41 +01:00

cifs

New helper - current_umask()

2009-03-31 23:00:26 -04:00

coda

constify dentry_operations: misc filesystems

2009-03-27 14:44:00 -04:00

configfs

constify dentry_operations: configfs

2009-03-27 14:44:03 -04:00

cramfs

fs/cramfs: return f_fsid for statfs(2)

2009-04-02 19:05:08 -07:00

debugfs

…

devpts

Merge code for single and multiple-instance mounts

2009-03-27 14:44:04 -04:00

dlm

dlm: fix length calculation in compat code

2009-03-11 12:23:59 -05:00

ecryptfs

ecryptfs: use kzfree()

2009-04-01 08:59:23 -07:00

efs

fs/efs: return f_fsid for statfs(2)

2009-04-02 19:05:09 -07:00

exofs

exofs: Documentation

2009-03-31 19:44:38 +03:00

exportfs

…

ext2

New helper - current_umask()

2009-03-31 23:00:26 -04:00

ext3

Merge branch 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2009-04-03 11:10:33 -07:00

ext4

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-04-02 21:09:10 -07:00

fat

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-04-02 21:09:10 -07:00

freevxfs

fs/Kconfig: move vxfs out

2009-01-22 13:15:58 +03:00

fscache

FS-Cache: Implement data I/O part of netfs API

2009-04-03 16:42:39 +01:00

fuse

mm: page_mkwrite change prototype to match fault

2009-04-01 08:59:14 -07:00

gfs2

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-04-02 21:09:10 -07:00

hfs

fs/hfs: return f_fsid for statfs(2)

2009-04-02 19:05:09 -07:00

hfsplus

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-04-02 21:09:10 -07:00

hostfs

constify dentry_operations: misc filesystems

2009-03-27 14:44:00 -04:00

hpfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-04-02 21:09:10 -07:00

hppfs

hppfs: hppfs_read_file() may return -ERROR

2009-04-02 19:04:53 -07:00

hugetlbfs

mm: reintroduce and deprecate rlimit based access for SHM_HUGETLB

2009-04-01 08:59:12 -07:00

isofs

fs/isofs: return f_fsid for statfs(2)

2009-04-02 19:05:09 -07:00

jbd

Merge branch 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2009-04-03 11:10:33 -07:00

jbd2

jbd2: Update locking coments

2009-03-27 17:20:40 -04:00

jffs2

New helper - current_umask()

2009-03-31 23:00:26 -04:00

jfs

New helper - current_umask()

2009-03-31 23:00:26 -04:00

lockd

NSM: Fix unaligned accesses in nsm_init_private()

2009-04-01 13:24:14 -04:00

minix

fs/minix: return f_fsid for statfs(2)

2009-04-02 19:05:09 -07:00

ncpfs

constify dentry_operations: misc filesystems

2009-03-27 14:44:00 -04:00

nfs

NFS: Add mount options to enable local caching on NFS

2009-04-03 16:42:48 +01:00

nfs_common

…

nfsd

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-04-02 21:09:10 -07:00

nls

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notify

fs: avoid I_NEW inodes

2009-03-27 14:44:05 -04:00

ntfs

ntfs: remove private wrapper of endian helpers

2009-04-01 08:59:18 -07:00

ocfs2

ocfs2: Pagecache usage optimization on ocfs2

2009-04-03 11:39:26 -07:00

omfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-04-02 21:09:10 -07:00

openpromfs

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partitions

Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6

2009-03-26 16:04:22 -07:00

proc

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-04-02 21:09:10 -07:00

qnx4

fs/qnx4: return f_fsid for statfs(2)

2009-04-02 19:05:10 -07:00

quota

vfs: skip I_CLEAR state inodes

2009-04-02 19:04:48 -07:00

ramfs

ramfs: add support for "mode=" mount option

2009-04-01 08:59:22 -07:00

reiserfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-04-02 21:09:10 -07:00

romfs

fs/Kconfig: move romfs out

2009-01-22 13:15:59 +03:00

smbfs

constify dentry_operations: misc filesystems

2009-03-27 14:44:00 -04:00

squashfs

fs/squashfs: return f_fsid for statfs(2)

2009-04-02 19:05:10 -07:00

sysfs

mm: page_mkwrite change prototype to match fault: fix sysfs

2009-04-01 08:59:14 -07:00

sysv

fs/sysv: return f_fsid for statfs(2)

2009-04-02 19:05:10 -07:00

ubifs

mm: page_mkwrite change prototype to match fault

2009-04-01 08:59:14 -07:00

udf

udf: Don't write integrity descriptor too often

2009-04-02 13:36:28 +02:00

ufs

fs/ufs: return f_fsid for statfs(2)

2009-04-02 19:05:10 -07:00

xfs

Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

2009-04-03 09:52:29 -07:00

aio.c

aio: lookup_ioctx can return the wrong value when looking up a bogus context

2009-03-19 15:57:18 -07:00

anon_inodes.c

constify dentry_operations: rest

2009-03-27 14:44:03 -04:00

attr.c

vfs: Use lowercase names of quota functions

2009-03-26 02:18:35 +01:00

bad_inode.c

…

binfmt_aout.c

…

binfmt_elf_fdpic.c

bin_elf_fdpic: check the return value of clear_user

2009-04-02 19:05:01 -07:00

binfmt_elf.c

Trim includes in binfmt_elf

2009-03-31 23:00:27 -04:00

binfmt_em86.c

…

binfmt_flat.c

…

binfmt_misc.c

…

binfmt_script.c

…

binfmt_som.c

Don't crap into descriptor table in binfmt_som

2009-03-31 23:00:28 -04:00

bio-integrity.c

block: add private bio_set for bio integrity allocations

2009-03-24 12:35:17 +01:00

bio.c

block: add private bio_set for bio integrity allocations

2009-03-24 12:35:17 +01:00

block_dev.c

Cleanup after commit 585d3bc06f

2009-04-01 07:07:16 -04:00

buffer.c

Merge branch 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2009-04-03 11:10:33 -07:00

char_dev.c

…

compat_binfmt_elf.c

…

compat_ioctl.c

Merge branch 'for-linus' of git://neil.brown.name/md

2009-04-03 09:08:19 -07:00

compat.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-04-02 21:09:10 -07:00

dcache.c

Trim includes of fdtable.h

2009-03-31 23:00:28 -04:00

dcookies.c

…

direct-io.c

…

drop_caches.c

vfs: skip I_CLEAR state inodes

2009-04-02 19:04:48 -07:00

eventfd.c

epoll keyed wakeups: make eventfd use keyed wakeups

2009-04-01 08:59:20 -07:00

eventpoll.c

epoll keyed wakeups: teach epoll about hints coming with the wakeup key

2009-04-01 08:59:20 -07:00

exec.c

Get rid of indirect include of fs_struct.h

2009-03-31 23:00:27 -04:00

fcntl.c

Fix a lockdep warning in fasync_helper()

2009-03-30 08:00:24 -06:00

fifo.c

…

file_table.c

Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6

2009-03-26 16:14:02 -07:00

file.c

…

filesystems.c

…

fs_struct.c

Get rid of indirect include of fs_struct.h

2009-03-31 23:00:27 -04:00

fs-writeback.c

writeback: guard against jiffies wraparound on inode->dirtied_when checks (try #3)

2009-04-02 19:04:48 -07:00

generic_acl.c

New helper - current_umask()

2009-03-31 23:00:26 -04:00

inode.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-03-27 16:23:12 -07:00

internal.h

New locking/refcounting for fs_struct

2009-03-31 23:00:26 -04:00

ioctl.c

Rationalize fasync return values

2009-03-16 08:34:35 -06:00

ioprio.c

…

Kconfig

Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-fscache

2009-04-03 10:07:43 -07:00

Kconfig.binfmt

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libfs.c

vfs: simple_set_mnt() should return void

2009-03-27 14:44:03 -04:00

locks.c

…

Makefile

Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-fscache

2009-04-03 10:07:43 -07:00

mbcache.c

…

mpage.c

Remove two unneeded exports and make two symbols static in fs/mpage.c

2009-04-01 07:38:54 -04:00

namei.c

Get rid of indirect include of fs_struct.h

2009-03-31 23:00:27 -04:00

namespace.c

Get rid of indirect include of fs_struct.h

2009-03-31 23:00:27 -04:00

nfsctl.c

…

no-block.c

…

open.c

Get rid of indirect include of fs_struct.h

2009-03-31 23:00:27 -04:00

pipe.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2009-03-27 16:23:12 -07:00

pnode.c

…

pnode.h

…

posix_acl.c

…

read_write.c

preadv/pwritev: Add preadv and pwritev system calls.

2009-04-02 19:05:08 -07:00

read_write.h

…

readdir.c

…

select.c

…

seq_file.c

cpumask: fix seq_bitmap_*() functions.

2009-03-30 22:05:11 +10:30

signalfd.c

…

splice.c

FS-Cache: Recruit a page flags for cache management

2009-04-03 16:42:36 +01:00

stack.c

…

stat.c

…

super.c

CacheFiles: Export things for CacheFiles

2009-04-03 16:42:40 +01:00

sync.c

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6

2009-03-27 14:48:34 -07:00

timerfd.c

timerfd: add flags check

2009-02-18 15:37:53 -08:00

utimes.c

…

xattr_acl.c

…

xattr.c

…