linux

Files

Jaegeuk Kim 393ff91f57 f2fs: reduce unncessary locking pages during read

This patch reduces redundant locking and unlocking pages during read operations.
In f2fs_readpage, let's use wait_on_page_locked() instead of lock_page.
And then, when we need to modify any data finally, let's lock the page so that
we can avoid lock contention.

[readpage rule]
- The f2fs_readpage returns unlocked page, or released page too in error cases.
- Its caller should handle read error, -EIO, after locking the page, which
  indicates read completion.
- Its caller should check PageUptodate after grab_cache_page.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Reviewed-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

2013-03-20 18:30:06 +09:00

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

2013-03-03 13:23:03 -08:00

adfs

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

2013-02-26 20:16:07 -08:00

affs

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

afs

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

2013-02-26 20:16:07 -08:00

autofs4

autofs4 - autofs4_catatonic_mode(): remove redundant null check on kfree()

2013-03-01 12:04:39 -08:00

befs

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

2013-02-26 20:16:07 -08:00

bfs

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

2013-02-26 20:16:07 -08:00

btrfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2013-03-03 13:13:20 -08:00

cachefiles

FS-Cache: Mark cancellation of in-progress operation

2012-12-20 22:34:00 +00:00

ceph

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2013-02-28 17:43:09 -08:00

cifs

Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

2013-03-01 12:05:13 -08:00

coda

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

2013-02-26 20:16:07 -08:00

configfs

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

2013-02-26 20:16:07 -08:00

cramfs

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

debugfs

Merge 3.9-rc4 into driver-core-next

2013-01-17 19:48:18 -08:00

devpts

userns: Allow the userns root to mount of devpts

2013-01-26 22:22:21 -08:00

dlm

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

ecryptfs

Merge tag 'ecryptfs-3.9-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs

2013-03-07 12:47:24 -08:00

efs

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

2013-02-26 20:16:07 -08:00

exofs

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

exportfs

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

ext2

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

2013-02-26 20:16:07 -08:00

ext3

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

2013-02-26 20:16:07 -08:00

ext4

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

2013-03-03 13:23:03 -08:00

f2fs

f2fs: reduce unncessary locking pages during read

2013-03-20 18:30:06 +09:00

fat

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

freevxfs

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

fscache

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

fuse

more file_inode() open-coded instances

2013-02-27 16:59:05 -05:00

gfs2

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

2013-02-26 20:16:07 -08:00

hfs

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

2013-02-26 20:16:07 -08:00

hfsplus

hfsplus: fix issue with unzeroed unused b-tree nodes

2013-02-27 19:10:10 -08:00

hostfs

hostfs: directory methods have no business in non-directory inode_operations

2013-02-22 23:31:37 -05:00

hpfs

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

2013-02-26 20:16:07 -08:00

hppfs

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

hugetlbfs

hugetlb_file_setup(): use d_alloc_pseudo()

2013-02-26 02:45:52 -05:00

isofs

fs: encode_fh: return FILEID_INVALID if invalid fid_type

2013-02-26 02:46:10 -05:00

jbd

jbd: don't wake kjournald unnecessarily

2013-01-14 22:50:45 +01:00

jbd2

jbd2: fix ERR_PTR dereference in jbd2__journal_start

2013-03-02 17:08:46 -05:00

jffs2

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

2013-02-26 20:16:07 -08:00

jfs

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

2013-02-26 20:16:07 -08:00

lockd

Merge branch 'for-3.9' of git://linux-nfs.org/~bfields/linux

2013-02-28 18:02:55 -08:00

logfs

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

2013-02-26 20:16:07 -08:00

minix

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

ncpfs

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

2013-02-26 20:16:07 -08:00

nfs

Merge tag 'nfs-for-3.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

2013-03-02 16:46:07 -08:00

nfs_common

nfs_common: Update the translation between nfsv3 acls linux posix acls

2013-02-13 06:15:14 -08:00

nfsd

Merge branch 'for-3.9' of git://linux-nfs.org/~bfields/linux

2013-02-28 18:02:55 -08:00

nilfs2

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

2013-02-26 20:16:07 -08:00

nls

…

notify

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

ntfs

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

ocfs2

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

omfs

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

openpromfs

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

proc

fs/proc/vmcore.c: put if tests in the top of the while loop to reduce duplication

2013-02-27 19:10:11 -08:00

pstore

Merge tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

2013-02-21 09:38:18 -08:00

qnx4

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

qnx6

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

2013-02-26 20:16:07 -08:00

quota

quota: Use the pre-processor to compile out quotactl_cmd_write when !CONFIG_BLOCK

2012-12-13 16:33:24 +01:00

ramfs

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

2013-02-26 20:16:07 -08:00

reiserfs

fs: encode_fh: return FILEID_INVALID if invalid fid_type

2013-02-26 02:46:10 -05:00

romfs

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

squashfs

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

sysfs

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

sysv

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

ubifs

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

2013-02-26 20:16:07 -08:00

udf

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

2013-02-26 20:16:07 -08:00

ufs

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

2013-02-26 20:16:07 -08:00

xfs

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

aio.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

anon_inodes.c

get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero

2013-02-26 02:46:11 -05:00

attr.c

userns: Allow chown and setgid preservation

2012-11-20 04:17:24 -08:00

bad_inode.c

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

binfmt_aout.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

binfmt_elf_fdpic.c

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

2013-02-26 20:16:07 -08:00

binfmt_elf.c

Merge tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag

2013-03-03 12:06:09 -08:00

binfmt_em86.c

exec: use -ELOOP for max recursion depth

2012-12-17 17:15:23 -08:00

binfmt_flat.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

binfmt_misc.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

binfmt_script.c

exec: do not leave bprm->interp on stack

2012-12-20 17:40:19 -08:00

binfmt_som.c

get rid of pt_regs argument of ->load_binary()

2012-11-28 21:53:38 -05:00

bio-integrity.c

…

bio.c

block: add missing block_bio_complete() tracepoint

2013-01-14 15:00:36 +01:00

block_dev.c

Merge branch 'for-3.9/core' of git://git.kernel.dk/linux-block

2013-02-28 12:52:24 -08:00

buffer.c

Merge branch 'for-3.9/core' of git://git.kernel.dk/linux-block

2013-02-28 12:52:24 -08:00

char_dev.c

…

compat_binfmt_elf.c

…

compat_ioctl.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

compat.c

switch timerfd compat syscalls to COMPAT_SYSCALL_DEFINE

2013-02-03 15:09:25 -05:00

coredump.c

coredump: remove redundant defines for dumpable states

2013-02-27 19:10:11 -08:00

coredump.h

…

dcache.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

dcookies.c

…

direct-io.c

fs: Fix possible use-after-free with AIO

2013-02-22 23:31:36 -05:00

drop_caches.c

…

eventfd.c

fs, eventfd: add procfs fdinfo helper

2012-12-17 17:15:27 -08:00

eventpoll.c

epoll: prevent missed events on EPOLL_CTL_MOD

2013-01-02 09:16:43 -08:00

exec.c

coredump: remove redundant defines for dumpable states

2013-02-27 19:10:11 -08:00

fcntl.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

fhandle.c

Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux

2012-12-20 14:04:11 -08:00

fifo.c

…

file_table.c

cache the value of file_inode() in struct file

2013-03-01 19:48:30 -05:00

file.c

locking: Various static lock initializer fixes

2013-02-19 08:42:45 +01:00

filesystems.c

…

fs_struct.c

constify path_get/path_put and fs_struct.c stuff

2013-03-01 23:51:07 -05:00

fs-writeback.c

Merge tag 'writeback-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux

2013-02-28 13:21:44 -08:00

generic_acl.c

…

inode.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

internal.h

constify path_get/path_put and fs_struct.c stuff

2013-03-01 23:51:07 -05:00

ioctl.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

ioprio.c

…

Kconfig

fuse: Move CUSE Kconfig entry from fs/Kconfig into fs/fuse/Kconfig

2013-01-17 13:08:45 +01:00

Kconfig.binfmt

…

libfs.c

vfs: drop vmtruncate

2012-12-20 18:46:29 -05:00

locks.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

Makefile

f2fs: update Kconfig and Makefile

2012-12-11 13:43:42 +09:00

mbcache.c

…

mount.h

proc: Usable inode numbers for the namespace file descriptors.

2012-11-20 04:19:49 -08:00

mpage.c

…

namei.c

constify path_get/path_put and fs_struct.c stuff

2013-03-01 23:51:07 -05:00

namespace.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

no-block.c

…

open.c

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

2013-03-03 13:23:03 -08:00

pipe.c

fs: Preserve error code in get_empty_filp(), part 2

2013-02-22 23:31:32 -05:00

pnode.c

…

pnode.h

vfs: Only support slave subtrees across different user namespaces

2012-11-19 05:59:20 -08:00

posix_acl.c

…

proc_namespace.c

…

read_write.c

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

2013-03-02 08:34:06 -08:00

read_write.h

…

readdir.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

select.c

sched/rt: Move rt specific bits into new header file

2013-02-07 20:51:08 +01:00

seq_file.c

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

2013-03-03 13:23:03 -08:00

signalfd.c

fs, epoll: add procfs fdinfo helper

2012-12-17 17:15:27 -08:00

splice.c

export kernel_write(), convert open-coded instances

2013-02-26 02:46:11 -05:00

stack.c

…

stat.c

switch vfs_getattr() to struct path

2013-02-26 02:46:08 -05:00

statfs.c

vfs: fix user_statfs to retry once on ESTALE errors

2012-12-20 18:50:07 -05:00

super.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

sync.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

timerfd.c

compat: restore timerfd settime and gettime compat syscalls

2013-03-02 09:35:13 -05:00

utimes.c

vfs: allow utimensat() calls to retry once on an ESTALE error

2012-12-20 18:50:08 -05:00

xattr_acl.c

…

xattr.c

vfs: make lremovexattr retry once on ESTALE error

2012-12-20 18:50:11 -05:00