Pavel Emelianov b5e618181a Introduce a handy list_first_entry macro ...

There are many places in the kernel where the construction like

   foo = list_entry(head->next, struct foo_struct, list);

are used.
The code might look more descriptive and neat if using the macro

   list_first_entry(head, type, member) \
             list_entry((head)->next, type, member)

Here is the macro itself and the examples of its usage in the generic code.
 If it will turn out to be useful, I can prepare the set of patches to
inject in into arch-specific code, drivers, networking, etc.

Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Signed-off-by: Kirill Korotaev <dev@openvz.org>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Zach Brown <zach.brown@oracle.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: John McCutchan <ttb@tentacle.dhs.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2007-05-08 11:15:11 -07:00

..

9p

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

adfs

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

affs

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

afs

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

autofs

[PATCH] Mark struct super_operations const

2007-02-12 09:48:47 -08:00

autofs4

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

befs

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

bfs

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

cifs

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

coda

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

configfs

remove "struct subsystem" as it is no longer needed

2007-05-02 18:57:59 -07:00

cramfs

mm: make read_cache_page synchronous

2007-05-07 12:12:51 -07:00

debugfs

remove "struct subsystem" as it is no longer needed

2007-05-02 18:57:59 -07:00

devpts

devpts: add fsnotify create event

2007-05-08 11:14:59 -07:00

dlm

Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw

2007-05-07 12:26:27 -07:00

ecryptfs

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

efs

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

exportfs

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

ext2

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

ext3

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

ext4

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

fat

is_power_of_2 in fat

2007-05-08 11:14:59 -07:00

freevxfs

freevxfs: possible null pointer dereference fix

2007-05-08 11:14:59 -07:00

fuse

add filesystem subtype support

2007-05-08 11:15:01 -07:00

gfs2

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

hfs

is_power_of_2 in fs/hfs

2007-05-08 11:14:59 -07:00

hfsplus

is_power_of_2 in fs/hfs

2007-05-08 11:14:59 -07:00

hostfs

uml: hostfs style fixes

2007-05-08 11:14:57 -07:00

hpfs

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

hppfs

[PATCH] Mark struct super_operations const

2007-02-12 09:48:47 -08:00

hugetlbfs

hugetlbfs: add NULL check in hugetlb_zero_setup()

2007-05-07 12:12:57 -07:00

isofs

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

jbd

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

jbd2

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

jffs2

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

jfs

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

lockd

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

minix

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

msdos

[PATCH] mark struct inode_operations const 2

2007-02-12 09:48:46 -08:00

ncpfs

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

nfs

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

nfs_common

[PATCH] nfs_common endianness annotations

2006-10-20 10:26:41 -07:00

nfsd

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

nls

[PATCH] fs: make nls_cp936.c handle some U00XY characters and U20AC correctly

2006-12-07 08:39:46 -08:00

ntfs

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

ocfs2

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

openpromfs

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

partitions

partition: add support for sysv68 partitions

2007-05-08 11:15:09 -07:00

proc

Remove redundant check from proc_sys_setattr()

2007-05-08 11:15:10 -07:00

qnx4

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

ramfs

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

reiserfs

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

romfs

slab allocators: Remove SLAB_DEBUG_INITIAL flag

2007-05-07 12:12:57 -07:00

smbfs

smbfs: remove unnecessary allow_signal

2007-05-08 11:15:11 -07:00

sysfs

remove "struct subsystem" as it is no longer needed

2007-05-02 18:57:59 -07:00

sysv

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

udf

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

ufs

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

vfat

[PATCH] mark struct inode_operations const 3

2007-02-12 09:48:46 -08:00

xfs

mm: move common segment checks to separate helper function

2007-05-08 11:14:57 -07:00

aio.c

KMEM_CACHE(): simplify slab cache creation

2007-05-07 12:12:55 -07:00

attr.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

bad_inode.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

binfmt_aout.c

[PATCH] VFS: change struct file to use struct path

2006-12-08 08:28:41 -08:00

binfmt_elf_fdpic.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

binfmt_elf.c

i386: sched.h inclusion from module.h is baack

2007-05-08 11:15:08 -07:00

binfmt_em86.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

binfmt_flat.c

[PATCH] uclinux: correctly remap bin_fmtflat exe allocated mem regions

2007-02-09 10:45:33 -08:00

binfmt_misc.c

[PATCH] Mark struct super_operations const

2007-02-12 09:48:47 -08:00

binfmt_script.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

binfmt_som.c

[PARISC] Fix fs/binfmt_som.c

2006-10-04 06:51:26 -06:00

bio.c

KMEM_CACHE(): simplify slab cache creation

2007-05-07 12:12:55 -07:00

block_dev.c

is_power_of_2 in fs/block_dev.c

2007-05-08 11:14:59 -07:00

buffer.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

char_dev.c

[PATCH] remove protection of LANANA-reserved majors

2007-04-04 21:12:47 -07:00

compat_ioctl.c

cleanup compat ioctl handling

2007-05-08 11:15:09 -07:00

compat.c

cleanup compat ioctl handling

2007-05-08 11:15:09 -07:00

dcache.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

dcookies.c

[PATCH] slab: remove kmem_cache_t

2006-12-07 08:39:25 -08:00

direct-io.c

[PATCH] dio: lock refcount operations

2006-12-10 09:57:21 -08:00

dnotify.c

[PATCH] VFS: change struct file to use struct path

2006-12-08 08:28:41 -08:00

dquot.c

Introduce a handy list_first_entry macro

2007-05-08 11:15:11 -07:00

drop_caches.c

[PATCH] remove invalidate_inode_pages()

2007-02-11 10:51:31 -08:00

eventpoll.c

Introduce a handy list_first_entry macro

2007-05-08 11:15:11 -07:00

exec.c

(re)register_binfmt returns with -EBUSY

2007-05-08 11:15:08 -07:00

fcntl.c

[PATCH] fdtable: Make fdarray and fdsets equal in size

2006-12-10 09:57:22 -08:00

fifo.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

file_table.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

file.c

[PATCH] fdtable: Provide free_fdtable() wrapper

2006-12-22 08:55:50 -08:00

filesystems.c

add filesystem subtype support

2007-05-08 11:15:01 -07:00

fs-writeback.c

Write back inode data pages even when the inode itself is locked

2007-01-26 12:53:20 -08:00

generic_acl.c

[PATCH] Generic infrastructure for acls

2006-09-29 09:18:24 -07:00

inode.c

Introduce a handy list_first_entry macro

2007-05-08 11:15:11 -07:00

inotify_user.c

[PATCH] inotify: read return val fix

2007-02-12 09:48:28 -08:00

inotify.c

Introduce a handy list_first_entry macro

2007-05-08 11:15:11 -07:00

internal.h

cleanup compat ioctl handling

2007-05-08 11:15:09 -07:00

ioctl.c

vfs: remove superflous sb == NULL checks

2007-05-08 11:15:02 -07:00

ioprio.c

[PATCH] pid: replace do/while_each_task_pid with do/while_each_pid_task

2007-02-12 09:48:32 -08:00

Kconfig

reiserfs: proc support requires PROC_FS

2007-05-08 11:15:04 -07:00

Kconfig.binfmt

blackfin architecture

2007-05-07 12:12:58 -07:00

libfs.c

[PATCH] shmem and simple const super_operations

2007-03-05 07:57:51 -08:00

locks.c

Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux

2007-05-07 12:34:24 -07:00

Makefile

Remove JFFS (version 1), as scheduled.

2007-02-17 16:10:59 -05:00

mbcache.c

[PATCH] slab: remove kmem_cache_t

2006-12-07 08:39:25 -08:00

mpage.c

Factor outstanding I/O error handling

2007-05-08 11:14:57 -07:00

namei.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

namespace.c

Introduce a handy list_first_entry macro

2007-05-08 11:15:11 -07:00

nfsctl.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

no-block.c

[PATCH] BLOCK: Make it possible to disable the block layer [try #6]

2006-09-30 20:52:31 +02:00

open.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

pipe.c

VFS: delay the dentry name generation on sockets and pipes

2007-05-08 11:15:03 -07:00

pnode.c

Introduce a handy list_first_entry macro

2007-05-08 11:15:11 -07:00

pnode.h

[PATCH] rename struct namespace to struct mnt_namespace

2006-12-08 08:28:51 -08:00

posix_acl.c

[PATCH] kmemdup: some users

2006-10-01 00:39:19 -07:00

quota_v1.c

…

quota_v2.c

[PATCH] sem2mutex: quota

2006-03-23 07:38:11 -08:00

quota.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

read_write.c

use use SEEK_MAX to validate user lseek arguments

2007-05-08 11:14:59 -07:00

read_write.h

[PATCH] Remove readv/writev methods and use aio_read/aio_write instead

2006-10-01 00:39:28 -07:00

readdir.c

ROUND_UP macro cleanup in fs/(select|compat|readdir).c

2007-05-08 11:15:09 -07:00

select.c

ROUND_UP macro cleanup in fs/(select|compat|readdir).c

2007-05-08 11:15:09 -07:00

seq_file.c

[PATCH] VFS: change struct file to use struct path

2006-12-08 08:28:41 -08:00

splice.c

[PATCH] splice: partial write fix

2007-03-29 14:26:42 +02:00

stack.c

[PATCH] fs/stack.c: Copy i_nlink after all other attributes are copied

2007-02-19 14:21:50 -08:00

stat.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

super.c

add filesystem subtype support

2007-05-08 11:15:01 -07:00

sync.c

Remove do_sync_file_range()

2007-05-08 11:15:04 -07:00

utimes.c

[PATCH] severing fs.h, radix-tree.h -> sched.h

2006-12-04 02:00:24 -05:00

xattr_acl.c

[PATCH] remove many unneeded #includes of sched.h

2007-02-14 08:09:54 -08:00

xattr.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00