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| author |   Li Zefan <lizf@cn.fujitsu.com> | 2009-01-07 18:07:33 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-08 08:31:01 -0800 |
| commit | 75139b8274c3e30354daea623f14b43a482a0bb5 (patch) | |
| tree | 0da75602e260cd565d9f8c03d789744448966171 /kernel/ns_cgroup.c | |
| parent | cgroups: documentation updates (diff) | |
| download | linux-dev-75139b8274c3e30354daea623f14b43a482a0bb5.tar.xz linux-dev-75139b8274c3e30354daea623f14b43a482a0bb5.zip | |
cgroups: remove some redundant NULL checks
- In cgroup_clone(), if vfs_mkdir() returns successfully,
dentry->d_fsdata will be the pointer to the newly created
cgroup and won't be NULL.
- a cgroup file's dentry->d_fsdata won't be NULL, guaranteed
by cgroup_add_file().
- When walking through the subsystems of a cgroup_fs (using
for_each_subsys), cgrp->subsys[ss->subsys_id] won't be NULL,
guaranteed by cgroup_create().
(Also remove 2 unused variables in cgroup_rmdir().
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/ns_cgroup.c')
0 files changed, 0 insertions, 0 deletions