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| author | Johannes Weiner | 2016-07-27 00:27:01 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2016-07-27 01:19:19 +0200 |
| commit | cb773df88a737d7d7e05ca7ca516414d3fcdcab8 (patch) | |
| tree | c5115d320c993dbfb26f3948460df3c6d4720e27 /mm/huge_memory.c | |
| parent | cgroup: fix idr leak for the first cgroup root (diff) | |
| download | kernel-qcow2-linux-cb773df88a737d7d7e05ca7ca516414d3fcdcab8.tar.gz kernel-qcow2-linux-cb773df88a737d7d7e05ca7ca516414d3fcdcab8.tar.xz kernel-qcow2-linux-cb773df88a737d7d7e05ca7ca516414d3fcdcab8.zip | |
cgroup: remove unnecessary 0 check from css_from_id()
css_idr allocation starts at 1, so index 0 will never point to an item.
css_from_id() currently filters that before asking idr_find(), but
idr_find() would also just return NULL, so this is not needed.
Link: http://lkml.kernel.org/r/20160617162427.GC19084@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/huge_memory.c')
0 files changed, 0 insertions, 0 deletions