renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-16 09:13:55 +08:00
Code

mm: memcontrol: remove bogus NULL check after mem_cgroup_from_task()

Browse Source 
That function acts like a typecast - unless NULL is passed in, no NULL can
come out.  task_in_mem_cgroup() callers don't pass NULL tasks.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johannes Weiner 2014-12-10 15:44:27 -08:00 committed by Linus Torvalds
parent 312722cbb2
commit c01f46c7c7
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
mm/memcontrol.c
View File

@ -1356,7 +1356,7 @@ static bool mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
bool task_in_mem_cgroup(struct task_struct *task,
const struct mem_cgroup *memcg)
{
struct mem_cgroup *curr = NULL;
struct mem_cgroup *curr;
struct task_struct *p;
bool ret;
@ -1372,7 +1372,6 @@ bool task_in_mem_cgroup(struct task_struct *task,
*/
rcu_read_lock();
curr = mem_cgroup_from_task(task);
if (curr)
css_get(&curr->css);
rcu_read_unlock();
}