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memcgroup: remove a useless VM_BUG_ON()

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Remove this VM_BUG_ON(), as Balbir stated:

We used to have a for loop with !list_empty() as a termination condition
and VM_BUG_ON(!pc) is a spill over.  With the new loop, VM_BUG_ON(!pc) does
not make sense.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Balbir Singh <balbir@in.ibm.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Li Zefan 2008-02-23 15:24:13 -08:00 committed by Linus Torvalds
parent 2324c5dd47
commit 7fde4c3eb7
1 changed files with 0 additions and 1 deletions
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mm/memcontrol.c
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@ -534,7 +534,6 @@ unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
if (scan >= nr_to_scan)
break;
page = pc->page;
VM_BUG_ON(!pc);
if (unlikely(!PageLRU(page)))
continue;