+ memcgroup-remove-a-useless-vm_bug_on.patch added to -mm tree

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The patch titled
     memcgroup: remove a useless VM_BUG_ON()
has been added to the -mm tree.  Its filename is
     memcgroup-remove-a-useless-vm_bug_on.patch

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*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: memcgroup: remove a useless VM_BUG_ON()
From: Li Zefan <lizf@xxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxx>
Acked-by: Balbir Singh <balbir@xxxxxxxxxx>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/memcontrol.c |    1 -
 1 file changed, 1 deletion(-)

diff -puN mm/memcontrol.c~memcgroup-remove-a-useless-vm_bug_on mm/memcontrol.c
--- a/mm/memcontrol.c~memcgroup-remove-a-useless-vm_bug_on
+++ a/mm/memcontrol.c
@@ -534,7 +534,6 @@ unsigned long mem_cgroup_isolate_pages(u
 		if (scan >= nr_to_scan)
 			break;
 		page = pc->page;
-		VM_BUG_ON(!pc);
 
 		if (unlikely(!PageLRU(page)))
 			continue;
_

Patches currently in -mm which might be from lizf@xxxxxxxxxxxxxx are

cgroup-fix-and-update-documentation.patch
cgroup-fix-comments.patch
cgroup-clean-up-cgrouph.patch
cgroup-fix-memory-leak-in-cgroup_get_sb.patch
cgroup-fix-subsys-bitops.patch
cgroup-remove-duplicate-code-in-find_css_set.patch
cgroup-remove-dead-code-in-cgroup_get_rootdir.patch
memcgroup-fix-and-update-documentation.patch
memcgroup-remove-a-useless-vm_bug_on.patch
memcgroup-return-negative-error-code-in-mem_cgroup_create.patch

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