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| author | Arnd Bergmann <arnd@arndb.de> | 2012-02-27 21:59:05 +0400 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-02-27 21:59:11 +0400 |
| commit | a0008bf73c12212769b0d0b19cdec5c432de94ba (patch) | |
| tree | e53c67efd4aad97ab9f2addc1fc0d62879b41c55 /mm/memcontrol.c | |
| parent | 5a8c271b26b83a09924c99aaa5c607021aed142b (diff) | |
| parent | cfac337b0fbcad5181096ab72bb24a05bd444562 (diff) | |
| download | linux-a0008bf73c12212769b0d0b19cdec5c432de94ba.tar.xz | |
Merge branch 'lpc32xx/fixes-non-critical' of git://git.antcom.de/linux-2.6 into next/fixes-non-critical
* 'lpc32xx/fixes-non-critical' of git://git.antcom.de/linux-2.6: (1 commit)
ARM: LPC32xx: Fix missing and bad LPC32XX macros
Update to Linux 3.3-rc5
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 6728a7ae6f2d..228d6461c12a 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -4414,6 +4414,9 @@ static void mem_cgroup_usage_unregister_event(struct cgroup *cgrp, */ BUG_ON(!thresholds); + if (!thresholds->primary) + goto unlock; + usage = mem_cgroup_usage(memcg, type == _MEMSWAP); /* Check if a threshold crossed before removing */ @@ -4462,7 +4465,7 @@ swap_buffers: /* To be sure that nobody uses thresholds */ synchronize_rcu(); - +unlock: mutex_unlock(&memcg->thresholds_lock); } |