the lru_lock of struct mem_group_per_zone is used to avoid preemption
during the __mem_cgroup_stat_add_safe function.
therefore, a raw_spinlock_t should be used.
Signed-off-by: Tim Blechmann <tim@xxxxxxxxxx>
---
mm/memcontrol.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 517f945..8661732 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -95,9 +95,9 @@ enum mem_cgroup_zstat_index {
struct mem_cgroup_per_zone {
/*
- * spin_lock to protect the per cgroup LRU
+ * raw_spin_lock to protect the per cgroup LRU
*/
- spinlock_t lru_lock;
+ raw_spinlock_t lru_lock;
struct list_head active_list;
struct list_head inactive_list;
unsigned long count[NR_MEM_CGROUP_ZSTAT];
--
1.5.6.3
--
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