1 files changed, 5 insertions, 5 deletions

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 183a964ca61b..a64decb5b13f 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -28,7 +28,7 @@
 
 int sysctl_panic_on_oom;
 int sysctl_oom_kill_allocating_task;
-static DEFINE_MUTEX(zone_scan_mutex);
+static DEFINE_SPINLOCK(zone_scan_mutex);
 /* #define DEBUG */
 
 /**
@@ -396,7 +396,7 @@ int try_set_zone_oom(struct zonelist *zonelist)
 
         z = zonelist->zones;
 
-        mutex_lock(&zone_scan_mutex);
+        spin_lock(&zone_scan_mutex);
         do {
                 if (zone_is_oom_locked(*z)) {
                         ret = 0;
@@ -413,7 +413,7 @@ int try_set_zone_oom(struct zonelist *zonelist)
                 zone_set_flag(*z, ZONE_OOM_LOCKED);
         } while (*(++z) != NULL);
 out:
-        mutex_unlock(&zone_scan_mutex);
+        spin_unlock(&zone_scan_mutex);
         return ret;
 }
 
@@ -428,11 +428,11 @@ void clear_zonelist_oom(struct zonelist *zonelist)
 
         z = zonelist->zones;
 
-        mutex_lock(&zone_scan_mutex);
+        spin_lock(&zone_scan_mutex);
         do {
                 zone_clear_flag(*z, ZONE_OOM_LOCKED);
         } while (*(++z) != NULL);
-        mutex_unlock(&zone_scan_mutex);
+        spin_unlock(&zone_scan_mutex);
 }
 
 /**