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Subject[patch] oom: fix zone_scan_mutex name
zone_scan_mutex is actually a spinlock, so name it appropriately.

Signed-off-by: David Rientjes <rientjes@google.com>
---
mm/oom_kill.c | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -31,7 +31,7 @@
int sysctl_panic_on_oom;
int sysctl_oom_kill_allocating_task;
int sysctl_oom_dump_tasks;
-static DEFINE_SPINLOCK(zone_scan_mutex);
+static DEFINE_SPINLOCK(zone_scan_lock);
/* #define DEBUG */

/**
@@ -470,7 +470,7 @@ int try_set_zone_oom(struct zonelist *zonelist, gfp_t gfp_mask)
struct zone *zone;
int ret = 1;

- spin_lock(&zone_scan_mutex);
+ spin_lock(&zone_scan_lock);
for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask)) {
if (zone_is_oom_locked(zone)) {
ret = 0;
@@ -480,7 +480,7 @@ int try_set_zone_oom(struct zonelist *zonelist, gfp_t gfp_mask)

for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask)) {
/*
- * Lock each zone in the zonelist under zone_scan_mutex so a
+ * Lock each zone in the zonelist under zone_scan_lock so a
* parallel invocation of try_set_zone_oom() doesn't succeed
* when it shouldn't.
*/
@@ -488,7 +488,7 @@ int try_set_zone_oom(struct zonelist *zonelist, gfp_t gfp_mask)
}

out:
- spin_unlock(&zone_scan_mutex);
+ spin_unlock(&zone_scan_lock);
return ret;
}

@@ -502,11 +502,11 @@ void clear_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_mask)
struct zoneref *z;
struct zone *zone;

- spin_lock(&zone_scan_mutex);
+ spin_lock(&zone_scan_lock);
for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask)) {
zone_clear_flag(zone, ZONE_OOM_LOCKED);
}
- spin_unlock(&zone_scan_mutex);
+ spin_unlock(&zone_scan_lock);
}

/**

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