From: Minchan Kim on
We have been used naming try_set_zone_oom and clear_zonelist_oom.
The role of functions is to lock of zonelist for preventing parallel
OOM. So clear_zonelist_oom makes sense but try_set_zone_oome is rather
awkward and unmatched with clear_zonelist_oom.

Let's change it with try_set_zonelist_oom.

Cc: David Rientjes <rientjes(a)>
Cc: KOSAKI Motohiro <kosaki.motohiro(a)>
Let's change it with try_set_zonelist_oom.

Signed-off-by: Minchan Kim <>
include/linux/oom.h | 2 +-
mm/oom_kill.c | 4 ++--
mm/page_alloc.c | 2 +-
3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/oom.h b/include/linux/oom.h
index 5376623..2e4b90b 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -24,7 +24,7 @@ enum oom_constraint {

-extern int try_set_zone_oom(struct zonelist *zonelist, gfp_t gfp_flags);
+extern int try_set_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_flags);
extern void clear_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_flags);

extern void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 709aedf..84840f3 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -509,7 +509,7 @@ EXPORT_SYMBOL_GPL(unregister_oom_notifier);
* if a parallel OOM killing is already taking place that includes a zone in
* the zonelist. Otherwise, locks all zones in the zonelist and returns 1.
-int try_set_zone_oom(struct zonelist *zonelist, gfp_t gfp_mask)
+int try_set_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_mask)
struct zoneref *z;
struct zone *zone;
@@ -526,7 +526,7 @@ 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_lock so a
- * parallel invocation of try_set_zone_oom() doesn't succeed
+ * parallel invocation of try_set_zonelist_oom() doesn't succeed
* when it shouldn't.
zone_set_flag(zone, ZONE_OOM_LOCKED);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 431214b..492c200 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1738,7 +1738,7 @@ __alloc_pages_may_oom(gfp_t gfp_mask, unsigned int order,
struct page *page;

/* Acquire the OOM killer lock for the zones in zonelist */
- if (!try_set_zone_oom(zonelist, gfp_mask)) {
+ if (!try_set_zonelist_oom(zonelist, gfp_mask)) {
return NULL;

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