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mm: rename try_set_zone_oom() to try_set_zonelist_oom()

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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.

Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: David Rientjes <rientjes@google.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Minchan Kim 2010-08-09 17:18:57 -07:00 committed by Linus Torvalds
parent b940fd7035
commit ff321feac2
3 changed files with 4 additions and 4 deletions
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2
include/linux/oom.h
View File

@ -25,7 +25,7 @@ enum oom_constraint {
CONSTRAINT_MEMCG,
};
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,

4
mm/oom_kill.c
View File

@ -549,7 +549,7 @@ 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;
@ -566,7 +566,7 @@ 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);

2
mm/page_alloc.c
View File

@ -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)) {
schedule_timeout_uninterruptible(1);
return NULL;
}