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oom: fix zone_scan_mutex name

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zone_scan_mutex is actually a spinlock, so name it appropriately.

Signed-off-by: David Rientjes <rientjes@google.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@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:
David Rientjes 2009-01-06 14:39:00 -08:00 • committed by Linus Torvalds
parent 1c0fe6e3bd
commit c7d4caeb1d
1 changed files with 6 additions and 6 deletions
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12
mm/oom_kill.c
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@ -31,7 +31,7 @@
int sysctl_panic_on_oom; int sysctl_panic_on_oom;
int sysctl_oom_kill_allocating_task; int sysctl_oom_kill_allocating_task;
int sysctl_oom_dump_tasks; int sysctl_oom_dump_tasks;
static DEFINE_SPINLOCK(zone_scan_mutex); static DEFINE_SPINLOCK(zone_scan_lock);
/* #define DEBUG */ /* #define DEBUG */
/** /**
@ -470,7 +470,7 @@ int try_set_zone_oom(struct zonelist *zonelist, gfp_t gfp_mask)
struct zone *zone; struct zone *zone;
int ret = 1; int ret = 1;
spin_lock(&zone_scan_mutex); spin_lock(&zone_scan_lock);
for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask)) { for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask)) {
if (zone_is_oom_locked(zone)) { if (zone_is_oom_locked(zone)) {
ret = 0; 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)) { 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 * parallel invocation of try_set_zone_oom() doesn't succeed
* when it shouldn't. * when it shouldn't.
*/ */
@ -488,7 +488,7 @@ int try_set_zone_oom(struct zonelist *zonelist, gfp_t gfp_mask)
} }
out: out:
spin_unlock(&zone_scan_mutex); spin_unlock(&zone_scan_lock);
return ret; return ret;
} }
@ -502,11 +502,11 @@ void clear_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_mask)
struct zoneref *z; struct zoneref *z;
struct zone *zone; struct zone *zone;
spin_lock(&zone_scan_mutex); spin_lock(&zone_scan_lock);
for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask)) { for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask)) {
zone_clear_flag(zone, ZONE_OOM_LOCKED); zone_clear_flag(zone, ZONE_OOM_LOCKED);
} }
spin_unlock(&zone_scan_mutex); spin_unlock(&zone_scan_lock);
} }
/* /*