mm, page_alloc: remove unnecessary initialisation from __alloc_pages_nodemask()
page is guaranteed to be set before it is read with or without the
initialisation.
[akpm@linux-foundation.org: fix warning]
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 1096ac8..f9ca6cc 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3347,7 +3347,7 @@
struct zonelist *zonelist, nodemask_t *nodemask)
{
struct zoneref *preferred_zoneref;
- struct page *page = NULL;
+ struct page *page;
unsigned int cpuset_mems_cookie;
unsigned int alloc_flags = ALLOC_WMARK_LOW|ALLOC_FAIR;
gfp_t alloc_mask; /* The gfp_t that was actually used for allocation */
@@ -3393,8 +3393,11 @@
/* The preferred zone is used for statistics later */
preferred_zoneref = first_zones_zonelist(ac.zonelist, ac.high_zoneidx,
ac.nodemask, &ac.preferred_zone);
- if (!ac.preferred_zone)
+ if (!ac.preferred_zone) {
+ page = NULL;
goto out;
+ }
+
ac.classzone_idx = zonelist_zone_idx(preferred_zoneref);
/* First allocation attempt */