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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-24 15:16:49 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-24 15:16:49 -0400
commit4923abf9f1a4c1864af438a57c1f3686548230e9 (patch)
treecbe9762f552478ce0c2a68728b45d0c604822882 /mm
parentc82e6d450fda56cb2d4f68534173d3cd11b32f9f (diff)
Don't warn about order-1 allocations with __GFP_NOFAIL
Traditionally, we never failed small orders (even regardless of any __GFP_NOFAIL flags), and slab will allocate order-1 allocations even for small allocations that could fit in a single page (in order to avoid excessive fragmentation). Maybe we should remove this warning entirely, but before making that judgement, at least limit it to bigger allocations. Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/page_alloc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index aecc9cdfdfce..5d714f8fb303 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1153,10 +1153,10 @@ again:
1153 * properly detect and handle allocation failures. 1153 * properly detect and handle allocation failures.
1154 * 1154 *
1155 * We most definitely don't want callers attempting to 1155 * We most definitely don't want callers attempting to
1156 * allocate greater than single-page units with 1156 * allocate greater than order-1 page units with
1157 * __GFP_NOFAIL. 1157 * __GFP_NOFAIL.
1158 */ 1158 */
1159 WARN_ON_ONCE(order > 0); 1159 WARN_ON_ONCE(order > 1);
1160 } 1160 }
1161 spin_lock_irqsave(&zone->lock, flags); 1161 spin_lock_irqsave(&zone->lock, flags);
1162 page = __rmqueue(zone, order, migratetype); 1162 page = __rmqueue(zone, order, migratetype);