* [PATCH] mm/slob: remove an unnecessary check for __GFP_ZERO
@ 2017-10-05 11:32 miles.chen
0 siblings, 0 replies; only message in thread
From: miles.chen @ 2017-10-05 11:32 UTC (permalink / raw)
To: Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim,
Andrew Morton
Cc: linux-kernel, linux-mm, wsd_upstream, linux-mediatek, Miles Chen
From: Miles Chen <miles.chen@mediatek.com>
Current flow guarantees a valid pointer when handling
the __GFP_ZERO case. So remove the unnecessary NULL pointer
check.
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
---
mm/slob.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/slob.c b/mm/slob.c
index a8bd6fa..a72649c 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -329,7 +329,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
BUG_ON(!b);
spin_unlock_irqrestore(&slob_lock, flags);
}
- if (unlikely((gfp & __GFP_ZERO) && b))
+ if (unlikely(gfp & __GFP_ZERO))
memset(b, 0, size);
return b;
}
--
1.9.1
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