The patch titled
Subject: mm/slob.c: remove an unnecessary check for __GFP_ZERO
has been added to the -mm tree. Its filename is
mm-slob-remove-an-unnecessary-check-for-__gfp_zero.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-slob-remove-an-unnecessary-check-for-__gfp_zero.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-slob-remove-an-unnecessary-check-for-__gfp_zero.patch
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The -mm tree is included into linux-next and is updated
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------------------------------------------------------
From: Miles Chen <miles.chen@xxxxxxxxxxxx>
Subject: mm/slob.c: remove an unnecessary check for __GFP_ZERO
Current flow guarantees a valid pointer when handling the __GFP_ZERO case.
So remove the unnecessary NULL pointer check.
Link: http://lkml.kernel.org/r/1507203141-11959-1-git-send-email-miles.chen@xxxxxxxxxxxx
Signed-off-by: Miles Chen <miles.chen@xxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slob.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/slob.c~mm-slob-remove-an-unnecessary-check-for-__gfp_zero mm/slob.c
--- a/mm/slob.c~mm-slob-remove-an-unnecessary-check-for-__gfp_zero
+++ a/mm/slob.c
@@ -329,7 +329,7 @@ static void *slob_alloc(size_t size, gfp
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;
}
_
Patches currently in -mm which might be from miles.chen@xxxxxxxxxxxx are
dma-debug-fix-incorrect-pfn-calculation.patch
mm-slob-remove-an-unnecessary-check-for-__gfp_zero.patch
checkpatch-support-function-pointers-for-unnamed-function-definition-arguments.patch
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