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@mediatek.com Signed-off-by: Miles Chen <miles.chen@mediatek.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -330,7 +330,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
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BUG_ON(!b);
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BUG_ON(!b);
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spin_unlock_irqrestore(&slob_lock, flags);
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spin_unlock_irqrestore(&slob_lock, flags);
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}
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}
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if (unlikely((gfp & __GFP_ZERO) && b))
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if (unlikely(gfp & __GFP_ZERO))
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memset(b, 0, size);
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memset(b, 0, size);
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return b;
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return b;
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}
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}
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