forked from Minki/linux
Avoid double memclear() in SLOB/SLUB
Both slob and slub react to __GFP_ZERO by clearing the allocation, which means that passing the GFP_ZERO bit down to the page allocator is just wasteful and pointless. Acked-by: Matt Mackall <mpm@selenic.com> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> 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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/* Not enough space: must allocate a new page */
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/* Not enough space: must allocate a new page */
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if (!b) {
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if (!b) {
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b = slob_new_page(gfp, 0, node);
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b = slob_new_page(gfp & ~__GFP_ZERO, 0, node);
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if (!b)
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if (!b)
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return 0;
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return 0;
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sp = (struct slob_page *)virt_to_page(b);
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sp = (struct slob_page *)virt_to_page(b);
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