forked from luck/tmp_suning_uos_patched
Slab allocators: remove useless __GFP_NO_GROW flag
There is no user remaining and I have never seen any use of that flag. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -40,7 +40,6 @@ struct vm_area_struct;
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#define __GFP_REPEAT ((__force gfp_t)0x400u) /* Retry the allocation. Might fail */
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#define __GFP_NOFAIL ((__force gfp_t)0x800u) /* Retry for ever. Cannot fail */
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#define __GFP_NORETRY ((__force gfp_t)0x1000u)/* Do not retry. Might fail */
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#define __GFP_NO_GROW ((__force gfp_t)0x2000u)/* Slab internal usage */
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#define __GFP_COMP ((__force gfp_t)0x4000u)/* Add compound page metadata */
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#define __GFP_ZERO ((__force gfp_t)0x8000u)/* Return zeroed page on success */
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#define __GFP_NOMEMALLOC ((__force gfp_t)0x10000u) /* Don't use emergency reserves */
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@ -53,7 +52,7 @@ struct vm_area_struct;
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/* if you forget to add the bitmask here kernel will crash, period */
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#define GFP_LEVEL_MASK (__GFP_WAIT|__GFP_HIGH|__GFP_IO|__GFP_FS| \
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__GFP_COLD|__GFP_NOWARN|__GFP_REPEAT| \
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__GFP_NOFAIL|__GFP_NORETRY|__GFP_NO_GROW|__GFP_COMP| \
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__GFP_NOFAIL|__GFP_NORETRY|__GFP_COMP| \
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__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_THISNODE)
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/* This equals 0, but use constants in case they ever change */
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@ -2746,9 +2746,7 @@ static int cache_grow(struct kmem_cache *cachep,
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* Be lazy and only check for valid flags here, keeping it out of the
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* critical path in kmem_cache_alloc().
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*/
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BUG_ON(flags & ~(GFP_DMA | GFP_LEVEL_MASK | __GFP_NO_GROW));
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if (flags & __GFP_NO_GROW)
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return 0;
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BUG_ON(flags & ~(GFP_DMA | GFP_LEVEL_MASK));
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ctor_flags = SLAB_CTOR_CONSTRUCTOR;
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local_flags = (flags & GFP_LEVEL_MASK);
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@ -3252,7 +3250,7 @@ static void *fallback_alloc(struct kmem_cache *cache, gfp_t flags)
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flags | GFP_THISNODE, nid);
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}
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if (!obj && !(flags & __GFP_NO_GROW)) {
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if (!obj) {
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/*
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* This allocation will be performed within the constraints
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* of the current cpuset / memory policy requirements.
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