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[PATCH] mempool: add kzalloc allocator
Add another allocator to the common mempool code: a kzalloc/kfree allocator This will be used by the next patch in the series to replace a mempool-backed kzalloc allocator. It is also very likely that there will be more users in the future. Signed-off-by: Matthew Dobson <colpatch@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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2 changed files with 16 additions and 3 deletions
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@ -39,16 +39,22 @@ void *mempool_alloc_slab(gfp_t gfp_mask, void *pool_data);
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void mempool_free_slab(void *element, void *pool_data);
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/*
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* A mempool_alloc_t and mempool_free_t to kmalloc the amount of memory
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* specified by pool_data
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* 2 mempool_alloc_t's and a mempool_free_t to kmalloc/kzalloc and kfree
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* the amount of memory specified by pool_data
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*/
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void *mempool_kmalloc(gfp_t gfp_mask, void *pool_data);
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void *mempool_kzalloc(gfp_t gfp_mask, void *pool_data);
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void mempool_kfree(void *element, void *pool_data);
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static inline mempool_t *mempool_create_kmalloc_pool(int min_nr, size_t size)
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{
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return mempool_create(min_nr, mempool_kmalloc, mempool_kfree,
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(void *) size);
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}
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static inline mempool_t *mempool_create_kzalloc_pool(int min_nr, size_t size)
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{
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return mempool_create(min_nr, mempool_kzalloc, mempool_kfree,
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(void *) size);
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}
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/*
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* A mempool_alloc_t and mempool_free_t for a simple page allocator that
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@ -296,11 +296,18 @@ EXPORT_SYMBOL(mempool_free_slab);
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*/
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void *mempool_kmalloc(gfp_t gfp_mask, void *pool_data)
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{
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size_t size = (size_t) pool_data;
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size_t size = (size_t)(long)pool_data;
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return kmalloc(size, gfp_mask);
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}
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EXPORT_SYMBOL(mempool_kmalloc);
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void *mempool_kzalloc(gfp_t gfp_mask, void *pool_data)
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{
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size_t size = (size_t) pool_data;
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return kzalloc(size, gfp_mask);
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}
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EXPORT_SYMBOL(mempool_kzalloc);
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void mempool_kfree(void *element, void *pool_data)
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{
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kfree(element);
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