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author | Matthew Dobson <colpatch@us.ibm.com> | 2006-03-26 01:37:44 -0800 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-26 08:56:59 -0800 |
commit | 6e0678f394c7bd21bfa5d252b071a09e10e7a749 (patch) | |
tree | 45e9729c67b867821748414667dada0d36a8bd34 /mm | |
parent | 8219dd5710c1daec2d7a086eeeee5187decfde60 (diff) | |
download | kernel_samsung_crespo-6e0678f394c7bd21bfa5d252b071a09e10e7a749.zip kernel_samsung_crespo-6e0678f394c7bd21bfa5d252b071a09e10e7a749.tar.gz kernel_samsung_crespo-6e0678f394c7bd21bfa5d252b071a09e10e7a749.tar.bz2 |
[PATCH] mempool: add page allocator
This will be used by the next patch in the series to replace duplicate
mempool-backed page allocators in 2 places in the kernel. It is also 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>
Diffstat (limited to 'mm')
-rw-r--r-- | mm/mempool.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mm/mempool.c b/mm/mempool.c index f71893e..45c0112 100644 --- a/mm/mempool.c +++ b/mm/mempool.c @@ -289,3 +289,21 @@ void mempool_free_slab(void *element, void *pool_data) kmem_cache_free(mem, element); } EXPORT_SYMBOL(mempool_free_slab); + +/* + * A simple mempool-backed page allocator that allocates pages + * of the order specified by pool_data. + */ +void *mempool_alloc_pages(gfp_t gfp_mask, void *pool_data) +{ + int order = (int)(long)pool_data; + return alloc_pages(gfp_mask, order); +} +EXPORT_SYMBOL(mempool_alloc_pages); + +void mempool_free_pages(void *element, void *pool_data) +{ + int order = (int)(long)pool_data; + __free_pages(element, order); +} +EXPORT_SYMBOL(mempool_free_pages); |