From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e33.co.us.ibm.com (8.12.11/8.12.11) with ESMTP id k0PNpGmF003371 for ; Wed, 25 Jan 2006 18:51:16 -0500 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay04.boulder.ibm.com (8.12.10/NCO/VERS6.8) with ESMTP id k0PNrVfL176178 for ; Wed, 25 Jan 2006 16:53:31 -0700 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.12.11/8.13.3) with ESMTP id k0PNpFMT029296 for ; Wed, 25 Jan 2006 16:51:15 -0700 Subject: [patch 1/9] mempool - Add page allocator From: Matthew Dobson Reply-To: colpatch@us.ibm.com References: <20060125161321.647368000@localhost.localdomain> Content-Type: text/plain Date: Wed, 25 Jan 2006 15:51:13 -0800 Message-Id: <1138233074.27293.0.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: linux-kernel@vger.kernel.org Cc: sri@us.ibm.com, andrea@suse.de, pavel@suse.cz, linux-mm@kvack.org List-ID: plain text document attachment (critical_mempools) Add another allocator to the common mempool code: a simple 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 very likely that there will be more users in the future. Signed-off-by: Matthew Dobson include/linux/mempool.h | 6 ++++++ mm/mempool.c | 17 +++++++++++++++++ 2 files changed, 23 insertions(+) Index: linux-2.6.16-rc1+critical_mempools/mm/mempool.c =================================================================== --- linux-2.6.16-rc1+critical_mempools.orig/mm/mempool.c +++ linux-2.6.16-rc1+critical_mempools/mm/mempool.c @@ -289,3 +289,20 @@ void mempool_free_slab(void *element, vo kmem_cache_free(mem, element); } EXPORT_SYMBOL(mempool_free_slab); + +/* + * A simple mempool-backed page allocator + */ +void *mempool_alloc_pages(gfp_t gfp_mask, void *pool_data) +{ + int order = (int)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)pool_data; + __free_pages(element, order); +} +EXPORT_SYMBOL(mempool_free_pages); Index: linux-2.6.16-rc1+critical_mempools/include/linux/mempool.h =================================================================== --- linux-2.6.16-rc1+critical_mempools.orig/include/linux/mempool.h +++ linux-2.6.16-rc1+critical_mempools/include/linux/mempool.h @@ -38,4 +38,10 @@ extern void mempool_free(void *element, void *mempool_alloc_slab(gfp_t gfp_mask, void *pool_data); void mempool_free_slab(void *element, void *pool_data); +/* + * A mempool_alloc_t and mempool_free_t for a simple page allocator + */ +void *mempool_alloc_pages(gfp_t gfp_mask, void *pool_data); +void mempool_free_pages(void *element, void *pool_data); + #endif /* _LINUX_MEMPOOL_H */ -- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org