From: Matthew Dobson <colpatch@us.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: sri@us.ibm.com, andrea@suse.de, pavel@suse.cz, linux-mm@kvack.org
Subject: [patch 1/9] mempool - Add page allocator
Date: Wed, 25 Jan 2006 15:51:13 -0800 [thread overview]
Message-ID: <1138233074.27293.0.camel@localhost.localdomain> (raw)
In-Reply-To: 20060125161321.647368000@localhost.localdomain
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 <colpatch@us.ibm.com>
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 */
--
next prev parent reply other threads:[~2006-01-25 23:51 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20060125161321.647368000@localhost.localdomain>
2006-01-25 19:39 ` [patch 1/9] mempool - Add page allocator Matthew Dobson
2006-01-25 19:39 ` [patch 2/9] mempool - Use common mempool " Matthew Dobson
2006-01-25 19:40 ` [patch 4/9] mempool - Update mempool page allocator user Matthew Dobson
2006-01-25 19:40 ` [patch 5/9] mempool - Update kmalloc mempool users Matthew Dobson
2006-01-25 19:40 ` [patch 6/9] mempool - Update kzalloc " Matthew Dobson
2006-01-26 7:30 ` Pekka Enberg
2006-01-26 22:03 ` Matthew Dobson
2006-01-25 19:40 ` [patch 8/9] slab - Add *_mempool slab variants Matthew Dobson
2006-01-26 7:41 ` Pekka Enberg
2006-01-26 22:40 ` Matthew Dobson
2006-01-27 7:09 ` Pekka J Enberg
2006-01-27 7:10 ` Pekka J Enberg
2006-01-25 19:40 ` [patch 9/9] slab - Implement single mempool backing for slab allocator Matthew Dobson
2006-01-26 8:11 ` Pekka Enberg
2006-01-26 22:48 ` Matthew Dobson
2006-01-27 7:22 ` Pekka J Enberg
2006-01-25 23:51 ` Matthew Dobson [this message]
2006-01-25 23:51 ` [patch 3/9] mempool - Make mempools NUMA aware Matthew Dobson
2006-01-26 17:54 ` Christoph Lameter
2006-01-26 22:57 ` Matthew Dobson
2006-01-26 23:15 ` Christoph Lameter
2006-01-26 23:24 ` Matthew Dobson
2006-01-26 23:29 ` Christoph Lameter
2006-01-27 0:15 ` Matthew Dobson
2006-01-27 0:21 ` Christoph Lameter
2006-01-27 0:34 ` Matthew Dobson
2006-01-27 0:39 ` Christoph Lameter
2006-01-27 0:44 ` Matthew Dobson
2006-01-27 0:57 ` Christoph Lameter
2006-01-27 1:07 ` Andi Kleen
2006-01-27 10:51 ` Paul Jackson
2006-01-28 1:00 ` Matthew Dobson
2006-01-28 5:08 ` Paul Jackson
2006-01-28 8:16 ` Pavel Machek
2006-01-28 16:14 ` Sridhar Samudrala
2006-01-28 16:41 ` Pavel Machek
2006-01-28 16:53 ` Sridhar Samudrala
2006-01-28 22:59 ` Pavel Machek
2006-01-28 23:10 ` Let the flames begin... [was Re: [patch 3/9] mempool - Make mempools NUMA aware] Pavel Machek
2006-01-27 0:23 ` [patch 3/9] mempool - Make mempools NUMA aware Benjamin LaHaise
2006-01-27 0:35 ` Matthew Dobson
2006-01-27 3:23 ` Benjamin LaHaise
2006-01-28 1:08 ` Matthew Dobson
2006-01-25 23:51 ` [patch 7/9] mempool - Update other mempool users Matthew Dobson
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