From: Christoph Lameter <cl@linux.com>
To: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: linux-kernel@vger.kernel.org
Subject: [slubllv3 13/21] slub: Pass kmem_cache struct to lock and freeze slab
Date: Fri, 15 Apr 2011 15:47:43 -0500 [thread overview]
Message-ID: <20110415204753.595072920@linux.com> (raw)
In-Reply-To: <20110415204730.326790555@linux.com>
[-- Attachment #1: pass_kmem_cache_to_lock_and_freeze --]
[-- Type: text/plain, Size: 1641 bytes --]
We need more information about the slab for the cmpxchg implementation.
Signed-off-by: Christoph Lameter <cl@linux.com>
---
mm/slub.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
Index: linux-2.6/mm/slub.c
===================================================================
--- linux-2.6.orig/mm/slub.c 2011-04-15 14:29:01.000000000 -0500
+++ linux-2.6/mm/slub.c 2011-04-15 14:29:35.000000000 -0500
@@ -1424,8 +1424,8 @@ static inline void remove_partial(struct
*
* Must hold list_lock.
*/
-static inline int lock_and_freeze_slab(struct kmem_cache_node *n,
- struct page *page)
+static inline int lock_and_freeze_slab(struct kmem_cache *s,
+ struct kmem_cache_node *n, struct page *page)
{
if (slab_trylock(page)) {
remove_partial(n, page);
@@ -1437,7 +1437,8 @@ static inline int lock_and_freeze_slab(s
/*
* Try to allocate a partial slab from a specific node.
*/
-static struct page *get_partial_node(struct kmem_cache_node *n)
+static struct page *get_partial_node(struct kmem_cache *s,
+ struct kmem_cache_node *n)
{
struct page *page;
@@ -1452,7 +1453,7 @@ static struct page *get_partial_node(str
spin_lock(&n->list_lock);
list_for_each_entry(page, &n->partial, lru)
- if (lock_and_freeze_slab(n, page))
+ if (lock_and_freeze_slab(s, n, page))
goto out;
page = NULL;
out:
@@ -1503,7 +1504,7 @@ static struct page *get_any_partial(stru
if (n && cpuset_zone_allowed_hardwall(zone, flags) &&
n->nr_partial > s->min_partial) {
- page = get_partial_node(n);
+ page = get_partial_node(s, n);
if (page) {
put_mems_allowed();
return page;
next prev parent reply other threads:[~2011-04-15 20:50 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-15 20:47 [slubllv3 00/21] SLUB: Lockless freelists for objects V3 Christoph Lameter
2011-04-15 20:47 ` [slubllv3 01/21] slub: Use NUMA_NO_NODE in get_partial Christoph Lameter
2011-04-15 20:47 ` [slubllv3 02/21] slub: get_map() function to establish map of free objects in a slab Christoph Lameter
2011-04-15 20:47 ` [slubllv3 03/21] slub: Eliminate repeated use of c->page through a new page variable Christoph Lameter
2011-04-15 20:47 ` [slubllv3 04/21] slub: Move node determination out of hotpath Christoph Lameter
2011-04-15 20:47 ` [slubllv3 05/21] slub: Move debug handlign in __slab_free Christoph Lameter
2011-04-15 20:47 ` [slubllv3 06/21] slub: Per object NUMA support Christoph Lameter
2011-04-15 20:47 ` [slubllv3 07/21] slub: Do not use frozen page flag but a bit in the page counters Christoph Lameter
2011-04-15 20:47 ` [slubllv3 08/21] slub: Move page->frozen handling near where the page->freelist handling occurs Christoph Lameter
2011-04-15 20:47 ` [slubllv3 09/21] x86: Add support for cmpxchg_double Christoph Lameter
2011-04-15 20:47 ` [slubllv3 10/21] mm: Rearrange struct page Christoph Lameter
2011-04-15 20:47 ` [slubllv3 11/21] slub: Add cmpxchg_double_slab() Christoph Lameter
2011-04-15 20:47 ` [slubllv3 12/21] slub: explicit list_lock taking Christoph Lameter
2011-04-15 20:47 ` Christoph Lameter [this message]
2011-04-15 20:47 ` [slubllv3 14/21] slub: Rework allocator fastpaths Christoph Lameter
2011-04-15 20:47 ` [slubllv3 15/21] slub: Invert locking and avoid slab lock Christoph Lameter
2011-04-15 20:47 ` [slubllv3 16/21] slub: Disable interrupts in free_debug processing Christoph Lameter
2011-04-15 20:47 ` [slubllv3 17/21] slub: Avoid disabling interrupts in free slowpath Christoph Lameter
2011-04-15 20:47 ` [slubllv3 18/21] slub: Get rid of the another_slab label Christoph Lameter
2011-04-15 20:47 ` [slubllv3 19/21] slub: fast release on full slab Christoph Lameter
2011-04-15 20:47 ` [slubllv3 20/21] slub: Not necessary to check for empty slab on load_freelist Christoph Lameter
2011-04-15 20:47 ` [slubllv3 21/21] slub: update statistics for cmpxchg handling Christoph Lameter
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