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From: "Pekka Enberg" <penberg@cs.helsinki.fi>
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org, manfred@colorfullife.com
Subject: [patch 02/10] slab: minor cleanup to kmem_cache_alloc_node
Date: Sat, 14 Jan 2006 14:46:03 +0200	[thread overview]
Message-ID: <20060114122410.207071000@localhost> (raw)
In-Reply-To: 20060114122249.246354000@localhost

From: Christoph Lameter <clameter@engr.sgi.com>

This patch cleans up kmem_cache_alloc_node a bit.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
---

 mm/slab.c |   21 ++++++---------------
 1 file changed, 6 insertions(+), 15 deletions(-)

Index: 2.6/mm/slab.c
===================================================================
--- 2.6.orig/mm/slab.c
+++ 2.6/mm/slab.c
@@ -2916,27 +2916,18 @@ void *kmem_cache_alloc_node(kmem_cache_t
 	unsigned long save_flags;
 	void *ptr;
 
-	if (nodeid == -1)
-		return __cache_alloc(cachep, flags);
-
-	if (unlikely(!cachep->nodelists[nodeid])) {
-		/* Fall back to __cache_alloc if we run into trouble */
-		printk(KERN_WARNING
-		       "slab: not allocating in inactive node %d for cache %s\n",
-		       nodeid, cachep->name);
-		return __cache_alloc(cachep, flags);
-	}
-
 	cache_alloc_debugcheck_before(cachep, flags);
 	local_irq_save(save_flags);
-	if (nodeid == numa_node_id())
+
+	if (nodeid == -1 || nodeid == numa_node_id() ||
+	    !cachep->nodelists[nodeid])
 		ptr = ____cache_alloc(cachep, flags);
 	else
 		ptr = __cache_alloc_node(cachep, flags, nodeid);
 	local_irq_restore(save_flags);
-	ptr =
-	    cache_alloc_debugcheck_after(cachep, flags, ptr,
-					 __builtin_return_address(0));
+
+	ptr = cache_alloc_debugcheck_after(cachep, flags, ptr,
+					   __builtin_return_address(0));
 
 	return ptr;
 }

--


  parent reply	other threads:[~2006-01-14 12:46 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-14 12:46 [patch 00/10] slab updates Pekka Enberg
2006-01-14 12:46 ` [patch 01/10] slab: distinguish between object and buffer size Pekka Enberg
2006-01-14 12:46 ` Pekka Enberg [this message]
2006-01-14 12:46 ` [patch 03/10] slab: have index_of bug at compile time Pekka Enberg
2006-01-14 12:46 ` [patch 05/10] slab: extract slab_destroy_objs() Pekka Enberg
2006-01-18 18:31   ` Christoph Lameter
2006-01-19  9:07     ` Pekka J Enberg
2006-01-20  5:18     ` Horst von Brand
2006-01-14 12:46 ` [patch 06/10] slab: extract slab_{put|get}_obj Pekka Enberg
2006-01-14 12:46 ` [patch 04/10] slab: cache_estimate cleanup Pekka Enberg
2006-01-16  2:38   ` Andrew Morton
2006-01-16  7:00     ` Pekka J Enberg
2006-01-14 12:46 ` [patch 08/10] slab: extract virt_to_{cache|slab} Pekka Enberg
2006-01-14 12:46 ` [patch 07/10] slab: reduce inlining Pekka Enberg
2006-01-14 12:46 ` [patch 09/10] slab: rename ac_data to cpu_cache_get Pekka Enberg
2006-01-14 12:46 ` [patch 10/10] slab: replace kmem_cache_t with struct kmem_cache Pekka Enberg

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