From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <20070614075335.467539848@sgi.com> References: <20070614075026.607300756@sgi.com> Date: Thu, 14 Jun 2007 00:50:32 -0700 From: clameter@sgi.com Subject: [RFC 06/13] Memoryless nodes: SLUB support Content-Disposition: inline; filename=nodeless_slub Sender: owner-linux-mm@kvack.org Return-Path: To: Nishanth Aravamudan Cc: Lee Schermerhorn , linux-mm@kvack.org List-ID: Simply switch all for_each_online_node to for_each_memory_node. That way SLUB only operates on nodes with memory. Any allocation attempt on a memoryless node will fall whereupon SLUB will fetch memory from a nearby node (depending on how memory policies and cpuset describe fallback). Signed-off-by: Christoph Lameter Index: linux-2.6.22-rc4-mm2/mm/slub.c =================================================================== --- linux-2.6.22-rc4-mm2.orig/mm/slub.c 2007-06-13 23:23:35.000000000 -0700 +++ linux-2.6.22-rc4-mm2/mm/slub.c 2007-06-13 23:23:59.000000000 -0700 @@ -1887,7 +1887,7 @@ static void free_kmem_cache_nodes(struct { int node; - for_each_online_node(node) { + for_each_memory_node(node) { struct kmem_cache_node *n = s->node[node]; if (n && n != &s->local_node) kmem_cache_free(kmalloc_caches, n); @@ -1905,7 +1905,7 @@ static int init_kmem_cache_nodes(struct else local_node = 0; - for_each_online_node(node) { + for_each_memory_node(node) { struct kmem_cache_node *n; if (local_node == node) @@ -2159,7 +2159,7 @@ static int kmem_cache_close(struct kmem_ flush_all(s); /* Attempt to free all objects */ - for_each_online_node(node) { + for_each_memory_node(node) { struct kmem_cache_node *n = get_node(s, node); n->nr_partial -= free_list(s, n, &n->partial); @@ -2406,7 +2406,7 @@ int kmem_cache_shrink(struct kmem_cache return -ENOMEM; flush_all(s); - for_each_online_node(node) { + for_each_memory_node(node) { n = get_node(s, node); if (!n->nr_partial) @@ -2842,7 +2842,7 @@ static unsigned long validate_slab_cache unsigned long count = 0; flush_all(s); - for_each_online_node(node) { + for_each_memory_node(node) { struct kmem_cache_node *n = get_node(s, node); count += validate_slab_node(s, n); @@ -3064,7 +3064,7 @@ static int list_locations(struct kmem_ca /* Push back cpu slabs */ flush_all(s); - for_each_online_node(node) { + for_each_memory_node(node) { struct kmem_cache_node *n = get_node(s, node); unsigned long flags; struct page *page; @@ -3189,7 +3189,7 @@ static unsigned long slab_objects(struct } } - for_each_online_node(node) { + for_each_memory_node(node) { struct kmem_cache_node *n = get_node(s, node); if (flags & SO_PARTIAL) { @@ -3217,7 +3217,7 @@ static unsigned long slab_objects(struct x = sprintf(buf, "%lu", total); #ifdef CONFIG_NUMA - for_each_online_node(node) + for_each_memory_node(node) if (nodes[node]) x += sprintf(buf + x, " N%d=%lu", node, nodes[node]); -- -- 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