---

yaml --- r: 26710 b: refs/heads/master c: 39d24e6 h: refs/heads/master v: v3
git-mirror · May 15, 2006 · 945022a · 945022a
1 parent f19c75e
commit 945022a
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Showing 4 changed files with 11 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 48564e628bd7662d7a0b3ac81c41cd0e4cc36dae
+refs/heads/master: 39d24e64263cd3211705d3b61ea4171c65030921
diff --git a/trunk/include/linux/slab.h b/trunk/include/linux/slab.h
@@ -150,6 +150,7 @@ static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
 
 extern void kfree(const void *);
 extern unsigned int ksize(const void *);
+extern int slab_is_available(void);
 
 #ifdef CONFIG_NUMA
 extern void *kmem_cache_alloc_node(kmem_cache_t *, gfp_t flags, int node);

diff --git a/trunk/mm/slab.c b/trunk/mm/slab.c
@@ -700,6 +700,14 @@ static enum {
 	FULL
 } g_cpucache_up;
 
+/*
+ * used by boot code to determine if it can use slab based allocator
+ */
+int slab_is_available(void)
+{
+	return g_cpucache_up == FULL;
+}
+
 static DEFINE_PER_CPU(struct work_struct, reap_work);
 
 static void free_block(struct kmem_cache *cachep, void **objpp, int len,

diff --git a/trunk/mm/sparse.c b/trunk/mm/sparse.c
@@ -32,7 +32,7 @@ static struct mem_section *sparse_index_alloc(int nid)
 	unsigned long array_size = SECTIONS_PER_ROOT *
 				   sizeof(struct mem_section);
 
-	if (system_state == SYSTEM_RUNNING)
+	if (slab_is_available())
 		section = kmalloc_node(array_size, GFP_KERNEL, nid);
 	else
 		section = alloc_bootmem_node(NODE_DATA(nid), array_size);