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Diffstat (limited to 'mm/slub.c')
-rw-r--r--mm/slub.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 5e805a6fe36..c1815a63807 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2557,13 +2557,16 @@ static struct kmem_cache *create_kmalloc_cache(struct kmem_cache *s,
if (gfp_flags & SLUB_DMA)
flags = SLAB_CACHE_DMA;
- down_write(&slub_lock);
+ /*
+ * This function is called with IRQs disabled during early-boot on
+ * single CPU so there's no need to take slub_lock here.
+ */
if (!kmem_cache_open(s, gfp_flags, name, size, ARCH_KMALLOC_MINALIGN,
flags, NULL))
goto panic;
list_add(&s->list, &slab_caches);
- up_write(&slub_lock);
+
if (sysfs_slab_add(s))
goto panic;
return s;
@@ -3021,7 +3024,7 @@ void __init kmem_cache_init(void)
* kmem_cache_open for slab_state == DOWN.
*/
create_kmalloc_cache(&kmalloc_caches[0], "kmem_cache_node",
- sizeof(struct kmem_cache_node), GFP_KERNEL);
+ sizeof(struct kmem_cache_node), GFP_NOWAIT);
kmalloc_caches[0].refcount = -1;
caches++;
@@ -3034,16 +3037,16 @@ void __init kmem_cache_init(void)
/* Caches that are not of the two-to-the-power-of size */
if (KMALLOC_MIN_SIZE <= 64) {
create_kmalloc_cache(&kmalloc_caches[1],
- "kmalloc-96", 96, GFP_KERNEL);
+ "kmalloc-96", 96, GFP_NOWAIT);
caches++;
create_kmalloc_cache(&kmalloc_caches[2],
- "kmalloc-192", 192, GFP_KERNEL);
+ "kmalloc-192", 192, GFP_NOWAIT);
caches++;
}
for (i = KMALLOC_SHIFT_LOW; i < SLUB_PAGE_SHIFT; i++) {
create_kmalloc_cache(&kmalloc_caches[i],
- "kmalloc", 1 << i, GFP_KERNEL);
+ "kmalloc", 1 << i, GFP_NOWAIT);
caches++;
}
@@ -3080,7 +3083,7 @@ void __init kmem_cache_init(void)
/* Provide the correct kmalloc names now that the caches are up */
for (i = KMALLOC_SHIFT_LOW; i < SLUB_PAGE_SHIFT; i++)
kmalloc_caches[i]. name =
- kasprintf(GFP_KERNEL, "kmalloc-%d", 1 << i);
+ kasprintf(GFP_NOWAIT, "kmalloc-%d", 1 << i);
#ifdef CONFIG_SMP
register_cpu_notifier(&slab_notifier);