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| author | Haicheng Li <haicheng.li@linux.intel.com> | 2010-01-06 15:25:23 +0800 |
|---|---|---|
| committer | Pekka Enberg <penberg@cs.helsinki.fi> | 2010-01-11 18:56:07 +0200 |
| commit | f3186a9c51eabe75b2780153ed7f07778d78b16e (patch) | |
| tree | ab8c267ad09ead33c8ed757612b34ad5a1b70ce7 /mm/slab.c | |
| parent | 6b7b284958d47b77d06745b36bc7f36dab769d9b (diff) | |
| download | op-kernel-dev-f3186a9c51eabe75b2780153ed7f07778d78b16e.zip op-kernel-dev-f3186a9c51eabe75b2780153ed7f07778d78b16e.tar.gz | |
slab: initialize unused alien cache entry as NULL at alloc_alien_cache().
Comparing with existing code, it's a simpler way to use kzalloc_node()
to ensure that each unused alien cache entry is NULL.
CC: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux-foundation.org>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Haicheng Li <haicheng.li@linux.intel.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Diffstat (limited to 'mm/slab.c')
| -rw-r--r-- | mm/slab.c | 6 |
1 files changed, 2 insertions, 4 deletions
@@ -983,13 +983,11 @@ static struct array_cache **alloc_alien_cache(int node, int limit, gfp_t gfp) if (limit > 1) limit = 12; - ac_ptr = kmalloc_node(memsize, gfp, node); + ac_ptr = kzalloc_node(memsize, gfp, node); if (ac_ptr) { for_each_node(i) { - if (i == node || !node_online(i)) { - ac_ptr[i] = NULL; + if (i == node || !node_online(i)) continue; - } ac_ptr[i] = alloc_arraycache(node, limit, 0xbaadf00d, gfp); if (!ac_ptr[i]) { for (i--; i >= 0; i--) |
