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| author | Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2014-08-06 16:04:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 18:01:14 -0700 |
| commit | c8522a3a5832b843570a3315674f5a3575958a51 (patch) | |
| tree | f9feb05f0a13898ca60750286000de02a6575300 /mm/slab.h | |
| parent | 1fe00d50a9e81150de5000490b87ed227525cf09 (diff) | |
| download | linux-c8522a3a5832b843570a3315674f5a3575958a51.tar.bz2 | |
slab: introduce alien_cache
Currently, we use array_cache for alien_cache. Although they are mostly
similar, there is one difference, that is, need for spinlock. We don't
need spinlock for array_cache itself, but to use array_cache for
alien_cache, array_cache structure should have spinlock. This is
needless overhead, so removing it would be better. This patch prepare
it by introducing alien_cache and using it. In the following patch, we
remove spinlock in array_cache.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slab.h')
| -rw-r--r-- | mm/slab.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/slab.h b/mm/slab.h index 3822b65edcc2..928823e17e58 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -276,7 +276,7 @@ struct kmem_cache_node { unsigned int free_limit; unsigned int colour_next; /* Per-node cache coloring */ struct array_cache *shared; /* shared per node */ - struct array_cache **alien; /* on other nodes */ + struct alien_cache **alien; /* on other nodes */ unsigned long next_reap; /* updated without locking */ int free_touched; /* updated without locking */ #endif |