diff options
| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-07-25 08:55:42 +0200 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2011-07-28 13:40:08 +0300 |
| commit | acfe7d74484d6ccb25a80b8ff259fceceac0473e (patch) | |
| tree | 0de2cb086983813091e426015e218643016b3bc9 /mm | |
| parent | 95b6886526bb510b8370b625a49bc0ab3b8ff10f (diff) | |
| download | lwn-acfe7d74484d6ccb25a80b8ff259fceceac0473e.tar.gz lwn-acfe7d74484d6ccb25a80b8ff259fceceac0473e.zip | |
slab: remove one NR_CPUS dependency
Reduce high order allocations in do_tune_cpucache() for some setups.
(NR_CPUS=4096 -> we need 64KB)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/slab.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/slab.c b/mm/slab.c index 1e523ed47c61..b80282aef73b 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3934,7 +3934,7 @@ fail: struct ccupdate_struct { struct kmem_cache *cachep; - struct array_cache *new[NR_CPUS]; + struct array_cache *new[0]; }; static void do_ccupdate_local(void *info) @@ -3956,7 +3956,8 @@ static int do_tune_cpucache(struct kmem_cache *cachep, int limit, struct ccupdate_struct *new; int i; - new = kzalloc(sizeof(*new), gfp); + new = kzalloc(sizeof(*new) + nr_cpu_ids * sizeof(struct array_cache *), + gfp); if (!new) return -ENOMEM; |