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| author | Namhyung Kim <namhyung@gmail.com> | 2011-07-18 17:38:50 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2011-07-18 17:38:50 +1000 |
| commit | 6ce328462c1145a217ba1f27b882743be1407759 (patch) | |
| tree | 53eb00f1fbbb002f4f3d74a0e1ed09131377a70d /drivers | |
| parent | c65060ad4274f70048d62e0a86332cd3fd23f28d (diff) | |
| download | linux-3.10-6ce328462c1145a217ba1f27b882743be1407759.tar.gz linux-3.10-6ce328462c1145a217ba1f27b882743be1407759.tar.bz2 linux-3.10-6ce328462c1145a217ba1f27b882743be1407759.zip | |
md/raid5: use kmem_cache_zalloc()
Replace kmem_cache_alloc + memset(,0,) to kmem_cache_zalloc.
I think it's not harmful since @conf->slab_cache already knows
actual size of struct stripe_head.
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/raid5.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index b72edf35ec5..0f71aa9a07c 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1315,10 +1315,10 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request) static int grow_one_stripe(raid5_conf_t *conf) { struct stripe_head *sh; - sh = kmem_cache_alloc(conf->slab_cache, GFP_KERNEL); + sh = kmem_cache_zalloc(conf->slab_cache, GFP_KERNEL); if (!sh) return 0; - memset(sh, 0, sizeof(*sh) + (conf->pool_size-1)*sizeof(struct r5dev)); + sh->raid_conf = conf; spin_lock_init(&sh->lock); #ifdef CONFIG_MULTICORE_RAID456 @@ -1435,12 +1435,10 @@ static int resize_stripes(raid5_conf_t *conf, int newsize) return -ENOMEM; for (i = conf->max_nr_stripes; i; i--) { - nsh = kmem_cache_alloc(sc, GFP_KERNEL); + nsh = kmem_cache_zalloc(sc, GFP_KERNEL); if (!nsh) break; - memset(nsh, 0, sizeof(*nsh) + (newsize-1)*sizeof(struct r5dev)); - nsh->raid_conf = conf; spin_lock_init(&nsh->lock); #ifdef CONFIG_MULTICORE_RAID456 |