diff options
Diffstat (limited to 'drivers/md/raid5.c')
| -rw-r--r-- | drivers/md/raid5.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index a87549be8e53..c9aa37234e46 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1928,8 +1928,9 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request) struct raid5_percpu *percpu; unsigned long cpu; - cpu = get_cpu(); + cpu = get_cpu_light(); percpu = per_cpu_ptr(conf->percpu, cpu); + spin_lock(&percpu->lock); if (test_bit(STRIPE_OP_BIOFILL, &ops_request)) { ops_run_biofill(sh); overlap_clear++; @@ -1985,7 +1986,8 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request) if (test_and_clear_bit(R5_Overlap, &dev->flags)) wake_up(&sh->raid_conf->wait_for_overlap); } - put_cpu(); + spin_unlock(&percpu->lock); + put_cpu_light(); } static struct stripe_head *alloc_stripe(struct kmem_cache *sc, gfp_t gfp, @@ -6438,6 +6440,7 @@ static int raid5_alloc_percpu(struct r5conf *conf) __func__, cpu); break; } + spin_lock_init(&per_cpu_ptr(conf->percpu, cpu)->lock); } put_online_cpus(); |