kernel/dm-cache-policy-mq_fix-large-scale-table-allocation-bug.patch

32 lines
1012 B
Diff

diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c
index cab6dd2..ec79c8f 100644
--- a/drivers/md/dm-cache-policy-mq.c
+++ b/drivers/md/dm-cache-policy-mq.c
@@ -868,7 +868,7 @@ static void mq_destroy(struct dm_cache_policy *p)
struct mq_policy *mq = to_mq_policy(p);
free_bitset(mq->allocation_bitset);
- kfree(mq->table);
+ vfree(mq->table);
free_entries(mq);
kfree(mq);
}
@@ -1189,7 +1189,7 @@ static struct dm_cache_policy *mq_create(dm_cblock_t cache_size,
mq->nr_buckets = next_power(from_cblock(cache_size) / 2, 16);
mq->hash_bits = ffs(mq->nr_buckets) - 1;
- mq->table = kzalloc(sizeof(*mq->table) * mq->nr_buckets, GFP_KERNEL);
+ mq->table = vzalloc(sizeof(*mq->table) * mq->nr_buckets);
if (!mq->table)
goto bad_alloc_table;
@@ -1200,7 +1200,7 @@ static struct dm_cache_policy *mq_create(dm_cblock_t cache_size,
return &mq->policy;
bad_alloc_bitset:
- kfree(mq->table);
+ vfree(mq->table);
bad_alloc_table:
free_entries(mq);
bad_cache_alloc: