diff options
| author | Josh Boyer <jwboyer@fedoraproject.org> | 2013-10-10 08:53:35 -0400 |
|---|---|---|
| committer | Josh Boyer <jwboyer@fedoraproject.org> | 2013-10-10 08:53:35 -0400 |
| commit | 2d330008c49a43d877016001f8f3587c4813b106 (patch) | |
| tree | 5b6d5e944cdd066214ef1484f0be82d7a33b8dd4 /dm-cache-policy-mq_fix-large-scale-table-allocation-bug.patch | |
| parent | b817316a0e458997d10a704d5463a710338de111 (diff) | |
| download | kernel-2d330008c49a43d877016001f8f3587c4813b106.tar.gz kernel-2d330008c49a43d877016001f8f3587c4813b106.tar.xz kernel-2d330008c49a43d877016001f8f3587c4813b106.zip | |
Fix large order allocation in dm mq policy (rhbz 993744)
Diffstat (limited to 'dm-cache-policy-mq_fix-large-scale-table-allocation-bug.patch')
| -rw-r--r-- | dm-cache-policy-mq_fix-large-scale-table-allocation-bug.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/dm-cache-policy-mq_fix-large-scale-table-allocation-bug.patch b/dm-cache-policy-mq_fix-large-scale-table-allocation-bug.patch new file mode 100644 index 000000000..71234c1a7 --- /dev/null +++ b/dm-cache-policy-mq_fix-large-scale-table-allocation-bug.patch @@ -0,0 +1,31 @@ +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: |