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authorKai Song <songkai01@inspur.com>2021-10-03 16:06:56 +0800
committerDavid Sterba <dsterba@suse.com>2021-10-26 19:08:05 +0200
commit64259baa396f185cdb44eeb9432fd9b85b178a9a (patch)
tree474526dfade12a39c839c4ccb7405987f80ba9b9 /fs/btrfs
parent0cf9b244e7db173bdb0cffed0253fea808f7f4e6 (diff)
downloadlinux-64259baa396f185cdb44eeb9432fd9b85b178a9a.tar.gz
btrfs: zoned: use kmemdup() to replace kmalloc + memcpy
Fix memdup.cocci warning:
fs/btrfs/zoned.c:1198:23-30: WARNING opportunity for kmemdup

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Kai Song <songkai01@inspur.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/zoned.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 14ea6797bf49..67d932d70798 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -1195,14 +1195,12 @@ int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new)
 
 	map = em->map_lookup;
 
-	cache->physical_map = kmalloc(map_lookup_size(map->num_stripes), GFP_NOFS);
+	cache->physical_map = kmemdup(map, map_lookup_size(map->num_stripes), GFP_NOFS);
 	if (!cache->physical_map) {
 		ret = -ENOMEM;
 		goto out;
 	}
 
-	memcpy(cache->physical_map, map, map_lookup_size(map->num_stripes));
-
 	alloc_offsets = kcalloc(map->num_stripes, sizeof(*alloc_offsets), GFP_NOFS);
 	if (!alloc_offsets) {
 		ret = -ENOMEM;