btrfs: zoned: remove redundant initialization of to_add
to_add is being initialized to len but this is never read as to_add is
overwritten later on. Remove the redundant initialization.
Cleans up the following clang-analyzer warning:
fs/btrfs/extent-tree.c:2769:8: warning: Value stored to 'to_add' during
its initialization is never read [clang-analyzer-deadcode.DeadStores].
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 96427b1..b7b49b4 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2766,12 +2766,11 @@ static int unpin_extent_range(struct btrfs_fs_info *fs_info,
spin_unlock(&cache->lock);
if (!readonly && return_free_space &&
global_rsv->space_info == space_info) {
- u64 to_add = len;
-
spin_lock(&global_rsv->lock);
if (!global_rsv->full) {
- to_add = min(len, global_rsv->size -
- global_rsv->reserved);
+ u64 to_add = min(len, global_rsv->size -
+ global_rsv->reserved);
+
global_rsv->reserved += to_add;
btrfs_space_info_update_bytes_may_use(fs_info,
space_info, to_add);
