Btrfs: use bitfield instead of integer data type for the some variants in btrfs_root
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 3029925..5c6947d 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -714,7 +714,7 @@
int recow;
int ret;
int modify_tree = -1;
- int update_refs = (root->ref_cows || root == root->fs_info->tree_root);
+ int update_refs;
int found = 0;
int leafs_visited = 0;
@@ -724,6 +724,8 @@
if (start >= BTRFS_I(inode)->disk_i_size && !replace_extent)
modify_tree = 0;
+ update_refs = (test_bit(BTRFS_ROOT_REF_COWS, &root->state) ||
+ root == root->fs_info->tree_root);
while (1) {
recow = 0;
ret = btrfs_lookup_file_extent(trans, root, path, ino,