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>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 15467e3f5876..7c18566fd2b4 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2983,7 +2983,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
         nritems = btrfs_header_nritems(buf);
         level = btrfs_header_level(buf);
 
-        if (!root->ref_cows && level == 0)
+        if (!test_bit(BTRFS_ROOT_REF_COWS, &root->state) && level == 0)
                 return 0;
 
         if (inc)
@@ -4472,7 +4472,7 @@ static struct btrfs_block_rsv *get_block_rsv(
 {
         struct btrfs_block_rsv *block_rsv = NULL;
 
-        if (root->ref_cows)
+        if (test_bit(BTRFS_ROOT_REF_COWS, &root->state))
                 block_rsv = trans->block_rsv;
 
         if (root == root->fs_info->csum_root && trans->adding_csums)
@@ -7838,7 +7838,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
                 }
         }
 
-        if (root->in_radix) {
+        if (test_bit(BTRFS_ROOT_IN_RADIX, &root->state)) {
                 btrfs_drop_and_free_fs_root(tree_root->fs_info, root);
         } else {
                 free_extent_buffer(root->node);