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Btrfs: use bitfield instead of integer data type for the some variants in btrfs_root

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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>
This commit is contained in:
Miao Xie
2014-04-02 19:51:05 +08:00
committed by Chris Mason
parent f959492fc1
commit 27cdeb7096
12 changed files with 109 additions and 94 deletions
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4
fs/btrfs/ioctl.c
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@@ -638,7 +638,7 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
struct btrfs_trans_handle *trans;
int ret;
if (!root->ref_cows)
if (!test_bit(BTRFS_ROOT_REF_COWS, &root->state))
return -EINVAL;
atomic_inc(&root->will_be_snapshoted);
@@ -2369,7 +2369,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
dest->root_item.drop_level = 0;
btrfs_set_root_refs(&dest->root_item, 0);
if (!xchg(&dest->orphan_item_inserted, 1)) {
if (!test_and_set_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &dest->state)) {
ret = btrfs_insert_orphan_item(trans,
root->fs_info->tree_root,
dest->root_key.objectid);