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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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6
fs/btrfs/extent-tree.c
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@@ -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);