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Btrfs: cleanup: don't check the same thing twice

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btrfs_read_fs_root_no_name() already checks if btrfs_root_refs()
is zero and returns ENOENT in this case. There is no need to do
it again in six places.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This commit is contained in:
Stefan Behrens 2013-05-13 13:53:35 +00:00 committed by Josef Bacik
parent b1b195969f
commit 3c64a1aba7
5 changed files with 0 additions and 27 deletions
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5
fs/btrfs/export.c
View File

@ -82,11 +82,6 @@ static struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid,
goto fail;
}
if (btrfs_root_refs(&root->root_item) == 0) {
err = -ENOENT;
goto fail;
}
key.objectid = objectid;
btrfs_set_key_type(&key, BTRFS_INODE_ITEM_KEY);
key.offset = 0;

4
fs/btrfs/file.c
View File

@ -308,10 +308,6 @@ static int __btrfs_run_defrag_inode(struct btrfs_fs_info *fs_info,
ret = PTR_ERR(inode_root);
goto cleanup;
}
if (btrfs_root_refs(&inode_root->root_item) == 0) {
ret = -ENOENT;
goto cleanup;
}
key.objectid = defrag->ino;
btrfs_set_key_type(&key, BTRFS_INODE_ITEM_KEY);

10
fs/btrfs/inode.c
View File

@ -2262,11 +2262,6 @@ static noinline int relink_extent_backref(struct btrfs_path *path,
return 0;
return PTR_ERR(root);
}
if (btrfs_root_refs(&root->root_item) == 0) {
srcu_read_unlock(&fs_info->subvol_srcu, index);
/* parse ENOENT to 0 */
return 0;
}
/* step 2: get inode */
key.objectid = backref->inum;
@ -4821,11 +4816,6 @@ static int fixup_tree_root_location(struct btrfs_root *root,
goto out;
}
if (btrfs_root_refs(&new_root->root_item) == 0) {
err = -ENOENT;
goto out;
}
*sub_root = new_root;
location->objectid = btrfs_root_dirid(&new_root->root_item);
location->type = BTRFS_INODE_ITEM_KEY;

5
fs/btrfs/ioctl.c
View File

@ -2951,11 +2951,6 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp)
goto out;
}
if (btrfs_root_refs(&new_root->root_item) == 0) {
ret = -ENOENT;
goto out;
}
path = btrfs_alloc_path();
if (!path) {
ret = -ENOMEM;

3
fs/btrfs/super.c
View File

@ -775,9 +775,6 @@ find_root:
if (IS_ERR(new_root))
return ERR_CAST(new_root);
if (btrfs_root_refs(&new_root->root_item) == 0)
return ERR_PTR(-ENOENT);
dir_id = btrfs_root_dirid(&new_root->root_item);
setup_root:
location.objectid = dir_id;