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btrfs: Make btrfs_find_name_in_backref return btrfs_inode_ref struct

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btrfs_find_name_in_backref returns either 0/1 depending on whether it
found a backref for the given name. If it returns true then the actual
inode_ref struct is returned in one of its parameters. That's pointless,
instead refactor the function such that it returns either a pointer
to the btrfs_inode_ref or NULL it it didn't find anything. This
streamlines the function calling convention.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov
2019-08-27 14:46:28 +03:00
committed by David Sterba
parent 1dc990dfd3
commit 9bb8407f54
3 changed files with 21 additions and 22 deletions
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8
fs/btrfs/tree-log.c
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@@ -1271,8 +1271,8 @@ again:
parent_id, name,
namelen, NULL);
else
ret = btrfs_find_name_in_backref(log_eb, log_slot, name,
namelen, NULL);
ret = !!btrfs_find_name_in_backref(log_eb, log_slot,
name, namelen);
if (!ret) {
struct inode *dir;
@@ -1338,8 +1338,8 @@ static int btrfs_inode_ref_exists(struct inode *inode, struct inode *dir,
path->slots[0], parent_id,
name, namelen, NULL);
else
ret = btrfs_find_name_in_backref(path->nodes[0], path->slots[0],
name, namelen, NULL);
ret = !!btrfs_find_name_in_backref(path->nodes[0], path->slots[0],
name, namelen);
out:
btrfs_free_path(path);