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| author | David Sterba <dsterba@suse.com> | 2020-05-15 19:35:55 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-05-25 11:25:36 +0200 |
| commit | 56e9357a1e8167134388d4c70654795353765c7b (patch) | |
| tree | e89265fd992d94c54fffb639cf4ee39bd268cfdb /fs/btrfs/tree-log.c | |
| parent | 1dae7e0e58b484eaa43d530f211098fdeeb0f404 (diff) | |
| download | lwn-56e9357a1e8167134388d4c70654795353765c7b.tar.gz lwn-56e9357a1e8167134388d4c70654795353765c7b.zip | |
btrfs: simplify root lookup by id
The main function to lookup a root by its id btrfs_get_fs_root takes the
whole key, while only using the objectid. The value of offset is preset
to (u64)-1 but not actually used until btrfs_find_root that does the
actual search.
Switch btrfs_get_fs_root to use only objectid and remove all local
variables that existed just for the lookup. The actual key for search is
set up in btrfs_get_fs_root, reusing another key variable.
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/tree-log.c')
| -rw-r--r-- | fs/btrfs/tree-log.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 60febf2082ee..d3662e102b2e 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -6112,7 +6112,6 @@ int btrfs_recover_log_trees(struct btrfs_root *log_root_tree) struct btrfs_trans_handle *trans; struct btrfs_key key; struct btrfs_key found_key; - struct btrfs_key tmp_key; struct btrfs_root *log; struct btrfs_fs_info *fs_info = log_root_tree->fs_info; struct walk_control wc = { @@ -6174,11 +6173,8 @@ again: goto error; } - tmp_key.objectid = found_key.offset; - tmp_key.type = BTRFS_ROOT_ITEM_KEY; - tmp_key.offset = (u64)-1; - - wc.replay_dest = btrfs_get_fs_root(fs_info, &tmp_key, true); + wc.replay_dest = btrfs_get_fs_root(fs_info, found_key.offset, + true); if (IS_ERR(wc.replay_dest)) { ret = PTR_ERR(wc.replay_dest); |