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btrfs: Remove WARN_ON in walk_log_tree

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The log_root passed to walk_log_tree is guaranteed to have its
root_key.objectid always be BTRFS_TREE_LOG_OBJECTID. This is by
merit that all log roots of an ordinary root are allocated in
alloc_log_tree which hard-codes objectid to be BTRFS_TREE_LOG_OBJECTID.

In case walk_log_tree is called for a log tree found by btrfs_read_fs_root
in btrfs_recover_log_trees, that function already ensures
found_key.objectid is BTRFS_TREE_LOG_OBJECTID.

No functional changes.

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 2019-12-02 11:40:13 +02:00 committed by David Sterba
parent a0fbf736d3
commit 5c4b691eb8
1 changed files with 0 additions and 2 deletions
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2
fs/btrfs/tree-log.c
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@ -2894,8 +2894,6 @@ static int walk_log_tree(struct btrfs_trans_handle *trans,
clear_extent_buffer_dirty(next);
}
WARN_ON(log->root_key.objectid !=
BTRFS_TREE_LOG_OBJECTID);
ret = btrfs_pin_reserved_extent(fs_info, next->start,
next->len);
if (ret)