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btrfs: export and use btrfs_read_tree_root for tree-log

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Tree-log uses btrfs_read_fs_root to load its log, but this just calls
btrfs_read_tree_root.  We don't save the log roots in our root cache, so
just export this helper and use it in the logging code.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik
2020-01-24 09:32:21 -05:00
committed by David Sterba
parent e59d18b45d
commit 62a2c73ebd
3 changed files with 5 additions and 3 deletions
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2
fs/btrfs/tree-log.c
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@@ -6150,7 +6150,7 @@ again:
if (found_key.objectid != BTRFS_TREE_LOG_OBJECTID)
break;
log = btrfs_read_fs_root(log_root_tree, &found_key);
log = btrfs_read_tree_root(log_root_tree, &found_key);
if (IS_ERR(log)) {
ret = PTR_ERR(log);
btrfs_handle_fs_error(fs_info, ret,