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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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4
fs/btrfs/disk-io.c
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@ -1384,8 +1384,8 @@ int btrfs_add_log_tree(struct btrfs_trans_handle *trans,
return 0;
}
static struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root,
struct btrfs_key *key)
struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root,
struct btrfs_key *key)
{
struct btrfs_root *root;
struct btrfs_fs_info *fs_info = tree_root->fs_info;