btrfs: export and use btrfs_read_tree_root for tree-log
authorJosef Bacik <josef@toxicpanda.com>
Fri, 24 Jan 2020 14:32:21 +0000 (09:32 -0500)
committerDavid Sterba <dsterba@suse.com>
Mon, 23 Mar 2020 16:01:25 +0000 (17:01 +0100)
commit62a2c73ebda3b0163832610c0e91f350a22908bd
treec2145a3346cda6bfc0cce9a9fa7b3f94ff5083fc
parente59d18b45d081d66a2fb1a9d144fa82d4807b18d
btrfs: export and use btrfs_read_tree_root for tree-log

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>
fs/btrfs/disk-io.c
fs/btrfs/disk-io.h
fs/btrfs/tree-log.c