Btrfs: resume balance on rw (re)mounts properly
This introduces btrfs_resume_balance_async(), which, given that
restriper state was recovered earlier by btrfs_recover_balance(),
resumes balance in btrfs-balance kthread.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 3a7961b..8cc4710 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2490,17 +2490,23 @@
goto fail_trans_kthread;
}
- if (!(sb->s_flags & MS_RDONLY)) {
- down_read(&fs_info->cleanup_work_sem);
- err = btrfs_orphan_cleanup(fs_info->fs_root);
- if (!err)
- err = btrfs_orphan_cleanup(fs_info->tree_root);
- up_read(&fs_info->cleanup_work_sem);
+ if (sb->s_flags & MS_RDONLY)
+ return 0;
- if (err) {
- close_ctree(tree_root);
- return err;
- }
+ down_read(&fs_info->cleanup_work_sem);
+ if ((ret = btrfs_orphan_cleanup(fs_info->fs_root)) ||
+ (ret = btrfs_orphan_cleanup(fs_info->tree_root))) {
+ up_read(&fs_info->cleanup_work_sem);
+ close_ctree(tree_root);
+ return ret;
+ }
+ up_read(&fs_info->cleanup_work_sem);
+
+ ret = btrfs_resume_balance_async(fs_info);
+ if (ret) {
+ printk(KERN_WARNING "btrfs: failed to resume balance\n");
+ close_ctree(tree_root);
+ return ret;
}
return 0;