[XFS] xfssyncd is responsible for flushing inode or device's data by extracting the work from its queue. In addition, this processing also decrement the inode's i_count. If there are any remaining works in queue before this process terminates, we have unbalanced increment and decrement of i_count. Thus it can cause assertion failure of vn_count. The fix allows xyssyncd to process any remaining work before it is shutdown.

SGI-PV: 945935
SGI-Modid: xfs-linux-melb:xfs-kern:203970a

Signed-off-by: Yingping Lu <[e-mail]>
Signed-off-by: Nathan Scott <[e-mail]>

fs/xfs/linux-2.6/xfs_super.c

···
 		timeleft = schedule_timeout_interruptible(timeleft);
 		/* swsusp */
 		try_to_freeze();
-		if (kthread_should_stop())
+		if (kthread_should_stop() && list_empty(&vfsp->vfs_sync_list))
 			break;
 
 		spin_lock(&vfsp->vfs_sync_lock);