From bcc4260f3bc7ead8e8472e4cb091857092745ce1 Mon Sep 17 00:00:00 2001
From: Xin LI <delphij@FreeBSD.org>
Date: Thu, 3 Aug 2006 03:55:52 +0000
Subject: When the volume is being downgraded from a read-write mode, mark it
 as clean.

PR:		kern/85366
Submitted by:	Dan Lukes <dan at obluda dot cz>
MFC After:	2 weeks
---
 sys/fs/msdosfs/msdosfs_vfsops.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sys/fs/msdosfs/msdosfs_vfsops.c b/sys/fs/msdosfs/msdosfs_vfsops.c
index c9efa9005620..a485632d3d1f 100644
--- a/sys/fs/msdosfs/msdosfs_vfsops.c
+++ b/sys/fs/msdosfs/msdosfs_vfsops.c
@@ -283,6 +283,10 @@ msdosfs_mount(struct mount *mp, struct thread *td)
 			g_access(pmp->pm_cp, 0, -1, 0);
 			g_topology_unlock();
 			PICKUP_GIANT();
+			/* Now the volume is clean. Mark it. */
+			error = markvoldirty(pmp, 0);
+			if (error && (flags & FORCECLOSE) == 0)
+				return (error);
 		} else if ((pmp->pm_flags & MSDOSFSMNT_RONLY) &&
 		    !vfs_flagopt(mp->mnt_optnew, "ro", NULL, 0)) {
 			/*
-- 
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