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From: Kirk McKusick <mckusick@FreeBSD.org>
Date: Sun, 8 Apr 2012 06:18:18 +0000 (UTC)
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Subject: svn commit: r234025 - head/sys/fs/msdosfs
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Author: mckusick
Date: Sun Apr  8 06:18:18 2012
New Revision: 234025
URL: http://svn.freebsd.org/changeset/base/234025

Log:
  Add I/O accounting to msdos filesystem.
  
  Suggested and reviewed by: kib

Modified:
  head/sys/fs/msdosfs/msdosfs_vfsops.c

Modified: head/sys/fs/msdosfs/msdosfs_vfsops.c
==============================================================================
--- head/sys/fs/msdosfs/msdosfs_vfsops.c	Sun Apr  8 06:14:49 2012	(r234024)
+++ head/sys/fs/msdosfs/msdosfs_vfsops.c	Sun Apr  8 06:18:18 2012	(r234025)
@@ -401,6 +401,8 @@ msdosfs_mount(struct mount *mp)
 		return error;
 	}
 
+	if (devvp->v_type == VCHR && devvp->v_rdev != NULL)
+		devvp->v_rdev->si_mountpt = mp;
 	vfs_mountedfrom(mp, from);
 #ifdef MSDOSFS_DEBUG
 	printf("msdosfs_mount(): mp %p, pmp %p, inusemap %p\n", mp, pmp, pmp->pm_inusemap);
@@ -843,6 +845,8 @@ msdosfs_unmount(struct mount *mp, int mn
 	}
 #endif
 	DROP_GIANT();
+	if (pmp->pm_devvp->v_type == VCHR && pmp->pm_devvp->v_rdev != NULL)
+		pmp->pm_devvp->v_rdev->si_mountpt = NULL;
 	g_topology_lock();
 	g_vfs_close(pmp->pm_cp);
 	g_topology_unlock();