svn commit: r297523 - stable/10/sys/fs/devfs

[Alexander Motin]

Author: mav
Date: Sun Apr  3 14:38:02 2016
New Revision: 297523
URL: https://svnweb.freebsd.org/changeset/base/297523

Log:
  MFC r287109 (by trasz): Make it possible to forcibly unmount devfs.

Modified:
  stable/10/sys/fs/devfs/devfs_vfsops.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/fs/devfs/devfs_vfsops.c
==============================================================================
--- stable/10/sys/fs/devfs/devfs_vfsops.c	Sun Apr  3 11:18:20 2016	(r297522)
+++ stable/10/sys/fs/devfs/devfs_vfsops.c	Sun Apr  3 14:38:02 2016	(r297523)
@@ -182,6 +182,8 @@ devfs_unmount(struct mount *mp, int mntf
 	fmp = VFSTODEVFS(mp);
 	KASSERT(fmp->dm_mount != NULL,
 		("devfs_unmount unmounted devfs_mount"));
+	if (mntflags & MNT_FORCE)
+		flags |= FORCECLOSE;
 	/* There is 1 extra root vnode reference from devfs_mount(). */
 	error = vflush(mp, 1, flags, curthread);
 	if (error)