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From: John Baldwin <jhb@FreeBSD.org>
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Subject: PERFORCE change 111696 for review
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http://perforce.freebsd.org/chv.cgi?CH=111696

Change 111696 by jhb@jhb_mutex on 2006/12/14 15:14:23

	Hold reference on the mountpoint across VFS_QUOTACTL().

Affected files ...

.. //depot/projects/smpng/sys/kern/vfs_syscalls.c#119 edit

Differences ...

==== //depot/projects/smpng/sys/kern/vfs_syscalls.c#119 (text+ko) ====

@@ -202,12 +202,14 @@
 	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = vn_start_write(nd.ni_vp, &vmp, V_WAIT | PCATCH);
 	mp = nd.ni_vp->v_mount;
+	vfs_ref(mp);
 	vrele(nd.ni_vp);
 	if (error)
 		goto out;
 	error = VFS_QUOTACTL(mp, uap->cmd, uap->uid, uap->arg, td);
 	vn_finished_write(vmp);
 out:
+	vfs_rel(mp);
 	VFS_UNLOCK_GIANT(vfslocked);
 	return (error);
 }