Mark up NULL with Dv.
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@ -1,4 +1,4 @@
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.\" $NetBSD: vfssubr.9,v 1.21 2014/02/22 10:05:54 hannken Exp $
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.\" $NetBSD: vfssubr.9,v 1.22 2014/02/22 11:08:05 wiz Exp $
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.\"
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.\" Copyright (c) 2003, 2005, 2006 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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@ -138,7 +138,9 @@ This function is used to synchronize access and to delay unmounting.
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The caller must hold a pre-existing reference to the mount.
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If
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.Fa nextp
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is not NULL, the caller must hold the
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is not
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.Dv NULL ,
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the caller must hold the
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.Em mountlist_lock
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and
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.Fa nextp
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@ -157,7 +159,9 @@ is true, preserve the reference added by
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.Fn vfs_busy .
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If
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.Fa nextp
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is not NULL, the
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is not
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.Dv NULL ,
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the
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.Em mountlist_lock
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will be aquired and
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.Fa nextp
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