xref: /dflybsd-src/share/man/man9/vput.9 (revision 86d7f5d305c6adaa56ff4582ece9859d73106103)
186d7f5d3SJohn Marino.\" Copyright (c) 1996 Doug Rabson
286d7f5d3SJohn Marino.\"
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2786d7f5d3SJohn Marino.\" $FreeBSD: src/share/man/man9/vput.9,v 1.6.2.3 2001/12/17 11:30:19 ru Exp $
2886d7f5d3SJohn Marino.\"
2986d7f5d3SJohn Marino.Dd May 5, 2007
3086d7f5d3SJohn Marino.Dt VPUT 9
3186d7f5d3SJohn Marino.Os
3286d7f5d3SJohn Marino.Sh NAME
3386d7f5d3SJohn Marino.Nm vput
3486d7f5d3SJohn Marino.Nd "Decrement the primary reference count for a vnode and unlock it"
3586d7f5d3SJohn Marino.Sh SYNOPSIS
3686d7f5d3SJohn Marino.In sys/param.h
3786d7f5d3SJohn Marino.In sys/vnode.h
3886d7f5d3SJohn Marino.Ft void
3986d7f5d3SJohn Marino.Fn vput "struct vnode *vp"
4086d7f5d3SJohn Marino.Sh DESCRIPTION
4186d7f5d3SJohn MarinoDecrement the vnode's primary reference count (via the
4286d7f5d3SJohn Marino.Fa v_sysref
4386d7f5d3SJohn Marinofield) and unlock the vnode.
4486d7f5d3SJohn Marino.Bl -tag -width ".Fa vp"
4586d7f5d3SJohn Marino.It Fa vp
4686d7f5d3SJohn MarinoThe vnode in question.
4786d7f5d3SJohn Marino.El
4886d7f5d3SJohn Marino.Pp
4986d7f5d3SJohn MarinoThis operation is functionally equivalent to calling
5086d7f5d3SJohn Marino.Xr vn_unlock 9
5186d7f5d3SJohn Marinofollowed by
5286d7f5d3SJohn Marino.Xr vrele 9 .
5386d7f5d3SJohn MarinoReleasing the last primary reference on a vnode will cause it to be
5486d7f5d3SJohn Marinodeactivated and either moved to the free list or cached.
5586d7f5d3SJohn MarinoVnodes with namecache and/or VM objects are typically marked as being cached
5686d7f5d3SJohn Marinounless the system needs the memory for other purposes.
5786d7f5d3SJohn Marino.Sh SEE ALSO
5886d7f5d3SJohn Marino.Xr vdrop 9 ,
5986d7f5d3SJohn Marino.Xr vget 9 ,
6086d7f5d3SJohn Marino.Xr vhold 9 ,
6186d7f5d3SJohn Marino.Xr vnode 9 ,
6286d7f5d3SJohn Marino.Xr vn_lock 9 ,
6386d7f5d3SJohn Marino.Xr vn_unlock 9 ,
6486d7f5d3SJohn Marino.Xr vref 9 ,
6586d7f5d3SJohn Marino.Xr vrele 9
6686d7f5d3SJohn Marino.Sh AUTHORS
6786d7f5d3SJohn MarinoThis manual page was written by
6886d7f5d3SJohn Marino.An Doug Rabson .
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