| vgone.9 (176604) | vgone.9 (215176) |
|---|---|
| 1.\" 2.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice(s), this list of conditions and the following disclaimer as --- 10 unchanged lines hidden (view full) --- 19.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 22.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 25.\" DAMAGE. 26.\" | 1.\" 2.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice(s), this list of conditions and the following disclaimer as --- 10 unchanged lines hidden (view full) --- 19.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 22.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 25.\" DAMAGE. 26.\" |
| 27.\" $FreeBSD: head/share/man/man9/vgone.9 176604 2008-02-26 20:11:37Z davidc $ | 27.\" $FreeBSD: head/share/man/man9/vgone.9 215176 2010-11-12 12:07:36Z pluknet $ |
| 28.\" | 28.\" |
| 29.Dd November 21, 2001 | 29.Dd November 12, 2010 |
| 30.Dt VGONE 9 31.Os 32.Sh NAME | 30.Dt VGONE 9 31.Os 32.Sh NAME |
| 33.Nm vgone , vgonel | 33.Nm vgone |
| 34.Nd "prepare a vnode for reuse" 35.Sh SYNOPSIS 36.In sys/param.h 37.In sys/vnode.h 38.Ft void 39.Fn vgone "struct vnode *vp" | 34.Nd "prepare a vnode for reuse" 35.Sh SYNOPSIS 36.In sys/param.h 37.In sys/vnode.h 38.Ft void 39.Fn vgone "struct vnode *vp" |
| 40.Ft void 41.Fn vgonel "struct vnode *vp" "struct thread *td" | |
| 42.Sh DESCRIPTION | 40.Sh DESCRIPTION |
| 41The |
|
| 43.Fn vgone | 42.Fn vgone |
| 44and 45.Fn vgonel 46prepare a vnode for reuse by another file system. | 43function prepares the vnode to be destroyed. |
| 47The preparation includes the cleaning of all file system specific data and 48the removal from its mount point vnode list. 49.Pp 50If the vnode has a 51.Va v_usecount 52of zero, and its 53.Dv VI_DOOMED 54flag is not set, it is moved to the head of the free list 55as in most cases the vnode 56is about to be reused, or its file system is being unmounted. 57.Pp | 44The preparation includes the cleaning of all file system specific data and 45the removal from its mount point vnode list. 46.Pp 47If the vnode has a 48.Va v_usecount 49of zero, and its 50.Dv VI_DOOMED 51flag is not set, it is moved to the head of the free list 52as in most cases the vnode 53is about to be reused, or its file system is being unmounted. 54.Pp |
| 58The difference between | 55The |
| 59.Fn vgone | 56.Fn vgone |
| 60and 61.Fn vgonel 62is that 63.Fn vgone 64locks the vnode interlock and then calls 65.Fn vgonel 66while 67.Fn vgonel 68expects the interlock to already be locked. | 57function takes an exclusively locked vnode, and returns with the vnode 58exclusively locked. 59.Sh SEE ALSO 60.Xr vnode 9 |
| 69.Sh AUTHORS 70This manual page was written by 71.An Chad David Aq davidc@acns.ab.ca . | 61.Sh AUTHORS 62This manual page was written by 63.An Chad David Aq davidc@acns.ab.ca . |