VGONE(9) BSD Kernel Developer's Manual VGONE(9)NAME
vgone -- prepare a vnode for reuse
SYNOPSIS
#include <sys/param.h>
#include <sys/vnode.h>
void
vgone(struct vnode *vp);
DESCRIPTION
The vgone() function prepares the vnode to be destroyed. The preparation includes the cleaning of all file system specific data and the
removal from its mount point vnode list.
If the vnode has a v_usecount of zero, and its VI_DOOMED flag is not set, it is moved to the head of the free list as in most cases the vnode
is about to be reused, or its file system is being unmounted.
The vgone() function takes an exclusively locked vnode, and returns with the vnode exclusively locked.
SEE ALSO vnode(9)AUTHORS
This manual page was written by Chad David <davidc@acns.ab.ca>.
BSD November 12, 2010 BSD
Check Out this Related Man Page
INSMNTQUE(9) BSD Kernel Developer's Manual INSMNTQUE(9)NAME
insmntque, insmntque1 -- associate a vnode with a mount
SYNOPSIS
#include <sys/param.h>
#include <sys/vnode.h>
int
insmntque(struct vnode *vp, struct mount *mp);
int
insmntque1(struct vnode *vp, struct mount *mp, void (*dtr)(struct vnode *, void *), void *dtr_arg);
DESCRIPTION
The insmntque() function associates a vnode with a mount. This includes updating v_mount for the vnode, and inserting the vnode into the
mount's vnode list.
The mount reference count is incremented for each vnode added to the mount, and that reference is decremented by vgone(9).
The mount's interlock is held while the vnode is inserted. For MP-safe file systems, the vnode must be exclusively locked.
On failure, insmntque() calls vgone(9) on the supplied vnode, and then drops the vnode lock and reference. If more elaborated cleanup after
insmntque() failure is needed, the insmntque1() function may be used instead. The dtr argument is a pointer to a function that is called on
failure. This function may perform any custom cleanup. The vnode pointer is supplied as the first argument to dtr. The dtr_arg argument is
the second, supplying any additional context needed.
RETURN VALUES
The insmntque() function will always return 0, unless the file system is currently being unmounted in which case it may return EBUSY. Also,
insmntque() may be forced to insert the vnode into the mount's vnode list by setting the VV_FORCEINSMQ flag in the vnode v_flag, even if the
file system is being unmounted.
SEE ALSO vgone(9)AUTHORS
This manual page was written by Chad David <davidc@acns.ab.ca>.
BSD September 8, 2008 BSD
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