|
Unix VPS
Support
FAQ
Network
Miscellaneous
|
| VHOLD(9) | FreeBSD Kernel Developer's Manual | VHOLD(9) |
NAME
vhold, vdrop,
vdropl —
SYNOPSIS
#include <sys/param.h>
#include <sys/vnode.h>
void
vhold(struct
vnode *vp);
void
vholdl(struct
vnode *vp);
void
vdrop(struct
vnode *vp);
void
vdropl(struct
vnode *vp);
DESCRIPTION
Thevhold() and vholdl()
functions increment the v_holdcnt of the given vnode. If
the vnode has already been added to the free list and is still referenced, it
will be removed.
The vdrop() and
vdropl() functions decrement the
v_holdcnt of the vnode. If the holdcount is less than
or equal to zero prior to calling vdrop() or
vdropl(), the system will panic. If the vnode is no
longer referenced, it will be freed.
vhold() and
vdrop() lock the vnode interlock while
vholdl() and vdropl() expect
the interlock to already be held.
SEE ALSO
vnode(9)AUTHORS
This manual page was written by Chad David <davidc@acns.ab.ca>.| April 1, 2007 | FreeBSD 13.1-RELEASE |
Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.