SIMPLE SOLUTIONS

VREF(9FREEBSD) - man page online | system kernel interfaces

Increment the use count for a vnode.

Chapter
July 24, 1996
VREF(9)                           BSD Kernel Developer's Manual                           VREF(9)

NAME

vref — increment the use count for a vnode

SYNOPSIS

#include <sys/param.h> #include <sys/vnode.h> void vref(struct vnode *vp);

DESCRIPTION

Increment the v_usecount field of a vnode. vp the vnode to increment Each vnode maintains a reference count of how many parts of the system are using the vnode. This allows the system to detect when a vnode is no longer being used and can be safely recycled for a different file. Any code in the system which is using a vnode (e.g. during the operation of some algorithm or to store in a data structure) should call vref().

SEE ALSO

vget(9), vnode(9), vput(9), vrefcnt(9), vrele(9)

AUTHORS

This manual page was written by Doug Rabson.
BSD July 24, 1996 BSD
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VREF(9freebsd) referred by
refer to vget(9freebsd) | vnode(9freebsd) | vput(9freebsd) | vrefcnt(9freebsd) | vrele(9freebsd)