vref -- increment the use count for a vnode
vref(struct vnode *vp);
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().
vget(9), vnode(9), vput(9), vrele(9)
This man page was written by Doug Rabson.
FreeBSD 5.2.1 July 24, 1996 FreeBSD 5.2.1 [ Back ]