vget -- get a vnode from the free list
vget(struct vnode *vp, int lockflag, struct thread *td);
Get a vnode from the free list and increment its reference count.
vp the vnode to remove from the free list
lockflag if non-zero, the vnode will also be locked
When not in use, vnodes are kept on a free list. The vnodes still reference
valid files but may be reused to refer to a new file at any time.
Often, these vnodes are also held in caches in the system, such as the
When a vnode which is on the free list is used again, for instance if the
vnode was found in the name cache as a result of a call to VOP_LOOKUP(9)
then the new user must call vget() to increment the reference count and
remove it from the free list.
vnode(9), vput(9), vref(9), vrele(9)
This man page was written by Doug Rabson.
FreeBSD 5.2.1 July 24, 1996 FreeBSD 5.2.1 [ Back ]