NAME¶

VOP_INACTIVE, VOP_RECLAIM — reclaim file system resources for a vnode

SYNOPSIS¶

#include <sys/param.h>
#include <sys/vnode.h>

int
VOP_INACTIVE(struct vnode *vp, struct thread *td);

int
VOP_RECLAIM(struct vnode *vp, struct thread *td);

DESCRIPTION¶

The arguments are:

vp

The vnode being reclaimed.

VOP_INACTIVE() is usually called when the kernel is no longer using the vnode. However, there is no guarantee that it will be called at all, for example if the last reference was dropped while the vnode lock could not be upgraded to exclusive without sleeping. This may be because the reference count reaches zero or it may be that the file system is being forcibly unmounted while there are open files. It can be used to reclaim space on the last close of an ‘open but deleted’ file.

VOP_RECLAIM() is called when a vnode is being reused for a different file system. Any file system specific resources associated with the vnode should be freed.

LOCKS¶

For both VOP_INACTIVE() and VOP_RECLAIM(), the vp will be exclusively locked on entry, and must be left exclusively locked on return.

SEE ALSO¶

vnode(9)

AUTHORS¶

This manual page was written by Doug Rabson.