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-rw-r--r--src/sys/include/os/vnode.h12
-rw-r--r--src/sys/os/vfs_subr.c21
2 files changed, 33 insertions, 0 deletions
diff --git a/src/sys/include/os/vnode.h b/src/sys/include/os/vnode.h
index 9054a55..1bef1e2 100644
--- a/src/sys/include/os/vnode.h
+++ b/src/sys/include/os/vnode.h
@@ -88,6 +88,7 @@ struct vop_rw_data {
*/
struct vop {
int(*lookup)(struct vop_lookup_args *args);
+ int(*reclaim)(struct vnode *vp, int flags);
ssize_t(*write)(struct vop_rw_data *data);
ssize_t(*read)(struct vop_rw_data *data);
};
@@ -164,4 +165,15 @@ ssize_t vop_write(struct vnode *vp, char *data, off_t off, size_t len);
*/
ssize_t vop_read(struct vnode *vp, char *data, off_t off, size_t len);
+/*
+ * Reclaim the resources tied to a specific vnode
+ *
+ * @vp: Vnode to reclaim
+ * @flags: Optional flags
+ *
+ * Returns zero on success, otherwise a less than zero value
+ * on failure.
+ */
+int vop_reclaim(struct vnode *vp, int flags);
+
#endif /* !_OS_VNODE_H_ */
diff --git a/src/sys/os/vfs_subr.c b/src/sys/os/vfs_subr.c
index a06b64f..6cb7767 100644
--- a/src/sys/os/vfs_subr.c
+++ b/src/sys/os/vfs_subr.c
@@ -203,3 +203,24 @@ vop_read(struct vnode *vp, char *data, off_t off, size_t len)
rwdata.off = off;
return vops->read(&rwdata);
}
+
+int
+vop_reclaim(struct vnode *vp, int flags)
+{
+ struct vop *vops;
+
+ if (vp == NULL) {
+ return -EINVAL;
+ }
+
+ /* Grab the virtual operations */
+ if ((vops = vp->vops) == NULL) {
+ return -EIO;
+ }
+
+ if (vops->reclaim == NULL) {
+ return -ENOTSUP;
+ }
+
+ return vops->reclaim(vp, flags);
+}