+/*
+ * grant one or more locks (readlocks are allowed to jump the queue if the
+ * first lock in the queue is itself a readlock)
+ * - the caller must hold the vnode lock
+ */
+static void afs_grant_locks(struct afs_vnode *vnode, struct file_lock *fl)
+{
+ struct file_lock *p, *_p;
+
+ list_move_tail(&fl->fl_u.afs.link, &vnode->granted_locks);
+ if (fl->fl_type == F_RDLCK) {
+ list_for_each_entry_safe(p, _p, &vnode->pending_locks,
+ fl_u.afs.link) {
+ if (p->fl_type == F_RDLCK) {
+ p->fl_u.afs.state = AFS_LOCK_GRANTED;
+ list_move_tail(&p->fl_u.afs.link,
+ &vnode->granted_locks);
+ wake_up(&p->fl_wait);
+ }
+ }
+ }
+}
+