34 static void	nlmclnt_locks_init_private(struct file_lock *fl, struct nlm_host *host);
129 static void nlmclnt_setlockargs(struct nlm_rqst *req, struct file_lock *fl)  in nlmclnt_setlockargs()  argument
136 	memcpy(&lock->fh, NFS_FH(file_inode(fl->fl_file)), sizeof(struct nfs_fh));  in nlmclnt_setlockargs()
140 				(unsigned int)fl->fl_u.nfs_fl.owner->pid,  in nlmclnt_setlockargs()
142 	lock->svid = fl->fl_u.nfs_fl.owner->pid;  in nlmclnt_setlockargs()
143 	lock->fl.fl_start = fl->fl_start;  in nlmclnt_setlockargs()
144 	lock->fl.fl_end = fl->fl_end;  in nlmclnt_setlockargs()
145 	lock->fl.fl_type = fl->fl_type;  in nlmclnt_setlockargs()
150 	WARN_ON_ONCE(req->a_args.lock.fl.fl_ops != NULL);  in nlmclnt_release_lockargs()
161 int nlmclnt_proc(struct nlm_host *host, int cmd, struct file_lock *fl, void *data)  in nlmclnt_proc()  argument
174 	nlmclnt_locks_init_private(fl, host);  in nlmclnt_proc()
175 	if (!fl->fl_u.nfs_fl.owner) {  in nlmclnt_proc()
181 	nlmclnt_setlockargs(call, fl);  in nlmclnt_proc()
185 		if (fl->fl_type != F_UNLCK) {  in nlmclnt_proc()
187 			status = nlmclnt_lock(call, fl);  in nlmclnt_proc()
189 			status = nlmclnt_unlock(call, fl);  in nlmclnt_proc()
191 		status = nlmclnt_test(call, fl);  in nlmclnt_proc()
194 	fl->fl_ops->fl_release_private(fl);  in nlmclnt_proc()
195 	fl->fl_ops = NULL;  in nlmclnt_proc()
213 			locks_init_lock(&call->a_args.lock.fl);  in nlm_alloc_call()
214 			locks_init_lock(&call->a_res.lock.fl);  in nlm_alloc_call()
431 nlmclnt_test(struct nlm_rqst *req, struct file_lock *fl)  in nlmclnt_test()  argument
435 	status = nlmclnt_call(nfs_file_cred(fl->fl_file), req, NLMPROC_TEST);  in nlmclnt_test()
441 			fl->fl_type = F_UNLCK;  in nlmclnt_test()
447 			fl->fl_start = req->a_res.lock.fl.fl_start;  in nlmclnt_test()
448 			fl->fl_end = req->a_res.lock.fl.fl_end;  in nlmclnt_test()
449 			fl->fl_type = req->a_res.lock.fl.fl_type;  in nlmclnt_test()
450 			fl->fl_pid = -req->a_res.lock.fl.fl_pid;  in nlmclnt_test()
463 static void nlmclnt_locks_copy_lock(struct file_lock *new, struct file_lock *fl)  in nlmclnt_locks_copy_lock()  argument
465 	spin_lock(&fl->fl_u.nfs_fl.owner->host->h_lock);  in nlmclnt_locks_copy_lock()
466 	new->fl_u.nfs_fl.state = fl->fl_u.nfs_fl.state;  in nlmclnt_locks_copy_lock()
467 	new->fl_u.nfs_fl.owner = nlmclnt_get_lockowner(fl->fl_u.nfs_fl.owner);  in nlmclnt_locks_copy_lock()
468 	list_add_tail(&new->fl_u.nfs_fl.list, &fl->fl_u.nfs_fl.owner->host->h_granted);  in nlmclnt_locks_copy_lock()
469 	spin_unlock(&fl->fl_u.nfs_fl.owner->host->h_lock);  in nlmclnt_locks_copy_lock()
472 static void nlmclnt_locks_release_private(struct file_lock *fl)  in nlmclnt_locks_release_private()  argument
474 	spin_lock(&fl->fl_u.nfs_fl.owner->host->h_lock);  in nlmclnt_locks_release_private()
475 	list_del(&fl->fl_u.nfs_fl.list);  in nlmclnt_locks_release_private()
476 	spin_unlock(&fl->fl_u.nfs_fl.owner->host->h_lock);  in nlmclnt_locks_release_private()
477 	nlmclnt_put_lockowner(fl->fl_u.nfs_fl.owner);  in nlmclnt_locks_release_private()
485 static void nlmclnt_locks_init_private(struct file_lock *fl, struct nlm_host *host)  in nlmclnt_locks_init_private()  argument
487 	fl->fl_u.nfs_fl.state = 0;  in nlmclnt_locks_init_private()
488 	fl->fl_u.nfs_fl.owner = nlmclnt_find_lockowner(host, fl->fl_owner);  in nlmclnt_locks_init_private()
489 	INIT_LIST_HEAD(&fl->fl_u.nfs_fl.list);  in nlmclnt_locks_init_private()
490 	fl->fl_ops = &nlmclnt_lock_ops;  in nlmclnt_locks_init_private()
493 static int do_vfs_lock(struct file_lock *fl)  in do_vfs_lock()  argument
495 	return locks_lock_file_wait(fl->fl_file, fl);  in do_vfs_lock()
519 nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)  in nlmclnt_lock()  argument
521 	const struct cred *cred = nfs_file_cred(fl->fl_file);  in nlmclnt_lock()
525 	unsigned char fl_flags = fl->fl_flags;  in nlmclnt_lock()
534 	fl->fl_flags |= FL_ACCESS;  in nlmclnt_lock()
535 	status = do_vfs_lock(fl);  in nlmclnt_lock()
536 	fl->fl_flags = fl_flags;  in nlmclnt_lock()
540 	nlmclnt_prepare_block(&block, host, fl);  in nlmclnt_lock()
556 		fl->fl_u.nfs_fl.state = host->h_state;  in nlmclnt_lock()
582 		if (nlmclnt_cancel(host, req->a_args.block, fl) == 0)  in nlmclnt_lock()
589 		if (fl->fl_u.nfs_fl.state != host->h_state) {  in nlmclnt_lock()
594 		fl->fl_flags |= FL_SLEEP;  in nlmclnt_lock()
595 		if (do_vfs_lock(fl) < 0)  in nlmclnt_lock()
598 		fl->fl_flags = fl_flags;  in nlmclnt_lock()
625 	fl_type = fl->fl_type;  in nlmclnt_lock()
626 	fl->fl_type = F_UNLCK;  in nlmclnt_lock()
628 	do_vfs_lock(fl);  in nlmclnt_lock()
630 	fl->fl_type = fl_type;  in nlmclnt_lock()
631 	fl->fl_flags = fl_flags;  in nlmclnt_lock()
640 nlmclnt_reclaim(struct nlm_host *host, struct file_lock *fl,  in nlmclnt_reclaim()  argument
646 	locks_init_lock(&req->a_args.lock.fl);  in nlmclnt_reclaim()
647 	locks_init_lock(&req->a_res.lock.fl);  in nlmclnt_reclaim()
651 	nlmclnt_setlockargs(req, fl);  in nlmclnt_reclaim()
654 	status = nlmclnt_call(nfs_file_cred(fl->fl_file), req, NLMPROC_LOCK);  in nlmclnt_reclaim()
659 				"(errno %d, status %d)\n", fl->fl_pid,  in nlmclnt_reclaim()
681 nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)  in nlmclnt_unlock()  argument
686 	unsigned char fl_flags = fl->fl_flags;  in nlmclnt_unlock()
693 	fl->fl_flags |= FL_EXISTS;  in nlmclnt_unlock()
695 	status = do_vfs_lock(fl);  in nlmclnt_unlock()
697 	fl->fl_flags = fl_flags;  in nlmclnt_unlock()
704 	status = nlmclnt_async_call(nfs_file_cred(fl->fl_file), req,  in nlmclnt_unlock()
781 static int nlmclnt_cancel(struct nlm_host *host, int block, struct file_lock *fl)  in nlmclnt_cancel()  argument
794 	nlmclnt_setlockargs(req, fl);  in nlmclnt_cancel()
798 	status = nlmclnt_async_call(nfs_file_cred(fl->fl_file), req,  in nlmclnt_cancel()