30 static void	nlmclnt_locks_init_private(struct file_lock *fl, struct nlm_host *host);
124 static void nlmclnt_setlockargs(struct nlm_rqst *req, struct file_lock *fl)  in nlmclnt_setlockargs()  argument
130 	memcpy(&lock->fh, NFS_FH(fl->fl_file->f_path.dentry->d_inode), sizeof(struct nfs_fh));  in nlmclnt_setlockargs()
134 				(unsigned int)fl->fl_u.nfs_fl.owner->pid,  in nlmclnt_setlockargs()
136 	lock->svid = fl->fl_u.nfs_fl.owner->pid;  in nlmclnt_setlockargs()
137 	lock->fl.fl_start = fl->fl_start;  in nlmclnt_setlockargs()
138 	lock->fl.fl_end = fl->fl_end;  in nlmclnt_setlockargs()
139 	lock->fl.fl_type = fl->fl_type;  in nlmclnt_setlockargs()
144 	BUG_ON(req->a_args.lock.fl.fl_ops != NULL);  in nlmclnt_release_lockargs()
154 int nlmclnt_proc(struct nlm_host *host, int cmd, struct file_lock *fl)  in nlmclnt_proc()  argument
164 	nlmclnt_locks_init_private(fl, host);  in nlmclnt_proc()
166 	nlmclnt_setlockargs(call, fl);  in nlmclnt_proc()
169 		if (fl->fl_type != F_UNLCK) {  in nlmclnt_proc()
171 			status = nlmclnt_lock(call, fl);  in nlmclnt_proc()
173 			status = nlmclnt_unlock(call, fl);  in nlmclnt_proc()
175 		status = nlmclnt_test(call, fl);  in nlmclnt_proc()
178 	fl->fl_ops->fl_release_private(fl);  in nlmclnt_proc()
179 	fl->fl_ops = NULL;  in nlmclnt_proc()
200 			locks_init_lock(&call->a_args.lock.fl);  in nlm_alloc_call()
201 			locks_init_lock(&call->a_res.lock.fl);  in nlm_alloc_call()
414 nlmclnt_test(struct nlm_rqst *req, struct file_lock *fl)  in nlmclnt_test()  argument
418 	status = nlmclnt_call(nfs_file_cred(fl->fl_file), req, NLMPROC_TEST);  in nlmclnt_test()
424 			fl->fl_type = F_UNLCK;  in nlmclnt_test()
430 			fl->fl_start = req->a_res.lock.fl.fl_start;  in nlmclnt_test()
431 			fl->fl_end = req->a_res.lock.fl.fl_end;  in nlmclnt_test()
432 			fl->fl_type = req->a_res.lock.fl.fl_type;  in nlmclnt_test()
433 			fl->fl_pid = 0;  in nlmclnt_test()
443 static void nlmclnt_locks_copy_lock(struct file_lock *new, struct file_lock *fl)  in nlmclnt_locks_copy_lock()  argument
445 	spin_lock(&fl->fl_u.nfs_fl.owner->host->h_lock);  in nlmclnt_locks_copy_lock()
446 	new->fl_u.nfs_fl.state = fl->fl_u.nfs_fl.state;  in nlmclnt_locks_copy_lock()
447 	new->fl_u.nfs_fl.owner = nlm_get_lockowner(fl->fl_u.nfs_fl.owner);  in nlmclnt_locks_copy_lock()
448 	list_add_tail(&new->fl_u.nfs_fl.list, &fl->fl_u.nfs_fl.owner->host->h_granted);  in nlmclnt_locks_copy_lock()
449 	spin_unlock(&fl->fl_u.nfs_fl.owner->host->h_lock);  in nlmclnt_locks_copy_lock()
452 static void nlmclnt_locks_release_private(struct file_lock *fl)  in nlmclnt_locks_release_private()  argument
454 	spin_lock(&fl->fl_u.nfs_fl.owner->host->h_lock);  in nlmclnt_locks_release_private()
455 	list_del(&fl->fl_u.nfs_fl.list);  in nlmclnt_locks_release_private()
456 	spin_unlock(&fl->fl_u.nfs_fl.owner->host->h_lock);  in nlmclnt_locks_release_private()
457 	nlm_put_lockowner(fl->fl_u.nfs_fl.owner);  in nlmclnt_locks_release_private()
465 static void nlmclnt_locks_init_private(struct file_lock *fl, struct nlm_host *host)  in nlmclnt_locks_init_private()  argument
467 	BUG_ON(fl->fl_ops != NULL);  in nlmclnt_locks_init_private()
468 	fl->fl_u.nfs_fl.state = 0;  in nlmclnt_locks_init_private()
469 	fl->fl_u.nfs_fl.owner = nlm_find_lockowner(host, fl->fl_owner);  in nlmclnt_locks_init_private()
470 	INIT_LIST_HEAD(&fl->fl_u.nfs_fl.list);  in nlmclnt_locks_init_private()
471 	fl->fl_ops = &nlmclnt_lock_ops;  in nlmclnt_locks_init_private()
474 static int do_vfs_lock(struct file_lock *fl)  in do_vfs_lock()  argument
477 	switch (fl->fl_flags & (FL_POSIX|FL_FLOCK)) {  in do_vfs_lock()
479 			res = posix_lock_file_wait(fl->fl_file, fl);  in do_vfs_lock()
482 			res = flock_lock_file_wait(fl->fl_file, fl);  in do_vfs_lock()
511 nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)  in nlmclnt_lock()  argument
513 	struct rpc_cred *cred = nfs_file_cred(fl->fl_file);  in nlmclnt_lock()
517 	unsigned char fl_flags = fl->fl_flags;  in nlmclnt_lock()
525 	fl->fl_flags |= FL_ACCESS;  in nlmclnt_lock()
526 	status = do_vfs_lock(fl);  in nlmclnt_lock()
527 	fl->fl_flags = fl_flags;  in nlmclnt_lock()
531 	block = nlmclnt_prepare_block(host, fl);  in nlmclnt_lock()
540 		fl->fl_u.nfs_fl.state = host->h_state;  in nlmclnt_lock()
563 		if (nlmclnt_cancel(host, req->a_args.block, fl) == 0)  in nlmclnt_lock()
570 		if (fl->fl_u.nfs_fl.state != host->h_state) {  in nlmclnt_lock()
575 		fl->fl_flags |= FL_SLEEP;  in nlmclnt_lock()
576 		if (do_vfs_lock(fl) < 0)  in nlmclnt_lock()
579 		fl->fl_flags = fl_flags;  in nlmclnt_lock()
603 	fl_type = fl->fl_type;  in nlmclnt_lock()
604 	fl->fl_type = F_UNLCK;  in nlmclnt_lock()
606 	do_vfs_lock(fl);  in nlmclnt_lock()
608 	fl->fl_type = fl_type;  in nlmclnt_lock()
609 	fl->fl_flags = fl_flags;  in nlmclnt_lock()
618 nlmclnt_reclaim(struct nlm_host *host, struct file_lock *fl)  in nlmclnt_reclaim()  argument
625 	locks_init_lock(&req->a_args.lock.fl);  in nlmclnt_reclaim()
626 	locks_init_lock(&req->a_res.lock.fl);  in nlmclnt_reclaim()
631 	nlmclnt_setlockargs(req, fl);  in nlmclnt_reclaim()
634 	status = nlmclnt_call(nfs_file_cred(fl->fl_file), req, NLMPROC_LOCK);  in nlmclnt_reclaim()
639 				"(errno %d, status %d)\n", fl->fl_pid,  in nlmclnt_reclaim()
661 nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)  in nlmclnt_unlock()  argument
666 	unsigned char fl_flags = fl->fl_flags;  in nlmclnt_unlock()
673 	fl->fl_flags |= FL_EXISTS;  in nlmclnt_unlock()
675 	status = do_vfs_lock(fl);  in nlmclnt_unlock()
677 	fl->fl_flags = fl_flags;  in nlmclnt_unlock()
684 	status = nlmclnt_async_call(nfs_file_cred(fl->fl_file), req,  in nlmclnt_unlock()
737 static int nlmclnt_cancel(struct nlm_host *host, int block, struct file_lock *fl)  in nlmclnt_cancel()  argument
750 	nlmclnt_setlockargs(req, fl);  in nlmclnt_cancel()
754 	status = nlmclnt_async_call(nfs_file_cred(fl->fl_file), req,  in nlmclnt_cancel()