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
131 	memcpy(&lock->fh, NFS_FH(file_inode(fl->fl_file)), sizeof(struct nfs_fh));  in nlmclnt_setlockargs()
135 				(unsigned int)fl->fl_u.nfs_fl.owner->pid,  in nlmclnt_setlockargs()
137 	lock->svid = fl->fl_u.nfs_fl.owner->pid;  in nlmclnt_setlockargs()
138 	lock->fl.fl_start = fl->fl_start;  in nlmclnt_setlockargs()
139 	lock->fl.fl_end = fl->fl_end;  in nlmclnt_setlockargs()
140 	lock->fl.fl_type = fl->fl_type;  in nlmclnt_setlockargs()
145 	WARN_ON_ONCE(req->a_args.lock.fl.fl_ops != NULL);  in nlmclnt_release_lockargs()
155 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()
165 	if (!fl->fl_u.nfs_fl.owner) {  in nlmclnt_proc()
171 	nlmclnt_setlockargs(call, fl);  in nlmclnt_proc()
174 		if (fl->fl_type != F_UNLCK) {  in nlmclnt_proc()
176 			status = nlmclnt_lock(call, fl);  in nlmclnt_proc()
178 			status = nlmclnt_unlock(call, fl);  in nlmclnt_proc()
180 		status = nlmclnt_test(call, fl);  in nlmclnt_proc()
183 	fl->fl_ops->fl_release_private(fl);  in nlmclnt_proc()
184 	fl->fl_ops = NULL;  in nlmclnt_proc()
202 			locks_init_lock(&call->a_args.lock.fl);  in nlm_alloc_call()
203 			locks_init_lock(&call->a_res.lock.fl);  in nlm_alloc_call()
416 nlmclnt_test(struct nlm_rqst *req, struct file_lock *fl)  in nlmclnt_test()  argument
420 	status = nlmclnt_call(nfs_file_cred(fl->fl_file), req, NLMPROC_TEST);  in nlmclnt_test()
426 			fl->fl_type = F_UNLCK;  in nlmclnt_test()
432 			fl->fl_start = req->a_res.lock.fl.fl_start;  in nlmclnt_test()
433 			fl->fl_end = req->a_res.lock.fl.fl_end;  in nlmclnt_test()
434 			fl->fl_type = req->a_res.lock.fl.fl_type;  in nlmclnt_test()
435 			fl->fl_pid = 0;  in nlmclnt_test()
445 static void nlmclnt_locks_copy_lock(struct file_lock *new, struct file_lock *fl)  in nlmclnt_locks_copy_lock()  argument
447 	spin_lock(&fl->fl_u.nfs_fl.owner->host->h_lock);  in nlmclnt_locks_copy_lock()
448 	new->fl_u.nfs_fl.state = fl->fl_u.nfs_fl.state;  in nlmclnt_locks_copy_lock()
449 	new->fl_u.nfs_fl.owner = nlm_get_lockowner(fl->fl_u.nfs_fl.owner);  in nlmclnt_locks_copy_lock()
450 	list_add_tail(&new->fl_u.nfs_fl.list, &fl->fl_u.nfs_fl.owner->host->h_granted);  in nlmclnt_locks_copy_lock()
451 	spin_unlock(&fl->fl_u.nfs_fl.owner->host->h_lock);  in nlmclnt_locks_copy_lock()
454 static void nlmclnt_locks_release_private(struct file_lock *fl)  in nlmclnt_locks_release_private()  argument
456 	spin_lock(&fl->fl_u.nfs_fl.owner->host->h_lock);  in nlmclnt_locks_release_private()
457 	list_del(&fl->fl_u.nfs_fl.list);  in nlmclnt_locks_release_private()
458 	spin_unlock(&fl->fl_u.nfs_fl.owner->host->h_lock);  in nlmclnt_locks_release_private()
459 	nlm_put_lockowner(fl->fl_u.nfs_fl.owner);  in nlmclnt_locks_release_private()
467 static void nlmclnt_locks_init_private(struct file_lock *fl, struct nlm_host *host)  in nlmclnt_locks_init_private()  argument
469 	fl->fl_u.nfs_fl.state = 0;  in nlmclnt_locks_init_private()
470 	fl->fl_u.nfs_fl.owner = nlm_find_lockowner(host, fl->fl_owner);  in nlmclnt_locks_init_private()
471 	INIT_LIST_HEAD(&fl->fl_u.nfs_fl.list);  in nlmclnt_locks_init_private()
472 	fl->fl_ops = &nlmclnt_lock_ops;  in nlmclnt_locks_init_private()
475 static int do_vfs_lock(struct file_lock *fl)  in do_vfs_lock()  argument
478 	switch (fl->fl_flags & (FL_POSIX|FL_FLOCK)) {  in do_vfs_lock()
480 			res = posix_lock_file_wait(fl->fl_file, fl);  in do_vfs_lock()
483 			res = flock_lock_file_wait(fl->fl_file, fl);  in do_vfs_lock()
512 nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)  in nlmclnt_lock()  argument
514 	struct rpc_cred *cred = nfs_file_cred(fl->fl_file);  in nlmclnt_lock()
518 	unsigned char fl_flags = fl->fl_flags;  in nlmclnt_lock()
526 	fl->fl_flags |= FL_ACCESS;  in nlmclnt_lock()
527 	status = do_vfs_lock(fl);  in nlmclnt_lock()
528 	fl->fl_flags = fl_flags;  in nlmclnt_lock()
532 	block = nlmclnt_prepare_block(host, fl);  in nlmclnt_lock()
541 		fl->fl_u.nfs_fl.state = host->h_state;  in nlmclnt_lock()
564 		if (nlmclnt_cancel(host, req->a_args.block, fl) == 0)  in nlmclnt_lock()
571 		if (fl->fl_u.nfs_fl.state != host->h_state) {  in nlmclnt_lock()
576 		fl->fl_flags |= FL_SLEEP;  in nlmclnt_lock()
577 		if (do_vfs_lock(fl) < 0)  in nlmclnt_lock()
580 		fl->fl_flags = fl_flags;  in nlmclnt_lock()
604 	fl_type = fl->fl_type;  in nlmclnt_lock()
605 	fl->fl_type = F_UNLCK;  in nlmclnt_lock()
607 	do_vfs_lock(fl);  in nlmclnt_lock()
609 	fl->fl_type = fl_type;  in nlmclnt_lock()
610 	fl->fl_flags = fl_flags;  in nlmclnt_lock()
619 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()
630 	nlmclnt_setlockargs(req, fl);  in nlmclnt_reclaim()
633 	status = nlmclnt_call(nfs_file_cred(fl->fl_file), req, NLMPROC_LOCK);  in nlmclnt_reclaim()
638 				"(errno %d, status %d)\n", fl->fl_pid,  in nlmclnt_reclaim()
660 nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)  in nlmclnt_unlock()  argument
665 	unsigned char fl_flags = fl->fl_flags;  in nlmclnt_unlock()
672 	fl->fl_flags |= FL_EXISTS;  in nlmclnt_unlock()
674 	status = do_vfs_lock(fl);  in nlmclnt_unlock()
676 	fl->fl_flags = fl_flags;  in nlmclnt_unlock()
683 	status = nlmclnt_async_call(nfs_file_cred(fl->fl_file), req,  in nlmclnt_unlock()
743 static int nlmclnt_cancel(struct nlm_host *host, int block, struct file_lock *fl)  in nlmclnt_cancel()  argument
756 	nlmclnt_setlockargs(req, fl);  in nlmclnt_cancel()
760 	status = nlmclnt_async_call(nfs_file_cred(fl->fl_file), req,  in nlmclnt_cancel()