869 static int flock_lock_inode(struct inode *inode, struct file_lock *request)  in flock_lock_inode()  argument
878 	ctx = locks_get_lock_context(inode, request->fl_type);  in flock_lock_inode()
880 		if (request->fl_type != F_UNLCK)  in flock_lock_inode()
882 		return (request->fl_flags & FL_EXISTS) ? -ENOENT : 0;  in flock_lock_inode()
885 	if (!(request->fl_flags & FL_ACCESS) && (request->fl_type != F_UNLCK)) {  in flock_lock_inode()
892 	if (request->fl_flags & FL_ACCESS)  in flock_lock_inode()
896 		if (request->fl_file != fl->fl_file)  in flock_lock_inode()
898 		if (request->fl_type == fl->fl_type)  in flock_lock_inode()
905 	if (request->fl_type == F_UNLCK) {  in flock_lock_inode()
906 		if ((request->fl_flags & FL_EXISTS) && !found)  in flock_lock_inode()
913 		if (!flock_locks_conflict(request, fl))  in flock_lock_inode()
916 		if (!(request->fl_flags & FL_SLEEP))  in flock_lock_inode()
919 		locks_insert_block(fl, request);  in flock_lock_inode()
922 	if (request->fl_flags & FL_ACCESS)  in flock_lock_inode()
924 	locks_copy_lock(new_fl, request);  in flock_lock_inode()
937 static int __posix_lock_file(struct inode *inode, struct file_lock *request, struct file_lock *conf…  in __posix_lock_file()  argument
949 	ctx = locks_get_lock_context(inode, request->fl_type);  in __posix_lock_file()
951 		return (request->fl_type == F_UNLCK) ? 0 : -ENOMEM;  in __posix_lock_file()
959 	if (!(request->fl_flags & FL_ACCESS) &&  in __posix_lock_file()
960 	    (request->fl_type != F_UNLCK ||  in __posix_lock_file()
961 	     request->fl_start != 0 || request->fl_end != OFFSET_MAX)) {  in __posix_lock_file()
972 	if (request->fl_type != F_UNLCK) {  in __posix_lock_file()
974 			if (!posix_locks_conflict(request, fl))  in __posix_lock_file()
979 			if (!(request->fl_flags & FL_SLEEP))  in __posix_lock_file()
987 			if (likely(!posix_locks_deadlock(request, fl))) {  in __posix_lock_file()
989 				__locks_insert_block(fl, request);  in __posix_lock_file()
998 	if (request->fl_flags & FL_ACCESS)  in __posix_lock_file()
1003 		if (posix_same_owner(request, fl))  in __posix_lock_file()
1009 		if (!posix_same_owner(request, fl))  in __posix_lock_file()
1013 		if (request->fl_type == fl->fl_type) {  in __posix_lock_file()
1018 			if (fl->fl_end < request->fl_start - 1)  in __posix_lock_file()
1023 			if (fl->fl_start - 1 > request->fl_end)  in __posix_lock_file()
1031 			if (fl->fl_start > request->fl_start)  in __posix_lock_file()
1032 				fl->fl_start = request->fl_start;  in __posix_lock_file()
1034 				request->fl_start = fl->fl_start;  in __posix_lock_file()
1035 			if (fl->fl_end < request->fl_end)  in __posix_lock_file()
1036 				fl->fl_end = request->fl_end;  in __posix_lock_file()
1038 				request->fl_end = fl->fl_end;  in __posix_lock_file()
1043 			request = fl;  in __posix_lock_file()
1049 			if (fl->fl_end < request->fl_start)  in __posix_lock_file()
1051 			if (fl->fl_start > request->fl_end)  in __posix_lock_file()
1053 			if (request->fl_type == F_UNLCK)  in __posix_lock_file()
1055 			if (fl->fl_start < request->fl_start)  in __posix_lock_file()
1060 			if (fl->fl_end > request->fl_end) {  in __posix_lock_file()
1064 			if (fl->fl_start >= request->fl_start) {  in __posix_lock_file()
1082 				locks_copy_lock(new_fl, request);  in __posix_lock_file()
1083 				request = new_fl;  in __posix_lock_file()
1085 				locks_insert_lock_ctx(request, &fl->fl_list);  in __posix_lock_file()
1103 		if (request->fl_type == F_UNLCK) {  in __posix_lock_file()
1104 			if (request->fl_flags & FL_EXISTS)  in __posix_lock_file()
1113 		locks_copy_lock(new_fl, request);  in __posix_lock_file()
1128 		right->fl_start = request->fl_end + 1;  in __posix_lock_file()
1132 		left->fl_end = request->fl_start - 1;  in __posix_lock_file()