865 static int flock_lock_inode(struct inode *inode, struct file_lock *request)  in flock_lock_inode()  argument
874 	ctx = locks_get_lock_context(inode, request->fl_type);  in flock_lock_inode()
876 		if (request->fl_type != F_UNLCK)  in flock_lock_inode()
878 		return (request->fl_flags & FL_EXISTS) ? -ENOENT : 0;  in flock_lock_inode()
881 	if (!(request->fl_flags & FL_ACCESS) && (request->fl_type != F_UNLCK)) {  in flock_lock_inode()
888 	if (request->fl_flags & FL_ACCESS)  in flock_lock_inode()
892 		if (request->fl_file != fl->fl_file)  in flock_lock_inode()
894 		if (request->fl_type == fl->fl_type)  in flock_lock_inode()
901 	if (request->fl_type == F_UNLCK) {  in flock_lock_inode()
902 		if ((request->fl_flags & FL_EXISTS) && !found)  in flock_lock_inode()
909 		if (!flock_locks_conflict(request, fl))  in flock_lock_inode()
912 		if (!(request->fl_flags & FL_SLEEP))  in flock_lock_inode()
915 		locks_insert_block(fl, request);  in flock_lock_inode()
918 	if (request->fl_flags & FL_ACCESS)  in flock_lock_inode()
920 	locks_copy_lock(new_fl, request);  in flock_lock_inode()
933 static int __posix_lock_file(struct inode *inode, struct file_lock *request, struct file_lock *conf…  in __posix_lock_file()  argument
945 	ctx = locks_get_lock_context(inode, request->fl_type);  in __posix_lock_file()
947 		return (request->fl_type == F_UNLCK) ? 0 : -ENOMEM;  in __posix_lock_file()
955 	if (!(request->fl_flags & FL_ACCESS) &&  in __posix_lock_file()
956 	    (request->fl_type != F_UNLCK ||  in __posix_lock_file()
957 	     request->fl_start != 0 || request->fl_end != OFFSET_MAX)) {  in __posix_lock_file()
968 	if (request->fl_type != F_UNLCK) {  in __posix_lock_file()
970 			if (!posix_locks_conflict(request, fl))  in __posix_lock_file()
975 			if (!(request->fl_flags & FL_SLEEP))  in __posix_lock_file()
983 			if (likely(!posix_locks_deadlock(request, fl))) {  in __posix_lock_file()
985 				__locks_insert_block(fl, request);  in __posix_lock_file()
994 	if (request->fl_flags & FL_ACCESS)  in __posix_lock_file()
999 		if (posix_same_owner(request, fl))  in __posix_lock_file()
1005 		if (!posix_same_owner(request, fl))  in __posix_lock_file()
1009 		if (request->fl_type == fl->fl_type) {  in __posix_lock_file()
1014 			if (fl->fl_end < request->fl_start - 1)  in __posix_lock_file()
1019 			if (fl->fl_start - 1 > request->fl_end)  in __posix_lock_file()
1027 			if (fl->fl_start > request->fl_start)  in __posix_lock_file()
1028 				fl->fl_start = request->fl_start;  in __posix_lock_file()
1030 				request->fl_start = fl->fl_start;  in __posix_lock_file()
1031 			if (fl->fl_end < request->fl_end)  in __posix_lock_file()
1032 				fl->fl_end = request->fl_end;  in __posix_lock_file()
1034 				request->fl_end = fl->fl_end;  in __posix_lock_file()
1039 			request = fl;  in __posix_lock_file()
1045 			if (fl->fl_end < request->fl_start)  in __posix_lock_file()
1047 			if (fl->fl_start > request->fl_end)  in __posix_lock_file()
1049 			if (request->fl_type == F_UNLCK)  in __posix_lock_file()
1051 			if (fl->fl_start < request->fl_start)  in __posix_lock_file()
1056 			if (fl->fl_end > request->fl_end) {  in __posix_lock_file()
1060 			if (fl->fl_start >= request->fl_start) {  in __posix_lock_file()
1078 				locks_copy_lock(new_fl, request);  in __posix_lock_file()
1079 				request = new_fl;  in __posix_lock_file()
1081 				locks_insert_lock_ctx(request, &fl->fl_list);  in __posix_lock_file()
1099 		if (request->fl_type == F_UNLCK) {  in __posix_lock_file()
1100 			if (request->fl_flags & FL_EXISTS)  in __posix_lock_file()
1109 		locks_copy_lock(new_fl, request);  in __posix_lock_file()
1124 		right->fl_start = request->fl_end + 1;  in __posix_lock_file()
1128 		left->fl_end = request->fl_start - 1;  in __posix_lock_file()