- if (cmd == F_SETLKW) CANCELPT_BEGIN;
- r = syscall(SYS_fcntl, fd, cmd, arg);
- if (cmd == F_SETLKW) CANCELPT_END;
- return r;
+ if (cmd == F_SETLKW) return syscall_cp(SYS_fcntl, fd, cmd, arg);
+ if (cmd == F_GETOWN) {
+ struct f_owner_ex ex;
+ int ret = __syscall(SYS_fcntl, fd, F_GETOWN_EX, &ex);
+ if (ret == -EINVAL) return __syscall(SYS_fcntl, fd, cmd, arg);
+ if (ret) return __syscall_ret(ret);
+ return ex.type == F_OWNER_PGRP ? -ex.pid : ex.pid;
+ }
+ return syscall(SYS_fcntl, fd, cmd, arg);