streamline old-kernel fallback path of pipe2 to use syscalls directly

[musl] / src / unistd / pipe2.c

diff --git a/src/unistd/pipe2.c b/src/unistd/pipe2.c
index 04e0c12..bbeabcb 100644 (file)
--- a/src/unistd/pipe2.c
+++ b/src/unistd/pipe2.c
@@ -8,15 +8,15 @@ int pipe2(int fd[2], int flag)
        if (!flag) return syscall(SYS_pipe, fd);
        int ret = __syscall(SYS_pipe2, fd, flag);
        if (ret != -ENOSYS) return __syscall_ret(ret);
-       ret = syscall(SYS_pipe, fd);
+       ret = __syscall(SYS_pipe, fd);
        if (ret) return __syscall_ret(ret);
        if (flag & O_CLOEXEC) {
-               fcntl(fd[0], F_SETFD, FD_CLOEXEC);
-               fcntl(fd[1], F_SETFD, FD_CLOEXEC);
+               __syscall(SYS_fcntl, fd[0], F_SETFD, FD_CLOEXEC);
+               __syscall(SYS_fcntl, fd[1], F_SETFD, FD_CLOEXEC);
        }
        if (flag & O_NONBLOCK) {
-               fcntl(fd[0], F_SETFL, fcntl(fd[0], F_GETFL) | O_NONBLOCK);
-               fcntl(fd[1], F_SETFL, fcntl(fd[1], F_GETFL) | O_NONBLOCK);
+               __syscall(SYS_fcntl, fd[0], F_SETFL, O_NONBLOCK);
+               __syscall(SYS_fcntl, fd[1], F_SETFL, O_NONBLOCK);
        }
        return 0;
 }