From c1649d586a7e25e0d623e59525b114c32a1bbc15 Mon Sep 17 00:00:00 2001
From: Cutie Deng <CutieDeng@iCloud.com>
Date: Wed, 30 Apr 2025 00:55:20 +0800
Subject: [PATCH] fix mount api

- mount syscall allow `source` to be null
---
 lib/std/os/linux.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/std/os/linux.zig b/lib/std/os/linux.zig
index 00390c0800..58a2b196b3 100644
--- a/lib/std/os/linux.zig
+++ b/lib/std/os/linux.zig
@@ -906,7 +906,7 @@ pub fn mknodat(dirfd: i32, path: [*:0]const u8, mode: u32, dev: u32) usize {
     return syscall4(.mknodat, @as(usize, @bitCast(@as(isize, dirfd))), @intFromPtr(path), mode, dev);
 }
 
-pub fn mount(special: [*:0]const u8, dir: [*:0]const u8, fstype: ?[*:0]const u8, flags: u32, data: usize) usize {
+pub fn mount(special: ?[*:0]const u8, dir: [*:0]const u8, fstype: ?[*:0]const u8, flags: u32, data: usize) usize {
     return syscall5(.mount, @intFromPtr(special), @intFromPtr(dir), @intFromPtr(fstype), flags, data);
 }