From 7a769775d8d44a3eb6d0830e6a238e87d55db007 Mon Sep 17 00:00:00 2001
From: TwinbornPlate75 <42514046+TwinbornPlate75@users.noreply.github.com>
Date: Mon, 27 Oct 2025 00:12:44 +0800
Subject: [PATCH] kernel/manual_su: Define mmap_lock as mmap_sem for old kernel
 (#495)

---
 kernel/manual_su.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kernel/manual_su.h b/kernel/manual_su.h
index 735e7fac..ac4e86ce 100644
--- a/kernel/manual_su.h
+++ b/kernel/manual_su.h
@@ -5,6 +5,10 @@
 #include <linux/sched.h>
 #include <linux/version.h>
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 7, 0)
+#define mmap_lock mmap_sem
+#endif
+
 #define KSU_SU_VERIFIED_BIT (1UL << 0)
 #define KSU_TOKEN_LENGTH 32
 #define KSU_TOKEN_ENV_NAME "KSU_AUTH_TOKEN"
@@ -25,4 +29,4 @@ char* ksu_generate_auth_token(void);
 bool ksu_verify_auth_token(const char *token);
 void ksu_cleanup_expired_tokens(void);
 extern bool current_verified;
-#endif
\ No newline at end of file
+#endif