From 90eb6f5eb2abd2530ee7126eba9d1ce08769ff14 Mon Sep 17 00:00:00 2001
From: Thomas Schoebel-Theuer <schoebel@bell.site>
Date: Wed, 26 Jun 2013 14:45:07 +0200
Subject: [PATCH] mars: generic pre-patch for mars

Mostly introduces missing EXPORT_SYMBOL().
Should have exactly zero impact onto the kernel.

This is the generic version which exports all sys_*() system
calls. This should not introduce any additional maintenance pain
because that interfaces has to be stable anyway due to POSIX etc.
---
 fs/open.c                | 1 -
 fs/utimes.c              | 2 ++
 include/linux/major.h    | 1 +
 include/linux/syscalls.h | 4 ++++
 mm/page_alloc.c          | 2 ++
 mm/swap_state.c          | 1 +
 6 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/fs/open.c b/fs/open.c
index cf1d34f..bfceac7 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -1099,7 +1099,6 @@ out_unlock:
 	spin_unlock(&files->file_lock);
 	return -EBADF;
 }
-EXPORT_SYMBOL(sys_close);
 
 /*
  * This routine simulates a hangup on the tty, to arrange that users
diff --git a/fs/utimes.c b/fs/utimes.c
index ba653f3..f021ea4 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -1,3 +1,4 @@
+#include <linux/module.h>
 #include <linux/compiler.h>
 #include <linux/file.h>
 #include <linux/fs.h>
@@ -170,6 +171,7 @@ long do_utimes(int dfd, const char __user *filename, struct timespec *times,
 out:
 	return error;
 }
+EXPORT_SYMBOL(do_utimes);
 
 SYSCALL_DEFINE4(utimensat, int, dfd, const char __user *, filename,
 		struct timespec __user *, utimes, int, flags)
diff --git a/include/linux/major.h b/include/linux/major.h
index 6a8ca98..faf6692 100644
--- a/include/linux/major.h
+++ b/include/linux/major.h
@@ -146,6 +146,7 @@
 #define UNIX98_PTY_SLAVE_MAJOR	(UNIX98_PTY_MASTER_MAJOR+UNIX98_PTY_MAJOR_COUNT)
 
 #define DRBD_MAJOR		147
+#define MARS_MAJOR		148
 #define RTF_MAJOR		150
 #define RAW_MAJOR		162
 
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 3de3acb..2fcc5bd 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -73,6 +73,7 @@ struct file_handle;
 #include <asm/siginfo.h>
 #include <asm/signal.h>
 #include <linux/unistd.h>
+#include <linux/export.h>
 #include <linux/quota.h>
 #include <linux/key.h>
 #include <trace/syscall.h>
@@ -241,12 +242,15 @@ extern struct trace_event_functions exit_syscall_print_funcs;
 		return (long) SYSC##name(__SC_CAST##x(__VA_ARGS__));	\
 	}								\
 	SYSCALL_ALIAS(sys##name, SyS##name);				\
+	EXPORT_SYMBOL(sys##name);					\
 	static inline long SYSC##name(__SC_DECL##x(__VA_ARGS__))
 
 #else /* CONFIG_HAVE_SYSCALL_WRAPPERS */
 
 #define SYSCALL_DEFINE(name) asmlinkage long sys_##name
 #define __SYSCALL_DEFINEx(x, name, ...)					\
+	asmlinkage long sys##name(__SC_DECL##x(__VA_ARGS__));		\
+	EXPORT_SYMBOL(sys##name);					\
 	asmlinkage long sys##name(__SC_DECL##x(__VA_ARGS__))
 
 #endif /* CONFIG_HAVE_SYSCALL_WRAPPERS */
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 39d530a..d9baf24 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -192,6 +192,7 @@ static char * const zone_names[MAX_NR_ZONES] = {
 };
 
 int min_free_kbytes = 1024;
+EXPORT_SYMBOL(min_free_kbytes);
 
 static unsigned long __meminitdata nr_kernel_pages;
 static unsigned long __meminitdata nr_all_pages;
@@ -5044,6 +5045,7 @@ void setup_per_zone_wmarks(void)
 	/* update totalreserve_pages */
 	calculate_totalreserve_pages();
 }
+EXPORT_SYMBOL(setup_per_zone_wmarks);
 
 /*
  * The inactive anon list should be small enough that the VM never has to
diff --git a/mm/swap_state.c b/mm/swap_state.c
index 1fa9220..1edbcb6 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -42,6 +42,7 @@ struct address_space swapper_space = {
 	.i_mmap_nonlinear = LIST_HEAD_INIT(swapper_space.i_mmap_nonlinear),
 	.backing_dev_info = &swap_backing_dev_info,
 };
+EXPORT_SYMBOL(swapper_space);
 
 #define INC_CACHE_INFO(x)	do { swap_cache_info.x++; } while (0)
 
-- 
1.9.3