commit 2cf0966683430b6468f36ca20515a33ca7f2403c
author Al Viro <viro@zeniv.linux.org.uk> Mon Jan 21 15:25:54 2013 -0500
committer Al Viro <viro@zeniv.linux.org.uk> Sun Mar 03 22:58:33 2013 -0500
tree 902080486ebd7988d1250914c3809c4de472a22b
parent 22d1a35da0e247a006c286842a1846acb4ffed4f

make SYSCALL_DEFINE<n>-generated wrappers do asmlinkage_protect

... and switch i386 to HAVE_SYSCALL_WRAPPERS, killing open-coded
uses of asmlinkage_protect() in a bunch of syscalls.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/x86/include/asm/syscalls.h

diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h
index 6cf0a9c..5f87b35 100644
--- a/arch/x86/include/asm/syscalls.h
+++ b/arch/x86/include/asm/syscalls.h
@@ -27,8 +27,8 @@
 long sys_rt_sigreturn(void);
 
 /* kernel/tls.c */
-asmlinkage int sys_set_thread_area(struct user_desc __user *);
-asmlinkage int sys_get_thread_area(struct user_desc __user *);
+asmlinkage long sys_set_thread_area(struct user_desc __user *);
+asmlinkage long sys_get_thread_area(struct user_desc __user *);
 
 /* X86_32 only */
 #ifdef CONFIG_X86_32

arch/x86/kernel/tls.c

diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index 9d9d2f9..f7fec09 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -3,13 +3,13 @@
 #include <linux/sched.h>
 #include <linux/user.h>
 #include <linux/regset.h>
+#include <linux/syscalls.h>
 
 #include <asm/uaccess.h>
 #include <asm/desc.h>
 #include <asm/ldt.h>
 #include <asm/processor.h>
 #include <asm/proto.h>
-#include <asm/syscalls.h>
 
 #include "tls.h"
 
@@ -89,11 +89,9 @@
 	return 0;
 }
 
-asmlinkage int sys_set_thread_area(struct user_desc __user *u_info)
+SYSCALL_DEFINE1(set_thread_area, struct user_desc __user *, u_info)
 {
-	int ret = do_set_thread_area(current, -1, u_info, 1);
-	asmlinkage_protect(1, ret, u_info);
-	return ret;
+	return do_set_thread_area(current, -1, u_info, 1);
 }
 
 
@@ -139,11 +137,9 @@
 	return 0;
 }
 
-asmlinkage int sys_get_thread_area(struct user_desc __user *u_info)
+SYSCALL_DEFINE1(get_thread_area, struct user_desc __user *, u_info)
 {
-	int ret = do_get_thread_area(current, -1, u_info);
-	asmlinkage_protect(1, ret, u_info);
-	return ret;
+	return do_get_thread_area(current, -1, u_info);
 }
 
 int regset_tls_active(struct task_struct *target,

arch/x86/um/tls_32.c

diff --git a/arch/x86/um/tls_32.c b/arch/x86/um/tls_32.c
index 5f5feff..80ffa5b 100644
--- a/arch/x86/um/tls_32.c
+++ b/arch/x86/um/tls_32.c
@@ -5,6 +5,7 @@
 
 #include <linux/percpu.h>
 #include <linux/sched.h>
+#include <linux/syscalls.h>
 #include <asm/uaccess.h>
 #include <os.h>
 #include <skas.h>
@@ -274,7 +275,7 @@
 	goto out;
 }
 
-int sys_set_thread_area(struct user_desc __user *user_desc)
+SYSCALL_DEFINE1(set_thread_area, struct user_desc __user *, user_desc)
 {
 	struct user_desc info;
 	int idx, ret;
@@ -322,7 +323,7 @@
 	return set_tls_entry(child, &info, idx, 0);
 }
 
-int sys_get_thread_area(struct user_desc __user *user_desc)
+SYSCALL_DEFINE1(get_thread_area, struct user_desc __user *, user_desc)
 {
 	struct user_desc info;
 	int idx, ret;