X86: drivers: remove __dev* attributes.

[deliverable/linux.git] / arch / x86 / kernel / signal.c

diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index b17ed37c61a218d156a8eb33ea8986fd40faec16..d6bf1f34a6e90b396c11d457dec9600eb6a9af87 100644 (file)
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -22,6 +22,7 @@
 #include <linux/uaccess.h>
 #include <linux/user-return-notifier.h>
 #include <linux/uprobes.h>
+#include <linux/context_tracking.h>
 
 #include <asm/processor.h>
 #include <asm/ucontext.h>
@@ -363,10 +364,7 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                else
                        put_user_ex(0, &frame->uc.uc_flags);
                put_user_ex(0, &frame->uc.uc_link);
-               put_user_ex(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
-               put_user_ex(sas_ss_flags(regs->sp),
-                           &frame->uc.uc_stack.ss_flags);
-               put_user_ex(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+               err |= __save_altstack(&frame->uc.uc_stack, regs->sp);
 
                /* Set up to return from userspace.  */
                restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
@@ -413,7 +411,6 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        struct rt_sigframe __user *frame;
        void __user *fp = NULL;
        int err = 0;
-       struct task_struct *me = current;
 
        frame = get_sigframe(ka, regs, sizeof(struct rt_sigframe), &fp);
 
@@ -432,10 +429,7 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                else
                        put_user_ex(0, &frame->uc.uc_flags);
                put_user_ex(0, &frame->uc.uc_link);
-               put_user_ex(me->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
-               put_user_ex(sas_ss_flags(regs->sp),
-                           &frame->uc.uc_stack.ss_flags);
-               put_user_ex(me->sas_ss_size, &frame->uc.uc_stack.ss_size);
+               err |= __save_altstack(&frame->uc.uc_stack, regs->sp);
 
                /* Set up to return from userspace.  If provided, use a stub
                   already in userspace.  */
@@ -502,10 +496,7 @@ static int x32_setup_rt_frame(int sig, struct k_sigaction *ka,
                else
                        put_user_ex(0, &frame->uc.uc_flags);
                put_user_ex(0, &frame->uc.uc_link);
-               put_user_ex(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
-               put_user_ex(sas_ss_flags(regs->sp),
-                           &frame->uc.uc_stack.ss_flags);
-               put_user_ex(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+               err |= __compat_save_altstack(&frame->uc.uc_stack, regs->sp);
                put_user_ex(0, &frame->uc.uc__pad0);
 
                if (ka->sa.sa_flags & SA_RESTORER) {
@@ -651,7 +642,7 @@ long sys_rt_sigreturn(struct pt_regs *regs)
        if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
                goto badframe;
 
-       if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT)
+       if (restore_altstack(&frame->uc.uc_stack))
                goto badframe;
 
        return ax;
@@ -809,7 +800,7 @@ static void do_signal(struct pt_regs *regs)
 void
 do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
 {
-       rcu_user_exit();
+       user_exit();
 
 #ifdef CONFIG_X86_MCE
        /* notify userspace of pending MCEs */
@@ -831,7 +822,7 @@ do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
        if (thread_info_flags & _TIF_USER_RETURN_NOTIFY)
                fire_user_return_notifiers();
 
-       rcu_user_enter();
+       user_enter();
 }
 
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where)