x86: convert to ksignal

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

1 files changed, 17 insertions, 20 deletions

diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index b0460cd7de5a..cf1a471a18a2 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -309,7 +309,7 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
 /*
  * Determine which stack to use..
  */
-static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
+static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
                                  size_t frame_size,
                                  void __user **fpstate)
 {
@@ -319,16 +319,13 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
         sp = regs->sp;
 
         /* This is the X/Open sanctioned signal stack switching.  */
-        if (ka->sa.sa_flags & SA_ONSTACK) {
-                if (sas_ss_flags(sp) == 0)
-                        sp = current->sas_ss_sp + current->sas_ss_size;
-        }
-
+        if (ksig->ka.sa.sa_flags & SA_ONSTACK)
+                sp = sigsp(sp, ksig);
         /* This is the legacy signal stack switching. */
         else if ((regs->ss & 0xffff) != __USER32_DS &&
-                !(ka->sa.sa_flags & SA_RESTORER) &&
-                 ka->sa.sa_restorer)
-                sp = (unsigned long) ka->sa.sa_restorer;
+                !(ksig->ka.sa.sa_flags & SA_RESTORER) &&
+                 ksig->ka.sa.sa_restorer)
+                sp = (unsigned long) ksig->ka.sa.sa_restorer;
 
         if (used_math()) {
                 unsigned long fx_aligned, math_size;
@@ -347,7 +344,7 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
         return (void __user *) sp;
 }
 
-int ia32_setup_frame(int sig, struct k_sigaction *ka,
+int ia32_setup_frame(int sig, struct ksignal *ksig,
                      compat_sigset_t *set, struct pt_regs *regs)
 {
         struct sigframe_ia32 __user *frame;
@@ -366,7 +363,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
                 0x80cd,         /* int $0x80 */
         };
 
-        frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate);
+        frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate);
 
         if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
                 return -EFAULT;
@@ -383,8 +380,8 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
                         return -EFAULT;
         }
 
-        if (ka->sa.sa_flags & SA_RESTORER) {
-                restorer = ka->sa.sa_restorer;
+        if (ksig->ka.sa.sa_flags & SA_RESTORER) {
+                restorer = ksig->ka.sa.sa_restorer;
         } else {
                 /* Return stub is in 32bit vsyscall page */
                 if (current->mm->context.vdso)
@@ -409,7 +406,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
 
         /* Set up registers for signal handler */
         regs->sp = (unsigned long) frame;
-        regs->ip = (unsigned long) ka->sa.sa_handler;
+        regs->ip = (unsigned long) ksig->ka.sa.sa_handler;
 
         /* Make -mregparm=3 work */
         regs->ax = sig;
@@ -425,7 +422,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
         return 0;
 }
 
-int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
                         compat_sigset_t *set, struct pt_regs *regs)
 {
         struct rt_sigframe_ia32 __user *frame;
@@ -446,7 +443,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                 0,
         };
 
-        frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate);
+        frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate);
 
         if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
                 return -EFAULT;
@@ -464,8 +461,8 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                 put_user_ex(0, &frame->uc.uc_link);
                 err |= __compat_save_altstack(&frame->uc.uc_stack, regs->sp);
 
-                if (ka->sa.sa_flags & SA_RESTORER)
-                        restorer = ka->sa.sa_restorer;
+                if (ksig->ka.sa.sa_flags & SA_RESTORER)
+                        restorer = ksig->ka.sa.sa_restorer;
                 else
                         restorer = VDSO32_SYMBOL(current->mm->context.vdso,
                                                  rt_sigreturn);
@@ -478,7 +475,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                 put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
         } put_user_catch(err);
 
-        err |= copy_siginfo_to_user32(&frame->info, info);
+        err |= copy_siginfo_to_user32(&frame->info, &ksig->info);
         err |= ia32_setup_sigcontext(&frame->uc.uc_mcontext, fpstate,
                                      regs, set->sig[0]);
         err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
@@ -488,7 +485,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 
         /* Set up registers for signal handler */
         regs->sp = (unsigned long) frame;
-        regs->ip = (unsigned long) ka->sa.sa_handler;
+        regs->ip = (unsigned long) ksig->ka.sa.sa_handler;
 
         /* Make -mregparm=3 work */
         regs->ax = sig;