fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / arch / m32r / kernel / signal.c

diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c
index 50311eb..4b15605 100644 (file)
--- a/arch/m32r/kernel/signal.c
+++ b/arch/m32r/kernel/signal.c
@@ -10,7 +10,6 @@
  *  2000-06-20  Pentium III FXSR, SSE support by Gareth Hughes
  */
 
-#include <linux/config.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
@@ -22,7 +21,7 @@
 #include <linux/unistd.h>
 #include <linux/stddef.h>
 #include <linux/personality.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <asm/cacheflush.h>
 #include <asm/ucontext.h>
 #include <asm/uaccess.h>
@@ -34,9 +33,9 @@
 int do_signal(struct pt_regs *, sigset_t *);
 
 asmlinkage int
-sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize,
+sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
                  unsigned long r2, unsigned long r3, unsigned long r4,
-                 unsigned long r5, unsigned long r6, struct pt_regs regs)
+                 unsigned long r5, unsigned long r6, struct pt_regs *regs)
 {
        sigset_t saveset, newset;
 
@@ -54,21 +53,21 @@ sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize,
        recalc_sigpending();
        spin_unlock_irq(&current->sighand->siglock);
 
-       regs.r0 = -EINTR;
+       regs->r0 = -EINTR;
        while (1) {
                current->state = TASK_INTERRUPTIBLE;
                schedule();
-               if (do_signal(&regs, &saveset))
-                       return regs.r0;
+               if (do_signal(regs, &saveset))
+                       return regs->r0;
        }
 }
 
 asmlinkage int
 sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
                unsigned long r2, unsigned long r3, unsigned long r4,
-               unsigned long r5, unsigned long r6, struct pt_regs regs)
+               unsigned long r5, unsigned long r6, struct pt_regs *regs)
 {
-       return do_sigaltstack(uss, uoss, regs.spu);
+       return do_sigaltstack(uss, uoss, regs->spu);
 }
 
 
@@ -79,8 +78,8 @@ sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
 struct rt_sigframe
 {
        int sig;
-       struct siginfo *pinfo;
-       void *puc;
+       struct siginfo __user *pinfo;
+       void __user *puc;
        struct siginfo info;
        struct ucontext uc;
 //     struct _fpstate fpstate;
@@ -110,17 +109,10 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
        COPY(r10);
        COPY(r11);
        COPY(r12);
-#if defined(CONFIG_ISA_M32R2) && defined(CONFIG_ISA_DSP_LEVEL2)
        COPY(acc0h);
        COPY(acc0l);
-       COPY(acc1h);
-       COPY(acc1l);
-#elif defined(CONFIG_ISA_M32R2) || defined(CONFIG_ISA_M32R)
-       COPY(acch);
-       COPY(accl);
-#else
-#error unknown isa configuration
-#endif
+       COPY(acc1h);            /* ISA_DSP_LEVEL2 only */
+       COPY(acc1l);            /* ISA_DSP_LEVEL2 only */
        COPY(psw);
        COPY(bpc);
        COPY(bbpsw);
@@ -140,11 +132,10 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
 asmlinkage int
 sys_rt_sigreturn(unsigned long r0, unsigned long r1,
                 unsigned long r2, unsigned long r3, unsigned long r4,
-                unsigned long r5, unsigned long r6, struct pt_regs regs)
+                unsigned long r5, unsigned long r6, struct pt_regs *regs)
 {
-       struct rt_sigframe __user *frame = (struct rt_sigframe __user *)regs.spu;
+       struct rt_sigframe __user *frame = (struct rt_sigframe __user *)regs->spu;
        sigset_t set;
-       stack_t st;
        int result;
 
        if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
@@ -158,14 +149,11 @@ sys_rt_sigreturn(unsigned long r0, unsigned long r1,
        recalc_sigpending();
        spin_unlock_irq(&current->sighand->siglock);
 
-       if (restore_sigcontext(&regs, &frame->uc.uc_mcontext, &result))
+       if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &result))
                goto badframe;
 
-       if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st)))
+       if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->spu) == -EFAULT)
                goto badframe;
-       /* It is more difficult to avoid calling this function than to
-          call it and ignore errors.  */
-       do_sigaltstack(&st, NULL, regs.spu);
 
        return result;
 
@@ -199,17 +187,10 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
        COPY(r10);
        COPY(r11);
        COPY(r12);
-#if defined(CONFIG_ISA_M32R2) && defined(CONFIG_ISA_DSP_LEVEL2)
        COPY(acc0h);
        COPY(acc0l);
-       COPY(acc1h);
-       COPY(acc1l);
-#elif defined(CONFIG_ISA_M32R2) || defined(CONFIG_ISA_M32R)
-       COPY(acch);
-       COPY(accl);
-#else
-#error unknown isa configuration
-#endif
+       COPY(acc1h);            /* ISA_DSP_LEVEL2 only */
+       COPY(acc1l);            /* ISA_DSP_LEVEL2 only */
        COPY(psw);
        COPY(bpc);
        COPY(bbpsw);
@@ -341,13 +322,12 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
        /* Set up the stack frame */
        setup_rt_frame(sig, ka, info, oldset, regs);
 
-       if (!(ka->sa.sa_flags & SA_NODEFER)) {
-               spin_lock_irq(&current->sighand->siglock);
-               sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+       spin_lock_irq(&current->sighand->siglock);
+       sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+       if (!(ka->sa.sa_flags & SA_NODEFER))
                sigaddset(&current->blocked,sig);
-               recalc_sigpending();
-               spin_unlock_irq(&current->sighand->siglock);
-       }
+       recalc_sigpending();
+       spin_unlock_irq(&current->sighand->siglock);
 }
 
 /*
@@ -371,10 +351,8 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
        if (!user_mode(regs))
                return 1;
 
-       if (current->flags & PF_FREEZE) {
-               refrigerator(0);
+       if (try_to_freeze()) 
                goto no_signal;
-       }
 
        if (!oldset)
                oldset = &current->blocked;