144 files changed, 461 insertions, 3464 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 8696c03a9d73..15740cf29bd4 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -24,6 +24,7 @@ config ALPHA
        select MODULES_USE_ELF_RELA
        select GENERIC_SIGALTSTACK
        select ODD_RT_SIGACTION
+        select OLD_SIGSUSPEND
        help
          The Alpha is a 64-bit general-purpose processor designed and
          marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index b5d0d0923699..63d27fb9b023 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -250,7 +250,6 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
        struct pt_regs *childregs = task_pt_regs(p);
        struct pt_regs *regs = current_pt_regs();
        struct switch_stack *childstack, *stack;
-        unsigned long settls;
        childstack = ((struct switch_stack *) childregs) - 1;
        childti->pcb.ksp = (unsigned long) childstack;
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index 02d02c047f17..b5f385055244 100644
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -113,16 +113,6 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
 }
 /*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
-/*
 * Do a signal return; undo the signal stack.
 */
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 67874b82a4ed..db3152d6dd88 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -56,6 +56,9 @@ config ARM
        select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
        select MODULES_USE_ELF_REL
        select CLONE_BACKWARDS
+        select GENERIC_SIGALTSTACK
+        select OLD_SIGSUSPEND3
+        select OLD_SIGACTION
        help
          The ARM series is a line of low-power-consumption RISC chip designs
          licensed by ARM Ltd and targeted at embedded applications and
diff --git a/arch/arm/include/asm/signal.h b/arch/arm/include/asm/signal.h
index a5076b9bd463..c0eb412aff04 100644
--- a/arch/arm/include/asm/signal.h
+++ b/arch/arm/include/asm/signal.h
@@ -16,13 +16,6 @@ typedef struct {
        unsigned long sig[_NSIG_WORDS];
 } sigset_t;
-struct old_sigaction {
-        __sighandler_t sa_handler;
-        old_sigset_t sa_mask;
-        unsigned long sa_flags;
-        __sigrestore_t sa_restorer;
-};
 #define __ARCH_HAS_SA_RESTORER
 #include <asm/sigcontext.h>
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index a4fda4e7a372..0cc57611fc4f 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -195,7 +195,7 @@
                CALL(sys_getcwd)
                CALL(sys_capget)
 /* 185 */       CALL(sys_capset)
-                CALL(sys_sigaltstack_wrapper)
+                CALL(sys_sigaltstack)
                CALL(sys_sendfile)
                CALL(sys_ni_syscall)            /* getpmsg */
                CALL(sys_ni_syscall)            /* putpmsg */
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index a6c301e90a3b..3248cde504ed 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -514,11 +514,6 @@ sys_rt_sigreturn_wrapper:
                b       sys_rt_sigreturn
 ENDPROC(sys_rt_sigreturn_wrapper)
-sys_sigaltstack_wrapper:
-                ldr     r2, [sp, #S_OFF + S_SP]
-                b       do_sigaltstack
-ENDPROC(sys_sigaltstack_wrapper)
 sys_statfs64_wrapper:
                teq     r1, #88
                moveq   r1, #84
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 56f72d257ebd..07429a23c720 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -45,48 +45,6 @@ const unsigned long sigreturn_codes[7] = {
        MOV_R7_NR_RT_SIGRETURN, SWI_SYS_RT_SIGRETURN, SWI_THUMB_RT_SIGRETURN,
 };
-/*
- * atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage int sys_sigsuspend(int restart, unsigned long oldmask, old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
-asmlinkage int 
-sys_sigaction(int sig, const struct old_sigaction __user *act,
-              struct old_sigaction __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        if (act) {
-                old_sigset_t mask;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
-}
 #ifdef CONFIG_CRUNCH
 static int preserve_crunch_context(struct crunch_sigframe __user *frame)
 {
@@ -300,7 +258,7 @@ asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
        if (restore_sigframe(regs, &frame->sig))
                goto badframe;
-        if (do_sigaltstack(&frame->sig.uc.uc_stack, NULL, regs->ARM_sp) == -EFAULT)
+        if (restore_altstack(&frame->sig.uc.uc_stack))
                goto badframe;
        return regs->ARM_r0;
@@ -486,7 +444,6 @@ setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
               sigset_t *set, struct pt_regs *regs)
 {
        struct rt_sigframe __user *frame = get_sigframe(ka, regs, sizeof(*frame));
-        stack_t stack;
        int err = 0;
        if (!frame)
@@ -497,12 +454,7 @@ setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
        __put_user_error(0, &frame->sig.uc.uc_flags, err);
        __put_user_error(NULL, &frame->sig.uc.uc_link, err);
-        memset(&stack, 0, sizeof(stack));
+        err |= __save_altstack(&frame->sig.uc.uc_stack, regs->ARM_sp);
-        stack.ss_sp = (void __user *)current->sas_ss_sp;
-        stack.ss_flags = sas_ss_flags(regs->ARM_sp);
-        stack.ss_size = current->sas_ss_size;
-        err |= __copy_to_user(&frame->sig.uc.uc_stack, &stack, sizeof(stack));
        err |= setup_sigframe(&frame->sig, regs, set);
        if (err == 0)
                err = setup_return(regs, ka, frame->sig.retcode, frame, usig);
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index f8f362aafee9..1f27c58f44ad 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -6,10 +6,15 @@ config ARM64
        select CLONE_BACKWARDS
        select COMMON_CLK
        select GENERIC_CLOCKEVENTS
+        select GENERIC_COMPAT_RT_SIGACTION
+        select GENERIC_COMPAT_RT_SIGPENDING
+        select GENERIC_COMPAT_RT_SIGPROCMASK
+        select GENERIC_COMPAT_RT_SIGQUEUEINFO
        select GENERIC_HARDIRQS_NO_DEPRECATED
        select GENERIC_IOMAP
        select GENERIC_IRQ_PROBE
        select GENERIC_IRQ_SHOW
+        select GENERIC_SIGALTSTACK
        select GENERIC_SMP_IDLE_THREAD
        select GENERIC_TIME_VSYSCALL
        select HARDIRQS_SW_RESEND
@@ -204,6 +209,8 @@ config COMPAT
        depends on !ARM64_64K_PAGES
        select COMPAT_BINFMT_ELF
        select HAVE_UID16
+        select OLD_SIGSUSPEND3
+        select COMPAT_OLD_SIGACTION
        help
          This option enables support for a 32-bit EL0 running under a 64-bit
          kernel at EL1. AArch32-specific components such as system calls,
diff --git a/arch/arm64/include/asm/syscalls.h b/arch/arm64/include/asm/syscalls.h
index 20d63b290665..48fe7c600e98 100644
--- a/arch/arm64/include/asm/syscalls.h
+++ b/arch/arm64/include/asm/syscalls.h
@@ -24,8 +24,6 @@
 * System call wrappers implemented in kernel/entry.S.
 */
 asmlinkage long sys_rt_sigreturn_wrapper(void);
-asmlinkage long sys_sigaltstack_wrapper(const stack_t __user *uss,
-                                        stack_t __user *uoss);
 #include <asm-generic/syscalls.h>
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index 5ef47ba3ed45..e60e386178d1 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -93,7 +93,7 @@ __SYSCALL(68,  sys_ni_syscall)			/* 68 was sys_sgetmask */
 __SYSCALL(69,  sys_ni_syscall)                  /* 69 was sys_ssetmask */
 __SYSCALL(70,  sys_setreuid16)
 __SYSCALL(71,  sys_setregid16)
-__SYSCALL(72,  compat_sys_sigsuspend)
+__SYSCALL(72,  sys_sigsuspend)
 __SYSCALL(73,  compat_sys_sigpending)
 __SYSCALL(74,  sys_sethostname)
 __SYSCALL(75,  compat_sys_setrlimit)
@@ -207,7 +207,7 @@ __SYSCALL(182, sys_chown16)
 __SYSCALL(183, sys_getcwd)
 __SYSCALL(184, sys_capget)
 __SYSCALL(185, sys_capset)
-__SYSCALL(186, compat_sys_sigaltstack_wrapper)
+__SYSCALL(186, compat_sys_sigaltstack)
 __SYSCALL(187, compat_sys_sendfile)
 __SYSCALL(188, sys_ni_syscall)                  /* 188 reserved */
 __SYSCALL(189, sys_ni_syscall)                  /* 189 reserved */
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 9c94f404ded6..514d6098dbee 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -677,10 +677,5 @@ ENTRY(sys_rt_sigreturn_wrapper)
        b       sys_rt_sigreturn
 ENDPROC(sys_rt_sigreturn_wrapper)
-ENTRY(sys_sigaltstack_wrapper)
-        ldr     x2, [sp, #S_SP]
-        b       sys_sigaltstack
-ENDPROC(sys_sigaltstack_wrapper)
 ENTRY(handle_arch_irq)
        .quad   0
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
index abd756315cb5..890a591f75dd 100644
--- a/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@ -149,8 +149,7 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
        if (restore_sigframe(regs, frame))
                goto badframe;
-        if (do_sigaltstack(&frame->uc.uc_stack,
+        if (restore_altstack(&frame->uc.uc_stack))
-                           NULL, regs->sp) == -EFAULT)
                goto badframe;
        return regs->regs[0];
@@ -164,12 +163,6 @@ badframe:
        return 0;
 }
-asmlinkage long sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
-                                unsigned long sp)
-{
-        return do_sigaltstack(uss, uoss, sp);
-}
 static int setup_sigframe(struct rt_sigframe __user *sf,
                          struct pt_regs *regs, sigset_t *set)
 {
@@ -250,7 +243,6 @@ static int setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
                          sigset_t *set, struct pt_regs *regs)
 {
        struct rt_sigframe __user *frame;
-        stack_t stack;
        int err = 0;
        frame = get_sigframe(ka, regs);
@@ -260,12 +252,7 @@ static int setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
        __put_user_error(0, &frame->uc.uc_flags, err);
        __put_user_error(NULL, &frame->uc.uc_link, err);
-        memset(&stack, 0, sizeof(stack));
+        err |= __save_altstack(&frame->uc.uc_stack, regs->sp);
-        stack.ss_sp = (void __user *)current->sas_ss_sp;
-        stack.ss_flags = sas_ss_flags(regs->sp);
-        stack.ss_size = current->sas_ss_size;
-        err |= __copy_to_user(&frame->uc.uc_stack, &stack, sizeof(stack));
        err |= setup_sigframe(frame, regs, set);
        if (err == 0) {
                setup_return(regs, ka, frame, usig);
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index a4db3d22aac4..92ada01f4cd8 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -28,26 +28,6 @@
 #include <asm/uaccess.h>
 #include <asm/unistd32.h>
-struct compat_sigaction {
-        compat_uptr_t                   sa_handler;
-        compat_ulong_t                  sa_flags;
-        compat_uptr_t                   sa_restorer;
-        compat_sigset_t                 sa_mask;
-};
-struct compat_old_sigaction {
-        compat_uptr_t                   sa_handler;
-        compat_old_sigset_t             sa_mask;
-        compat_ulong_t                  sa_flags;
-        compat_uptr_t                   sa_restorer;
-};
-typedef struct compat_sigaltstack {
-        compat_uptr_t                   ss_sp;
-        int                             ss_flags;
-        compat_size_t                   ss_size;
-} compat_stack_t;
 struct compat_sigcontext {
        /* We always set these two fields to 0 */
        compat_ulong_t                  trap_no;
@@ -339,127 +319,6 @@ static int compat_restore_vfp_context(struct compat_vfp_sigframe __user *frame)
        return err ? -EFAULT : 0;
 }
-/*
- * atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage int compat_sys_sigsuspend(int restart, compat_ulong_t oldmask,
-                                     compat_old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&current->blocked, mask);
-        return sigsuspend(&blocked);
-}
-asmlinkage int compat_sys_sigaction(int sig,
-                                    const struct compat_old_sigaction __user *act,
-                                    struct compat_old_sigaction __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        compat_old_sigset_t mask;
-        compat_uptr_t handler, restorer;
-        if (act) {
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(handler, &act->sa_handler) ||
-                    __get_user(restorer, &act->sa_restorer) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                new_ka.sa.sa_handler = compat_ptr(handler);
-                new_ka.sa.sa_restorer = compat_ptr(restorer);
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(ptr_to_compat(old_ka.sa.sa_handler),
-                               &oact->sa_handler) ||
-                    __put_user(ptr_to_compat(old_ka.sa.sa_restorer),
-                               &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
-}
-asmlinkage int compat_sys_rt_sigaction(int sig,
-                                       const struct compat_sigaction __user *act,
-                                       struct compat_sigaction __user *oact,
-                                       compat_size_t sigsetsize)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        /* XXX: Don't preclude handling different sized sigset_t's.  */
-        if (sigsetsize != sizeof(compat_sigset_t))
-                return -EINVAL;
-        if (act) {
-                compat_uptr_t handler, restorer;
-                ret = get_user(handler, &act->sa_handler);
-                new_ka.sa.sa_handler = compat_ptr(handler);
-                ret |= get_user(restorer, &act->sa_restorer);
-                new_ka.sa.sa_restorer = compat_ptr(restorer);
-                ret |= get_sigset_t(&new_ka.sa.sa_mask, &act->sa_mask);
-                ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
-                if (ret)
-                        return -EFAULT;
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
-                ret |= put_sigset_t(&oact->sa_mask, &old_ka.sa.sa_mask);
-                ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-        }
-        return ret;
-}
-int compat_do_sigaltstack(compat_uptr_t compat_uss, compat_uptr_t compat_uoss,
-                          compat_ulong_t sp)
-{
-        compat_stack_t __user *newstack = compat_ptr(compat_uss);
-        compat_stack_t __user *oldstack = compat_ptr(compat_uoss);
-        compat_uptr_t ss_sp;
-        int ret;
-        mm_segment_t old_fs;
-        stack_t uss, uoss;
-        /* Marshall the compat new stack into a stack_t */
-        if (newstack) {
-                if (get_user(ss_sp, &newstack->ss_sp) ||
-                    __get_user(uss.ss_flags, &newstack->ss_flags) ||
-                    __get_user(uss.ss_size, &newstack->ss_size))
-                        return -EFAULT;
-                uss.ss_sp = compat_ptr(ss_sp);
-        }
-        old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        /* The __user pointer casts are valid because of the set_fs() */
-        ret = do_sigaltstack(
-                newstack ? (stack_t __user *) &uss : NULL,
-                oldstack ? (stack_t __user *) &uoss : NULL,
-                (unsigned long)sp);
-        set_fs(old_fs);
-        /* Convert the old stack_t into a compat stack. */
-        if (!ret && oldstack &&
-                (put_user(ptr_to_compat(uoss.ss_sp), &oldstack->ss_sp) ||
-                 __put_user(uoss.ss_flags, &oldstack->ss_flags) ||
-                 __put_user(uoss.ss_size, &oldstack->ss_size)))
-                return -EFAULT;
-        return ret;
-}
 static int compat_restore_sigframe(struct pt_regs *regs,
                                   struct compat_sigframe __user *sf)
 {
@@ -562,9 +421,7 @@ asmlinkage int compat_sys_rt_sigreturn(struct pt_regs *regs)
        if (compat_restore_sigframe(regs, &frame->sig))
                goto badframe;
-        if (compat_do_sigaltstack(ptr_to_compat(&frame->sig.uc.uc_stack),
+        if (compat_restore_altstack(&frame->sig.uc.uc_stack))
-                                 ptr_to_compat((void __user *)NULL),
-                                 regs->compat_sp) == -EFAULT)
                goto badframe;
        return regs->regs[0];
@@ -705,11 +562,7 @@ int compat_setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
        __put_user_error(0, &frame->sig.uc.uc_flags, err);
        __put_user_error(NULL, &frame->sig.uc.uc_link, err);
-        memset(&stack, 0, sizeof(stack));
+        err |= __compat_save_altstack(&frame->sig.uc.uc_stack, regs->compat_sp);
-        stack.ss_sp = (compat_uptr_t)current->sas_ss_sp;
-        stack.ss_flags = sas_ss_flags(regs->compat_sp);
-        stack.ss_size = current->sas_ss_size;
-        err |= __copy_to_user(&frame->sig.uc.uc_stack, &stack, sizeof(stack));
        err |= compat_setup_sigframe(&frame->sig, regs, set);
@@ -742,75 +595,6 @@ int compat_setup_frame(int usig, struct k_sigaction *ka, sigset_t *set,
        return err;
 }
-/*
- * RT signals don't have generic compat wrappers.
- * See arch/powerpc/kernel/signal_32.c
- */
-asmlinkage int compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set,
-                                         compat_sigset_t __user *oset,
-                                         compat_size_t sigsetsize)
-{
-        sigset_t s;
-        sigset_t __user *up;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        if (set) {
-                if (get_sigset_t(&s, set))
-                        return -EFAULT;
-        }
-        set_fs(KERNEL_DS);
-        /* This is valid because of the set_fs() */
-        up = (sigset_t __user *) &s;
-        ret = sys_rt_sigprocmask(how, set ? up : NULL, oset ? up : NULL,
-                                 sigsetsize);
-        set_fs(old_fs);
-        if (ret)
-                return ret;
-        if (oset) {
-                if (put_sigset_t(oset, &s))
-                        return -EFAULT;
-        }
-        return 0;
-}
-asmlinkage int compat_sys_rt_sigpending(compat_sigset_t __user *set,
-                                        compat_size_t sigsetsize)
-{
-        sigset_t s;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        /* The __user pointer cast is valid because of the set_fs() */
-        ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
-        set_fs(old_fs);
-        if (!ret) {
-                if (put_sigset_t(set, &s))
-                        return -EFAULT;
-        }
-        return ret;
-}
-asmlinkage int compat_sys_rt_sigqueueinfo(int pid, int sig,
-                                          compat_siginfo_t __user *uinfo)
-{
-        siginfo_t info;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        ret = copy_siginfo_from_user32(&info, uinfo);
-        if (unlikely(ret))
-                return ret;
-        set_fs (KERNEL_DS);
-        /* The __user pointer cast is valid because of the set_fs() */
-        ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
-        set_fs (old_fs);
-        return ret;
-}
 void compat_setup_restart_syscall(struct pt_regs *regs)
 {
       regs->regs[7] = __NR_compat_restart_syscall;
diff --git a/arch/arm64/kernel/sys.c b/arch/arm64/kernel/sys.c
index 8292a9b090f8..3fa98ff14f0e 100644
--- a/arch/arm64/kernel/sys.c
+++ b/arch/arm64/kernel/sys.c
@@ -40,7 +40,6 @@ asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
 * Wrappers to pass the pt_regs argument.
 */
 #define sys_rt_sigreturn        sys_rt_sigreturn_wrapper
-#define sys_sigaltstack         sys_sigaltstack_wrapper
 #include <asm/syscalls.h>
diff --git a/arch/arm64/kernel/sys32.S b/arch/arm64/kernel/sys32.S
index 7ef59e9245ef..6abb05721614 100644
--- a/arch/arm64/kernel/sys32.S
+++ b/arch/arm64/kernel/sys32.S
@@ -39,11 +39,6 @@ compat_sys_rt_sigreturn_wrapper:
        b       compat_sys_rt_sigreturn
 ENDPROC(compat_sys_rt_sigreturn_wrapper)
-compat_sys_sigaltstack_wrapper:
-        ldr     x2, [sp, #S_COMPAT_SP]
-        b       compat_do_sigaltstack
-ENDPROC(compat_sys_sigaltstack_wrapper)
 compat_sys_statfs64_wrapper:
        mov     w3, #84
        cmp     w1, #88
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 2ae6591b3a55..e888b72b6e10 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -17,6 +17,7 @@ config AVR32
        select GENERIC_CLOCKEVENTS
        select HAVE_MOD_ARCH_SPECIFIC
        select MODULES_USE_ELF_RELA
+        select GENERIC_SIGALTSTACK
        help
          AVR32 is a high-performance 32-bit RISC microprocessor core,
          designed for cost-sensitive embedded applications, with particular
diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c
index 5e01c3a40ced..b80c0b3d2bab 100644
--- a/arch/avr32/kernel/signal.c
+++ b/arch/avr32/kernel/signal.c
@@ -21,12 +21,6 @@
 #include <asm/ucontext.h>
 #include <asm/syscalls.h>
-asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
-                               struct pt_regs *regs)
-{
-        return do_sigaltstack(uss, uoss, regs->sp);
-}
 struct rt_sigframe
 {
        struct siginfo info;
@@ -91,7 +85,7 @@ asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
        if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
                goto badframe;
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT)
+        if (restore_altstack(&frame->uc.uc_stack))
                goto badframe;
        pr_debug("Context restored: pc = %08lx, lr = %08lx, sp = %08lx\n",
@@ -175,12 +169,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        /* Set up the ucontext */
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(NULL, &frame->uc.uc_link);
-        err |= __put_user((void __user *)current->sas_ss_sp,
+        err |= __save_altstack(&frame->uc.uc_stack, regs->sp);
-                          &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->sp),
-                          &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size,
-                          &frame->uc.uc_stack.ss_size);
        err |= setup_sigcontext(&frame->uc.uc_mcontext, regs);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
diff --git a/arch/avr32/kernel/syscall-stubs.S b/arch/avr32/kernel/syscall-stubs.S
index 275aab9731fd..b5fc927cd398 100644
--- a/arch/avr32/kernel/syscall-stubs.S
+++ b/arch/avr32/kernel/syscall-stubs.S
@@ -20,12 +20,6 @@ __sys_rt_sigsuspend:
        mov     r10, sp
        rjmp    sys_rt_sigsuspend
-        .global __sys_sigaltstack
-        .type   __sys_sigaltstack,@function
-__sys_sigaltstack:
-        mov     r10, sp
-        rjmp    sys_sigaltstack
        .global __sys_rt_sigreturn
        .type   __sys_rt_sigreturn,@function
 __sys_rt_sigreturn:
diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S
index f27bb878da6b..017a904180c8 100644
--- a/arch/avr32/kernel/syscall_table.S
+++ b/arch/avr32/kernel/syscall_table.S
@@ -115,7 +115,7 @@ sys_call_table:
        .long   sys_statfs
        .long   sys_fstatfs             /* 100 */
        .long   sys_vhangup
-        .long   __sys_sigaltstack
+        .long   sys_sigaltstack
        .long   sys_syslog
        .long   sys_setitimer
        .long   sys_getitimer           /* 105 */
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index b6f3ad5441c5..a8a9ca7d40f3 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -45,6 +45,7 @@ config BLACKFIN
        select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
        select HAVE_MOD_ARCH_SPECIFIC
        select MODULES_USE_ELF_RELA
+        select GENERIC_SIGALTSTACK
 config GENERIC_CSUM
        def_bool y
diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c
index 84b4be05840c..b022af6c48f8 100644
--- a/arch/blackfin/kernel/signal.c
+++ b/arch/blackfin/kernel/signal.c
@@ -37,11 +37,6 @@ struct rt_sigframe {
        struct ucontext uc;
 };
-asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss)
-{
-        return do_sigaltstack(uss, uoss, rdusp());
-}
 static inline int
 rt_restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *pr0)
 {
@@ -100,7 +95,7 @@ asmlinkage int sys_rt_sigreturn(void)
        if (rt_restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0))
                goto badframe;
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->usp) == -EFAULT)
+        if (restore_altstack(&frame->uc.uc_stack))
                goto badframe;
        return r0;
@@ -178,10 +173,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t * info,
        /* Create the ucontext.  */
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(0, &frame->uc.uc_link);
-        err |=
+        err |= __save_altstack(&frame->uc.uc_stack, rdusp());
-            __put_user((void *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(rdusp()), &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
        err |= rt_setup_sigcontext(&frame->uc.uc_mcontext, regs);
        err |= copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index f6a3648f5ec3..12d97b7ef0dc 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -18,6 +18,7 @@ config C6X
        select OF_EARLY_FLATTREE
        select GENERIC_CLOCKEVENTS
        select MODULES_USE_ELF_RELA
+        select GENERIC_SIGALTSTACK
 config MMU
        def_bool n
diff --git a/arch/c6x/kernel/entry.S b/arch/c6x/kernel/entry.S
index 5239057de4c4..2721c90b0121 100644
--- a/arch/c6x/kernel/entry.S
+++ b/arch/c6x/kernel/entry.S
@@ -598,18 +598,6 @@ ENTRY(enable_exception)
        NOP     5
 ENDPROC(enable_exception)
-ENTRY(sys_sigaltstack)
-#ifdef CONFIG_C6X_BIG_KERNEL
-        MVKL    .S1     do_sigaltstack,A0       ; branch to do_sigaltstack
-        MVKH    .S1     do_sigaltstack,A0
-        B       .S2X    A0
-#else
-        B       .S2     do_sigaltstack
-#endif
-        LDW     .D2T1   *+SP(REGS_SP+8),A6
-        NOP     4
-ENDPROC(sys_sigaltstack)
        ;;
        ;; Special system calls
        ;; return address is in B3
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index c59a01dd9c0c..c2a1d0a8924c 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -50,6 +50,9 @@ config CRIS
        select GENERIC_CMOS_UPDATE
        select MODULES_USE_ELF_RELA
        select CLONE_BACKWARDS2
+        select GENERIC_SIGALTSTACK
+        select OLD_SIGSUSPEND
+        select OLD_SIGACTION
 config HZ
        int
diff --git a/arch/cris/arch-v10/kernel/signal.c b/arch/cris/arch-v10/kernel/signal.c
index 0bb477c13a4e..61ce6273a895 100644
--- a/arch/cris/arch-v10/kernel/signal.c
+++ b/arch/cris/arch-v10/kernel/signal.c
@@ -42,55 +42,6 @@
 void do_signal(int canrestart, struct pt_regs *regs);
 /*
- * Atomically swap in the new signal mask, and wait for a signal.  Define
- * dummy arguments to be able to reach the regs argument.  (Note that this
- * arrangement relies on old_sigset_t occupying one register.)
- */
-int sys_sigsuspend(old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
-int sys_sigaction(int sig, const struct old_sigaction __user *act,
-        struct old_sigaction *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        if (act) {
-                old_sigset_t mask;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
-                     __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                     __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
-}
-int sys_sigaltstack(const stack_t *uss, stack_t __user *uoss)
-{
-        return do_sigaltstack(uss, uoss, rdusp());
-}
-/*
 * Do a signal return; undo the signal stack.
 */
@@ -150,11 +101,9 @@ badframe:
        return 1;
 }
-/* Define dummy arguments to be able to reach the regs argument.  */
+asmlinkage int sys_sigreturn(void)
-asmlinkage int sys_sigreturn(long r10, long r11, long r12, long r13, long mof,
-                             long srp, struct pt_regs *regs)
 {
+        struct pt_regs *regs = current_pt_regs();
        struct sigframe __user *frame = (struct sigframe *)rdusp();
        sigset_t set;
@@ -188,11 +137,9 @@ badframe:
        return 0;
 }
-/* Define dummy arguments to be able to reach the regs argument.  */
+asmlinkage int sys_rt_sigreturn(void)
-asmlinkage int sys_rt_sigreturn(long r10, long r11, long r12, long r13,
-                                long mof, long srp, struct pt_regs *regs)
 {
+        struct pt_regs *regs = current_pt_regs();
        struct rt_sigframe __user *frame = (struct rt_sigframe *)rdusp();
        sigset_t set;
@@ -214,7 +161,7 @@ asmlinkage int sys_rt_sigreturn(long r10, long r11, long r12, long r13,
        if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
                goto badframe;
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, rdusp()) == -EFAULT)
+        if (restore_altstack(&frame->uc.uc_stack))
                goto badframe;
        return regs->r10;
@@ -362,6 +309,8 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+        err |= __save_altstack(&frame->uc.uc_stack, rdusp());
        if (err)
                goto give_sigsegv;
diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c
index b60d1b65a426..01d1375c9004 100644
--- a/arch/cris/arch-v32/kernel/signal.c
+++ b/arch/cris/arch-v32/kernel/signal.c
@@ -51,59 +51,6 @@ struct rt_signal_frame {
 void do_signal(int restart, struct pt_regs *regs);
 void keep_debug_flags(unsigned long oldccs, unsigned long oldspc,
                      struct pt_regs *regs);
-/*
- * Swap in the new signal mask, and wait for a signal. Define some
- * dummy arguments to be able to reach the regs argument.
- */
-int
-sys_sigsuspend(old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
-int
-sys_sigaction(int signal, const struct old_sigaction *act,
-              struct old_sigaction *oact)
-{
-        int retval;
-        struct k_sigaction newk;
-        struct k_sigaction oldk;
-        if (act) {
-                old_sigset_t mask;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(newk.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(newk.sa.sa_restorer, &act->sa_restorer) ||
-                    __get_user(newk.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                siginitset(&newk.sa.sa_mask, mask);
-        }
-        retval = do_sigaction(signal, act ? &newk : NULL, oact ? &oldk : NULL);
-        if (!retval && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(oldk.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(oldk.sa.sa_restorer, &oact->sa_restorer) ||
-                    __put_user(oldk.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(oldk.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return retval;
-}
-int
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss)
-{
-        return do_sigaltstack(uss, uoss, rdusp());
-}
 static int
 restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
@@ -135,11 +82,9 @@ badframe:
        return 1;
 }
-/* Define some dummy arguments to be able to reach the regs argument. */
+asmlinkage int sys_sigreturn(void)
-asmlinkage int
-sys_sigreturn(long r10, long r11, long r12, long r13, long mof, long srp,
-              struct pt_regs *regs)
 {
+        struct pt_regs *regs = current_pt_regs();
        sigset_t set;
        struct signal_frame __user *frame;
        unsigned long oldspc = regs->spc;
@@ -178,11 +123,9 @@ badframe:
        return 0;
 }
-/* Define some dummy variables to be able to reach the regs argument. */
+asmlinkage int sys_rt_sigreturn(void)
-asmlinkage int
-sys_rt_sigreturn(long r10, long r11, long r12, long r13, long mof, long srp,
-                 struct pt_regs *regs)
 {
+        struct pt_regs *regs = current_pt_regs();
        sigset_t set;
        struct rt_signal_frame __user *frame;
        unsigned long oldspc = regs->spc;
@@ -209,7 +152,7 @@ sys_rt_sigreturn(long r10, long r11, long r12, long r13, long mof, long srp,
        if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
                goto badframe;
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, rdusp()) == -EFAULT)
+        if (restore_altstack(&frame->uc.uc_stack))
                goto badframe;
        keep_debug_flags(oldccs, oldspc, regs);
@@ -371,6 +314,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext));
        err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+        err |= __save_altstack(&frame->uc.uc_stack, rdusp());
        if (err)
                goto give_sigsegv;
diff --git a/arch/cris/include/asm/signal.h b/arch/cris/include/asm/signal.h
index b3650ab2c320..c11b8745cece 100644
--- a/arch/cris/include/asm/signal.h
+++ b/arch/cris/include/asm/signal.h
@@ -16,13 +16,6 @@ typedef struct {
        unsigned long sig[_NSIG_WORDS];
 } sigset_t;
-struct old_sigaction {
-        __sighandler_t sa_handler;
-        old_sigset_t sa_mask;
-        unsigned long sa_flags;
-        void (*sa_restorer)(void);
-};
 #define __ARCH_HAS_SA_RESTORER
 #include <asm/sigcontext.h>
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index 9d262645f667..e3f8ffdd4e7b 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -12,6 +12,9 @@ config FRV
        select ARCH_HAVE_NMI_SAFE_CMPXCHG
        select GENERIC_CPU_DEVICES
        select ARCH_WANT_IPC_PARSE_VERSION
+        select GENERIC_SIGALTSTACK
+        select OLD_SIGSUSPEND3
+        select OLD_SIGACTION
 config ZONE_DMA
        bool
diff --git a/arch/frv/include/asm/signal.h b/arch/frv/include/asm/signal.h
index 599500a31025..eca0abcb79d6 100644
--- a/arch/frv/include/asm/signal.h
+++ b/arch/frv/include/asm/signal.h
@@ -3,11 +3,4 @@
 #include <uapi/asm/signal.h>
-struct old_sigaction {
-        __sighandler_t sa_handler;
-        old_sigset_t sa_mask;
-        unsigned long sa_flags;
-        __sigrestore_t sa_restorer;
-};
 #endif /* _ASM_SIGNAL_H */
diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c
index 535810a3217a..d822700d4f15 100644
--- a/arch/frv/kernel/signal.c
+++ b/arch/frv/kernel/signal.c
@@ -33,55 +33,6 @@ struct fdpic_func_descriptor {
 };
 /*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage int sys_sigsuspend(int history0, int history1, old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
-asmlinkage int sys_sigaction(int sig,
-                             const struct old_sigaction __user *act,
-                             struct old_sigaction __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        if (act) {
-                old_sigset_t mask;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
-}
-asmlinkage
-int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss)
-{
-        return do_sigaltstack(uss, uoss, __frame->sp);
-}
-/*
 * Do a signal return; undo the signal stack.
 */
@@ -173,7 +124,7 @@ asmlinkage int sys_rt_sigreturn(void)
        if (restore_sigcontext(&frame->uc.uc_mcontext, &gr8))
                goto badframe;
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, __frame->sp) == -EFAULT)
+        if (restore_altstack(&frame->uc.uc_stack))
                goto badframe;
        return gr8;
@@ -345,9 +296,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        /* Create the ucontext.  */
        if (__put_user(0, &frame->uc.uc_flags) ||
            __put_user(NULL, &frame->uc.uc_link) ||
-            __put_user((void __user *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp) ||
+            __save_altstack(&frame->uc.uc_stack, __frame->sp))
-            __put_user(sas_ss_flags(__frame->sp), &frame->uc.uc_stack.ss_flags) ||
-            __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size))
                goto give_sigsegv;
        if (setup_sigcontext(&frame->uc.uc_mcontext, set->sig[0]))
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 2d2efb653ee0..0b0176ce2c35 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -9,6 +9,9 @@ config H8300
        select GENERIC_IRQ_SHOW
        select GENERIC_CPU_DEVICES
        select MODULES_USE_ELF_RELA
+        select GENERIC_SIGALTSTACK
+        select OLD_SIGSUSPEND3
+        select OLD_SIGACTION
 config SYMBOL_PREFIX
        string
diff --git a/arch/h8300/include/asm/signal.h b/arch/h8300/include/asm/signal.h
index 9b18a0959461..6341e36386f8 100644
--- a/arch/h8300/include/asm/signal.h
+++ b/arch/h8300/include/asm/signal.h
@@ -16,13 +16,6 @@ typedef struct {
        unsigned long sig[_NSIG_WORDS];
 } sigset_t;
-struct old_sigaction {
-        __sighandler_t sa_handler;
-        old_sigset_t sa_mask;
-        unsigned long sa_flags;
-        void (*sa_restorer)(void);
-};
 #define __ARCH_HAS_SA_RESTORER
 #include <asm/sigcontext.h>
diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c
index 0e81b96c642f..a65ff3b76326 100644
--- a/arch/h8300/kernel/signal.c
+++ b/arch/h8300/kernel/signal.c
@@ -47,56 +47,6 @@
 #include <asm/ucontext.h>
 /*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage int
-sys_sigsuspend(int unused1, int unused2, old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
-asmlinkage int 
-sys_sigaction(int sig, const struct old_sigaction *act,
-              struct old_sigaction *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        if (act) {
-                old_sigset_t mask;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
-}
-asmlinkage int
-sys_sigaltstack(const stack_t *uss, stack_t *uoss)
-{
-        return do_sigaltstack(uss, uoss, rdusp());
-}
-/*
 * Do a signal return; undo the signal stack.
 *
 * Keep the return code on the stack quadword aligned!
@@ -136,9 +86,9 @@ struct rt_sigframe
 } __attribute__((aligned(2),packed));
 static inline int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext *usc,
+restore_sigcontext(struct sigcontext *usc, int *pd0)
-                   int *pd0)
 {
+        struct pt_regs *regs = current_pt_regs();
        int err = 0;
        unsigned int ccr;
        unsigned int usp;
@@ -167,9 +117,8 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext *usc,
        return err;
 }
-asmlinkage int do_sigreturn(unsigned long __unused,...)
+asmlinkage int sys_sigreturn(void)
 {
-        struct pt_regs *regs = (struct pt_regs *) (&__unused - 1);
        unsigned long usp = rdusp();
        struct sigframe *frame = (struct sigframe *)(usp - 4);
        sigset_t set;
@@ -185,7 +134,7 @@ asmlinkage int do_sigreturn(unsigned long __unused,...)
        set_current_blocked(&set);
        
-        if (restore_sigcontext(regs, &frame->sc, &er0))
+        if (restore_sigcontext(&frame->sc, &er0))
                goto badframe;
        return er0;
@@ -194,9 +143,8 @@ badframe:
        return 0;
 }
-asmlinkage int do_rt_sigreturn(unsigned long __unused,...)
+asmlinkage int sys_rt_sigreturn(void)
 {
-        struct pt_regs *regs = (struct pt_regs *) &__unused;
        unsigned long usp = rdusp();
        struct rt_sigframe *frame = (struct rt_sigframe *)(usp - 4);
        sigset_t set;
@@ -209,10 +157,10 @@ asmlinkage int do_rt_sigreturn(unsigned long __unused,...)
        set_current_blocked(&set);
        
-        if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &er0))
+        if (restore_sigcontext(&frame->uc.uc_mcontext, &er0))
                goto badframe;
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, usp) == -EFAULT)
+        if (restore_altstack(&frame->uc.uc_stack))
                goto badframe;
        return er0;
@@ -358,11 +306,7 @@ static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
        /* Create the ucontext.  */
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(0, &frame->uc.uc_link);
-        err |= __put_user((void *)current->sas_ss_sp,
+        err |= __save_altstack(&frame->uc.uc_stack, rdusp());
-                          &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(rdusp()),
-                          &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
        err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);
        err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set));
        if (err)
diff --git a/arch/h8300/kernel/syscalls.S b/arch/h8300/kernel/syscalls.S
index b74dd0ade58d..5c2168fb9b9e 100644
--- a/arch/h8300/kernel/syscalls.S
+++ b/arch/h8300/kernel/syscalls.S
@@ -334,18 +334,3 @@ SYMBOL_NAME_LABEL(sys_call_table)
        .long SYMBOL_NAME(sys_getcpu)
        .long SYMBOL_NAME(sys_ni_syscall)       /* sys_epoll_pwait */
        .long SYMBOL_NAME(sys_setns)            /* 320 */
-        .macro  call_sp addr
-        mov.l   #SYMBOL_NAME(\addr),er6
-        bra     SYMBOL_NAME(syscall_trampoline):8
-        .endm
-SYMBOL_NAME_LABEL(sys_sigreturn)
-        call_sp do_sigreturn
-SYMBOL_NAME_LABEL(sys_rt_sigreturn)
-        call_sp do_rt_sigreturn
-SYMBOL_NAME_LABEL(syscall_trampoline)
-        mov.l   sp,er0
-        jmp     @er6
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 0744f7d7b1fd..3e6e27c11f93 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -31,6 +31,7 @@ config HEXAGON
        select GENERIC_CLOCKEVENTS
        select GENERIC_CLOCKEVENTS_BROADCAST
        select MODULES_USE_ELF_RELA
+        select GENERIC_SIGALTSTACK
        ---help---
          Qualcomm Hexagon is a processor architecture designed for high
          performance and low power across a wide variety of applications.
diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c
index fe0d1373165d..60fa2ca3202b 100644
--- a/arch/hexagon/kernel/signal.c
+++ b/arch/hexagon/kernel/signal.c
@@ -125,6 +125,7 @@ static int setup_rt_frame(int signr, struct k_sigaction *ka, siginfo_t *info,
        err |= __put_user(0x5400c004, &frame->tramp[1]);
        err |= setup_sigcontext(regs, &frame->uc.uc_mcontext);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+        err |= __save_altstack(&frame->uc.uc_stack, user_stack_pointer(regs));
        if (err)
                goto sigsegv;
@@ -247,12 +248,6 @@ void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags)
 /*
 * Architecture-specific wrappers for signal-related system calls
 */
-asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss)
-{
-        struct pt_regs *regs = current_pt_regs();
-        return do_sigaltstack(uss, uoss, regs->r29);
-}
 asmlinkage int sys_rt_sigreturn(void)
 {
@@ -288,14 +283,7 @@ asmlinkage int sys_rt_sigreturn(void)
         */
        regs->syscall_nr = __NR_rt_sigreturn;
-        /*
+        if (restore_altstack(&frame->uc.uc_stack))
-         * If we were meticulous, we'd only call this if we knew that
-         * we were actually going to use an alternate stack, and we'd
-         * consider any error to be fatal.  What we do here, in common
-         * with many other architectures, is call it blindly and only
-         * consider the -EFAULT return case to be proof of a problem.
-         */
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, pt_psp(regs)) == -EFAULT)
                goto badframe;
        return 0;
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 3279646120e3..98482d1cbc5b 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -42,6 +42,7 @@ config IA64
        select GENERIC_TIME_VSYSCALL_OLD
        select HAVE_MOD_ARCH_SPECIFIC
        select MODULES_USE_ELF_RELA
+        select GENERIC_SIGALTSTACK
        default y
        help
          The Itanium Processor Family is Intel's 64-bit successor to
diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c
index 680b73786be8..3637e03d2282 100644
--- a/arch/ia64/kernel/signal.c
+++ b/arch/ia64/kernel/signal.c
@@ -39,14 +39,6 @@
 # define GET_SIGSET(k,u)        __get_user((k)->sig[0], &(u)->sig[0])
 #endif
-asmlinkage long
-sys_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, long arg2,
-                 long arg3, long arg4, long arg5, long arg6, long arg7,
-                 struct pt_regs regs)
-{
-        return do_sigaltstack(uss, uoss, regs.r12);
-}
 static long
 restore_sigcontext (struct sigcontext __user *sc, struct sigscratch *scr)
 {
@@ -208,11 +200,8 @@ ia64_rt_sigreturn (struct sigscratch *scr)
        printk("SIG return (%s:%d): sp=%lx ip=%lx\n",
               current->comm, current->pid, scr->pt.r12, scr->pt.cr_iip);
 #endif
-        /*
+        if (restore_altstack(&sc->sc_stack))
-         * It is more difficult to avoid calling this function than to
+                goto give_sigsegv;
-         * call it and ignore errors.
-         */
-        do_sigaltstack(&sc->sc_stack, NULL, scr->pt.r12);
        return retval;
  give_sigsegv:
@@ -376,9 +365,7 @@ setup_frame (int sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *set,
        err |= copy_siginfo_to_user(&frame->info, info);
-        err |= __put_user(current->sas_ss_sp, &frame->sc.sc_stack.ss_sp);
+        err |= __save_altstack(&frame->sc.sc_stack, scr->pt.r12);
-        err |= __put_user(current->sas_ss_size, &frame->sc.sc_stack.ss_size);
-        err |= __put_user(sas_ss_flags(scr->pt.r12), &frame->sc.sc_stack.ss_flags);
        err |= setup_sigcontext(&frame->sc, set, scr);
        if (unlikely(err))
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index f807721e19a5..1f550d4dd5d0 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -15,6 +15,7 @@ config M32R
        select GENERIC_ATOMIC64
        select ARCH_USES_GETTIMEOFFSET
        select MODULES_USE_ELF_RELA
+        select GENERIC_SIGALTSTACK
 config SBUS
        bool
diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c
index 6e3c26a1607c..d503568cb753 100644
--- a/arch/m32r/kernel/signal.c
+++ b/arch/m32r/kernel/signal.c
@@ -27,15 +27,6 @@
 #define DEBUG_SIG 0
-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)
-{
-        return do_sigaltstack(uss, uoss, regs->spu);
-}
 /*
 * Do a signal return; undo the signal stack.
 */
@@ -113,7 +104,7 @@ sys_rt_sigreturn(unsigned long r0, unsigned long r1,
        if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &result))
                goto badframe;
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->spu) == -EFAULT)
+        if (restore_altstack(&frame->uc.uc_stack))
                goto badframe;
        return result;
@@ -213,10 +204,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        /* Create the ucontext.  */
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(0, &frame->uc.uc_link);
-        err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
+        err |= __save_altstack(&frame->uc.uc_stack, regs->spu);
-        err |= __put_user(sas_ss_flags(regs->spu),
-                          &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
        err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
        if (err)
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 6710084e072a..a358bf63defe 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -18,6 +18,9 @@ config M68K
        select HAVE_MOD_ARCH_SPECIFIC
        select MODULES_USE_ELF_REL
        select MODULES_USE_ELF_RELA
+        select GENERIC_SIGALTSTACK
+        select OLD_SIGSUSPEND3
+        select OLD_SIGACTION
 config RWSEM_GENERIC_SPINLOCK
        bool
diff --git a/arch/m68k/include/asm/signal.h b/arch/m68k/include/asm/signal.h
index c7b4fb1fa14d..214320b50384 100644
--- a/arch/m68k/include/asm/signal.h
+++ b/arch/m68k/include/asm/signal.h
@@ -16,13 +16,6 @@ typedef struct {
        unsigned long sig[_NSIG_WORDS];
 } sigset_t;
-struct old_sigaction {
-        __sighandler_t sa_handler;
-        old_sigset_t sa_mask;
-        unsigned long sa_flags;
-        __sigrestore_t sa_restorer;
-};
 #define __ARCH_HAS_SA_RESTORER
 #include <asm/sigcontext.h>
diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c
index 9a396cda3147..2a16df3d9312 100644
--- a/arch/m68k/kernel/signal.c
+++ b/arch/m68k/kernel/signal.c
@@ -225,56 +225,6 @@ static inline void push_cache(unsigned long vaddr)
 #endif /* CONFIG_MMU */
 /*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage int
-sys_sigsuspend(int unused0, int unused1, old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
-asmlinkage int
-sys_sigaction(int sig, const struct old_sigaction __user *act,
-              struct old_sigaction __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        if (act) {
-                old_sigset_t mask;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
-}
-asmlinkage int
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss)
-{
-        return do_sigaltstack(uss, uoss, rdusp());
-}
-/*
 * Do a signal return; undo the signal stack.
 *
 * Keep the return code on the stack quadword aligned!
@@ -765,8 +715,9 @@ rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw,
        err |= __get_user(temp, &uc->uc_formatvec);
        err |= rt_restore_fpu_state(uc);
+        err |= restore_altstack(&uc->uc_stack);
-        if (err || do_sigaltstack(&uc->uc_stack, NULL, usp) == -EFAULT)
+        if (err)
                goto badframe;
        if (mangle_kernel_stack(regs, temp, &uc->uc_extra))
@@ -1014,11 +965,7 @@ static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
        /* Create the ucontext.  */
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(NULL, &frame->uc.uc_link);
-        err |= __put_user((void __user *)current->sas_ss_sp,
+        err |= __save_altstack(&frame->uc.uc_stack, rdusp());
-                          &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(rdusp()),
-                          &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
        err |= rt_setup_ucontext(&frame->uc, regs);
        err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set));
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index ba3b7c8c04b8..5e30d75c74ed 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -27,6 +27,7 @@ config MICROBLAZE
        select GENERIC_CLOCKEVENTS
        select MODULES_USE_ELF_RELA
        select CLONE_BACKWARDS
+        select GENERIC_SIGALTSTACK
 config SWAP
        def_bool n
diff --git a/arch/microblaze/kernel/entry-nommu.S b/arch/microblaze/kernel/entry-nommu.S
index 70da83a49670..7e394fc2c439 100644
--- a/arch/microblaze/kernel/entry-nommu.S
+++ b/arch/microblaze/kernel/entry-nommu.S
@@ -124,6 +124,7 @@ ret_from_intr:
        lwi     r11, r1, PT_MODE
        bneid   r11, no_intr_resched
+3:
        lwi     r6, r31, TS_THREAD_INFO /* get thread info */
        lwi     r19, r6, TI_FLAGS       /* get flags in thread info */
                                /* do an extra work if any bits are set */
@@ -132,11 +133,13 @@ ret_from_intr:
        beqi    r11, 1f
        bralid  r15, schedule
        nop
+        bri     3b
 1:      andi    r11, r19, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME
        beqid   r11, no_intr_resched
        addk    r5, r1, r0
        bralid  r15, do_notify_resume
        addk    r6, r0, r0
+        bri     3b
 no_intr_resched:
        /* Disable interrupts, we are now committed to the state restore */
@@ -280,6 +283,7 @@ ENTRY(_user_exception)
        /* Figure out which function to use for this system call. */
        /* Note Microblaze barrel shift is optional, so don't rely on it */
        add     r12, r12, r12                   /* convert num -> ptr */
+        addik   r30, r0, 1                      /* restarts allowed */
        add     r12, r12, r12
        lwi     r12, r12, sys_call_table        /* Get function pointer */
        addik   r15, r0, ret_to_user-8          /* set return address */
@@ -369,6 +373,7 @@ ENTRY(_debug_exception)
        bralid  r15, send_sig
        add     r7, r0, r0                      /* 3rd param zero */
+        addik   r30, r0, 1                      /* restarts allowed ??? */
        /* Restore r3/r4 to work around how ret_to_user works */
        lwi     r3, r1, PT_R3
        lwi     r4, r1, PT_R4
@@ -482,18 +487,26 @@ ENTRY(ret_from_kernel_thread)
        addk    r3, r0, r0
 work_pending:
+        lwi     r11, r1, PT_MODE
+        bneid   r11, 2f
+3:
        enable_irq
        andi    r11, r19, _TIF_NEED_RESCHED
        beqi    r11, 1f
        bralid  r15, schedule
        nop
+        bri     4f
 1:      andi    r11, r19, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME
        beqi    r11, no_work_pending
-        addk    r5, r1, r0
+        addk    r5, r30, r0
        bralid  r15, do_notify_resume
        addik   r6, r0, 1
-        bri     no_work_pending
+        addk    r30, r0, r0     /* no restarts from now on */
+4:
+        disable_irq
+        lwi     r6, r31, TS_THREAD_INFO /* get thread info */
+        lwi     r19, r6, TI_FLAGS /* get flags in thread info */
+        bri     3b
 ENTRY(ret_to_user)
        disable_irq
@@ -507,6 +520,7 @@ ENTRY(ret_to_user)
 no_work_pending:
        disable_irq
+2:
        /* save r31 */
        swi     r31, r0, PER_CPU(CURRENT_SAVE)
        /* save mode indicator */
@@ -559,6 +573,7 @@ no_work_pending:
        nop
 sys_rt_sigreturn_wrapper:
+        addk    r30, r0, r0             /* no restarts for this one */
        brid    sys_rt_sigreturn
        addk    r5, r1, r0
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index c217367dfc7b..0536bc021cc6 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -354,6 +354,7 @@ C_ENTRY(_user_exception):
        /* Note Microblaze barrel shift is optional, so don't rely on it */
        add     r12, r12, r12;                  /* convert num -> ptr */
        add     r12, r12, r12;
+        addi    r30, r0, 1                      /* restarts allowed */
 #ifdef DEBUG
        /* Trac syscalls and stored them to syscall_debug_table */
@@ -401,26 +402,27 @@ C_ENTRY(ret_from_trap):
         * trigger rescheduling. */
        /* get thread info from current task */
        lwi     r11, CURRENT_TASK, TS_THREAD_INFO;
-        lwi     r11, r11, TI_FLAGS;             /* get flags in thread info */
+        lwi     r19, r11, TI_FLAGS;             /* get flags in thread info */
-        andi    r11, r11, _TIF_NEED_RESCHED;
+        andi    r11, r19, _TIF_NEED_RESCHED;
        beqi    r11, 5f;
        bralid  r15, schedule;  /* Call scheduler */
        nop;                            /* delay slot */
+        bri     1b
        /* Maybe handle a signal */
-5:      /* get thread info from current task*/
+5:      
-        lwi     r11, CURRENT_TASK, TS_THREAD_INFO;
+        andi    r11, r19, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
-        lwi     r11, r11, TI_FLAGS;     /* get flags in thread info */
+        beqi    r11, 4f;                /* Signals to handle, handle them */
-        andi    r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
-        beqi    r11, 1f;                /* Signals to handle, handle them */
        addik   r5, r1, 0;              /* Arg 1: struct pt_regs *regs */
        bralid  r15, do_notify_resume;  /* Handle any signals */
-        addi    r6, r0, 1;              /* Arg 2: int in_syscall */
+        add     r6, r30, r0;            /* Arg 2: int in_syscall */
+        add     r30, r0, r0             /* no more restarts */
+        bri     1b
 /* Finally, return to user state.  */
-1:      set_bip;                        /*  Ints masked for state restore */
+4:      set_bip;                        /*  Ints masked for state restore */
        swi     CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */
        VM_OFF;
        tophys(r1,r1);
@@ -464,6 +466,7 @@ C_ENTRY(ret_from_kernel_thread):
        add     r3, r0, r0
 C_ENTRY(sys_rt_sigreturn_wrapper):
+        addik   r30, r0, 0              /* no restarts */
        brid    sys_rt_sigreturn        /* Do real work */
        addik   r5, r1, 0;              /* add user context as 1st arg */
@@ -571,20 +574,20 @@ C_ENTRY(ret_from_exc):
        /* We're returning to user mode, so check for various conditions that
           trigger rescheduling. */
+1:
        lwi     r11, CURRENT_TASK, TS_THREAD_INFO;      /* get thread info */
-        lwi     r11, r11, TI_FLAGS;     /* get flags in thread info */
+        lwi     r19, r11, TI_FLAGS;     /* get flags in thread info */
-        andi    r11, r11, _TIF_NEED_RESCHED;
+        andi    r11, r19, _TIF_NEED_RESCHED;
        beqi    r11, 5f;
 /* Call the scheduler before returning from a syscall/trap. */
        bralid  r15, schedule;  /* Call scheduler */
        nop;                            /* delay slot */
+        bri     1b
        /* Maybe handle a signal */
-5:      lwi     r11, CURRENT_TASK, TS_THREAD_INFO;      /* get thread info */
+5:      andi    r11, r19, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
-        lwi     r11, r11, TI_FLAGS;     /* get flags in thread info */
+        beqi    r11, 4f;                /* Signals to handle, handle them */
-        andi    r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
-        beqi    r11, 1f;                /* Signals to handle, handle them */
        /*
         * Handle a signal return; Pending signals should be in r18.
@@ -600,9 +603,10 @@ C_ENTRY(ret_from_exc):
        addik   r5, r1, 0;              /* Arg 1: struct pt_regs *regs */
        bralid  r15, do_notify_resume;  /* Handle any signals */
        addi    r6, r0, 0;              /* Arg 2: int in_syscall */
+        bri     1b
 /* Finally, return to user state.  */
-1:      set_bip;                        /* Ints masked for state restore */
+4:      set_bip;                        /* Ints masked for state restore */
        swi     CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */
        VM_OFF;
        tophys(r1,r1);
@@ -682,22 +686,23 @@ ret_from_irq:
        lwi     r11, r1, PT_MODE;
        bnei    r11, 2f;
+1:
        lwi     r11, CURRENT_TASK, TS_THREAD_INFO;
-        lwi     r11, r11, TI_FLAGS; /* MS: get flags from thread info */
+        lwi     r19, r11, TI_FLAGS; /* MS: get flags from thread info */
-        andi    r11, r11, _TIF_NEED_RESCHED;
+        andi    r11, r19, _TIF_NEED_RESCHED;
        beqi    r11, 5f
        bralid  r15, schedule;
        nop; /* delay slot */
+        bri     1b
    /* Maybe handle a signal */
-5:      lwi     r11, CURRENT_TASK, TS_THREAD_INFO; /* MS: get thread info */
+5:      andi    r11, r19, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
-        lwi     r11, r11, TI_FLAGS; /* get flags in thread info */
-        andi    r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
        beqid   r11, no_intr_resched
 /* Handle a signal return; Pending signals should be in r18. */
        addik   r5, r1, 0; /* Arg 1: struct pt_regs *regs */
        bralid  r15, do_notify_resume;  /* Handle any signals */
        addi    r6, r0, 0; /* Arg 2: int in_syscall */
+        bri     1b
 /* Finally, return to user state. */
 no_intr_resched:
@@ -815,28 +820,29 @@ dbtrap_call: /* Return point for kernel/user entry + 8 because of rtsd r15, 8 */
        lwi     r11, r1, PT_MODE;
        bnei    r11, 2f;
 /* MS: Return to user space - gdb */
+1:
        /* Get current task ptr into r11 */
        lwi     r11, CURRENT_TASK, TS_THREAD_INFO;      /* get thread info */
-        lwi     r11, r11, TI_FLAGS;     /* get flags in thread info */
+        lwi     r19, r11, TI_FLAGS;     /* get flags in thread info */
-        andi    r11, r11, _TIF_NEED_RESCHED;
+        andi    r11, r19, _TIF_NEED_RESCHED;
        beqi    r11, 5f;
        /* Call the scheduler before returning from a syscall/trap. */
        bralid  r15, schedule;  /* Call scheduler */
        nop;                            /* delay slot */
+        bri     1b
        /* Maybe handle a signal */
-5:      lwi     r11, CURRENT_TASK, TS_THREAD_INFO;      /* get thread info */
+5:      andi    r11, r19, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
-        lwi     r11, r11, TI_FLAGS;     /* get flags in thread info */
+        beqi    r11, 4f;                /* Signals to handle, handle them */
-        andi    r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
-        beqi    r11, 1f;                /* Signals to handle, handle them */
        addik   r5, r1, 0;              /* Arg 1: struct pt_regs *regs */
        bralid  r15, do_notify_resume;  /* Handle any signals */
        addi  r6, r0, 0;        /* Arg 2: int in_syscall */
+        bri     1b
 /* Finally, return to user state.  */
-1:      swi     CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */
+4:      swi     CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */
        VM_OFF;
        tophys(r1,r1);
        /* MS: Restore all regs */
diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
index ab1b9db661f3..b050219c42e6 100644
--- a/arch/microblaze/kernel/ptrace.c
+++ b/arch/microblaze/kernel/ptrace.c
@@ -164,29 +164,6 @@ asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
                tracehook_report_syscall_exit(regs, step);
 }
-#if 0
-static asmlinkage void syscall_trace(void)
-{
-        if (!test_thread_flag(TIF_SYSCALL_TRACE))
-                return;
-        if (!(current->ptrace & PT_PTRACED))
-                return;
-        /* The 0x80 provides a way for the tracing parent to distinguish
-         between a syscall stop and SIGTRAP delivery */
-        ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-                                ? 0x80 : 0));
-        /*
-         * this isn't the same as continuing with a signal, but it will do
-         * for normal use. strace only continues with a signal if the
-         * stopping signal is not SIGTRAP. -brl
-         */
-        if (current->exit_code) {
-                send_sig(current->exit_code, current, 1);
-                current->exit_code = 0;
-        }
-}
-#endif
 void ptrace_disable(struct task_struct *child)
 {
        /* nothing to do */
diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c
index ac3d0a0f4814..9f7a8bde0686 100644
--- a/arch/microblaze/kernel/signal.c
+++ b/arch/microblaze/kernel/signal.c
@@ -41,13 +41,6 @@
 #include <asm/cacheflush.h>
 #include <asm/syscalls.h>
-asmlinkage long
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
-                struct pt_regs *regs)
-{
-        return do_sigaltstack(uss, uoss, regs->r1);
-}
 /*
 * Do a signal return; undo the signal stack.
 */
@@ -109,9 +102,7 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
        if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &rval))
                goto badframe;
-        /* It is more difficult to avoid calling this function than to
+        if (restore_altstack(&frame->uc.uc_stack))
-         call it and ignore errors. */
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->r1) == -EFAULT)
                goto badframe;
        return rval;
@@ -194,11 +185,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        /* Create the ucontext. */
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(NULL, &frame->uc.uc_link);
-        err |= __put_user((void __user *)current->sas_ss_sp,
+        err |= __save_altstack(&frame->uc.uc_stack, regs->r1);
-                        &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->r1),
-                        &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
        err |= setup_sigcontext(&frame->uc.uc_mcontext,
                        regs, set->sig[0]);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
@@ -356,15 +343,6 @@ static void do_signal(struct pt_regs *regs, int in_syscall)
 asmlinkage void do_notify_resume(struct pt_regs *regs, int in_syscall)
 {
-        /*
-         * We want the common case to go fast, which
-         * is why we may in certain cases get here from
-         * kernel mode. Just return without doing anything
-         * if so.
-         */
-        if (kernel_mode(regs))
-                return;
        if (test_thread_flag(TIF_SIGPENDING))
                do_signal(regs, in_syscall);
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2ac626ab9d43..0772b5c5bc72 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -41,6 +41,12 @@ config MIPS
        select HAVE_MOD_ARCH_SPECIFIC
        select MODULES_USE_ELF_REL if MODULES
        select MODULES_USE_ELF_RELA if MODULES && 64BIT
+        select CLONE_BACKWARDS
+        select GENERIC_SIGALTSTACK
+        select GENERIC_COMPAT_RT_SIGACTION
+        select GENERIC_COMPAT_RT_SIGQUEUEINFO
+        select GENERIC_COMPAT_RT_SIGPROCMASK
+        select GENERIC_COMPAT_RT_SIGPENDING
 menu "Machine selection"
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 3c5d1464b7bd..ebaae9649f8a 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -288,6 +288,14 @@ struct compat_shmid64_ds {
        compat_ulong_t  __unused2;
 };
+/* MIPS has unusual order of fields in stack_t */
+typedef struct compat_sigaltstack {
+        compat_uptr_t                   ss_sp;
+        compat_size_t                   ss_size;
+        int                             ss_flags;
+} compat_stack_t;
+#define compat_sigaltstack compat_sigaltstack
 static inline int is_compat_task(void)
 {
        return test_thread_flag(TIF_32BIT_ADDR);
diff --git a/arch/mips/include/asm/sim.h b/arch/mips/include/asm/sim.h
index 0cd719fabb51..91831800c480 100644
--- a/arch/mips/include/asm/sim.h
+++ b/arch/mips/include/asm/sim.h
@@ -20,10 +20,10 @@
 #define save_static_function(symbol)                                    \
 __asm__(                                                                \
        ".text\n\t"                                                     \
-        ".globl\t" #symbol "\n\t"                                       \
+        ".globl\t__" #symbol "\n\t"                                     \
        ".align\t2\n\t"                                                 \
-        ".type\t" #symbol ", @function\n\t"                             \
+        ".type\t__" #symbol ", @function\n\t"                           \
-        ".ent\t" #symbol ", 0\n"                                        \
+        ".ent\t__" #symbol ", 0\n__"                                    \
        #symbol":\n\t"                                                  \
        ".frame\t$29, 0, $31\n\t"                                       \
        "sw\t$16,"__str(PT_R16)"($29)\t\t\t# save_static_function\n\t"  \
@@ -35,9 +35,9 @@ __asm__(								\
        "sw\t$22,"__str(PT_R22)"($29)\n\t"                              \
        "sw\t$23,"__str(PT_R23)"($29)\n\t"                              \
        "sw\t$30,"__str(PT_R30)"($29)\n\t"                              \
-        "j\t_" #symbol "\n\t"                                           \
+        "j\t" #symbol "\n\t"                                            \
-        ".end\t" #symbol "\n\t"                                         \
+        ".end\t__" #symbol "\n\t"                                       \
-        ".size\t" #symbol",. - " #symbol)
+        ".size\t__" #symbol",. - __" #symbol)
 #define nabi_no_regargs
@@ -48,10 +48,10 @@ __asm__(								\
 #define save_static_function(symbol)                                    \
 __asm__(                                                                \
        ".text\n\t"                                                     \
-        ".globl\t" #symbol "\n\t"                                       \
+        ".globl\t__" #symbol "\n\t"                                     \
        ".align\t2\n\t"                                                 \
-        ".type\t" #symbol ", @function\n\t"                             \
+        ".type\t__" #symbol ", @function\n\t"                           \
-        ".ent\t" #symbol ", 0\n"                                        \
+        ".ent\t__" #symbol ", 0\n__"                                    \
        #symbol":\n\t"                                                  \
        ".frame\t$29, 0, $31\n\t"                                       \
        "sd\t$16,"__str(PT_R16)"($29)\t\t\t# save_static_function\n\t"  \
@@ -63,9 +63,9 @@ __asm__(								\
        "sd\t$22,"__str(PT_R22)"($29)\n\t"                              \
        "sd\t$23,"__str(PT_R23)"($29)\n\t"                              \
        "sd\t$30,"__str(PT_R30)"($29)\n\t"                              \
-        "j\t_" #symbol "\n\t"                                           \
+        "j\t" #symbol "\n\t"                                            \
-        ".end\t" #symbol "\n\t"                                         \
+        ".end\t__" #symbol "\n\t"                                       \
-        ".size\t" #symbol",. - " #symbol)
+        ".size\t__" #symbol",. - __" #symbol)
 #define nabi_no_regargs                                                 \
        unsigned long __dummy0,                                         \
diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index 9e47cc11aa26..06f6463c24ad 100644
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -43,6 +43,8 @@
 # ifdef CONFIG_MIPS32_O32
 #  define __ARCH_WANT_COMPAT_SYS_TIME
 # endif
+#define __ARCH_WANT_SYS_FORK
+#define __ARCH_WANT_SYS_CLONE
 /* whitelists for checksyscalls */
 #define __IGNORE_select
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 7adab86c632c..253bd8ad7446 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -119,22 +119,6 @@ SYSCALL_DEFINE6(32_pwrite, unsigned int, fd, const char __user *, buf,
        return sys_pwrite64(fd, buf, count, merge_64(a4, a5));
 }
-SYSCALL_DEFINE2(32_sched_rr_get_interval, compat_pid_t, pid,
-        struct compat_timespec __user *, interval)
-{
-        struct timespec t;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
-        set_fs(old_fs);
-        if (put_user (t.tv_sec, &interval->tv_sec) ||
-            __put_user(t.tv_nsec, &interval->tv_nsec))
-                return -EFAULT;
-        return ret;
-}
 #ifdef CONFIG_SYSVIPC
 SYSCALL_DEFINE6(32_ipc, u32, call, long, first, long, second, long, third,
@@ -295,27 +279,6 @@ asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_a2,
                             merge_64(len_a4, len_a5));
 }
-save_static_function(sys32_clone);
-static int noinline __used
-_sys32_clone(nabi_no_regargs struct pt_regs regs)
-{
-        unsigned long clone_flags;
-        unsigned long newsp;
-        int __user *parent_tidptr, *child_tidptr;
-        clone_flags = regs.regs[4];
-        newsp = regs.regs[5];
-        if (!newsp)
-                newsp = regs.regs[29];
-        parent_tidptr = (int __user *) regs.regs[6];
-        /* Use __dummy4 instead of getting it off the stack, so that
-           syscall() works.  */
-        child_tidptr = (int __user *) __dummy4;
-        return do_fork(clone_flags, newsp, 0,
-                       parent_tidptr, child_tidptr);
-}
 asmlinkage long sys32_lookup_dcookie(u32 a0, u32 a1, char __user *buf,
        size_t len)
 {
@@ -328,10 +291,3 @@ SYSCALL_DEFINE6(32_fanotify_mark, int, fanotify_fd, unsigned int, flags,
        return sys_fanotify_mark(fanotify_fd, flags, merge_64(a3, a4),
                                 dfd, pathname);
 }
-SYSCALL_DEFINE6(32_futex, u32 __user *, uaddr, int, op, u32, val,
-                struct compat_timespec __user *, utime, u32 __user *, uaddr2,
-                u32, val3)
-{
-        return compat_sys_futex(uaddr, op, val, utime, uaddr2, val3);
-}
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index a11c6f9fdd5e..a33d2ef8f273 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -156,7 +156,8 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
        *childregs = *regs;
        childregs->regs[7] = 0; /* Clear error flag */
        childregs->regs[2] = 0; /* Child gets zero as return value */
-        childregs->regs[29] = usp;
+        if (usp)
+                childregs->regs[29] = usp;
        ti->addr_limit = USER_DS;
        p->thread.reg29 = (unsigned long) childregs;
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index d20a4bc9ed05..80ff9422215f 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -226,7 +226,7 @@ einval:	li	v0, -ENOSYS
        .macro  syscalltable
        sys     sys_syscall             8       /* 4000 */
        sys     sys_exit                1
-        sys     sys_fork                0
+        sys     __sys_fork              0
        sys     sys_read                3
        sys     sys_write               3
        sys     sys_open                3       /* 4005 */
@@ -344,7 +344,7 @@ einval:	li	v0, -ENOSYS
        sys     sys_ipc                 6
        sys     sys_fsync               1
        sys     sys_sigreturn           0
-        sys     sys_clone               0       /* 4120 */
+        sys     __sys_clone             6       /* 4120 */
        sys     sys_setdomainname       2
        sys     sys_newuname            1
        sys     sys_ni_syscall          0       /* sys_modify_ldt */
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index b64f642da073..9444ad9ea575 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -170,8 +170,8 @@ sys_call_table:
        PTR     sys_socketpair
        PTR     sys_setsockopt
        PTR     sys_getsockopt
-        PTR     sys_clone                       /* 5055 */
+        PTR     __sys_clone                     /* 5055 */
-        PTR     sys_fork
+        PTR     __sys_fork
        PTR     sys_execve
        PTR     sys_exit
        PTR     sys_wait4
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index c29ac197f446..3b18a8e29215 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -117,8 +117,8 @@ EXPORT(sysn32_call_table)
        PTR     sys_mprotect                    /* 6010 */
        PTR     sys_munmap
        PTR     sys_brk
-        PTR     sys_32_rt_sigaction
+        PTR     compat_sys_rt_sigaction
-        PTR     sys_32_rt_sigprocmask
+        PTR     compat_sys_rt_sigprocmask
        PTR     compat_sys_ioctl                /* 6015 */
        PTR     sys_pread64
        PTR     sys_pwrite64
@@ -159,8 +159,8 @@ EXPORT(sysn32_call_table)
        PTR     sys_socketpair
        PTR     compat_sys_setsockopt
        PTR     sys_getsockopt
-        PTR     sys_clone                       /* 6055 */
+        PTR     __sys_clone                     /* 6055 */
-        PTR     sys_fork
+        PTR     __sys_fork
        PTR     compat_sys_execve
        PTR     sys_exit
        PTR     compat_sys_wait4
@@ -229,11 +229,11 @@ EXPORT(sysn32_call_table)
        PTR     sys_getsid
        PTR     sys_capget
        PTR     sys_capset
-        PTR     sys_32_rt_sigpending            /* 6125 */
+        PTR     compat_sys_rt_sigpending        /* 6125 */
        PTR     compat_sys_rt_sigtimedwait
-        PTR     sys_32_rt_sigqueueinfo
+        PTR     compat_sys_rt_sigqueueinfo
-        PTR     sysn32_rt_sigsuspend
+        PTR     compat_sys_rt_sigsuspend
-        PTR     sys32_sigaltstack
+        PTR     compat_sys_sigaltstack
        PTR     compat_sys_utime                /* 6130 */
        PTR     sys_mknod
        PTR     sys_32_personality
@@ -249,7 +249,7 @@ EXPORT(sysn32_call_table)
        PTR     sys_sched_getscheduler
        PTR     sys_sched_get_priority_max
        PTR     sys_sched_get_priority_min
-        PTR     sys_32_sched_rr_get_interval    /* 6145 */
+        PTR     compat_sys_sched_rr_get_interval        /* 6145 */
        PTR     sys_mlock
        PTR     sys_munlock
        PTR     sys_mlockall
@@ -298,7 +298,7 @@ EXPORT(sysn32_call_table)
        PTR     sys_fremovexattr
        PTR     sys_tkill
        PTR     sys_ni_syscall
-        PTR     sys_32_futex
+        PTR     compat_sys_futex
        PTR     compat_sys_sched_setaffinity    /* 6195 */
        PTR     compat_sys_sched_getaffinity
        PTR     sys_cacheflush
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index cf3e75e46650..063cd0d6ddd2 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -194,7 +194,7 @@ einval:	li	v0, -ENOSYS
 sys_call_table:
        PTR     sys32_syscall                   /* 4000 */
        PTR     sys_exit
-        PTR     sys_fork
+        PTR     __sys_fork
        PTR     sys_read
        PTR     sys_write
        PTR     compat_sys_open                 /* 4005 */
@@ -312,7 +312,7 @@ sys_call_table:
        PTR     sys_32_ipc
        PTR     sys_fsync
        PTR     sys32_sigreturn
-        PTR     sys32_clone                     /* 4120 */
+        PTR     __sys_clone                     /* 4120 */
        PTR     sys_setdomainname
        PTR     sys_newuname
        PTR     sys_ni_syscall                  /* sys_modify_ldt */
@@ -357,7 +357,7 @@ sys_call_table:
        PTR     sys_sched_yield
        PTR     sys_sched_get_priority_max
        PTR     sys_sched_get_priority_min
-        PTR     sys_32_sched_rr_get_interval    /* 4165 */
+        PTR     compat_sys_sched_rr_get_interval        /* 4165 */
        PTR     compat_sys_nanosleep
        PTR     sys_mremap
        PTR     sys_accept
@@ -386,19 +386,19 @@ sys_call_table:
        PTR     sys_getresgid
        PTR     sys_prctl
        PTR     sys32_rt_sigreturn
-        PTR     sys_32_rt_sigaction
+        PTR     compat_sys_rt_sigaction
-        PTR     sys_32_rt_sigprocmask           /* 4195 */
+        PTR     compat_sys_rt_sigprocmask       /* 4195 */
-        PTR     sys_32_rt_sigpending
+        PTR     compat_sys_rt_sigpending
        PTR     compat_sys_rt_sigtimedwait
-        PTR     sys_32_rt_sigqueueinfo
+        PTR     compat_sys_rt_sigqueueinfo
-        PTR     sys32_rt_sigsuspend
+        PTR     compat_sys_rt_sigsuspend
        PTR     sys_32_pread                    /* 4200 */
        PTR     sys_32_pwrite
        PTR     sys_chown
        PTR     sys_getcwd
        PTR     sys_capget
        PTR     sys_capset                      /* 4205 */
-        PTR     sys32_sigaltstack
+        PTR     compat_sys_sigaltstack
        PTR     sys_32_sendfile
        PTR     sys_ni_syscall
        PTR     sys_ni_syscall
@@ -430,7 +430,7 @@ sys_call_table:
        PTR     sys_fremovexattr                /* 4235 */
        PTR     sys_tkill
        PTR     sys_sendfile64
-        PTR     sys_32_futex
+        PTR     compat_sys_futex
        PTR     compat_sys_sched_setaffinity
        PTR     compat_sys_sched_getaffinity    /* 4240 */
        PTR     compat_sys_io_setup
@@ -470,7 +470,7 @@ sys_call_table:
        PTR     compat_sys_mq_notify            /* 4275 */
        PTR     compat_sys_mq_getsetattr
        PTR     sys_ni_syscall                  /* sys_vserver */
-        PTR     sys_32_waitid
+        PTR     compat_sys_waitid
        PTR     sys_ni_syscall                  /* available, was setaltroot */
        PTR     sys_add_key                     /* 4280 */
        PTR     sys_request_key
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 4d790d1f03d6..95b019d92f50 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -247,31 +247,12 @@ void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
 */
 #ifdef CONFIG_TRAD_SIGNALS
-asmlinkage int sys_sigsuspend(nabi_no_regargs struct pt_regs regs)
+SYSCALL_DEFINE1(sigsuspend, sigset_t __user *, uset)
 {
-        sigset_t newset;
+        return sys_rt_sigsuspend(uset, sizeof(sigset_t));
-        sigset_t __user *uset;
-        uset = (sigset_t __user *) regs.regs[4];
-        if (copy_from_user(&newset, uset, sizeof(sigset_t)))
-                return -EFAULT;
-        return sigsuspend(&newset);
 }
 #endif
-SYSCALL_DEFINE2(rt_sigsuspend, sigset_t __user *,unewset, size_t, sigsetsize)
-{
-        sigset_t newset;
-        /* XXX Don't preclude handling different sized sigset_t's.  */
-        if (sigsetsize != sizeof(sigset_t))
-                return -EINVAL;
-        if (copy_from_user(&newset, unewset, sizeof(newset)))
-                return -EFAULT;
-        return sigsuspend(&newset);
-}
 #ifdef CONFIG_TRAD_SIGNALS
 SYSCALL_DEFINE3(sigaction, int, sig, const struct sigaction __user *, act,
        struct sigaction __user *, oact)
@@ -313,15 +294,6 @@ SYSCALL_DEFINE3(sigaction, int, sig, const struct sigaction __user *, act,
 }
 #endif
-asmlinkage int sys_sigaltstack(nabi_no_regargs struct pt_regs regs)
-{
-        const stack_t __user *uss = (const stack_t __user *) regs.regs[4];
-        stack_t __user *uoss = (stack_t __user *) regs.regs[5];
-        unsigned long usp = regs.regs[29];
-        return do_sigaltstack(uss, uoss, usp);
-}
 #ifdef CONFIG_TRAD_SIGNALS
 asmlinkage void sys_sigreturn(nabi_no_regargs struct pt_regs regs)
 {
@@ -378,9 +350,8 @@ asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
        else if (sig)
                force_sig(sig, current);
-        /* It is more difficult to avoid calling this function than to
+        if (restore_altstack(&frame->rs_uc.uc_stack))
-           call it and ignore errors.  */
+                goto badframe;
-        do_sigaltstack(&frame->rs_uc.uc_stack, NULL, regs.regs[29]);
        /*
         * Don't let your children do this ...
@@ -457,12 +428,7 @@ static int setup_rt_frame(void *sig_return, struct k_sigaction *ka,
        /* Create the ucontext.  */
        err |= __put_user(0, &frame->rs_uc.uc_flags);
        err |= __put_user(NULL, &frame->rs_uc.uc_link);
-        err |= __put_user((void __user *)current->sas_ss_sp,
+        err |= __save_altstack(&frame->rs_uc.uc_stack, regs->regs[29]);
-                          &frame->rs_uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->regs[29]),
-                          &frame->rs_uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size,
-                          &frame->rs_uc.uc_stack.ss_size);
        err |= setup_sigcontext(regs, &frame->rs_uc.uc_mcontext);
        err |= __copy_to_user(&frame->rs_uc.uc_sigmask, set, sizeof(*set));
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index da1b56a39ac7..ad7c2be0c33d 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -55,23 +55,10 @@ extern asmlinkage int fpu_emulator_restore_context32(struct sigcontext32 __user
 typedef unsigned int __sighandler32_t;
 typedef void (*vfptr_t)(void);
-struct sigaction32 {
-        unsigned int            sa_flags;
-        __sighandler32_t        sa_handler;
-        compat_sigset_t         sa_mask;
-};
-/* IRIX compatible stack_t  */
-typedef struct sigaltstack32 {
-        s32 ss_sp;
-        compat_size_t ss_size;
-        int ss_flags;
-} stack32_t;
 struct ucontext32 {
        u32                 uc_flags;
        s32                 uc_link;
-        stack32_t           uc_stack;
+        compat_stack_t      uc_stack;
        struct sigcontext32 uc_mcontext;
        compat_sigset_t     uc_sigmask;   /* mask last for extensibility */
 };
@@ -280,36 +267,13 @@ static inline int get_sigset(sigset_t *kbuf, const compat_sigset_t __user *ubuf)
 * Atomically swap in the new signal mask, and wait for a signal.
 */
-asmlinkage int sys32_sigsuspend(nabi_no_regargs struct pt_regs regs)
+asmlinkage int sys32_sigsuspend(compat_sigset_t __user *uset)
 {
-        compat_sigset_t __user *uset;
+        return compat_sys_rt_sigsuspend(uset, sizeof(compat_sigset_t));
-        sigset_t newset;
-        uset = (compat_sigset_t __user *) regs.regs[4];
-        if (get_sigset(&newset, uset))
-                return -EFAULT;
-        return sigsuspend(&newset);
-}
-asmlinkage int sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
-{
-        compat_sigset_t __user *uset;
-        sigset_t newset;
-        size_t sigsetsize;
-        /* XXX Don't preclude handling different sized sigset_t's.  */
-        sigsetsize = regs.regs[5];
-        if (sigsetsize != sizeof(compat_sigset_t))
-                return -EINVAL;
-        uset = (compat_sigset_t __user *) regs.regs[4];
-        if (get_sigset(&newset, uset))
-                return -EFAULT;
-        return sigsuspend(&newset);
 }
-SYSCALL_DEFINE3(32_sigaction, long, sig, const struct sigaction32 __user *, act,
+SYSCALL_DEFINE3(32_sigaction, long, sig, const struct compat_sigaction __user *, act,
-        struct sigaction32 __user *, oact)
+        struct compat_sigaction __user *, oact)
 {
        struct k_sigaction new_ka, old_ka;
        int ret;
@@ -350,45 +314,6 @@ SYSCALL_DEFINE3(32_sigaction, long, sig, const struct sigaction32 __user *, act,
        return ret;
 }
-asmlinkage int sys32_sigaltstack(nabi_no_regargs struct pt_regs regs)
-{
-        const stack32_t __user *uss = (const stack32_t __user *) regs.regs[4];
-        stack32_t __user *uoss = (stack32_t __user *) regs.regs[5];
-        unsigned long usp = regs.regs[29];
-        stack_t kss, koss;
-        int ret, err = 0;
-        mm_segment_t old_fs = get_fs();
-        s32 sp;
-        if (uss) {
-                if (!access_ok(VERIFY_READ, uss, sizeof(*uss)))
-                        return -EFAULT;
-                err |= __get_user(sp, &uss->ss_sp);
-                kss.ss_sp = (void __user *) (long) sp;
-                err |= __get_user(kss.ss_size, &uss->ss_size);
-                err |= __get_user(kss.ss_flags, &uss->ss_flags);
-                if (err)
-                        return -EFAULT;
-        }
-        set_fs(KERNEL_DS);
-        ret = do_sigaltstack(uss ? (stack_t __user *)&kss : NULL,
-                             uoss ? (stack_t __user *)&koss : NULL, usp);
-        set_fs(old_fs);
-        if (!ret && uoss) {
-                if (!access_ok(VERIFY_WRITE, uoss, sizeof(*uoss)))
-                        return -EFAULT;
-                sp = (int) (unsigned long) koss.ss_sp;
-                err |= __put_user(sp, &uoss->ss_sp);
-                err |= __put_user(koss.ss_size, &uoss->ss_size);
-                err |= __put_user(koss.ss_flags, &uoss->ss_flags);
-                if (err)
-                        return -EFAULT;
-        }
-        return ret;
-}
 int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
 {
        int err;
@@ -490,10 +415,7 @@ badframe:
 asmlinkage void sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
 {
        struct rt_sigframe32 __user *frame;
-        mm_segment_t old_fs;
        sigset_t set;
-        stack_t st;
-        s32 sp;
        int sig;
        frame = (struct rt_sigframe32 __user *) regs.regs[29];
@@ -510,22 +432,9 @@ asmlinkage void sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
        else if (sig)
                force_sig(sig, current);
-        /* The ucontext contains a stack32_t, so we must convert!  */
+        if (compat_restore_altstack(&frame->rs_uc.uc_stack))
-        if (__get_user(sp, &frame->rs_uc.uc_stack.ss_sp))
-                goto badframe;
-        st.ss_sp = (void __user *)(long) sp;
-        if (__get_user(st.ss_size, &frame->rs_uc.uc_stack.ss_size))
-                goto badframe;
-        if (__get_user(st.ss_flags, &frame->rs_uc.uc_stack.ss_flags))
                goto badframe;
-        /* It is more difficult to avoid calling this function than to
-           call it and ignore errors.  */
-        old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        do_sigaltstack((stack_t __user *)&st, NULL, regs.regs[29]);
-        set_fs(old_fs);
        /*
         * Don't let your children do this ...
         */
@@ -590,7 +499,6 @@ static int setup_rt_frame_32(void *sig_return, struct k_sigaction *ka,
 {
        struct rt_sigframe32 __user *frame;
        int err = 0;
-        s32 sp;
        frame = get_sigframe(ka, regs, sizeof(*frame));
        if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
@@ -602,13 +510,7 @@ static int setup_rt_frame_32(void *sig_return, struct k_sigaction *ka,
        /* Create the ucontext.  */
        err |= __put_user(0, &frame->rs_uc.uc_flags);
        err |= __put_user(0, &frame->rs_uc.uc_link);
-        sp = (int) (long) current->sas_ss_sp;
+        err |= __compat_save_altstack(&frame->rs_uc.uc_stack, regs->regs[29]);
-        err |= __put_user(sp,
-                          &frame->rs_uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->regs[29]),
-                          &frame->rs_uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size,
-                          &frame->rs_uc.uc_stack.ss_size);
        err |= setup_sigcontext32(regs, &frame->rs_uc.uc_mcontext);
        err |= __copy_conv_sigset_to_user(&frame->rs_uc.uc_sigmask, set);
@@ -656,131 +558,6 @@ struct mips_abi mips_abi_32 = {
        .restart        = __NR_O32_restart_syscall
 };
-SYSCALL_DEFINE4(32_rt_sigaction, int, sig,
-        const struct sigaction32 __user *, act,
-        struct sigaction32 __user *, oact, unsigned int, sigsetsize)
-{
-        struct k_sigaction new_sa, old_sa;
-        int ret = -EINVAL;
-        /* XXX: Don't preclude handling different sized sigset_t's.  */
-        if (sigsetsize != sizeof(sigset_t))
-                goto out;
-        if (act) {
-                s32 handler;
-                int err = 0;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)))
-                        return -EFAULT;
-                err |= __get_user(handler, &act->sa_handler);
-                new_sa.sa.sa_handler = (void __user *)(s64)handler;
-                err |= __get_user(new_sa.sa.sa_flags, &act->sa_flags);
-                err |= get_sigset(&new_sa.sa.sa_mask, &act->sa_mask);
-                if (err)
-                        return -EFAULT;
-        }
-        ret = do_sigaction(sig, act ? &new_sa : NULL, oact ? &old_sa : NULL);
-        if (!ret && oact) {
-                int err = 0;
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)))
-                        return -EFAULT;
-                err |= __put_user((u32)(u64)old_sa.sa.sa_handler,
-                                   &oact->sa_handler);
-                err |= __put_user(old_sa.sa.sa_flags, &oact->sa_flags);
-                err |= put_sigset(&old_sa.sa.sa_mask, &oact->sa_mask);
-                if (err)
-                        return -EFAULT;
-        }
-out:
-        return ret;
-}
-SYSCALL_DEFINE4(32_rt_sigprocmask, int, how, compat_sigset_t __user *, set,
-        compat_sigset_t __user *, oset, unsigned int, sigsetsize)
-{
-        sigset_t old_set, new_set;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        if (set && get_sigset(&new_set, set))
-                return -EFAULT;
-        set_fs(KERNEL_DS);
-        ret = sys_rt_sigprocmask(how, set ? (sigset_t __user *)&new_set : NULL,
-                                 oset ? (sigset_t __user *)&old_set : NULL,
-                                 sigsetsize);
-        set_fs(old_fs);
-        if (!ret && oset && put_sigset(&old_set, oset))
-                return -EFAULT;
-        return ret;
-}
-SYSCALL_DEFINE2(32_rt_sigpending, compat_sigset_t __user *, uset,
-        unsigned int, sigsetsize)
-{
-        int ret;
-        sigset_t set;
-        mm_segment_t old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        ret = sys_rt_sigpending((sigset_t __user *)&set, sigsetsize);
-        set_fs(old_fs);
-        if (!ret && put_sigset(&set, uset))
-                return -EFAULT;
-        return ret;
-}
-SYSCALL_DEFINE3(32_rt_sigqueueinfo, int, pid, int, sig,
-        compat_siginfo_t __user *, uinfo)
-{
-        siginfo_t info;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        if (copy_from_user(&info, uinfo, 3*sizeof(int)) ||
-            copy_from_user(info._sifields._pad, uinfo->_sifields._pad, SI_PAD_SIZE))
-                return -EFAULT;
-        set_fs(KERNEL_DS);
-        ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *)&info);
-        set_fs(old_fs);
-        return ret;
-}
-SYSCALL_DEFINE5(32_waitid, int, which, compat_pid_t, pid,
-             compat_siginfo_t __user *, uinfo, int, options,
-             struct compat_rusage __user *, uru)
-{
-        siginfo_t info;
-        struct rusage ru;
-        long ret;
-        mm_segment_t old_fs = get_fs();
-        info.si_signo = 0;
-        set_fs(KERNEL_DS);
-        ret = sys_waitid(which, pid, (siginfo_t __user *) &info, options,
-                         uru ? (struct rusage __user *) &ru : NULL);
-        set_fs(old_fs);
-        if (ret < 0 || info.si_signo == 0)
-                return ret;
-        if (uru && (ret = put_compat_rusage(&ru, uru)))
-                return ret;
-        BUG_ON(info.si_code & __SI_MASK);
-        info.si_code |= __SI_CHLD;
-        return copy_siginfo_to_user32(uinfo, &info);
-}
 static int signal32_init(void)
 {
        if (cpu_has_fpu) {
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index 3574c145511b..5f4ef2ae6199 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -50,18 +50,10 @@
 extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *);
 extern int restore_sigcontext(struct pt_regs *, struct sigcontext __user *);
-/* IRIX compatible stack_t  */
-typedef struct sigaltstack32 {
-        s32 ss_sp;
-        compat_size_t ss_size;
-        int ss_flags;
-} stack32_t;
 struct ucontextn32 {
        u32                 uc_flags;
        s32                 uc_link;
-        stack32_t           uc_stack;
+        compat_stack_t      uc_stack;
        struct sigcontext   uc_mcontext;
        compat_sigset_t     uc_sigmask;   /* mask last for extensibility */
 };
@@ -73,34 +65,10 @@ struct rt_sigframe_n32 {
        struct ucontextn32 rs_uc;
 };
-extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
-asmlinkage int sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
-{
-        compat_sigset_t __user *unewset;
-        compat_sigset_t uset;
-        size_t sigsetsize;
-        sigset_t newset;
-        /* XXX Don't preclude handling different sized sigset_t's.  */
-        sigsetsize = regs.regs[5];
-        if (sigsetsize != sizeof(sigset_t))
-                return -EINVAL;
-        unewset = (compat_sigset_t __user *) regs.regs[4];
-        if (copy_from_user(&uset, unewset, sizeof(uset)))
-                return -EFAULT;
-        sigset_from_compat(&newset, &uset);
-        return sigsuspend(&newset);
-}
 asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
 {
        struct rt_sigframe_n32 __user *frame;
-        mm_segment_t old_fs;
        sigset_t set;
-        stack_t st;
-        s32 sp;
        int sig;
        frame = (struct rt_sigframe_n32 __user *) regs.regs[29];
@@ -117,23 +85,9 @@ asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
        else if (sig)
                force_sig(sig, current);
-        /* The ucontext contains a stack32_t, so we must convert!  */
+        if (compat_restore_altstack(&frame->rs_uc.uc_stack))
-        if (__get_user(sp, &frame->rs_uc.uc_stack.ss_sp))
-                goto badframe;
-        st.ss_sp = (void __user *)(long) sp;
-        if (__get_user(st.ss_size, &frame->rs_uc.uc_stack.ss_size))
-                goto badframe;
-        if (__get_user(st.ss_flags, &frame->rs_uc.uc_stack.ss_flags))
                goto badframe;
-        /* It is more difficult to avoid calling this function than to
-           call it and ignore errors.  */
-        old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        do_sigaltstack((stack_t __user *)&st, NULL, regs.regs[29]);
-        set_fs(old_fs);
        /*
         * Don't let your children do this ...
         */
@@ -153,7 +107,6 @@ static int setup_rt_frame_n32(void *sig_return, struct k_sigaction *ka,
 {
        struct rt_sigframe_n32 __user *frame;
        int err = 0;
-        s32 sp;
        frame = get_sigframe(ka, regs, sizeof(*frame));
        if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
@@ -165,13 +118,7 @@ static int setup_rt_frame_n32(void *sig_return, struct k_sigaction *ka,
        /* Create the ucontext.  */
        err |= __put_user(0, &frame->rs_uc.uc_flags);
        err |= __put_user(0, &frame->rs_uc.uc_link);
-        sp = (int) (long) current->sas_ss_sp;
+        err |= __compat_save_altstack(&frame->rs_uc.uc_stack, regs->regs[29]);
-        err |= __put_user(sp,
-                          &frame->rs_uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->regs[29]),
-                          &frame->rs_uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size,
-                          &frame->rs_uc.uc_stack.ss_size);
        err |= setup_sigcontext(regs, &frame->rs_uc.uc_mcontext);
        err |= __copy_conv_sigset_to_user(&frame->rs_uc.uc_sigmask, set);
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 201cb76b4df9..b32466a1a1d2 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -46,20 +46,14 @@
 * argument.  Historically that used to be expensive in Linux.  These days
 * the performance advantage is negligible.
 */
-asmlinkage int sysm_pipe(nabi_no_regargs volatile struct pt_regs regs)
+asmlinkage int sysm_pipe(void)
 {
        int fd[2];
-        int error, res;
+        int error = do_pipe_flags(fd, 0);
+        if (error)
-        error = do_pipe_flags(fd, 0);
+                return error;
-        if (error) {
+        current_pt_regs()->regs[3] = fd[1];
-                res = error;
+        return fd[0];
-                goto out;
-        }
-        regs.regs[3] = fd[1];
-        res = fd[0];
-out:
-        return res;
 }
 SYSCALL_DEFINE6(mips_mmap, unsigned long, addr, unsigned long, len,
@@ -89,43 +83,7 @@ SYSCALL_DEFINE6(mips_mmap2, unsigned long, addr, unsigned long, len,
 }
 save_static_function(sys_fork);
-static int __used noinline
-_sys_fork(nabi_no_regargs struct pt_regs regs)
-{
-        return do_fork(SIGCHLD, regs.regs[29], 0, NULL, NULL);
-}
 save_static_function(sys_clone);
-static int __used noinline
-_sys_clone(nabi_no_regargs struct pt_regs regs)
-{
-        unsigned long clone_flags;
-        unsigned long newsp;
-        int __user *parent_tidptr, *child_tidptr;
-        clone_flags = regs.regs[4];
-        newsp = regs.regs[5];
-        if (!newsp)
-                newsp = regs.regs[29];
-        parent_tidptr = (int __user *) regs.regs[6];
-#ifdef CONFIG_32BIT
-        /* We need to fetch the fifth argument off the stack.  */
-        child_tidptr = NULL;
-        if (clone_flags & (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)) {
-                int __user *__user *usp = (int __user *__user *) regs.regs[29];
-                if (regs.regs[2] == __NR_syscall) {
-                        if (get_user (child_tidptr, &usp[5]))
-                                return -EFAULT;
-                }
-                else if (get_user (child_tidptr, &usp[4]))
-                        return -EFAULT;
-        }
-#else
-        child_tidptr = (int __user *) regs.regs[8];
-#endif
-        return do_fork(clone_flags, newsp, 0,
-                       parent_tidptr, child_tidptr);
-}
 SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
 {
@@ -138,10 +96,10 @@ SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
        return 0;
 }
-static inline int mips_atomic_set(struct pt_regs *regs,
+static inline int mips_atomic_set(unsigned long addr, unsigned long new)
-        unsigned long addr, unsigned long new)
 {
        unsigned long old, tmp;
+        struct pt_regs *regs;
        unsigned int err;
        if (unlikely(addr & 3))
@@ -222,6 +180,7 @@ static inline int mips_atomic_set(struct pt_regs *regs,
        if (unlikely(err))
                return err;
+        regs = current_pt_regs();
        regs->regs[2] = old;
        regs->regs[7] = 0;      /* No error */
@@ -235,22 +194,14 @@ static inline int mips_atomic_set(struct pt_regs *regs,
        : "r" (regs));
        /* unreached.  Honestly.  */
-        while (1);
+        unreachable();
 }
-save_static_function(sys_sysmips);
+SYSCALL_DEFINE3(sysmips, long, cmd, long, arg1, long, arg2)
-static int __used noinline
-_sys_sysmips(nabi_no_regargs struct pt_regs regs)
 {
-        long cmd, arg1, arg2;
-        cmd = regs.regs[4];
-        arg1 = regs.regs[5];
-        arg2 = regs.regs[6];
        switch (cmd) {
        case MIPS_ATOMIC_SET:
-                return mips_atomic_set(&regs, arg1, arg2);
+                return mips_atomic_set(arg1, arg2);
        case MIPS_FIXADE:
                if (arg1 & ~3)
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index e70001cfa05b..12bf06f9abe5 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -10,6 +10,9 @@ config MN10300
        select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER
        select GENERIC_CLOCKEVENTS
        select MODULES_USE_ELF_RELA
+        select GENERIC_SIGALTSTACK
+        select OLD_SIGSUSPEND3
+        select OLD_SIGACTION
 config AM33_2
        def_bool n
diff --git a/arch/mn10300/include/asm/signal.h b/arch/mn10300/include/asm/signal.h
index 288ade5ec94e..214ff5e9fe60 100644
--- a/arch/mn10300/include/asm/signal.h
+++ b/arch/mn10300/include/asm/signal.h
@@ -26,13 +26,6 @@ typedef struct {
        unsigned long   sig[_NSIG_WORDS];
 } sigset_t;
-struct old_sigaction {
-        __sighandler_t sa_handler;
-        old_sigset_t sa_mask;
-        unsigned long sa_flags;
-        __sigrestore_t sa_restorer;
-};
 #define __ARCH_HAS_SA_RESTORER
 #include <asm/sigcontext.h>
diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c
index f570b3085ef9..9dfac5cd16e6 100644
--- a/arch/mn10300/kernel/signal.c
+++ b/arch/mn10300/kernel/signal.c
@@ -32,59 +32,6 @@
 #define DEBUG_SIG 0
 /*
- * atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage long sys_sigsuspend(int history0, int history1, old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
-/*
- * set signal action syscall
- */
-asmlinkage long sys_sigaction(int sig,
-                              const struct old_sigaction __user *act,
-                              struct old_sigaction __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        if (act) {
-                old_sigset_t mask;
-                if (verify_area(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (verify_area(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
-}
-/*
- * set alternate signal stack syscall
- */
-asmlinkage long sys_sigaltstack(const stack_t __user *uss, stack_t *uoss)
-{
-        return do_sigaltstack(uss, uoss, current_frame()->sp);
-}
-/*
 * do a signal return; undo the signal stack.
 */
 static int restore_sigcontext(struct pt_regs *regs,
@@ -193,8 +140,7 @@ asmlinkage long sys_rt_sigreturn(void)
        if (restore_sigcontext(current_frame(), &frame->uc.uc_mcontext, &d0))
                goto badframe;
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, current_frame()->sp) ==
+        if (restore_altstack(&frame->uc.uc_stack))
-            -EFAULT)
                goto badframe;
        return d0;
@@ -359,9 +305,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        /* create the ucontext.  */
        if (__put_user(0, &frame->uc.uc_flags) ||
            __put_user(0, &frame->uc.uc_link) ||
-            __put_user((void *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp) ||
+            __save_altstack(&frame->uc.uc_stack, regs->sp) ||
-            __put_user(sas_ss_flags(regs->sp), &frame->uc.uc_stack.ss_flags) ||
-            __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size) ||
            setup_sigcontext(&frame->uc.uc_mcontext,
                             &frame->fpuctx, regs, set->sig[0]) ||
            __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)))
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 0ac66f67521f..d3632eb98a1c 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -22,6 +22,7 @@ config OPENRISC
        select GENERIC_STRNCPY_FROM_USER
        select GENERIC_STRNLEN_USER
        select MODULES_USE_ELF_RELA
+        select GENERIC_SIGALTSTACK
 config MMU
        def_bool y
diff --git a/arch/openrisc/kernel/entry.S b/arch/openrisc/kernel/entry.S
index 5e5b30601bbf..54afd0a129fe 100644
--- a/arch/openrisc/kernel/entry.S
+++ b/arch/openrisc/kernel/entry.S
@@ -1083,10 +1083,6 @@ ENTRY(__sys_fork)
        l.j     _fork_save_extra_regs_and_call
         l.addi r3,r1,0
-ENTRY(sys_sigaltstack)
-        l.j     _sys_sigaltstack
-         l.addi r5,r1,0
 ENTRY(sys_rt_sigreturn)
        l.j     _sys_rt_sigreturn
         l.addi r3,r1,0
diff --git a/arch/openrisc/kernel/signal.c b/arch/openrisc/kernel/signal.c
index ddedc8a77861..ae167f7e081a 100644
--- a/arch/openrisc/kernel/signal.c
+++ b/arch/openrisc/kernel/signal.c
@@ -33,12 +33,6 @@
 #define DEBUG_SIG 0
-asmlinkage long
-_sys_sigaltstack(const stack_t *uss, stack_t *uoss, struct pt_regs *regs)
-{
-        return do_sigaltstack(uss, uoss, regs->sp);
-}
 struct rt_sigframe {
        struct siginfo *pinfo;
        void *puc;
@@ -103,9 +97,7 @@ asmlinkage long _sys_rt_sigreturn(struct pt_regs *regs)
        if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
                goto badframe;
-        /* It is more difficult to avoid calling this function than to
+        if (restore_altstack(&frame->uc.uc_stack))
-           call it and ignore errors.  */
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT)
                goto badframe;
        return regs->gpr[11];
@@ -205,10 +197,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext));
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(NULL, &frame->uc.uc_link);
-        err |= __put_user((void *)current->sas_ss_sp,
+        err |= __save_altstack(&frame->uc.uc_stack, regs->sp);
-                          &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->sp), &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
        err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index b77feffbadea..2bd407ffaebf 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -23,6 +23,11 @@ config PARISC
        select HAVE_MOD_ARCH_SPECIFIC
        select MODULES_USE_ELF_RELA
        select CLONE_BACKWARDS
+        select GENERIC_SIGALTSTACK
+        select GENERIC_COMPAT_RT_SIGACTION
+        select GENERIC_COMPAT_RT_SIGQUEUEINFO
+        select GENERIC_COMPAT_RT_SIGPROCMASK
+        select GENERIC_COMPAT_RT_SIGPENDING
        help
          The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index bfb44247d7a7..240d153daec3 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1748,44 +1748,6 @@ ENTRY(sys_rt_sigreturn_wrapper)
        LDREG   PT_GR28(%r1),%r28  /* reload original r28 for syscall_exit */
 ENDPROC(sys_rt_sigreturn_wrapper)
-ENTRY(sys_sigaltstack_wrapper)
-        /* Get the user stack pointer */
-        LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
-        ldo     TASK_REGS(%r1),%r24     /* get pt regs */
-        LDREG   TASK_PT_GR30(%r24),%r24
-        STREG   %r2, -RP_OFFSET(%r30)
-#ifdef CONFIG_64BIT
-        ldo     FRAME_SIZE(%r30), %r30
-        BL      do_sigaltstack,%r2
-        ldo     -16(%r30),%r29          /* Reference param save area */
-#else
-        BL      do_sigaltstack,%r2
-        ldo     FRAME_SIZE(%r30), %r30
-#endif
-        ldo     -FRAME_SIZE(%r30), %r30
-        LDREG   -RP_OFFSET(%r30), %r2
-        bv      %r0(%r2)
-        nop
-ENDPROC(sys_sigaltstack_wrapper)
-#ifdef CONFIG_64BIT
-ENTRY(sys32_sigaltstack_wrapper)
-        /* Get the user stack pointer */
-        LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r24
-        LDREG   TASK_PT_GR30(%r24),%r24
-        STREG   %r2, -RP_OFFSET(%r30)
-        ldo     FRAME_SIZE(%r30), %r30
-        BL      do_sigaltstack32,%r2
-        ldo     -16(%r30),%r29          /* Reference param save area */
-        ldo     -FRAME_SIZE(%r30), %r30
-        LDREG   -RP_OFFSET(%r30), %r2
-        bv      %r0(%r2)
-        nop
-ENDPROC(sys32_sigaltstack_wrapper)
-#endif
 ENTRY(syscall_exit)
        /* NOTE: HP-UX syscalls also come through here
         * after hpux_syscall_exit fixes up return
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 537996955998..64d315f6d2a4 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -143,7 +143,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
                        goto give_sigsegv;
                DBG(1,"sys_rt_sigreturn: usp %#08lx stack 0x%p\n", 
                                usp, &compat_frame->uc.uc_stack);
-                if (do_sigaltstack32(&compat_frame->uc.uc_stack, NULL, usp) == -EFAULT)
+                if (compat_restore_altstack(&compat_frame->uc.uc_stack))
                        goto give_sigsegv;
        } else
 #endif
@@ -154,7 +154,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
                        goto give_sigsegv;
                DBG(1,"sys_rt_sigreturn: usp %#08lx stack 0x%p\n", 
                                usp, &frame->uc.uc_stack);
-                if (do_sigaltstack(&frame->uc.uc_stack, NULL, usp) == -EFAULT)
+                if (restore_altstack(&frame->uc.uc_stack))
                        goto give_sigsegv;
        }
                
@@ -260,15 +260,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        if (is_compat_task()) {
                DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &compat_frame->info);
                err |= copy_siginfo_to_user32(&compat_frame->info, info);
-                DBG(1,"SETUP_RT_FRAME: 1\n");
+                err |= __compat_save_altstack( &compat_frame->uc.uc_stack, regs->gr[30]);
-                compat_val = (compat_int_t)current->sas_ss_sp;
-                err |= __put_user(compat_val, &compat_frame->uc.uc_stack.ss_sp);
-                DBG(1,"SETUP_RT_FRAME: 2\n");
-                compat_val = (compat_int_t)current->sas_ss_size;
-                err |= __put_user(compat_val, &compat_frame->uc.uc_stack.ss_size);
-                DBG(1,"SETUP_RT_FRAME: 3\n");
-                compat_val = sas_ss_flags(regs->gr[30]);                
-                err |= __put_user(compat_val, &compat_frame->uc.uc_stack.ss_flags);             
                DBG(1,"setup_rt_frame: frame->uc = 0x%p\n", &compat_frame->uc);
                DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &compat_frame->uc.uc_mcontext);
                err |= setup_sigcontext32(&compat_frame->uc.uc_mcontext, 
@@ -280,10 +272,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        {       
                DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &frame->info);
                err |= copy_siginfo_to_user(&frame->info, info);
-                err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
+                err |= __save_altstack(&frame->uc.uc_stack, regs->gr[30]);
-                err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
-                err |= __put_user(sas_ss_flags(regs->gr[30]),
-                                  &frame->uc.uc_stack.ss_flags);
                DBG(1,"setup_rt_frame: frame->uc = 0x%p\n", &frame->uc);
                DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &frame->uc.uc_mcontext);
                err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, in_syscall);
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 5dede04f2f3e..33eca1b04926 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -60,129 +60,6 @@ sigset_64to32(compat_sigset_t *s32, sigset_t *s64)
        s32->sig[1] = (s64->sig[0] >> 32) & 0xffffffffUL;
 }
-static int
-put_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
-{
-        compat_sigset_t s;
-        if (sz != sizeof *set)
-                return -EINVAL;
-        sigset_64to32(&s, set);
-        return copy_to_user(up, &s, sizeof s);
-}
-static int
-get_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
-{
-        compat_sigset_t s;
-        int r;
-        if (sz != sizeof *set)
-                return -EINVAL;
-        if ((r = copy_from_user(&s, up, sz)) == 0) {
-                sigset_32to64(set, &s);
-        }
-        return r;
-}
-int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set, compat_sigset_t __user *oset,
-                                    unsigned int sigsetsize)
-{
-        sigset_t old_set, new_set;
-        int ret;
-        if (set && get_sigset32(set, &new_set, sigsetsize))
-                return -EFAULT;
-        
-        KERNEL_SYSCALL(ret, sys_rt_sigprocmask, how, set ? (sigset_t __user *)&new_set : NULL,
-                                 oset ? (sigset_t __user *)&old_set : NULL, sigsetsize);
-        if (!ret && oset && put_sigset32(oset, &old_set, sigsetsize))
-                return -EFAULT;
-        return ret;
-}
-int sys32_rt_sigpending(compat_sigset_t __user *uset, unsigned int sigsetsize)
-{
-        int ret;
-        sigset_t set;
-        KERNEL_SYSCALL(ret, sys_rt_sigpending, (sigset_t __user *)&set, sigsetsize);
-        if (!ret && put_sigset32(uset, &set, sigsetsize))
-                return -EFAULT;
-        return ret;
-}
-long
-sys32_rt_sigaction(int sig, const struct sigaction32 __user *act, struct sigaction32 __user *oact,
-                 size_t sigsetsize)
-{
-        struct k_sigaction32 new_sa32, old_sa32;
-        struct k_sigaction new_sa, old_sa;
-        int ret = -EINVAL;
-        if (act) {
-                if (copy_from_user(&new_sa32.sa, act, sizeof new_sa32.sa))
-                        return -EFAULT;
-                new_sa.sa.sa_handler = (__sighandler_t)(unsigned long)new_sa32.sa.sa_handler;
-                new_sa.sa.sa_flags = new_sa32.sa.sa_flags;
-                sigset_32to64(&new_sa.sa.sa_mask, &new_sa32.sa.sa_mask);
-        }
-        ret = do_sigaction(sig, act ? &new_sa : NULL, oact ? &old_sa : NULL);
-        if (!ret && oact) {
-                sigset_64to32(&old_sa32.sa.sa_mask, &old_sa.sa.sa_mask);
-                old_sa32.sa.sa_flags = old_sa.sa.sa_flags;
-                old_sa32.sa.sa_handler = (__sighandler_t32)(unsigned long)old_sa.sa.sa_handler;
-                if (copy_to_user(oact, &old_sa32.sa, sizeof old_sa32.sa))
-                        return -EFAULT;
-        }
-        return ret;
-}
-int 
-do_sigaltstack32 (const compat_stack_t __user *uss32, compat_stack_t __user *uoss32, unsigned long sp)
-{
-        compat_stack_t ss32, oss32;
-        stack_t ss, oss;
-        stack_t *ssp = NULL, *ossp = NULL;
-        int ret;
-        if (uss32) {
-                if (copy_from_user(&ss32, uss32, sizeof ss32))
-                        return -EFAULT;
-                ss.ss_sp = (void __user *)(unsigned long)ss32.ss_sp;
-                ss.ss_flags = ss32.ss_flags;
-                ss.ss_size = ss32.ss_size;
-                ssp = &ss;
-        }
-        if (uoss32)
-                ossp = &oss;
-        KERNEL_SYSCALL(ret, do_sigaltstack, (const stack_t __user *)ssp, (stack_t __user *)ossp, sp);
-        if (!ret && uoss32) {
-                oss32.ss_sp = (unsigned int)(unsigned long)oss.ss_sp;
-                oss32.ss_flags = oss.ss_flags;
-                oss32.ss_size = oss.ss_size;
-                if (copy_to_user(uoss32, &oss32, sizeof *uoss32))
-                        return -EFAULT;
-        }
-        return ret;
-}
 long
 restore_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __user * rf,
                struct pt_regs *regs)
@@ -499,22 +376,3 @@ copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from)
        }
        return err;
 }
-asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
-        struct compat_siginfo __user *uinfo)
-{
-        siginfo_t info;
-        if (copy_siginfo_from_user32(&info, uinfo))
-                return -EFAULT;
-        /* Not even root can pretend to send signals from the kernel.
-           Nor can they impersonate a kill(), which adds source info.  */
-        if (info.si_code >= 0)
-                return -EPERM;
-        info.si_signo = sig;
-        /* POSIX.1b doesn't mention process groups.  */
-        return kill_proc_info(sig, &info, pid);
-}
diff --git a/arch/parisc/kernel/signal32.h b/arch/parisc/kernel/signal32.h
index 08a88b5349a2..72ab41a51f32 100644
--- a/arch/parisc/kernel/signal32.h
+++ b/arch/parisc/kernel/signal32.h
@@ -21,23 +21,6 @@
 #include <linux/compat.h>
-typedef compat_uptr_t compat_sighandler_t;
-typedef struct compat_sigaltstack {
-        compat_uptr_t ss_sp;
-        compat_int_t ss_flags;
-        compat_size_t ss_size;
-} compat_stack_t;
-/* Most things should be clean enough to redefine this at will, if care
-   is taken to make libc match.  */
-struct compat_sigaction {
-        compat_sighandler_t sa_handler;
-        compat_uint_t sa_flags;
-        compat_sigset_t sa_mask;               /* mask last for extensibility */
-};
 /* 32-bit ucontext as seen from an 64-bit kernel */
 struct compat_ucontext {
        compat_uint_t uc_flags;
@@ -51,10 +34,6 @@ struct compat_ucontext {
 /* ELF32 signal handling */
-struct k_sigaction32 {
-        struct compat_sigaction sa;
-};
 int copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from);
 int copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from);
@@ -102,8 +81,6 @@ struct compat_rt_sigframe {
 void sigset_32to64(sigset_t *s64, compat_sigset_t *s32);
 void sigset_64to32(compat_sigset_t *s32, sigset_t *s64);
-int do_sigaltstack32 (const compat_stack_t __user *uss32, 
-                compat_stack_t __user *uoss32, unsigned long sp);
 long restore_sigcontext32(struct compat_sigcontext __user *sc, 
                struct compat_regfile __user *rf,
                struct pt_regs *regs);
diff --git a/arch/parisc/kernel/sys32.h b/arch/parisc/kernel/sys32.h
index 06c2090cfaba..60dd470f39f8 100644
--- a/arch/parisc/kernel/sys32.h
+++ b/arch/parisc/kernel/sys32.h
@@ -33,16 +33,4 @@
    set_fs (old_fs); \
 }
-#ifdef CONFIG_COMPAT
-typedef __u32 __sighandler_t32;
-struct sigaction32 {
-        __sighandler_t32 sa_handler;
-        unsigned int sa_flags;
-        compat_sigset_t sa_mask;                /* mask last for extensibility */
-};
-#endif
 #endif
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 9cfdaa19ab63..9b6a376cb12b 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -61,18 +61,6 @@ asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23,
    return -ENOSYS;
 }
-asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
-        struct compat_timespec __user *interval)
-{
-        struct timespec t;
-        int ret;
-        KERNEL_SYSCALL(ret, sys_sched_rr_get_interval, pid, (struct timespec __user *)&t);
-        if (put_compat_timespec(&t, interval))
-                return -EFAULT;
-        return ret;
-}
 struct msgbuf32 {
    int mtype;
    char mtext[1];
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 54d950b067b7..dd52c23c0dcd 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -250,12 +250,12 @@
        /* These 2 would've worked if someone had defined struct timespec
         * carefully, like timeval for example (which is about the same).
         * Unfortunately it contains a long :-( */
-        ENTRY_DIFF(sched_rr_get_interval)
+        ENTRY_COMP(sched_rr_get_interval)
        ENTRY_COMP(nanosleep)
        ENTRY_SAME(mremap)
        ENTRY_SAME(setresuid)
        ENTRY_SAME(getresuid)           /* 165 */
-        ENTRY_DIFF(sigaltstack_wrapper)
+        ENTRY_COMP(sigaltstack)
        ENTRY_SAME(ni_syscall)          /* query_module */
        ENTRY_SAME(poll)
        /* structs contain pointers and an in_addr... */
@@ -265,9 +265,9 @@
        ENTRY_SAME(prctl)
        /* signals need a careful review */
        ENTRY_SAME(rt_sigreturn_wrapper)
-        ENTRY_DIFF(rt_sigaction)
+        ENTRY_COMP(rt_sigaction)
-        ENTRY_DIFF(rt_sigprocmask)      /* 175 */
+        ENTRY_COMP(rt_sigprocmask)      /* 175 */
-        ENTRY_DIFF(rt_sigpending)
+        ENTRY_COMP(rt_sigpending)
        ENTRY_COMP(rt_sigtimedwait)
        /* even though the struct siginfo_t is different, it appears like
         * all the paths use values which should be same wide and narrow.
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 17903f1f356b..ec89a7b11f7b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -144,6 +144,13 @@ config PPC
        select HAVE_MOD_ARCH_SPECIFIC
        select MODULES_USE_ELF_RELA
        select CLONE_BACKWARDS
+        select GENERIC_SIGALTSTACK
+        select GENERIC_COMPAT_RT_SIGACTION
+        select GENERIC_COMPAT_RT_SIGQUEUEINFO
+        select GENERIC_COMPAT_RT_SIGPROCMASK
+        select GENERIC_COMPAT_RT_SIGPENDING
+        select OLD_SIGSUSPEND
+        select OLD_SIGACTION if PPC32
 config EARLY_PRINTK
        bool
@@ -154,6 +161,7 @@ config COMPAT
        default y if PPC64
        select COMPAT_BINFMT_ELF
        select ARCH_WANT_OLD_COMPAT_IPC
+        select COMPAT_OLD_SIGACTION
 config SYSVIPC_COMPAT
        bool
diff --git a/arch/powerpc/include/asm/syscalls.h b/arch/powerpc/include/asm/syscalls.h
index 6949c42ffac2..23be8f1e7e64 100644
--- a/arch/powerpc/include/asm/syscalls.h
+++ b/arch/powerpc/include/asm/syscalls.h
@@ -5,9 +5,7 @@
 #include <linux/compiler.h>
 #include <linux/linkage.h>
 #include <linux/types.h>
-#include <asm/signal.h>
-struct pt_regs;
 struct rtas_args;
 asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,
@@ -16,15 +14,8 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,
 asmlinkage unsigned long sys_mmap2(unsigned long addr, size_t len,
                unsigned long prot, unsigned long flags,
                unsigned long fd, unsigned long pgoff);
-asmlinkage long sys_pipe(int __user *fildes);
-asmlinkage long sys_pipe2(int __user *fildes, int flags);
 asmlinkage long ppc64_personality(unsigned long personality);
 asmlinkage int ppc_rtas(struct rtas_args __user *uargs);
-asmlinkage time_t sys64_time(time_t __user * tloc);
-asmlinkage long sys_sigaltstack(const stack_t __user *uss,
-                stack_t __user *uoss, unsigned long r5, unsigned long r6,
-                unsigned long r7, unsigned long r8, struct pt_regs *regs);
 #endif /* __KERNEL__ */
 #endif /* __ASM_POWERPC_SYSCALLS_H */
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index 97909d3b1d7b..d906f33441c6 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -10,8 +10,8 @@ SYSCALL_SPU(read)
 SYSCALL_SPU(write)
 COMPAT_SYS_SPU(open)
 SYSCALL_SPU(close)
-COMPAT_SYS_SPU(waitpid)
+SYSCALL_SPU(waitpid)
-COMPAT_SYS_SPU(creat)
+SYSCALL_SPU(creat)
 SYSCALL_SPU(link)
 SYSCALL_SPU(unlink)
 COMPAT_SYS(execve)
@@ -36,13 +36,13 @@ SYSCALL(pause)
 COMPAT_SYS(utime)
 SYSCALL(ni_syscall)
 SYSCALL(ni_syscall)
-COMPAT_SYS_SPU(access)
+SYSCALL_SPU(access)
-COMPAT_SYS_SPU(nice)
+SYSCALL_SPU(nice)
 SYSCALL(ni_syscall)
 SYSCALL_SPU(sync)
-COMPAT_SYS_SPU(kill)
+SYSCALL_SPU(kill)
 SYSCALL_SPU(rename)
-COMPAT_SYS_SPU(mkdir)
+SYSCALL_SPU(mkdir)
 SYSCALL_SPU(rmdir)
 SYSCALL_SPU(dup)
 SYSCALL_SPU(pipe)
@@ -60,10 +60,10 @@ SYSCALL(ni_syscall)
 COMPAT_SYS_SPU(ioctl)
 COMPAT_SYS_SPU(fcntl)
 SYSCALL(ni_syscall)
-COMPAT_SYS_SPU(setpgid)
+SYSCALL_SPU(setpgid)
 SYSCALL(ni_syscall)
 SYSX(sys_ni_syscall,sys_olduname, sys_olduname)
-COMPAT_SYS_SPU(umask)
+SYSCALL_SPU(umask)
 SYSCALL_SPU(chroot)
 COMPAT_SYS(ustat)
 SYSCALL_SPU(dup2)
@@ -72,23 +72,24 @@ SYSCALL_SPU(getpgrp)
 SYSCALL_SPU(setsid)
 SYS32ONLY(sigaction)
 SYSCALL_SPU(sgetmask)
-COMPAT_SYS_SPU(ssetmask)
+SYSCALL_SPU(ssetmask)
 SYSCALL_SPU(setreuid)
 SYSCALL_SPU(setregid)
+#define compat_sys_sigsuspend sys_sigsuspend
 SYS32ONLY(sigsuspend)
 COMPAT_SYS(sigpending)
-COMPAT_SYS_SPU(sethostname)
+SYSCALL_SPU(sethostname)
 COMPAT_SYS_SPU(setrlimit)
 COMPAT_SYS(old_getrlimit)
 COMPAT_SYS_SPU(getrusage)
 COMPAT_SYS_SPU(gettimeofday)
 COMPAT_SYS_SPU(settimeofday)
-COMPAT_SYS_SPU(getgroups)
+SYSCALL_SPU(getgroups)
-COMPAT_SYS_SPU(setgroups)
+SYSCALL_SPU(setgroups)
 SYSX(sys_ni_syscall,sys_ni_syscall,ppc_select)
 SYSCALL_SPU(symlink)
 OLDSYS(lstat)
-COMPAT_SYS_SPU(readlink)
+SYSCALL_SPU(readlink)
 SYSCALL(uselib)
 SYSCALL(swapon)
 SYSCALL(reboot)
@@ -99,14 +100,14 @@ COMPAT_SYS_SPU(truncate)
 COMPAT_SYS_SPU(ftruncate)
 SYSCALL_SPU(fchmod)
 SYSCALL_SPU(fchown)
-COMPAT_SYS_SPU(getpriority)
+SYSCALL_SPU(getpriority)
-COMPAT_SYS_SPU(setpriority)
+SYSCALL_SPU(setpriority)
 SYSCALL(ni_syscall)
 COMPAT_SYS(statfs)
 COMPAT_SYS(fstatfs)
 SYSCALL(ni_syscall)
 COMPAT_SYS_SPU(socketcall)
-COMPAT_SYS_SPU(syslog)
+SYSCALL_SPU(syslog)
 COMPAT_SYS_SPU(setitimer)
 COMPAT_SYS_SPU(getitimer)
 COMPAT_SYS_SPU(newstat)
@@ -124,7 +125,7 @@ COMPAT_SYS(ipc)
 SYSCALL_SPU(fsync)
 SYS32ONLY(sigreturn)
 PPC_SYS(clone)
-COMPAT_SYS_SPU(setdomainname)
+SYSCALL_SPU(setdomainname)
 SYSCALL_SPU(newuname)
 SYSCALL(ni_syscall)
 COMPAT_SYS_SPU(adjtimex)
@@ -135,10 +136,10 @@ SYSCALL(init_module)
 SYSCALL(delete_module)
 SYSCALL(ni_syscall)
 SYSCALL(quotactl)
-COMPAT_SYS_SPU(getpgid)
+SYSCALL_SPU(getpgid)
 SYSCALL_SPU(fchdir)
 SYSCALL_SPU(bdflush)
-COMPAT_SYS(sysfs)
+SYSCALL_SPU(sysfs)
 SYSX_SPU(ppc64_personality,ppc64_personality,sys_personality)
 SYSCALL(ni_syscall)
 SYSCALL_SPU(setfsuid)
@@ -150,21 +151,21 @@ SYSCALL_SPU(flock)
 SYSCALL_SPU(msync)
 COMPAT_SYS_SPU(readv)
 COMPAT_SYS_SPU(writev)
-COMPAT_SYS_SPU(getsid)
+SYSCALL_SPU(getsid)
 SYSCALL_SPU(fdatasync)
 COMPAT_SYS(sysctl)
 SYSCALL_SPU(mlock)
 SYSCALL_SPU(munlock)
 SYSCALL_SPU(mlockall)
 SYSCALL_SPU(munlockall)
-COMPAT_SYS_SPU(sched_setparam)
+SYSCALL_SPU(sched_setparam)
-COMPAT_SYS_SPU(sched_getparam)
+SYSCALL_SPU(sched_getparam)
-COMPAT_SYS_SPU(sched_setscheduler)
+SYSCALL_SPU(sched_setscheduler)
-COMPAT_SYS_SPU(sched_getscheduler)
+SYSCALL_SPU(sched_getscheduler)
 SYSCALL_SPU(sched_yield)
-COMPAT_SYS_SPU(sched_get_priority_max)
+SYSCALL_SPU(sched_get_priority_max)
-COMPAT_SYS_SPU(sched_get_priority_min)
+SYSCALL_SPU(sched_get_priority_min)
-SYSX_SPU(sys_sched_rr_get_interval,compat_sys_sched_rr_get_interval_wrapper,sys_sched_rr_get_interval)
+COMPAT_SYS_SPU(sched_rr_get_interval)
 COMPAT_SYS_SPU(nanosleep)
 SYSCALL_SPU(mremap)
 SYSCALL_SPU(setresuid)
@@ -174,7 +175,7 @@ SYSCALL_SPU(poll)
 SYSCALL(ni_syscall)
 SYSCALL_SPU(setresgid)
 SYSCALL_SPU(getresgid)
-COMPAT_SYS_SPU(prctl)
+SYSCALL_SPU(prctl)
 COMPAT_SYS(rt_sigreturn)
 COMPAT_SYS(rt_sigaction)
 COMPAT_SYS(rt_sigprocmask)
@@ -253,7 +254,7 @@ COMPAT_SYS_SPU(clock_gettime)
 COMPAT_SYS_SPU(clock_getres)
 COMPAT_SYS_SPU(clock_nanosleep)
 SYSX(ppc64_swapcontext,ppc32_swapcontext,ppc_swapcontext)
-COMPAT_SYS_SPU(tgkill)
+SYSCALL_SPU(tgkill)
 COMPAT_SYS_SPU(utimes)
 COMPAT_SYS_SPU(statfs64)
 COMPAT_SYS_SPU(fstatfs64)
@@ -276,8 +277,8 @@ COMPAT_SYS(add_key)
 COMPAT_SYS(request_key)
 COMPAT_SYS(keyctl)
 COMPAT_SYS(waitid)
-COMPAT_SYS(ioprio_set)
+SYSCALL(ioprio_set)
-COMPAT_SYS(ioprio_get)
+SYSCALL(ioprio_get)
 SYSCALL(inotify_init)
 SYSCALL(inotify_add_watch)
 SYSCALL(inotify_rm_watch)
diff --git a/arch/powerpc/include/uapi/asm/signal.h b/arch/powerpc/include/uapi/asm/signal.h
index 6defdd65594e..6c69ee94fd8d 100644
--- a/arch/powerpc/include/uapi/asm/signal.h
+++ b/arch/powerpc/include/uapi/asm/signal.h
@@ -90,6 +90,7 @@ typedef struct {
 #include <asm-generic/signal-defs.h>
+#ifndef __KERNEL__
 struct old_sigaction {
        __sighandler_t sa_handler;
        old_sigset_t sa_mask;
@@ -97,7 +98,6 @@ struct old_sigaction {
        __sigrestore_t sa_restorer;
 };
-#ifndef __KERNEL__
 struct sigaction {
        __sighandler_t sa_handler;
        unsigned long sa_flags;
diff --git a/arch/powerpc/kernel/ppc32.h b/arch/powerpc/kernel/ppc32.h
index 02fb0ee26093..a27c914d5802 100644
--- a/arch/powerpc/kernel/ppc32.h
+++ b/arch/powerpc/kernel/ppc32.h
@@ -16,30 +16,6 @@
 /* These are here to support 32-bit syscalls on a 64-bit kernel. */
-#define __old_sigaction32       old_sigaction32
-struct __old_sigaction32 {
-        compat_uptr_t           sa_handler;
-        compat_old_sigset_t     sa_mask;
-        unsigned int            sa_flags;
-        compat_uptr_t           sa_restorer;     /* not used by Linux/SPARC yet */
-};
-struct sigaction32 {
-       compat_uptr_t  sa_handler;       /* Really a pointer, but need to deal with 32 bits */
-       unsigned int sa_flags;
-       compat_uptr_t sa_restorer;       /* Another 32 bit pointer */
-       compat_sigset_t sa_mask;         /* A 32 bit mask */
-};
-typedef struct sigaltstack_32 {
-        unsigned int ss_sp;
-        int ss_flags;
-        compat_size_t ss_size;
-} stack_32_t;
 struct pt_regs32 {
        unsigned int gpr[32];
        unsigned int nip;
@@ -75,7 +51,7 @@ struct mcontext32 {
 struct ucontext32 { 
        unsigned int            uc_flags;
        unsigned int            uc_link;
-        stack_32_t              uc_stack;
+        compat_stack_t          uc_stack;
        int                     uc_pad[7];
        compat_uptr_t           uc_regs;        /* points to uc_mcontext field */
        compat_sigset_t         uc_sigmask;     /* mask last for extensibility */
diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c
index 3b997118df50..fa99dc54965c 100644
--- a/arch/powerpc/kernel/signal.c
+++ b/arch/powerpc/kernel/signal.c
@@ -169,10 +169,3 @@ void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags)
                tracehook_notify_resume(regs);
        }
 }
-long sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
-                unsigned long r5, unsigned long r6, unsigned long r7,
-                unsigned long r8, struct pt_regs *regs)
-{
-        return do_sigaltstack(uss, uoss, regs->gpr[1]);
-}
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 9ec3fed3caac..802ab5ea36cb 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -56,9 +56,7 @@
 #undef DEBUG_SIG
 #ifdef CONFIG_PPC64
-#define sys_sigsuspend  compat_sys_sigsuspend
 #define sys_rt_sigreturn        compat_sys_rt_sigreturn
-#define sys_sigaction   compat_sys_sigaction
 #define sys_swapcontext compat_sys_swapcontext
 #define sys_sigreturn   compat_sys_sigreturn
@@ -67,6 +65,8 @@
 #define mcontext        mcontext32
 #define ucontext        ucontext32
+#define __save_altstack __compat_save_altstack
 /*
 * Userspace code may pass a ucontext which doesn't include VSX added
 * at the end.  We need to check for this case.
@@ -129,23 +129,6 @@ static inline int get_sigset_t(sigset_t *set,
        return 0;
 }
-static inline int get_old_sigaction(struct k_sigaction *new_ka,
-                struct old_sigaction __user *act)
-{
-        compat_old_sigset_t mask;
-        compat_uptr_t handler, restorer;
-        if (get_user(handler, &act->sa_handler) ||
-            __get_user(restorer, &act->sa_restorer) ||
-            __get_user(new_ka->sa.sa_flags, &act->sa_flags) ||
-            __get_user(mask, &act->sa_mask))
-                return -EFAULT;
-        new_ka->sa.sa_handler = compat_ptr(handler);
-        new_ka->sa.sa_restorer = compat_ptr(restorer);
-        siginitset(&new_ka->sa.sa_mask, mask);
-        return 0;
-}
 #define to_user_ptr(p)          ptr_to_compat(p)
 #define from_user_ptr(p)        compat_ptr(p)
@@ -195,21 +178,6 @@ static inline int get_sigset_t(sigset_t *set, const sigset_t __user *uset)
        return copy_from_user(set, uset, sizeof(*uset));
 }
-static inline int get_old_sigaction(struct k_sigaction *new_ka,
-                struct old_sigaction __user *act)
-{
-        old_sigset_t mask;
-        if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                        __get_user(new_ka->sa.sa_handler, &act->sa_handler) ||
-                        __get_user(new_ka->sa.sa_restorer, &act->sa_restorer) ||
-                        __get_user(new_ka->sa.sa_flags, &act->sa_flags) ||
-                        __get_user(mask, &act->sa_mask))
-                return -EFAULT;
-        siginitset(&new_ka->sa.sa_mask, mask);
-        return 0;
-}
 #define to_user_ptr(p)          ((unsigned long)(p))
 #define from_user_ptr(p)        ((void __user *)(p))
@@ -233,50 +201,8 @@ static inline int restore_general_regs(struct pt_regs *regs,
                return -EFAULT;
        return 0;
 }
-#endif /* CONFIG_PPC64 */
-/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-long sys_sigsuspend(old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
-long sys_sigaction(int sig, struct old_sigaction __user *act,
-                struct old_sigaction __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-#ifdef CONFIG_PPC64
-        if (sig < 0)
-                sig = -sig;
 #endif
-        if (act) {
-                if (get_old_sigaction(&new_ka, act))
-                        return -EFAULT;
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(to_user_ptr(old_ka.sa.sa_handler),
-                            &oact->sa_handler) ||
-                    __put_user(to_user_ptr(old_ka.sa.sa_restorer),
-                            &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
-}
 /*
 * When we have signals to deliver, we set up on the
 * user stack, going down from the original stack pointer:
@@ -588,89 +514,6 @@ static long restore_user_regs(struct pt_regs *regs,
 }
 #ifdef CONFIG_PPC64
-long compat_sys_rt_sigaction(int sig, const struct sigaction32 __user *act,
-                struct sigaction32 __user *oact, size_t sigsetsize)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        /* XXX: Don't preclude handling different sized sigset_t's.  */
-        if (sigsetsize != sizeof(compat_sigset_t))
-                return -EINVAL;
-        if (act) {
-                compat_uptr_t handler;
-                ret = get_user(handler, &act->sa_handler);
-                new_ka.sa.sa_handler = compat_ptr(handler);
-                ret |= get_sigset_t(&new_ka.sa.sa_mask, &act->sa_mask);
-                ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
-                if (ret)
-                        return -EFAULT;
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                ret = put_user(to_user_ptr(old_ka.sa.sa_handler), &oact->sa_handler);
-                ret |= put_sigset_t(&oact->sa_mask, &old_ka.sa.sa_mask);
-                ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-        }
-        return ret;
-}
-/*
- * Note: it is necessary to treat how as an unsigned int, with the
- * corresponding cast to a signed int to insure that the proper
- * conversion (sign extension) between the register representation
- * of a signed int (msr in 32-bit mode) and the register representation
- * of a signed int (msr in 64-bit mode) is performed.
- */
-long compat_sys_rt_sigprocmask(u32 how, compat_sigset_t __user *set,
-                compat_sigset_t __user *oset, size_t sigsetsize)
-{
-        sigset_t s;
-        sigset_t __user *up;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        if (set) {
-                if (get_sigset_t(&s, set))
-                        return -EFAULT;
-        }
-        set_fs(KERNEL_DS);
-        /* This is valid because of the set_fs() */
-        up = (sigset_t __user *) &s;
-        ret = sys_rt_sigprocmask((int)how, set ? up : NULL, oset ? up : NULL,
-                                 sigsetsize);
-        set_fs(old_fs);
-        if (ret)
-                return ret;
-        if (oset) {
-                if (put_sigset_t(oset, &s))
-                        return -EFAULT;
-        }
-        return 0;
-}
-long compat_sys_rt_sigpending(compat_sigset_t __user *set, compat_size_t sigsetsize)
-{
-        sigset_t s;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        /* The __user pointer cast is valid because of the set_fs() */
-        ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
-        set_fs(old_fs);
-        if (!ret) {
-                if (put_sigset_t(set, &s))
-                        return -EFAULT;
-        }
-        return ret;
-}
 int copy_siginfo_to_user32(struct compat_siginfo __user *d, siginfo_t *s)
 {
        int err;
@@ -739,79 +582,6 @@ int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from)
        return 0;
 }
-/*
- * Note: it is necessary to treat pid and sig as unsigned ints, with the
- * corresponding cast to a signed int to insure that the proper conversion
- * (sign extension) between the register representation of a signed int
- * (msr in 32-bit mode) and the register representation of a signed int
- * (msr in 64-bit mode) is performed.
- */
-long compat_sys_rt_sigqueueinfo(u32 pid, u32 sig, compat_siginfo_t __user *uinfo)
-{
-        siginfo_t info;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        ret = copy_siginfo_from_user32(&info, uinfo);
-        if (unlikely(ret))
-                return ret;
-        set_fs (KERNEL_DS);
-        /* The __user pointer cast is valid becasuse of the set_fs() */
-        ret = sys_rt_sigqueueinfo((int)pid, (int)sig, (siginfo_t __user *) &info);
-        set_fs (old_fs);
-        return ret;
-}
-/*
- *  Start Alternate signal stack support
- *
- *  System Calls
- *       sigaltatck               compat_sys_sigaltstack
- */
-int compat_sys_sigaltstack(u32 __new, u32 __old, int r5,
-                      int r6, int r7, int r8, struct pt_regs *regs)
-{
-        stack_32_t __user * newstack = compat_ptr(__new);
-        stack_32_t __user * oldstack = compat_ptr(__old);
-        stack_t uss, uoss;
-        int ret;
-        mm_segment_t old_fs;
-        unsigned long sp;
-        compat_uptr_t ss_sp;
-        /*
-         * set sp to the user stack on entry to the system call
-         * the system call router sets R9 to the saved registers
-         */
-        sp = regs->gpr[1];
-        /* Put new stack info in local 64 bit stack struct */
-        if (newstack) {
-                if (get_user(ss_sp, &newstack->ss_sp) ||
-                    __get_user(uss.ss_flags, &newstack->ss_flags) ||
-                    __get_user(uss.ss_size, &newstack->ss_size))
-                        return -EFAULT;
-                uss.ss_sp = compat_ptr(ss_sp);
-        }
-        old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        /* The __user pointer casts are valid because of the set_fs() */
-        ret = do_sigaltstack(
-                newstack ? (stack_t __user *) &uss : NULL,
-                oldstack ? (stack_t __user *) &uoss : NULL,
-                sp);
-        set_fs(old_fs);
-        /* Copy the stack information to the user output buffer */
-        if (!ret && oldstack  &&
-                (put_user(ptr_to_compat(uoss.ss_sp), &oldstack->ss_sp) ||
-                 __put_user(uoss.ss_flags, &oldstack->ss_flags) ||
-                 __put_user(uoss.ss_size, &oldstack->ss_size)))
-                return -EFAULT;
-        return ret;
-}
 #endif /* CONFIG_PPC64 */
 /*
@@ -838,10 +608,7 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
        if (copy_siginfo_to_user(&rt_sf->info, info)
            || __put_user(0, &rt_sf->uc.uc_flags)
            || __put_user(0, &rt_sf->uc.uc_link)
-            || __put_user(current->sas_ss_sp, &rt_sf->uc.uc_stack.ss_sp)
+            || __save_altstack(&rt_sf->uc.uc_stack, regs->gpr[1])
-            || __put_user(sas_ss_flags(regs->gpr[1]),
-                          &rt_sf->uc.uc_stack.ss_flags)
-            || __put_user(current->sas_ss_size, &rt_sf->uc.uc_stack.ss_size)
            || __put_user(to_user_ptr(&rt_sf->uc.uc_mcontext),
                    &rt_sf->uc.uc_regs)
            || put_sigset_t(&rt_sf->uc.uc_sigmask, oldset))
@@ -1038,14 +805,11 @@ long sys_rt_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
         * change it.  -- paulus
         */
 #ifdef CONFIG_PPC64
-        /*
+        if (compat_restore_altstack(&rt_sf->uc.uc_stack))
-         * We use the compat_sys_ version that does the 32/64 bits conversion
+                goto bad;
-         * and takes userland pointer directly. What about error checking ?
-         * nobody does any...
-         */
-        compat_sys_sigaltstack((u32)(u64)&rt_sf->uc.uc_stack, 0, 0, 0, 0, 0, regs);
 #else
-        do_sigaltstack(&rt_sf->uc.uc_stack, NULL, regs->gpr[1]);
+        if (restore_altstack(&rt_sf->uc.uc_stack))
+                goto bad;
 #endif
        set_thread_flag(TIF_RESTOREALL);
        return 0;
@@ -1161,7 +925,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx,
         * always done it up until now so it is probably better not to
         * change it.  -- paulus
         */
-        do_sigaltstack(&ctx->uc_stack, NULL, regs->gpr[1]);
+        restore_altstack(&ctx->uc_stack);
        set_thread_flag(TIF_RESTOREALL);
 out:
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 1ca045d44324..807b5b1535e9 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -368,10 +368,8 @@ int sys_rt_sigreturn(unsigned long r3, unsigned long r4, unsigned long r5,
        if (restore_sigcontext(regs, NULL, 1, &uc->uc_mcontext))
                goto badframe;
-        /* do_sigaltstack expects a __user pointer and won't modify
+        if (restore_altstack(&uc->uc_stack))
-         * what's in there anyway
+                goto badframe;
-         */
-        do_sigaltstack(&uc->uc_stack, NULL, regs->gpr[1]);
        set_thread_flag(TIF_RESTOREALL);
        return 0;
@@ -416,10 +414,7 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
        /* Create the ucontext.  */
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(0, &frame->uc.uc_link);
-        err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
+        err |= __save_altstack(&frame->uc.uc_stack, regs->gpr[1]);
-        err |= __put_user(sas_ss_flags(regs->gpr[1]),
-                          &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
        err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, signr, NULL,
                                (unsigned long)ka->sa.sa_handler, 1);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index 8a93778ed9f5..dbc44ba5b078 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -61,16 +61,6 @@ asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp,
        return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x));
 }
-/* Note: it is necessary to treat option as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_sysfs(u32 option, u32 arg1, u32 arg2)
-{
-        return sys_sysfs((int)option, arg1, arg2);
-}
 #ifdef CONFIG_SYSVIPC
 long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr,
               u32 fifth)
@@ -156,125 +146,6 @@ asmlinkage long compat_sys_sendfile64_wrapper(u32 out_fd, u32 in_fd,
                            (off_t __user *)offset, count);
 }
-/* Note: it is necessary to treat option as an unsigned int, 
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
-{
-        return sys_prctl((int)option,
-                         (unsigned long) arg2,
-                         (unsigned long) arg3,
-                         (unsigned long) arg4,
-                         (unsigned long) arg5);
-}
-/* Note: it is necessary to treat pid as an unsigned int, 
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_sched_rr_get_interval_wrapper(u32 pid,
-                                                         struct compat_timespec __user *interval)
-{
-        return compat_sys_sched_rr_get_interval((int)pid, interval);
-}
-/* Note: it is necessary to treat mode as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_access(const char __user * filename, u32 mode)
-{
-        return sys_access(filename, (int)mode);
-}
-/* Note: it is necessary to treat mode as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_creat(const char __user * pathname, u32 mode)
-{
-        return sys_creat(pathname, (int)mode);
-}
-/* Note: it is necessary to treat pid and options as unsigned ints,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_waitpid(u32 pid, unsigned int __user * stat_addr, u32 options)
-{
-        return sys_waitpid((int)pid, stat_addr, (int)options);
-}
-/* Note: it is necessary to treat gidsetsize as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_getgroups(u32 gidsetsize, gid_t __user *grouplist)
-{
-        return sys_getgroups((int)gidsetsize, grouplist);
-}
-/* Note: it is necessary to treat pid as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_getpgid(u32 pid)
-{
-        return sys_getpgid((int)pid);
-}
-/* Note: it is necessary to treat pid as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_getsid(u32 pid)
-{
-        return sys_getsid((int)pid);
-}
-/* Note: it is necessary to treat pid and sig as unsigned ints,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_kill(u32 pid, u32 sig)
-{
-        return sys_kill((int)pid, (int)sig);
-}
-/* Note: it is necessary to treat mode as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_mkdir(const char __user * pathname, u32 mode)
-{
-        return sys_mkdir(pathname, (int)mode);
-}
-long compat_sys_nice(u32 increment)
-{
-        /* sign extend increment */
-        return sys_nice((int)increment);
-}
 off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin)
 {
        /* sign extend n */
@@ -293,172 +164,6 @@ long compat_sys_ftruncate(int fd, u32 length)
        return sys_ftruncate(fd, (int)length);
 }
-/* Note: it is necessary to treat bufsiz as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_readlink(const char __user * path, char __user * buf, u32 bufsiz)
-{
-        return sys_readlink(path, buf, (int)bufsiz);
-}
-/* Note: it is necessary to treat option as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_sched_get_priority_max(u32 policy)
-{
-        return sys_sched_get_priority_max((int)policy);
-}
-/* Note: it is necessary to treat policy as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_sched_get_priority_min(u32 policy)
-{
-        return sys_sched_get_priority_min((int)policy);
-}
-/* Note: it is necessary to treat pid as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_sched_getparam(u32 pid, struct sched_param __user *param)
-{
-        return sys_sched_getparam((int)pid, param);
-}
-/* Note: it is necessary to treat pid as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_sched_getscheduler(u32 pid)
-{
-        return sys_sched_getscheduler((int)pid);
-}
-/* Note: it is necessary to treat pid as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_sched_setparam(u32 pid, struct sched_param __user *param)
-{
-        return sys_sched_setparam((int)pid, param);
-}
-/* Note: it is necessary to treat pid and policy as unsigned ints,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_sched_setscheduler(u32 pid, u32 policy, struct sched_param __user *param)
-{
-        return sys_sched_setscheduler((int)pid, (int)policy, param);
-}
-/* Note: it is necessary to treat len as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_setdomainname(char __user *name, u32 len)
-{
-        return sys_setdomainname(name, (int)len);
-}
-/* Note: it is necessary to treat gidsetsize as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_setgroups(u32 gidsetsize, gid_t __user *grouplist)
-{
-        return sys_setgroups((int)gidsetsize, grouplist);
-}
-asmlinkage long compat_sys_sethostname(char __user *name, u32 len)
-{
-        /* sign extend len */
-        return sys_sethostname(name, (int)len);
-}
-/* Note: it is necessary to treat pid and pgid as unsigned ints,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_setpgid(u32 pid, u32 pgid)
-{
-        return sys_setpgid((int)pid, (int)pgid);
-}
-long compat_sys_getpriority(u32 which, u32 who)
-{
-        /* sign extend which and who */
-        return sys_getpriority((int)which, (int)who);
-}
-long compat_sys_setpriority(u32 which, u32 who, u32 niceval)
-{
-        /* sign extend which, who and niceval */
-        return sys_setpriority((int)which, (int)who, (int)niceval);
-}
-long compat_sys_ioprio_get(u32 which, u32 who)
-{
-        /* sign extend which and who */
-        return sys_ioprio_get((int)which, (int)who);
-}
-long compat_sys_ioprio_set(u32 which, u32 who, u32 ioprio)
-{
-        /* sign extend which, who and ioprio */
-        return sys_ioprio_set((int)which, (int)who, (int)ioprio);
-}
-/* Note: it is necessary to treat newmask as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_ssetmask(u32 newmask)
-{
-        return sys_ssetmask((int) newmask);
-}
-asmlinkage long compat_sys_syslog(u32 type, char __user * buf, u32 len)
-{
-        /* sign extend len */
-        return sys_syslog(type, buf, (int)len);
-}
-/* Note: it is necessary to treat mask as an unsigned int,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
- */
-asmlinkage long compat_sys_umask(u32 mask)
-{
-        return sys_umask((int)mask);
-}
 unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
                          unsigned long prot, unsigned long flags,
                          unsigned long fd, unsigned long pgoff)
@@ -467,12 +172,6 @@ unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
        return sys_mmap(addr, len, prot, flags, fd, pgoff << 12);
 }
-long compat_sys_tgkill(u32 tgid, u32 pid, int sig)
-{
-        /* sign extend tgid, pid */
-        return sys_tgkill((int)tgid, (int)pid, sig);
-}
 /* 
 * long long munging:
 * The 32 bit ABI passes long longs in an odd even register pair.
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index 3b1482e7afac..a125d7207bcc 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -14,6 +14,7 @@ config SCORE
       select HAVE_MOD_ARCH_SPECIFIC
        select MODULES_USE_ELF_REL
        select CLONE_BACKWARDS
+        select GENERIC_SIGALTSTACK
 choice
        prompt "System type"
diff --git a/arch/score/include/asm/syscalls.h b/arch/score/include/asm/syscalls.h
index acaeed680956..98d1df92fbd1 100644
--- a/arch/score/include/asm/syscalls.h
+++ b/arch/score/include/asm/syscalls.h
@@ -1,7 +1,6 @@
 #ifndef _ASM_SCORE_SYSCALLS_H
 #define _ASM_SCORE_SYSCALLS_H
-asmlinkage long score_sigaltstack(struct pt_regs *regs);
 asmlinkage long score_rt_sigreturn(struct pt_regs *regs);
 #include <asm-generic/syscalls.h>
diff --git a/arch/score/kernel/entry.S b/arch/score/kernel/entry.S
index 1557ca1a2951..7234ed09b7b7 100644
--- a/arch/score/kernel/entry.S
+++ b/arch/score/kernel/entry.S
@@ -491,8 +491,3 @@ ENTRY(sys_rt_sigreturn)
        mv      r4, r0
        la      r8, score_rt_sigreturn
        br      r8
-ENTRY(sys_sigaltstack)
-        mv      r4, r0
-        la      r8, score_sigaltstack
-        br      r8
diff --git a/arch/score/kernel/signal.c b/arch/score/kernel/signal.c
index 02353bde92d8..a00fba32b0eb 100644
--- a/arch/score/kernel/signal.c
+++ b/arch/score/kernel/signal.c
@@ -134,16 +134,6 @@ static void __user *get_sigframe(struct k_sigaction *ka,
 }
 asmlinkage long
-score_sigaltstack(struct pt_regs *regs)
-{
-        const stack_t __user *uss = (const stack_t __user *) regs->regs[4];
-        stack_t __user *uoss = (stack_t __user *) regs->regs[5];
-        unsigned long usp = regs->regs[0];
-        return do_sigaltstack(uss, uoss, usp);
-}
-asmlinkage long
 score_rt_sigreturn(struct pt_regs *regs)
 {
        struct rt_sigframe __user *frame;
@@ -167,9 +157,7 @@ score_rt_sigreturn(struct pt_regs *regs)
        else if (sig)
                force_sig(sig, current);
-        /* It is more difficult to avoid calling this function than to
+        if (restore_altstack(&frame->rs_uc.uc_stack))
-           call it and ignore errors.  */
-        if (do_sigaltstack(&frame->rs_uc.uc_stack, NULL, regs->regs[0]) == -EFAULT)
                goto badframe;
        regs->is_syscall = 0;
@@ -209,12 +197,7 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
        err |= copy_siginfo_to_user(&frame->rs_info, info);
        err |= __put_user(0, &frame->rs_uc.uc_flags);
        err |= __put_user(NULL, &frame->rs_uc.uc_link);
-        err |= __put_user((void __user *)current->sas_ss_sp,
+        err |= __save_altstack(&frame->rs_uc.uc_stack, regs->regs[0]);
-                                &frame->rs_uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->regs[0]),
-                                &frame->rs_uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size,
-                                &frame->rs_uc.uc_stack.ss_size);
        err |= setup_sigcontext(regs, &frame->rs_uc.uc_mcontext);
        err |= __copy_to_user(&frame->rs_uc.uc_sigmask, set, sizeof(*set));
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index babc2b826c5c..b5fd9f3c9925 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -40,6 +40,9 @@ config SUPERH
        select GENERIC_STRNLEN_USER
        select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER
        select MODULES_USE_ELF_RELA
+        select GENERIC_SIGALTSTACK
+        select OLD_SIGSUSPEND
+        select OLD_SIGACTION
        help
          The SuperH is a RISC processor targeted for use in embedded systems
          and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sh/include/asm/syscalls_32.h b/arch/sh/include/asm/syscalls_32.h
index cc25485996bb..4f97df87d7d5 100644
--- a/arch/sh/include/asm/syscalls_32.h
+++ b/arch/sh/include/asm/syscalls_32.h
@@ -9,12 +9,6 @@
 struct pt_regs;
-asmlinkage int sys_sigsuspend(old_sigset_t mask);
-asmlinkage int sys_sigaction(int sig, const struct old_sigaction __user *act,
-                             struct old_sigaction __user *oact);
-asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
-                               unsigned long r6, unsigned long r7,
-                               struct pt_regs __regs);
 asmlinkage int sys_sigreturn(unsigned long r4, unsigned long r5,
                             unsigned long r6, unsigned long r7,
                             struct pt_regs __regs);
diff --git a/arch/sh/include/uapi/asm/signal.h b/arch/sh/include/uapi/asm/signal.h
index 9ac530a90bce..cb96d02f55a4 100644
--- a/arch/sh/include/uapi/asm/signal.h
+++ b/arch/sh/include/uapi/asm/signal.h
@@ -5,11 +5,13 @@
 #include <asm-generic/signal.h>
+#ifndef __KERNEL__
 struct old_sigaction {
        __sighandler_t sa_handler;
        old_sigset_t sa_mask;
        unsigned long sa_flags;
        void (*sa_restorer)(void);
 };
+#endif
 #endif /* __ASM_SH_SIGNAL_H */
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
index 2f1f65356c0c..6af6e7c5cac8 100644
--- a/arch/sh/kernel/signal_32.c
+++ b/arch/sh/kernel/signal_32.c
@@ -47,60 +47,6 @@ struct fdpic_func_descriptor {
 #define UNWINDGUARD 64
 /*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage int
-sys_sigsuspend(old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
-asmlinkage int
-sys_sigaction(int sig, const struct old_sigaction __user *act,
-              struct old_sigaction __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        if (act) {
-                old_sigset_t mask;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
-}
-asmlinkage int
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
-                unsigned long r6, unsigned long r7,
-                struct pt_regs __regs)
-{
-        struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
-        return do_sigaltstack(uss, uoss, regs->regs[15]);
-}
-/*
 * Do a signal return; undo the signal stack.
 */
@@ -257,8 +203,7 @@ asmlinkage int sys_rt_sigreturn(unsigned long r4, unsigned long r5,
        if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0))
                goto badframe;
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL,
+        if (restore_altstack(&frame->uc.uc_stack))
-                           regs->regs[15]) == -EFAULT)
                goto badframe;
        return r0;
@@ -423,11 +368,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        /* Create the ucontext.  */
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(NULL, &frame->uc.uc_link);
-        err |= __put_user((void *)current->sas_ss_sp,
+        err |= __save_altstack(&frame->uc.uc_stack, regs->regs[15]);
-                          &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->regs[15]),
-                          &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
        err |= setup_sigcontext(&frame->uc.uc_mcontext,
                                regs, set->sig[0]);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c
index d867cd95a622..23d4c71c91af 100644
--- a/arch/sh/kernel/signal_64.c
+++ b/arch/sh/kernel/signal_64.c
@@ -128,58 +128,6 @@ static void do_signal(struct pt_regs *regs)
 }
 /*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage int
-sys_sigsuspend(old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
-asmlinkage int
-sys_sigaction(int sig, const struct old_sigaction __user *act,
-              struct old_sigaction __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        if (act) {
-                old_sigset_t mask;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
-}
-asmlinkage int
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
-                unsigned long r4, unsigned long r5, unsigned long r6,
-                unsigned long r7,
-                struct pt_regs * regs)
-{
-        return do_sigaltstack(uss, uoss, REF_REG_SP);
-}
-/*
 * Do a signal return; undo the signal stack.
 */
 struct sigframe {
@@ -364,9 +312,7 @@ asmlinkage int sys_rt_sigreturn(unsigned long r2, unsigned long r3,
                goto badframe;
        regs->pc -= 4;
-        /* It is more difficult to avoid calling this function than to
+        if (restore_altstack(&frame->uc.uc_stack))
-           call it and ignore errors.  */
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, REF_REG_SP) == -EFAULT)
                goto badframe;
        return (int) ret;
@@ -560,11 +506,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        /* Create the ucontext.  */
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(0, &frame->uc.uc_link);
-        err |= __put_user((void *)current->sas_ss_sp,
+        err |= __save_altstack(&frame->uc.uc_stack, regs->regs[REG_SP]);
-                          &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->regs[REG_SP]),
-                          &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
        err |= setup_sigcontext(&frame->uc.uc_mcontext,
                                regs, set->sig[0]);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 89dde2f0653a..e557b0821540 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -42,12 +42,19 @@ config SPARC
        select GENERIC_STRNLEN_USER
        select MODULES_USE_ELF_RELA
        select ODD_RT_SIGACTION
+        select GENERIC_SIGALTSTACK
+        select GENERIC_COMPAT_RT_SIGQUEUEINFO
+        select GENERIC_COMPAT_RT_SIGPROCMASK
+        select GENERIC_COMPAT_RT_SIGPENDING
+        select GENERIC_COMPAT_RT_SIGACTION
+        select OLD_SIGSUSPEND
 config SPARC32
        def_bool !64BIT
        select GENERIC_ATOMIC64
        select CLZ_TAB
        select HAVE_UID16
+        select OLD_SIGACTION
 config SPARC64
        def_bool 64BIT
@@ -544,6 +551,7 @@ config COMPAT
        select COMPAT_BINFMT_ELF
        select HAVE_UID16
        select ARCH_WANT_OLD_COMPAT_IPC
+        select COMPAT_OLD_SIGACTION
 config SYSVIPC_COMPAT
        bool
diff --git a/arch/sparc/include/asm/compat_signal.h b/arch/sparc/include/asm/compat_signal.h
index b759eab9b51c..9ed1f128b4d1 100644
--- a/arch/sparc/include/asm/compat_signal.h
+++ b/arch/sparc/include/asm/compat_signal.h
@@ -18,12 +18,6 @@ struct __old_sigaction32 {
        unsigned int            sa_flags;
        unsigned                sa_restorer;     /* not used by Linux/SPARC yet */
 };
-typedef struct sigaltstack32 {
-        u32                     ss_sp;
-        int                     ss_flags;
-        compat_size_t           ss_size;
-} stack_t32;
 #endif
 #endif /* !(_COMPAT_SIGNAL_H) */
diff --git a/arch/sparc/include/uapi/asm/signal.h b/arch/sparc/include/uapi/asm/signal.h
index 284836f0b7dc..f387400fcfdf 100644
--- a/arch/sparc/include/uapi/asm/signal.h
+++ b/arch/sparc/include/uapi/asm/signal.h
@@ -160,7 +160,6 @@ struct __new_sigaction {
        __sigrestore_t          sa_restorer;  /* not used by Linux/SPARC yet */
        __new_sigset_t          sa_mask;
 };
-#endif
 struct __old_sigaction {
        __sighandler_t          sa_handler;
@@ -168,6 +167,7 @@ struct __old_sigaction {
        unsigned long           sa_flags;
        void                    (*sa_restorer)(void);  /* not used by Linux/SPARC yet */
 };
+#endif
 typedef struct sigaltstack {
        void                    __user *ss_sp;
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index 21fd1a8f47d2..e2a030045089 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -820,14 +820,6 @@ sys_sparc_pipe:
         mov    %l5, %o7
        .align  4
-        .globl  sys_sigaltstack
-sys_sigaltstack:
-        mov     %o7, %l5
-        mov     %fp, %o2
-        call    do_sigaltstack
-         mov    %l5, %o7
-        .align  4
        .globl  sys_sigstack
 sys_sigstack:
        mov     %o7, %l5
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index 53e48f721ce3..9d9eb91d0de1 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -61,7 +61,7 @@ struct rt_signal_frame32 {
        compat_sigset_t         mask;
        /* __siginfo_fpu_t * */ u32 fpu_save;
        unsigned int            insns[2];
-        stack_t32               stack;
+        compat_stack_t          stack;
        unsigned int            extra_size; /* Should be sizeof(siginfo_extra_v8plus_t) */
        /* Only valid if (regs.psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS */
        siginfo_extra_v8plus_t  v8plus;
@@ -230,13 +230,11 @@ segv:
 asmlinkage void do_rt_sigreturn32(struct pt_regs *regs)
 {
        struct rt_signal_frame32 __user *sf;
-        unsigned int psr, pc, npc, u_ss_sp;
+        unsigned int psr, pc, npc;
        compat_uptr_t fpu_save;
        compat_uptr_t rwin_save;
-        mm_segment_t old_fs;
        sigset_t set;
        compat_sigset_t seta;
-        stack_t st;
        int err, i;
        
        /* Always make any pending restarted system calls return -EINTR */
@@ -295,20 +293,10 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs)
        if (!err && fpu_save)
                err |= restore_fpu_state(regs, compat_ptr(fpu_save));
        err |= copy_from_user(&seta, &sf->mask, sizeof(compat_sigset_t));
-        err |= __get_user(u_ss_sp, &sf->stack.ss_sp);
+        err |= compat_restore_altstack(&sf->stack);
-        st.ss_sp = compat_ptr(u_ss_sp);
-        err |= __get_user(st.ss_flags, &sf->stack.ss_flags);
-        err |= __get_user(st.ss_size, &sf->stack.ss_size);
        if (err)
                goto segv;
                
-        /* It is more difficult to avoid calling this function than to
-           call it and ignore errors.  */
-        old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        do_sigaltstack((stack_t __user *) &st, NULL, (unsigned long)sf);
-        set_fs(old_fs);
-        
        err |= __get_user(rwin_save, &sf->rwin_save);
        if (!err && rwin_save) {
                if (restore_rwin_state(compat_ptr(rwin_save)))
@@ -642,9 +630,7 @@ static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
        err |= copy_siginfo_to_user32(&sf->info, info);
        
        /* Setup sigaltstack */
-        err |= __put_user(current->sas_ss_sp, &sf->stack.ss_sp);
+        err |= __compat_save_altstack(&sf->stack, regs->u_regs[UREG_FP]);
-        err |= __put_user(sas_ss_flags(regs->u_regs[UREG_FP]), &sf->stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &sf->stack.ss_size);
        switch (_NSIG_WORDS) {
        case 4: seta.sig[7] = (oldset->sig[3] >> 32);
@@ -856,29 +842,3 @@ asmlinkage int do_sys32_sigstack(u32 u_ssptr, u32 u_ossptr, unsigned long sp)
 out:
        return ret;
 }
-asmlinkage long do_sys32_sigaltstack(u32 ussa, u32 uossa, unsigned long sp)
-{
-        stack_t uss, uoss;
-        u32 u_ss_sp = 0;
-        int ret;
-        mm_segment_t old_fs;
-        stack_t32 __user *uss32 = compat_ptr(ussa);
-        stack_t32 __user *uoss32 = compat_ptr(uossa);
-        
-        if (ussa && (get_user(u_ss_sp, &uss32->ss_sp) ||
-                    __get_user(uss.ss_flags, &uss32->ss_flags) ||
-                    __get_user(uss.ss_size, &uss32->ss_size)))
-                return -EFAULT;
-        uss.ss_sp = compat_ptr(u_ss_sp);
-        old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        ret = do_sigaltstack(ussa ? (stack_t __user *) &uss : NULL,
-                             uossa ? (stack_t __user *) &uoss : NULL, sp);
-        set_fs(old_fs);
-        if (!ret && uossa && (put_user(ptr_to_compat(uoss.ss_sp), &uoss32->ss_sp) ||
-                    __put_user(uoss.ss_flags, &uoss32->ss_flags) ||
-                    __put_user(uoss.ss_size, &uoss32->ss_size)))
-                return -EFAULT;
-        return ret;
-}
diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index 68f9c8650af4..cd1823487759 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -59,18 +59,6 @@ struct rt_signal_frame {
 #define SF_ALIGNEDSZ  (((sizeof(struct signal_frame) + 7) & (~7)))
 #define RT_ALIGNEDSZ  (((sizeof(struct rt_signal_frame) + 7) & (~7)))
-static int _sigpause_common(old_sigset_t set)
-{
-        sigset_t blocked;
-        siginitset(&blocked, set);
-        return sigsuspend(&blocked);
-}
-asmlinkage int sys_sigsuspend(old_sigset_t set)
-{
-        return _sigpause_common(set);
-}
 asmlinkage void do_sigreturn(struct pt_regs *regs)
 {
        struct signal_frame __user *sf;
@@ -141,9 +129,7 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs)
        unsigned int psr, pc, npc;
        __siginfo_fpu_t __user *fpu_save;
        __siginfo_rwin_t __user *rwin_save;
-        mm_segment_t old_fs;
        sigset_t set;
-        stack_t st;
        int err;
        synchronize_user_stack();
@@ -171,8 +157,7 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs)
        if (!err && fpu_save)
                err |= restore_fpu_state(regs, fpu_save);
        err |= __copy_from_user(&set, &sf->mask, sizeof(sigset_t));
-        
+        err |= restore_altstack(&sf->stack);
-        err |= __copy_from_user(&st, &sf->stack, sizeof(stack_t));
        
        if (err)
                goto segv;
@@ -180,14 +165,6 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs)
        regs->pc = pc;
        regs->npc = npc;
        
-        /* It is more difficult to avoid calling this function than to
-         * call it and ignore errors.
-         */
-        old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        do_sigaltstack((const stack_t __user *) &st, NULL, (unsigned long)sf);
-        set_fs(old_fs);
        err |= __get_user(rwin_save, &sf->rwin_save);
        if (!err && rwin_save) {
                if (restore_rwin_state(rwin_save))
@@ -391,9 +368,7 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
        err |= __copy_to_user(&sf->mask, &oldset->sig[0], sizeof(sigset_t));
        
        /* Setup sigaltstack */
-        err |= __put_user(current->sas_ss_sp, &sf->stack.ss_sp);
+        err |= __save_altstack(&sf->stack, regs->u_regs[UREG_FP]);
-        err |= __put_user(sas_ss_flags(regs->u_regs[UREG_FP]), &sf->stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &sf->stack.ss_size);
        
        if (!wsaved) {
                err |= __copy_to_user(sf, (char *) regs->u_regs[UREG_FP],
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index 689e1ba62809..165a897a4133 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -236,23 +236,6 @@ struct rt_signal_frame {
        __siginfo_rwin_t        *rwin_save;
 };
-static long _sigpause_common(old_sigset_t set)
-{
-        sigset_t blocked;
-        siginitset(&blocked, set);
-        return sigsuspend(&blocked);
-}
-asmlinkage long sys_sigpause(unsigned int set)
-{
-        return _sigpause_common(set);
-}
-asmlinkage long sys_sigsuspend(old_sigset_t set)
-{
-        return _sigpause_common(set);
-}
 void do_rt_sigreturn(struct pt_regs *regs)
 {
        struct rt_signal_frame __user *sf;
@@ -295,7 +278,8 @@ void do_rt_sigreturn(struct pt_regs *regs)
                err |= restore_fpu_state(regs, fpu_save);
        err |= __copy_from_user(&set, &sf->mask, sizeof(sigset_t));
-        if (err || do_sigaltstack(&sf->stack, NULL, (unsigned long)sf) == -EFAULT)
+        err |= restore_altstack(&sf->stack);
+        if (err)
                goto segv;
        err |= __get_user(rwin_save, &sf->rwin_save);
@@ -403,9 +387,7 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
        }
        
        /* Setup sigaltstack */
-        err |= __put_user(current->sas_ss_sp, &sf->stack.ss_sp);
+        err |= __save_altstack(&sf->stack, regs->u_regs[UREG_FP]);
-        err |= __put_user(sas_ss_flags(regs->u_regs[UREG_FP]), &sf->stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &sf->stack.ss_size);
        err |= copy_to_user(&sf->mask, oldset, sizeof(sigset_t));
diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S
index 8475a474273a..240a3cecc11e 100644
--- a/arch/sparc/kernel/sys32.S
+++ b/arch/sparc/kernel/sys32.S
@@ -36,108 +36,22 @@ STUB:	sra	REG1, 0, REG1; \
        jmpl    %g1 + %lo(SYSCALL), %g0; \
        sra     REG3, 0, REG3
-#define SIGN4(STUB,SYSCALL,REG1,REG2,REG3,REG4) \
-        .align  32; \
-        .globl  STUB; \
-STUB:   sra     REG1, 0, REG1; \
-        sethi   %hi(SYSCALL), %g1; \
-        sra     REG2, 0, REG2; \
-        sra     REG3, 0, REG3; \
-        jmpl    %g1 + %lo(SYSCALL), %g0; \
-        sra     REG4, 0, REG4
-SIGN1(sys32_exit, sparc_exit, %o0)
-SIGN1(sys32_exit_group, sparc_exit_group, %o0)
-SIGN1(sys32_wait4, compat_sys_wait4, %o2)
-SIGN1(sys32_creat, sys_creat, %o1)
-SIGN1(sys32_mknod, sys_mknod, %o1)
-SIGN1(sys32_umount, sys_umount, %o1)
-SIGN1(sys32_signal, sys_signal, %o0)
-SIGN1(sys32_access, sys_access, %o1)
-SIGN1(sys32_msync, sys_msync, %o2)
-SIGN2(sys32_reboot, sys_reboot, %o0, %o1)
-SIGN1(sys32_setitimer, compat_sys_setitimer, %o0)
-SIGN1(sys32_getitimer, compat_sys_getitimer, %o0)
-SIGN1(sys32_sethostname, sys_sethostname, %o1)
-SIGN1(sys32_swapon, sys_swapon, %o1)
-SIGN1(sys32_sigaction, compat_sys_sigaction, %o0)
-SIGN1(sys32_rt_sigaction, compat_sys_rt_sigaction, %o0)
-SIGN1(sys32_sigprocmask, compat_sys_sigprocmask, %o0)
-SIGN1(sys32_rt_sigprocmask, compat_sys_rt_sigprocmask, %o0)
-SIGN2(sys32_rt_sigqueueinfo, compat_sys_rt_sigqueueinfo, %o0, %o1)
 SIGN1(sys32_getrusage, compat_sys_getrusage, %o0)
-SIGN1(sys32_setxattr, sys_setxattr, %o4)
-SIGN1(sys32_lsetxattr, sys_lsetxattr, %o4)
-SIGN1(sys32_fsetxattr, sys_fsetxattr, %o4)
-SIGN1(sys32_fgetxattr, sys_fgetxattr, %o0)
-SIGN1(sys32_flistxattr, sys_flistxattr, %o0)
-SIGN1(sys32_fremovexattr, sys_fremovexattr, %o0)
-SIGN2(sys32_tkill, sys_tkill, %o0, %o1)
-SIGN1(sys32_epoll_create, sys_epoll_create, %o0)
-SIGN3(sys32_epoll_ctl, sys_epoll_ctl, %o0, %o1, %o2)
-SIGN3(sys32_epoll_wait, sys_epoll_wait, %o0, %o2, %o3)
 SIGN1(sys32_readahead, compat_sys_readahead, %o0)
 SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4)
 SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)
-SIGN2(sys32_bdflush, sys_bdflush, %o0, %o1)
-SIGN1(sys32_mlockall, sys_mlockall, %o0)
 SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1)
 SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1)
 SIGN1(sys32_io_submit, compat_sys_io_submit, %o1)
 SIGN1(sys32_mq_open, compat_sys_mq_open, %o1)
 SIGN1(sys32_select, compat_sys_select, %o0)
-SIGN1(sys32_mkdir, sys_mkdir, %o1)
 SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5)
-SIGN1(sys32_sysfs, compat_sys_sysfs, %o0)
 SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1)
-SIGN2(sys32_sendfile64, sys_sendfile, %o0, %o1)
-SIGN1(sys32_prctl, sys_prctl, %o0)
-SIGN1(sys32_sched_rr_get_interval, compat_sys_sched_rr_get_interval, %o0)
-SIGN2(sys32_waitpid, sys_waitpid, %o0, %o2)
-SIGN1(sys32_getgroups, sys_getgroups, %o0)
-SIGN1(sys32_getpgid, sys_getpgid, %o0)
-SIGN2(sys32_getpriority, sys_getpriority, %o0, %o1)
-SIGN1(sys32_getsid, sys_getsid, %o0)
-SIGN2(sys32_kill, sys_kill, %o0, %o1)
-SIGN1(sys32_nice, sys_nice, %o0)
-SIGN1(sys32_lseek, sys_lseek, %o1)
-SIGN2(sys32_open, sparc32_open, %o1, %o2)
-SIGN1(sys32_readlink, sys_readlink, %o2)
-SIGN1(sys32_sched_get_priority_max, sys_sched_get_priority_max, %o0)
-SIGN1(sys32_sched_get_priority_min, sys_sched_get_priority_min, %o0)
-SIGN1(sys32_sched_getparam, sys_sched_getparam, %o0)
-SIGN1(sys32_sched_getscheduler, sys_sched_getscheduler, %o0)
-SIGN1(sys32_sched_setparam, sys_sched_setparam, %o0)
-SIGN2(sys32_sched_setscheduler, sys_sched_setscheduler, %o0, %o1)
-SIGN1(sys32_getdomainname, sys_getdomainname, %o1)
-SIGN1(sys32_setdomainname, sys_setdomainname, %o1)
-SIGN1(sys32_setgroups, sys_setgroups, %o0)
-SIGN2(sys32_setpgid, sys_setpgid, %o0, %o1)
-SIGN3(sys32_setpriority, sys_setpriority, %o0, %o1, %o2)
-SIGN1(sys32_ssetmask, sys_ssetmask, %o0)
-SIGN2(sys32_syslog, sys_syslog, %o0, %o2)
-SIGN1(sys32_umask, sys_umask, %o0)
-SIGN3(sys32_tgkill, sys_tgkill, %o0, %o1, %o2)
-SIGN1(sys32_sendto, sys_sendto, %o0)
 SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0)
-SIGN3(sys32_socket, sys_socket, %o0, %o1, %o2)
-SIGN2(sys32_connect, sys_connect, %o0, %o2)
-SIGN2(sys32_bind, sys_bind, %o0, %o2)
-SIGN2(sys32_listen, sys_listen, %o0, %o1)
 SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0)
 SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0)
-SIGN2(sys32_shutdown, sys_shutdown, %o0, %o1)
-SIGN3(sys32_socketpair, sys_socketpair, %o0, %o1, %o2)
-SIGN1(sys32_getpeername, sys_getpeername, %o0)
-SIGN1(sys32_getsockname, sys_getsockname, %o0)
-SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1)
-SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2)
-SIGN2(sys32_splice, sys_splice, %o0, %o2)
 SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5)
-SIGN2(sys32_tee, sys_tee, %o0, %o1)
 SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0)
-SIGN1(sys32_truncate, sys_truncate, %o1)
-SIGN1(sys32_ftruncate, sys_ftruncate, %o1)
        .globl          sys32_mmap2
 sys32_mmap2:
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index 4a4cdc633f6b..f38f2280fade 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -206,133 +206,19 @@ asmlinkage long compat_sys_fstatat64(unsigned int dfd,
        return cp_compat_stat64(&stat, statbuf);
 }
-asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
+COMPAT_SYSCALL_DEFINE3(sparc_sigaction, int, sig,
+                        struct compat_old_sigaction __user *,act,
+                        struct compat_old_sigaction __user *,oact)
 {
-        return sys_sysfs(option, arg1, arg2);
-}
-asmlinkage long compat_sys_rt_sigprocmask(int how,
-                                          compat_sigset_t __user *set,
-                                          compat_sigset_t __user *oset,
-                                          compat_size_t sigsetsize)
-{
-        sigset_t s;
-        compat_sigset_t s32;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        
-        if (set) {
-                if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
-                        return -EFAULT;
-                switch (_NSIG_WORDS) {
-                case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
-                case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
-                case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
-                case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
-                }
-        }
-        set_fs (KERNEL_DS);
-        ret = sys_rt_sigprocmask(how,
-                                 set ? (sigset_t __user *) &s : NULL,
-                                 oset ? (sigset_t __user *) &s : NULL,
-                                 sigsetsize);
-        set_fs (old_fs);
-        if (ret) return ret;
-        if (oset) {
-                switch (_NSIG_WORDS) {
-                case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
-                case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
-                case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
-                case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
-                }
-                if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
-                        return -EFAULT;
-        }
-        return 0;
-}
-asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
-                                    compat_size_t sigsetsize)
-{
-        sigset_t s;
-        compat_sigset_t s32;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-                
-        set_fs (KERNEL_DS);
-        ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
-        set_fs (old_fs);
-        if (!ret) {
-                switch (_NSIG_WORDS) {
-                case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
-                case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
-                case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
-                case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
-                }
-                if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
-                        return -EFAULT;
-        }
-        return ret;
-}
-asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
-                                           struct compat_siginfo __user *uinfo)
-{
-        siginfo_t info;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        
-        if (copy_siginfo_from_user32(&info, uinfo))
-                return -EFAULT;
-        set_fs (KERNEL_DS);
-        ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
-        set_fs (old_fs);
-        return ret;
-}
-asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act,
-                                     struct old_sigaction32 __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
        WARN_ON_ONCE(sig >= 0);
-        sig = -sig;
+        return compat_sys_sigaction(-sig, act, oact);
-        if (act) {
-                compat_old_sigset_t mask;
-                u32 u_handler, u_restorer;
-                
-                ret = get_user(u_handler, &act->sa_handler);
-                new_ka.sa.sa_handler =  compat_ptr(u_handler);
-                ret |= __get_user(u_restorer, &act->sa_restorer);
-                new_ka.sa.sa_restorer = compat_ptr(u_restorer);
-                ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
-                ret |= __get_user(mask, &act->sa_mask);
-                if (ret)
-                        return ret;
-                new_ka.ka_restorer = NULL;
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
-                ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
-                ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-                ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
-        }
-        return ret;
 }
-asmlinkage long compat_sys_rt_sigaction(int sig,
+COMPAT_SYSCALL_DEFINE5(rt_sigaction, int, sig,
-                                        struct sigaction32 __user *act,
+                        struct compat_sigaction __user *,act,
-                                        struct sigaction32 __user *oact,
+                        struct compat_sigaction __user *,oact,
-                                        void __user *restorer,
+                        void __user *,restorer,
-                                        compat_size_t sigsetsize)
+                        compat_size_t,sigsetsize)
 {
        struct k_sigaction new_ka, old_ka;
        int ret;
@@ -349,12 +235,7 @@ asmlinkage long compat_sys_rt_sigaction(int sig,
                ret = get_user(u_handler, &act->sa_handler);
                new_ka.sa.sa_handler =  compat_ptr(u_handler);
                ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
-                switch (_NSIG_WORDS) {
+                sigset_from_compat(&new_ka.sa.sa_mask, &set32);
-                case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
-                case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32);
-                case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32);
-                case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32);
-                }
                ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
                ret |= __get_user(u_restorer, &act->sa_restorer);
                new_ka.sa.sa_restorer = compat_ptr(u_restorer);
@@ -365,12 +246,7 @@ asmlinkage long compat_sys_rt_sigaction(int sig,
        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
        if (!ret && oact) {
-                switch (_NSIG_WORDS) {
+                sigset_to_compat(&set32, &old_ka.sa.sa_mask);
-                case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3];
-                case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2];
-                case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
-                case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
-                }
                ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
                ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
                ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
@@ -382,35 +258,6 @@ asmlinkage long compat_sys_rt_sigaction(int sig,
        return ret;
 }
-#ifdef CONFIG_MODULES
-asmlinkage long sys32_init_module(void __user *umod, u32 len,
-                                  const char __user *uargs)
-{
-        return sys_init_module(umod, len, uargs);
-}
-asmlinkage long sys32_delete_module(const char __user *name_user,
-                                    unsigned int flags)
-{
-        return sys_delete_module(name_user, flags);
-}
-#else /* CONFIG_MODULES */
-asmlinkage long sys32_init_module(const char __user *name_user,
-                                  struct module __user *mod_user)
-{
-        return -ENOSYS;
-}
-asmlinkage long sys32_delete_module(const char __user *name_user)
-{
-        return -ENOSYS;
-}
-#endif  /* CONFIG_MODULES */
 asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
                                        char __user *ubuf,
                                        compat_size_t count,
@@ -456,16 +303,6 @@ long compat_sys_fadvise64_64(int fd,
                                advice);
 }
-/* This is just a version for 32-bit applications which does
- * not force O_LARGEFILE on.
- */
-asmlinkage long sparc32_open(const char __user *filename,
-                             int flags, int mode)
-{
-        return do_sys_open(AT_FDCWD, filename, flags, mode);
-}
 long sys32_lookup_dcookie(unsigned long cookie_high,
                          unsigned long cookie_low,
                          char __user *buf, size_t len)
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index cdd2d7035930..3a8d1844402e 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -160,41 +160,12 @@ sparc_breakpoint (struct pt_regs *regs)
 #endif
 }
-asmlinkage int
+SYSCALL_DEFINE3(sparc_sigaction, int, sig,
-sparc_sigaction (int sig, const struct old_sigaction __user *act,
+                struct old_sigaction __user *,act,
-                 struct old_sigaction __user *oact)
+                struct old_sigaction __user *,oact)
 {
-        struct k_sigaction new_ka, old_ka;
-        int ret;
        WARN_ON_ONCE(sig >= 0);
-        sig = -sig;
+        return sys_sigaction(-sig, act, oact);
-        if (act) {
-                unsigned long mask;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                siginitset(&new_ka.sa.sa_mask, mask);
-                new_ka.ka_restorer = NULL;
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
 }
 SYSCALL_DEFINE5(rt_sigaction, int, sig,
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
index e0fed7711a94..22a1098961f5 100644
--- a/arch/sparc/kernel/syscalls.S
+++ b/arch/sparc/kernel/syscalls.S
@@ -25,16 +25,10 @@ sys_nis_syscall:
 sys_memory_ordering:
        ba,pt   %xcc, sparc_memory_ordering
         add    %sp, PTREGS_OFF, %o1
-sys_sigaltstack:
-        ba,pt   %xcc, do_sigaltstack
-         add    %i6, STACK_BIAS, %o2
 #ifdef CONFIG_COMPAT
 sys32_sigstack:
        ba,pt   %xcc, do_sys32_sigstack
         mov    %i6, %o2
-sys32_sigaltstack:
-        ba,pt   %xcc, do_sys32_sigaltstack
-         mov    %i6, %o2
 #endif
        .align  32
 #ifdef CONFIG_COMPAT
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 1dd89dbac8d8..26e6dd72e92a 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -36,8 +36,6 @@ extern asmlinkage long sys_rt_sigaction(int sig,
 extern asmlinkage void sparc64_set_context(struct pt_regs *regs);
 extern asmlinkage void sparc64_get_context(struct pt_regs *regs);
-extern asmlinkage long sys_sigpause(unsigned int set);
-extern asmlinkage long sys_sigsuspend(old_sigset_t set);
 extern void do_rt_sigreturn(struct pt_regs *regs);
 #endif /* _SYSTBLS_H */
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index 6ac43c36bbbf..7b87171ecf1e 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -55,7 +55,7 @@ sys_call_table:
 /*180*/ .long sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_sigpending, sys_ni_syscall
 /*185*/ .long sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_newuname
 /*190*/ .long sys_init_module, sys_personality, sparc_remap_file_pages, sys_epoll_create, sys_epoll_ctl
-/*195*/ .long sys_epoll_wait, sys_ioprio_set, sys_getppid, sparc_sigaction, sys_sgetmask
+/*195*/ .long sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_sparc_sigaction, sys_sgetmask
 /*200*/ .long sys_ssetmask, sys_sigsuspend, sys_newlstat, sys_uselib, sys_old_readdir
 /*205*/ .long sys_readahead, sys_socketcall, sys_syslog, sys_lookup_dcookie, sys_fadvise64
 /*210*/ .long sys_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, sys_sysinfo
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 1009ecb92678..260ddcd412bf 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -18,63 +18,63 @@
        .globl sys_call_table32
 sys_call_table32:
-/*0*/   .word sys_restart_syscall, sys32_exit, sys_fork, sys_read, sys_write
+/*0*/   .word sys_restart_syscall, sparc_exit, sys_fork, sys_read, sys_write
-/*5*/   .word sys32_open, sys_close, sys32_wait4, sys32_creat, sys_link
+/*5*/   .word compat_sys_open, sys_close, compat_sys_wait4, sys_creat, sys_link
-/*10*/  .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys32_mknod
+/*10*/  .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys_mknod
-/*15*/  .word sys_chmod, sys_lchown16, sys_brk, sys_nis_syscall, sys32_lseek
+/*15*/  .word sys_chmod, sys_lchown16, sys_brk, sys_nis_syscall, sys_lseek
 /*20*/  .word sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16
-/*25*/  .word sys32_vmsplice, compat_sys_ptrace, sys_alarm, sys32_sigaltstack, sys_pause
+/*25*/  .word sys32_vmsplice, compat_sys_ptrace, sys_alarm, compat_sys_sigaltstack, sys_pause
-/*30*/  .word compat_sys_utime, sys_lchown, sys_fchown, sys32_access, sys32_nice
+/*30*/  .word compat_sys_utime, sys_lchown, sys_fchown, sys_access, sys_nice
-        .word sys_chown, sys_sync, sys32_kill, compat_sys_newstat, sys32_sendfile
+        .word sys_chown, sys_sync, sys_kill, compat_sys_newstat, sys32_sendfile
 /*40*/  .word compat_sys_newlstat, sys_dup, sys_sparc_pipe, compat_sys_times, sys_getuid
-        .word sys32_umount, sys_setgid16, sys_getgid16, sys32_signal, sys_geteuid16
+        .word sys_umount, sys_setgid16, sys_getgid16, sys_signal, sys_geteuid16
 /*50*/  .word sys_getegid16, sys_acct, sys_nis_syscall, sys_getgid, compat_sys_ioctl
-        .word sys32_reboot, sys32_mmap2, sys_symlink, sys32_readlink, sys32_execve
+        .word sys_reboot, sys32_mmap2, sys_symlink, sys_readlink, sys32_execve
-/*60*/  .word sys32_umask, sys_chroot, compat_sys_newfstat, compat_sys_fstat64, sys_getpagesize
+/*60*/  .word sys_umask, sys_chroot, compat_sys_newfstat, compat_sys_fstat64, sys_getpagesize
-        .word sys32_msync, sys_vfork, sys32_pread64, sys32_pwrite64, sys_geteuid
+        .word sys_msync, sys_vfork, sys32_pread64, sys32_pwrite64, sys_geteuid
 /*70*/  .word sys_getegid, sys_mmap, sys_setreuid, sys_munmap, sys_mprotect
        .word sys_madvise, sys_vhangup, sys32_truncate64, sys_mincore, sys_getgroups16
-/*80*/  .word sys_setgroups16, sys_getpgrp, sys32_setgroups, sys32_setitimer, sys32_ftruncate64
+/*80*/  .word sys_setgroups16, sys_getpgrp, sys_setgroups, compat_sys_setitimer, sys32_ftruncate64
-        .word sys32_swapon, sys32_getitimer, sys_setuid, sys32_sethostname, sys_setgid
+        .word sys_swapon, compat_sys_getitimer, sys_setuid, sys_sethostname, sys_setgid
 /*90*/  .word sys_dup2, sys_setfsuid, compat_sys_fcntl, sys32_select, sys_setfsgid
-        .word sys_fsync, sys32_setpriority, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall
+        .word sys_fsync, sys_setpriority, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall
-/*100*/ .word sys32_getpriority, sys32_rt_sigreturn, sys32_rt_sigaction, sys32_rt_sigprocmask, sys32_rt_sigpending
+/*100*/ .word sys_getpriority, sys32_rt_sigreturn, compat_sys_rt_sigaction, compat_sys_rt_sigprocmask, compat_sys_rt_sigpending
-        .word compat_sys_rt_sigtimedwait, sys32_rt_sigqueueinfo, compat_sys_rt_sigsuspend, sys_setresuid, sys_getresuid
+        .word compat_sys_rt_sigtimedwait, compat_sys_rt_sigqueueinfo, compat_sys_rt_sigsuspend, sys_setresuid, sys_getresuid
 /*110*/ .word sys_setresgid, sys_getresgid, sys_setregid, sys_nis_syscall, sys_nis_syscall
-        .word sys32_getgroups, compat_sys_gettimeofday, sys32_getrusage, sys_nis_syscall, sys_getcwd
+        .word sys_getgroups, compat_sys_gettimeofday, sys32_getrusage, sys_nis_syscall, sys_getcwd
 /*120*/ .word compat_sys_readv, compat_sys_writev, compat_sys_settimeofday, sys_fchown16, sys_fchmod
-        .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys32_truncate
+        .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys_truncate
-/*130*/ .word sys32_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall
+/*130*/ .word sys_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall
-        .word sys_nis_syscall, sys32_mkdir, sys_rmdir, compat_sys_utimes, compat_sys_stat64
+        .word sys_nis_syscall, sys_mkdir, sys_rmdir, compat_sys_utimes, compat_sys_stat64
-/*140*/ .word sys32_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit
+/*140*/ .word sys_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit
-        .word compat_sys_setrlimit, sys_pivot_root, sys32_prctl, sys_pciconfig_read, sys_pciconfig_write
+        .word compat_sys_setrlimit, sys_pivot_root, sys_prctl, sys_pciconfig_read, sys_pciconfig_write
 /*150*/ .word sys_nis_syscall, sys_inotify_init, sys_inotify_add_watch, sys_poll, sys_getdents64
        .word compat_sys_fcntl64, sys_inotify_rm_watch, compat_sys_statfs, compat_sys_fstatfs, sys_oldumount
-/*160*/ .word compat_sys_sched_setaffinity, compat_sys_sched_getaffinity, sys32_getdomainname, sys32_setdomainname, sys_nis_syscall
+/*160*/ .word compat_sys_sched_setaffinity, compat_sys_sched_getaffinity, sys_getdomainname, sys_setdomainname, sys_nis_syscall
-        .word sys_quotactl, sys_set_tid_address, compat_sys_mount, compat_sys_ustat, sys32_setxattr
+        .word sys_quotactl, sys_set_tid_address, compat_sys_mount, compat_sys_ustat, sys_setxattr
-/*170*/ .word sys32_lsetxattr, sys32_fsetxattr, sys_getxattr, sys_lgetxattr, compat_sys_getdents
+/*170*/ .word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, compat_sys_getdents
-        .word sys_setsid, sys_fchdir, sys32_fgetxattr, sys_listxattr, sys_llistxattr
+        .word sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr
-/*180*/ .word sys32_flistxattr, sys_removexattr, sys_lremovexattr, compat_sys_sigpending, sys_ni_syscall
+/*180*/ .word sys_flistxattr, sys_removexattr, sys_lremovexattr, compat_sys_sigpending, sys_ni_syscall
-        .word sys32_setpgid, sys32_fremovexattr, sys32_tkill, sys32_exit_group, sys_newuname
+        .word sys_setpgid, sys_fremovexattr, sys_tkill, sparc_exit_group, sys_newuname
-/*190*/ .word sys32_init_module, sys_sparc64_personality, sys_remap_file_pages, sys32_epoll_create, sys32_epoll_ctl
+/*190*/ .word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl
-        .word sys32_epoll_wait, sys32_ioprio_set, sys_getppid, sys32_sigaction, sys_sgetmask
+        .word sys_epoll_wait, sys_ioprio_set, sys_getppid, compat_sys_sparc_sigaction, sys_sgetmask
-/*200*/ .word sys32_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir
+/*200*/ .word sys_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir
-        .word sys32_readahead, sys32_socketcall, sys32_syslog, sys32_lookup_dcookie, sys32_fadvise64
+        .word sys32_readahead, sys32_socketcall, sys_syslog, sys32_lookup_dcookie, sys32_fadvise64
-/*210*/ .word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, compat_sys_sysinfo
+/*210*/ .word sys32_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, compat_sys_sysinfo
-        .word compat_sys_ipc, sys32_sigreturn, sys_clone, sys32_ioprio_get, compat_sys_adjtimex
+        .word compat_sys_ipc, sys32_sigreturn, sys_clone, sys_ioprio_get, compat_sys_adjtimex
-/*220*/ .word sys32_sigprocmask, sys_ni_syscall, sys32_delete_module, sys_ni_syscall, sys32_getpgid
+/*220*/ .word compat_sys_sigprocmask, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid
-        .word sys32_bdflush, sys32_sysfs, sys_nis_syscall, sys_setfsuid16, sys_setfsgid16
+        .word sys_bdflush, sys_sysfs, sys_nis_syscall, sys_setfsuid16, sys_setfsgid16
-/*230*/ .word sys32_select, compat_sys_time, sys32_splice, compat_sys_stime, compat_sys_statfs64
+/*230*/ .word sys32_select, compat_sys_time, sys_splice, compat_sys_stime, compat_sys_statfs64
-        .word compat_sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys32_mlockall
+        .word compat_sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys_mlockall
-/*240*/ .word sys_munlockall, sys32_sched_setparam, sys32_sched_getparam, sys32_sched_setscheduler, sys32_sched_getscheduler
+/*240*/ .word sys_munlockall, sys_sched_setparam, sys_sched_getparam, sys_sched_setscheduler, sys_sched_getscheduler
-        .word sys_sched_yield, sys32_sched_get_priority_max, sys32_sched_get_priority_min, sys32_sched_rr_get_interval, compat_sys_nanosleep
+        .word sys_sched_yield, sys_sched_get_priority_max, sys_sched_get_priority_min, compat_sys_sched_rr_get_interval, compat_sys_nanosleep
-/*250*/ .word sys_mremap, compat_sys_sysctl, sys32_getsid, sys_fdatasync, sys_nis_syscall
+/*250*/ .word sys_mremap, compat_sys_sysctl, sys_getsid, sys_fdatasync, sys_nis_syscall
        .word sys32_sync_file_range, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep
 /*260*/ .word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun
        .word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
 /*270*/ .word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink
        .word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid
-/*280*/ .word sys32_tee, sys_add_key, sys_request_key, compat_sys_keyctl, compat_sys_openat
+/*280*/ .word sys_tee, sys_add_key, sys_request_key, compat_sys_keyctl, compat_sys_openat
        .word sys_mkdirat, sys_mknodat, sys_fchownat, compat_sys_futimesat, compat_sys_fstatat64
 /*290*/ .word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
        .word sys_fchmodat, sys_faccessat, compat_sys_pselect6, compat_sys_ppoll, sys_unshare
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 875d008828b8..96a717ebb1fa 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -21,6 +21,11 @@ config TILE
        select ARCH_HAVE_NMI_SAFE_CMPXCHG
        select GENERIC_CLOCKEVENTS
        select MODULES_USE_ELF_RELA
+        select GENERIC_SIGALTSTACK
+        select GENERIC_COMPAT_RT_SIGACTION
+        select GENERIC_COMPAT_RT_SIGQUEUEINFO
+        select GENERIC_COMPAT_RT_SIGPROCMASK
+        select GENERIC_COMPAT_RT_SIGPENDING
 # FIXME: investigate whether we need/want these options.
 #       select HAVE_IOREMAP_PROT
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index 88f3c227afd9..001d418a8957 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -272,17 +272,9 @@ extern int compat_setup_rt_frame(int sig, struct k_sigaction *ka,
                                 struct pt_regs *regs);
 /* Compat syscalls. */
-struct compat_sigaction;
 struct compat_siginfo;
 struct compat_sigaltstack;
-long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act,
-                             struct compat_sigaction __user *oact,
-                             size_t sigsetsize);
-long compat_sys_rt_sigqueueinfo(int pid, int sig,
-                                struct compat_siginfo __user *uinfo);
 long compat_sys_rt_sigreturn(void);
-long compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
-                            struct compat_sigaltstack __user *uoss_ptr);
 long compat_sys_truncate64(char __user *filename, u32 dummy, u32 low, u32 high);
 long compat_sys_ftruncate64(unsigned int fd, u32 dummy, u32 low, u32 high);
 long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count,
diff --git a/arch/tile/include/asm/syscalls.h b/arch/tile/include/asm/syscalls.h
index 4c8462a62cb6..78886e2417a6 100644
--- a/arch/tile/include/asm/syscalls.h
+++ b/arch/tile/include/asm/syscalls.h
@@ -64,9 +64,7 @@ long sys_ftruncate64(unsigned int fd, loff_t length);
 /* Provide versions of standard syscalls that use current_pt_regs(). */
 long sys_rt_sigreturn(void);
-long sys_sigaltstack(const stack_t __user *, stack_t __user *);
 #define sys_rt_sigreturn sys_rt_sigreturn
-#define sys_sigaltstack sys_sigaltstack
 /* These are the intvec*.S trampolines. */
 long _sys_rt_sigreturn(void);
diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c
index 2e4cc69224a6..d0a052e725be 100644
--- a/arch/tile/kernel/compat_signal.c
+++ b/arch/tile/kernel/compat_signal.c
@@ -34,19 +34,6 @@
 #include <asm/syscalls.h>
 #include <arch/interrupts.h>
-struct compat_sigaction {
-        compat_uptr_t sa_handler;
-        compat_ulong_t sa_flags;
-        compat_uptr_t sa_restorer;
-        sigset_t sa_mask __packed;
-};
-struct compat_sigaltstack {
-        compat_uptr_t ss_sp;
-        int ss_flags;
-        compat_size_t ss_size;
-};
 struct compat_ucontext {
        compat_ulong_t    uc_flags;
        compat_uptr_t     uc_link;
@@ -61,63 +48,6 @@ struct compat_rt_sigframe {
        struct compat_ucontext uc;
 };
-long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act,
-                             struct compat_sigaction __user *oact,
-                             size_t sigsetsize)
-{
-        struct k_sigaction new_sa, old_sa;
-        int ret = -EINVAL;
-        /* XXX: Don't preclude handling different sized sigset_t's.  */
-        if (sigsetsize != sizeof(sigset_t))
-                goto out;
-        if (act) {
-                compat_uptr_t handler, restorer;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(handler, &act->sa_handler) ||
-                    __get_user(new_sa.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(restorer, &act->sa_restorer) ||
-                    __copy_from_user(&new_sa.sa.sa_mask, &act->sa_mask,
-                                     sizeof(sigset_t)))
-                        return -EFAULT;
-                new_sa.sa.sa_handler = compat_ptr(handler);
-                new_sa.sa.sa_restorer = compat_ptr(restorer);
-        }
-        ret = do_sigaction(sig, act ? &new_sa : NULL, oact ? &old_sa : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(ptr_to_compat(old_sa.sa.sa_handler),
-                               &oact->sa_handler) ||
-                    __put_user(ptr_to_compat(old_sa.sa.sa_restorer),
-                               &oact->sa_restorer) ||
-                    __put_user(old_sa.sa.sa_flags, &oact->sa_flags) ||
-                    __copy_to_user(&oact->sa_mask, &old_sa.sa.sa_mask,
-                                   sizeof(sigset_t)))
-                        return -EFAULT;
-        }
-out:
-        return ret;
-}
-long compat_sys_rt_sigqueueinfo(int pid, int sig,
-                                struct compat_siginfo __user *uinfo)
-{
-        siginfo_t info;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        if (copy_siginfo_from_user32(&info, uinfo))
-                return -EFAULT;
-        set_fs(KERNEL_DS);
-        ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __force __user *)&info);
-        set_fs(old_fs);
-        return ret;
-}
 int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from)
 {
        int err;
@@ -196,40 +126,6 @@ int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from)
        return err;
 }
-long compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
-                            struct compat_sigaltstack __user *uoss_ptr)
-{
-        stack_t uss, uoss;
-        int ret;
-        mm_segment_t seg;
-        if (uss_ptr) {
-                u32 ptr;
-                memset(&uss, 0, sizeof(stack_t));
-                if (!access_ok(VERIFY_READ, uss_ptr, sizeof(*uss_ptr)) ||
-                            __get_user(ptr, &uss_ptr->ss_sp) ||
-                            __get_user(uss.ss_flags, &uss_ptr->ss_flags) ||
-                            __get_user(uss.ss_size, &uss_ptr->ss_size))
-                        return -EFAULT;
-                uss.ss_sp = compat_ptr(ptr);
-        }
-        seg = get_fs();
-        set_fs(KERNEL_DS);
-        ret = do_sigaltstack(uss_ptr ? (stack_t __user __force *)&uss : NULL,
-                             (stack_t __user __force *)&uoss,
-                             (unsigned long)compat_ptr(current_pt_regs()->sp));
-        set_fs(seg);
-        if (ret >= 0 && uoss_ptr)  {
-                if (!access_ok(VERIFY_WRITE, uoss_ptr, sizeof(*uoss_ptr)) ||
-                    __put_user(ptr_to_compat(uoss.ss_sp), &uoss_ptr->ss_sp) ||
-                    __put_user(uoss.ss_flags, &uoss_ptr->ss_flags) ||
-                    __put_user(uoss.ss_size, &uoss_ptr->ss_size))
-                        ret = -EFAULT;
-        }
-        return ret;
-}
 /* The assembly shim for this function arranges to ignore the return value. */
 long compat_sys_rt_sigreturn(void)
 {
@@ -248,7 +144,7 @@ long compat_sys_rt_sigreturn(void)
        if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
                goto badframe;
-        if (compat_sys_sigaltstack(&frame->uc.uc_stack, NULL) == -EFAULT)
+        if (compat_restore_altstack(&frame->uc.uc_stack))
                goto badframe;
        return 0;
@@ -325,11 +221,7 @@ int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        err |= __clear_user(&frame->save_area, sizeof(frame->save_area));
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(0, &frame->uc.uc_link);
-        err |= __put_user(ptr_to_compat((void *)(current->sas_ss_sp)),
+        err |= __compat_save_altstack(&frame->uc.uc_stack, regs->sp);
-                          &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->sp),
-                          &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
        err |= setup_sigcontext(&frame->uc.uc_mcontext, regs);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
        if (err)
diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c
index 657a7ace4ab4..9531845bf661 100644
--- a/arch/tile/kernel/signal.c
+++ b/arch/tile/kernel/signal.c
@@ -37,13 +37,6 @@
 #define DEBUG_SIG 0
-SYSCALL_DEFINE2(sigaltstack, const stack_t __user *, uss,
-                stack_t __user *, uoss)
-{
-        return do_sigaltstack(uss, uoss, current_pt_regs()->sp);
-}
 /*
 * Do a signal return; undo the signal stack.
 */
@@ -100,7 +93,7 @@ SYSCALL_DEFINE0(rt_sigreturn)
        if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
                goto badframe;
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT)
+        if (restore_altstack(&frame->uc.uc_stack))
                goto badframe;
        return 0;
@@ -191,11 +184,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        err |= __clear_user(&frame->save_area, sizeof(frame->save_area));
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(NULL, &frame->uc.uc_link);
-        err |= __put_user((void __user *)(current->sas_ss_sp),
+        err |= __save_altstack(&frame->uc.uc_stack, regs->sp);
-                          &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->sp),
-                          &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
        err |= setup_sigcontext(&frame->uc.uc_mcontext, regs);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
        if (err)
diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index 48ccf718e290..3e831b3fd07b 100644
--- a/arch/um/kernel/signal.c
+++ b/arch/um/kernel/signal.c
@@ -122,13 +122,3 @@ int do_signal(void)
 {
        return kern_do_signal(&current->thread.regs);
 }
-/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-long sys_sigsuspend(int history0, int history1, old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 60651df5f952..a62786fdcaab 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -16,6 +16,7 @@ config UNICORE32
        select ARCH_WANT_FRAME_POINTERS
        select GENERIC_IOMAP
        select MODULES_USE_ELF_REL
+        select GENERIC_SIGALTSTACK
        help
          UniCore-32 is 32-bit Instruction Set Architecture,
          including a series of low-power-consumption RISC chip
diff --git a/arch/unicore32/kernel/entry.S b/arch/unicore32/kernel/entry.S
index 581630d91444..bcdedd80890e 100644
--- a/arch/unicore32/kernel/entry.S
+++ b/arch/unicore32/kernel/entry.S
@@ -674,11 +674,6 @@ ENTRY(sys_rt_sigreturn)
                b       __sys_rt_sigreturn
 ENDPROC(sys_rt_sigreturn)
-ENTRY(sys_sigaltstack)
-                ldw     r2, [sp+], #S_OFF + S_SP
-                b       do_sigaltstack
-ENDPROC(sys_sigaltstack)
        __INIT
 /*
diff --git a/arch/unicore32/kernel/signal.c b/arch/unicore32/kernel/signal.c
index b8b2ffd774d6..6905f0ebdc77 100644
--- a/arch/unicore32/kernel/signal.c
+++ b/arch/unicore32/kernel/signal.c
@@ -123,8 +123,7 @@ asmlinkage int __sys_rt_sigreturn(struct pt_regs *regs)
        if (restore_sigframe(regs, &frame->sig))
                goto badframe;
-        if (do_sigaltstack(&frame->sig.uc.uc_stack, NULL, regs->UCreg_sp)
+        if (restore_altstack(&frame->sig.uc.uc_stack))
-                        == -EFAULT)
                goto badframe;
        return regs->UCreg_00;
@@ -265,7 +264,6 @@ static int setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
 {
        struct rt_sigframe __user *frame =
                        get_sigframe(ka, regs, sizeof(*frame));
-        stack_t stack;
        int err = 0;
        if (!frame)
@@ -275,13 +273,7 @@ static int setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
        err |= __put_user(0, &frame->sig.uc.uc_flags);
        err |= __put_user(NULL, &frame->sig.uc.uc_link);
+        err |= __save_altstack(&frame->sig.uc.uc_stack, regs->UCreg_sp);
-        memset(&stack, 0, sizeof(stack));
-        stack.ss_sp = (void __user *)current->sas_ss_sp;
-        stack.ss_flags = sas_ss_flags(regs->UCreg_sp);
-        stack.ss_size = current->sas_ss_size;
-        err |= __copy_to_user(&frame->sig.uc.uc_stack, &stack, sizeof(stack));
        err |= setup_sigframe(&frame->sig, regs, set);
        if (err == 0)
                err |= setup_return(regs, ka, frame->sig.retcode, frame, usig);
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 79795af59810..87d09175a0a9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -114,6 +114,12 @@ config X86
        select MODULES_USE_ELF_RELA if X86_64
        select CLONE_BACKWARDS if X86_32
        select GENERIC_SIGALTSTACK
+        select GENERIC_COMPAT_RT_SIGACTION
+        select GENERIC_COMPAT_RT_SIGQUEUEINFO
+        select GENERIC_COMPAT_RT_SIGPENDING
+        select OLD_SIGSUSPEND3 if X86_32 || IA32_EMULATION
+        select OLD_SIGACTION if X86_32
+        select COMPAT_OLD_SIGACTION if IA32_EMULATION
 config INSTRUCTION_DECODER
        def_bool y
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index a1daf4a65009..b0460cd7de5a 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -129,13 +129,6 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
        return err;
 }
-asmlinkage long sys32_sigsuspend(int history0, int history1, old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
 /*
 * Do a signal return; undo the signal stack.
 */
@@ -215,8 +208,9 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
        return err;
 }
-asmlinkage long sys32_sigreturn(struct pt_regs *regs)
+asmlinkage long sys32_sigreturn(void)
 {
+        struct pt_regs *regs = current_pt_regs();
        struct sigframe_ia32 __user *frame = (struct sigframe_ia32 __user *)(regs->sp-8);
        sigset_t set;
        unsigned int ax;
@@ -241,8 +235,9 @@ badframe:
        return 0;
 }
-asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
+asmlinkage long sys32_rt_sigreturn(void)
 {
+        struct pt_regs *regs = current_pt_regs();
        struct rt_sigframe_ia32 __user *frame;
        sigset_t set;
        unsigned int ax;
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 102ff7cb3e41..c05e16b4536b 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -456,18 +456,16 @@ ia32_badsys:
        ALIGN
 GLOBAL(\label)
        leaq \func(%rip),%rax
-        leaq -ARGOFFSET+8(%rsp),\arg    /* 8 for return address */
        jmp  ia32_ptregs_common 
        .endm
        CFI_STARTPROC32
-        PTREGSCALL stub32_rt_sigreturn, sys32_rt_sigreturn, %rdi
+        PTREGSCALL stub32_rt_sigreturn, sys32_rt_sigreturn
-        PTREGSCALL stub32_sigreturn, sys32_sigreturn, %rdi
+        PTREGSCALL stub32_sigreturn, sys32_sigreturn
-        PTREGSCALL stub32_execve, compat_sys_execve, %rcx
+        PTREGSCALL stub32_execve, compat_sys_execve
-        PTREGSCALL stub32_fork, sys_fork, %rdi
+        PTREGSCALL stub32_fork, sys_fork
-        PTREGSCALL stub32_vfork, sys_vfork, %rdi
+        PTREGSCALL stub32_vfork, sys_vfork
-        PTREGSCALL stub32_iopl, sys_iopl, %rsi
        ALIGN
 GLOBAL(stub32_clone)
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index d0b689ba7be2..592f5a9a9c0e 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -172,183 +172,12 @@ asmlinkage long sys32_mprotect(unsigned long start, size_t len,
        return sys_mprotect(start, len, prot);
 }
-asmlinkage long sys32_rt_sigaction(int sig, struct sigaction32 __user *act,
-                                   struct sigaction32 __user *oact,
-                                   unsigned int sigsetsize)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        compat_sigset_t set32;
-        /* XXX: Don't preclude handling different sized sigset_t's.  */
-        if (sigsetsize != sizeof(compat_sigset_t))
-                return -EINVAL;
-        if (act) {
-                compat_uptr_t handler, restorer;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(restorer, &act->sa_restorer) ||
-                    __copy_from_user(&set32, &act->sa_mask,
-                                     sizeof(compat_sigset_t)))
-                        return -EFAULT;
-                new_ka.sa.sa_handler = compat_ptr(handler);
-                new_ka.sa.sa_restorer = compat_ptr(restorer);
-                /*
-                 * FIXME: here we rely on _COMPAT_NSIG_WORS to be >=
-                 * than _NSIG_WORDS << 1
-                 */
-                switch (_NSIG_WORDS) {
-                case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6]
-                                | (((long)set32.sig[7]) << 32);
-                case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4]
-                                | (((long)set32.sig[5]) << 32);
-                case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2]
-                                | (((long)set32.sig[3]) << 32);
-                case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0]
-                                | (((long)set32.sig[1]) << 32);
-                }
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                /*
-                 * FIXME: here we rely on _COMPAT_NSIG_WORS to be >=
-                 * than _NSIG_WORDS << 1
-                 */
-                switch (_NSIG_WORDS) {
-                case 4:
-                        set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32);
-                        set32.sig[6] = old_ka.sa.sa_mask.sig[3];
-                case 3:
-                        set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32);
-                        set32.sig[4] = old_ka.sa.sa_mask.sig[2];
-                case 2:
-                        set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32);
-                        set32.sig[2] = old_ka.sa.sa_mask.sig[1];
-                case 1:
-                        set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32);
-                        set32.sig[0] = old_ka.sa.sa_mask.sig[0];
-                }
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(ptr_to_compat(old_ka.sa.sa_handler),
-                               &oact->sa_handler) ||
-                    __put_user(ptr_to_compat(old_ka.sa.sa_restorer),
-                               &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __copy_to_user(&oact->sa_mask, &set32,
-                                   sizeof(compat_sigset_t)))
-                        return -EFAULT;
-        }
-        return ret;
-}
-asmlinkage long sys32_sigaction(int sig, struct old_sigaction32 __user *act,
-                                struct old_sigaction32 __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        if (act) {
-                compat_old_sigset_t mask;
-                compat_uptr_t handler, restorer;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(restorer, &act->sa_restorer) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                new_ka.sa.sa_handler = compat_ptr(handler);
-                new_ka.sa.sa_restorer = compat_ptr(restorer);
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(ptr_to_compat(old_ka.sa.sa_handler),
-                               &oact->sa_handler) ||
-                    __put_user(ptr_to_compat(old_ka.sa.sa_restorer),
-                               &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
-}
 asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int __user *stat_addr,
                              int options)
 {
        return compat_sys_wait4(pid, stat_addr, options, NULL);
 }
-/* 32-bit timeval and related flotsam.  */
-asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
-                                    struct compat_timespec __user *interval)
-{
-        struct timespec t;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
-        set_fs(old_fs);
-        if (put_compat_timespec(&t, interval))
-                return -EFAULT;
-        return ret;
-}
-asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
-                                    compat_size_t sigsetsize)
-{
-        sigset_t s;
-        compat_sigset_t s32;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        set_fs(KERNEL_DS);
-        ret = sys_rt_sigpending((sigset_t __user *)&s, sigsetsize);
-        set_fs(old_fs);
-        if (!ret) {
-                switch (_NSIG_WORDS) {
-                case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
-                case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
-                case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
-                case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
-                }
-                if (copy_to_user(set, &s32, sizeof(compat_sigset_t)))
-                        return -EFAULT;
-        }
-        return ret;
-}
-asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig,
-                                      compat_siginfo_t __user *uinfo)
-{
-        siginfo_t info;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-        if (copy_siginfo_from_user32(&info, uinfo))
-                return -EFAULT;
-        set_fs(KERNEL_DS);
-        ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *)&info);
-        set_fs(old_fs);
-        return ret;
-}
 /* warning: next two assume little endian */
 asmlinkage long sys32_pread(unsigned int fd, char __user *ubuf, u32 count,
                            u32 poslo, u32 poshi)
diff --git a/arch/x86/include/asm/ia32.h b/arch/x86/include/asm/ia32.h
index 4c6da2e4bb1d..d0e8e0141041 100644
--- a/arch/x86/include/asm/ia32.h
+++ b/arch/x86/include/asm/ia32.h
@@ -13,21 +13,6 @@
 #include <asm/sigcontext32.h>
 /* signal.h */
-struct sigaction32 {
-        unsigned int  sa_handler;       /* Really a pointer, but need to deal
-                                           with 32 bits */
-        unsigned int sa_flags;
-        unsigned int sa_restorer;       /* Another 32 bit pointer */
-        compat_sigset_t sa_mask;        /* A 32 bit mask */
-};
-struct old_sigaction32 {
-        unsigned int  sa_handler;       /* Really a pointer, but need to deal
-                                           with 32 bits */
-        compat_old_sigset_t sa_mask;    /* A 32 bit mask */
-        unsigned int sa_flags;
-        unsigned int sa_restorer;       /* Another 32 bit pointer */
-};
 struct ucontext_ia32 {
        unsigned int      uc_flags;
diff --git a/arch/x86/include/asm/signal.h b/arch/x86/include/asm/signal.h
index 9bda8224f3d5..35e67a457182 100644
--- a/arch/x86/include/asm/signal.h
+++ b/arch/x86/include/asm/signal.h
@@ -34,15 +34,6 @@ extern void do_notify_resume(struct pt_regs *, void *, __u32);
 #define __ARCH_HAS_SA_RESTORER
-#ifdef __i386__
-struct old_sigaction {
-        __sighandler_t sa_handler;
-        old_sigset_t sa_mask;
-        unsigned long sa_flags;
-        __sigrestore_t sa_restorer;
-};
-#endif /* !__i386__ */
 #include <asm/sigcontext.h>
 #ifdef __i386__
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index 31f61f96e0fb..0218d917f509 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -32,22 +32,11 @@ struct mmap_arg_struct32;
 asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *);
 asmlinkage long sys32_mprotect(unsigned long, size_t, unsigned long);
-struct sigaction32;
-struct old_sigaction32;
-asmlinkage long sys32_rt_sigaction(int, struct sigaction32 __user *,
-                                   struct sigaction32 __user *, unsigned int);
-asmlinkage long sys32_sigaction(int, struct old_sigaction32 __user *,
-                                struct old_sigaction32 __user *);
 asmlinkage long sys32_alarm(unsigned int);
 asmlinkage long sys32_waitpid(compat_pid_t, unsigned int __user *, int);
 asmlinkage long sys32_sysfs(int, u32, u32);
-asmlinkage long sys32_sched_rr_get_interval(compat_pid_t,
-                                            struct compat_timespec __user *);
-asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *, compat_size_t);
-asmlinkage long sys32_rt_sigqueueinfo(int, int, compat_siginfo_t __user *);
 asmlinkage long sys32_pread(unsigned int, char __user *, u32, u32, u32);
 asmlinkage long sys32_pwrite(unsigned int, const char __user *, u32, u32, u32);
@@ -68,9 +57,8 @@ asmlinkage long sys32_fallocate(int, int, unsigned,
                                unsigned, unsigned, unsigned);
 /* ia32/ia32_signal.c */
-asmlinkage long sys32_sigsuspend(int, int, old_sigset_t);
+asmlinkage long sys32_sigreturn(void);
-asmlinkage long sys32_sigreturn(struct pt_regs *);
+asmlinkage long sys32_rt_sigreturn(void);
-asmlinkage long sys32_rt_sigreturn(struct pt_regs *);
 /* ia32/ipc32.c */
 asmlinkage long sys32_ipc(u32, int, int, int, compat_uptr_t, u32);
diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h
index 58b7e3eac0ae..6cf0a9cc60cd 100644
--- a/arch/x86/include/asm/syscalls.h
+++ b/arch/x86/include/asm/syscalls.h
@@ -18,13 +18,13 @@
 /* Common in X86_32 and X86_64 */
 /* kernel/ioport.c */
 asmlinkage long sys_ioperm(unsigned long, unsigned long, int);
-long sys_iopl(unsigned int, struct pt_regs *);
+asmlinkage long sys_iopl(unsigned int);
 /* kernel/ldt.c */
 asmlinkage int sys_modify_ldt(int, void __user *, unsigned long);
 /* kernel/signal.c */
-long sys_rt_sigreturn(struct pt_regs *);
+long sys_rt_sigreturn(void);
 /* kernel/tls.c */
 asmlinkage int sys_set_thread_area(struct user_desc __user *);
@@ -34,14 +34,11 @@ asmlinkage int sys_get_thread_area(struct user_desc __user *);
 #ifdef CONFIG_X86_32
 /* kernel/signal.c */
-asmlinkage int sys_sigsuspend(int, int, old_sigset_t);
+unsigned long sys_sigreturn(void);
-asmlinkage int sys_sigaction(int, const struct old_sigaction __user *,
-                             struct old_sigaction __user *);
-unsigned long sys_sigreturn(struct pt_regs *);
 /* kernel/vm86_32.c */
-int sys_vm86old(struct vm86_struct __user *, struct pt_regs *);
+int sys_vm86old(struct vm86_struct __user *);
-int sys_vm86(unsigned long, unsigned long, struct pt_regs *);
+int sys_vm86(unsigned long, unsigned long);
 #else /* CONFIG_X86_32 */
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 6ed91d9980e2..352e5a9279ec 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -699,51 +699,6 @@ END(syscall_badsys)
 */
        .popsection
-/*
- * System calls that need a pt_regs pointer.
- */
-#define PTREGSCALL0(name) \
-ENTRY(ptregs_##name) ;  \
-        leal 4(%esp),%eax; \
-        jmp sys_##name; \
-ENDPROC(ptregs_##name)
-#define PTREGSCALL1(name) \
-ENTRY(ptregs_##name) ; \
-        leal 4(%esp),%edx; \
-        movl (PT_EBX+4)(%esp),%eax; \
-        jmp sys_##name; \
-ENDPROC(ptregs_##name)
-#define PTREGSCALL2(name) \
-ENTRY(ptregs_##name) ; \
-        leal 4(%esp),%ecx; \
-        movl (PT_ECX+4)(%esp),%edx; \
-        movl (PT_EBX+4)(%esp),%eax; \
-        jmp sys_##name; \
-ENDPROC(ptregs_##name)
-#define PTREGSCALL3(name) \
-ENTRY(ptregs_##name) ; \
-        CFI_STARTPROC; \
-        leal 4(%esp),%eax; \
-        pushl_cfi %eax; \
-        movl PT_EDX(%eax),%ecx; \
-        movl PT_ECX(%eax),%edx; \
-        movl PT_EBX(%eax),%eax; \
-        call sys_##name; \
-        addl $4,%esp; \
-        CFI_ADJUST_CFA_OFFSET -4; \
-        ret; \
-        CFI_ENDPROC; \
-ENDPROC(ptregs_##name)
-PTREGSCALL1(iopl)
-PTREGSCALL0(sigreturn)
-PTREGSCALL0(rt_sigreturn)
-PTREGSCALL2(vm86)
-PTREGSCALL1(vm86old)
 .macro FIXUP_ESPFIX_STACK
 /*
 * Switch back for ESPFIX stack to the normal zerobased stack
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 07a7a04529bc..197512242e3b 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -828,23 +828,6 @@ int_restore_rest:
        CFI_ENDPROC
 END(system_call)
-/*
- * Certain special system calls that need to save a complete full stack frame.
- */
-        .macro PTREGSCALL label,func,arg
-ENTRY(\label)
-        PARTIAL_FRAME 1 8               /* offset 8: return address */
-        subq $REST_SKIP, %rsp
-        CFI_ADJUST_CFA_OFFSET REST_SKIP
-        call save_rest
-        DEFAULT_FRAME 0 8               /* offset 8: return address */
-        leaq 8(%rsp), \arg      /* pt_regs pointer */
-        call \func
-        jmp ptregscall_common
-        CFI_ENDPROC
-END(\label)
-        .endm
        .macro FORK_LIKE func
 ENTRY(stub_\func)
        CFI_STARTPROC
@@ -861,10 +844,22 @@ ENTRY(stub_\func)
 END(stub_\func)
        .endm
+        .macro FIXED_FRAME label,func
+ENTRY(\label)
+        CFI_STARTPROC
+        PARTIAL_FRAME 0 8               /* offset 8: return address */
+        FIXUP_TOP_OF_STACK %r11, 8-ARGOFFSET
+        call \func
+        RESTORE_TOP_OF_STACK %r11, 8-ARGOFFSET
+        ret
+        CFI_ENDPROC
+END(\label)
+        .endm
        FORK_LIKE  clone
        FORK_LIKE  fork
        FORK_LIKE  vfork
-        PTREGSCALL stub_iopl, sys_iopl, %rsi
+        FIXED_FRAME stub_iopl, sys_iopl
 ENTRY(ptregscall_common)
        DEFAULT_FRAME 1 8       /* offset 8: return address */
@@ -886,7 +881,6 @@ ENTRY(stub_execve)
        SAVE_REST
        FIXUP_TOP_OF_STACK %r11
        call sys_execve
-        RESTORE_TOP_OF_STACK %r11
        movq %rax,RAX(%rsp)
        RESTORE_REST
        jmp int_ret_from_sys_call
@@ -902,7 +896,6 @@ ENTRY(stub_rt_sigreturn)
        addq $8, %rsp
        PARTIAL_FRAME 0
        SAVE_REST
-        movq %rsp,%rdi
        FIXUP_TOP_OF_STACK %r11
        call sys_rt_sigreturn
        movq %rax,RAX(%rsp) # fixme, this could be done at the higher layer
@@ -917,7 +910,6 @@ ENTRY(stub_x32_rt_sigreturn)
        addq $8, %rsp
        PARTIAL_FRAME 0
        SAVE_REST
-        movq %rsp,%rdi
        FIXUP_TOP_OF_STACK %r11
        call sys32_x32_rt_sigreturn
        movq %rax,RAX(%rsp) # fixme, this could be done at the higher layer
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index 8c968974253d..4ddaf66ea35f 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -93,8 +93,9 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 * on system-call entry - see also fork() and the signal handling
 * code.
 */
-long sys_iopl(unsigned int level, struct pt_regs *regs)
+SYSCALL_DEFINE1(iopl, unsigned int, level)
 {
+        struct pt_regs *regs = current_pt_regs();
        unsigned int old = (regs->flags >> 12) & 3;
        struct thread_struct *t = &current->thread;
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index d6bf1f34a6e9..d5b1f8a912ff 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -535,70 +535,13 @@ static int x32_setup_rt_frame(int sig, struct k_sigaction *ka,
        return 0;
 }
-#ifdef CONFIG_X86_32
-/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage int
-sys_sigsuspend(int history0, int history1, old_sigset_t mask)
-{
-        sigset_t blocked;
-        siginitset(&blocked, mask);
-        return sigsuspend(&blocked);
-}
-asmlinkage int
-sys_sigaction(int sig, const struct old_sigaction __user *act,
-              struct old_sigaction __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret = 0;
-        if (act) {
-                old_sigset_t mask;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)))
-                        return -EFAULT;
-                get_user_try {
-                        get_user_ex(new_ka.sa.sa_handler, &act->sa_handler);
-                        get_user_ex(new_ka.sa.sa_flags, &act->sa_flags);
-                        get_user_ex(mask, &act->sa_mask);
-                        get_user_ex(new_ka.sa.sa_restorer, &act->sa_restorer);
-                } get_user_catch(ret);
-                if (ret)
-                        return -EFAULT;
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)))
-                        return -EFAULT;
-                put_user_try {
-                        put_user_ex(old_ka.sa.sa_handler, &oact->sa_handler);
-                        put_user_ex(old_ka.sa.sa_flags, &oact->sa_flags);
-                        put_user_ex(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
-                        put_user_ex(old_ka.sa.sa_restorer, &oact->sa_restorer);
-                } put_user_catch(ret);
-                if (ret)
-                        return -EFAULT;
-        }
-        return ret;
-}
-#endif /* CONFIG_X86_32 */
 /*
 * Do a signal return; undo the signal stack.
 */
 #ifdef CONFIG_X86_32
-unsigned long sys_sigreturn(struct pt_regs *regs)
+unsigned long sys_sigreturn(void)
 {
+        struct pt_regs *regs = current_pt_regs();
        struct sigframe __user *frame;
        unsigned long ax;
        sigset_t set;
@@ -625,8 +568,9 @@ badframe:
 }
 #endif /* CONFIG_X86_32 */
-long sys_rt_sigreturn(struct pt_regs *regs)
+long sys_rt_sigreturn(void)
 {
+        struct pt_regs *regs = current_pt_regs();
        struct rt_sigframe __user *frame;
        unsigned long ax;
        sigset_t set;
@@ -843,8 +787,9 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where)
 }
 #ifdef CONFIG_X86_X32_ABI
-asmlinkage long sys32_x32_rt_sigreturn(struct pt_regs *regs)
+asmlinkage long sys32_x32_rt_sigreturn(void)
 {
+        struct pt_regs *regs = current_pt_regs();
        struct rt_sigframe_x32 __user *frame;
        sigset_t set;
        unsigned long ax;
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 1dfe69cc78a8..1cf5766dde16 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -202,7 +202,7 @@ out:
 static int do_vm86_irq_handling(int subfunction, int irqnumber);
 static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk);
-int sys_vm86old(struct vm86_struct __user *v86, struct pt_regs *regs)
+int sys_vm86old(struct vm86_struct __user *v86)
 {
        struct kernel_vm86_struct info; /* declare this _on top_,
                                         * this avoids wasting of stack space.
@@ -222,7 +222,7 @@ int sys_vm86old(struct vm86_struct __user *v86, struct pt_regs *regs)
        if (tmp)
                goto out;
        memset(&info.vm86plus, 0, (int)&info.regs32 - (int)&info.vm86plus);
-        info.regs32 = regs;
+        info.regs32 = current_pt_regs();
        tsk->thread.vm86_info = v86;
        do_sys_vm86(&info, tsk);
        ret = 0;        /* we never return here */
@@ -231,7 +231,7 @@ out:
 }
-int sys_vm86(unsigned long cmd, unsigned long arg, struct pt_regs *regs)
+int sys_vm86(unsigned long cmd, unsigned long arg)
 {
        struct kernel_vm86_struct info; /* declare this _on top_,
                                         * this avoids wasting of stack space.
@@ -272,7 +272,7 @@ int sys_vm86(unsigned long cmd, unsigned long arg, struct pt_regs *regs)
        ret = -EFAULT;
        if (tmp)
                goto out;
-        info.regs32 = regs;
+        info.regs32 = current_pt_regs();
        info.vm86plus.is_vm86pus = 1;
        tsk->thread.vm86_info = (struct vm86_struct __user *)v86;
        do_sys_vm86(&info, tsk);
diff --git a/arch/x86/syscalls/syscall_32.tbl b/arch/x86/syscalls/syscall_32.tbl
index 28e3fa9056ea..f2fe78ff22cc 100644
--- a/arch/x86/syscalls/syscall_32.tbl
+++ b/arch/x86/syscalls/syscall_32.tbl
@@ -73,12 +73,12 @@
 64      i386    getppid                 sys_getppid
 65      i386    getpgrp                 sys_getpgrp
 66      i386    setsid                  sys_setsid
-67      i386    sigaction               sys_sigaction                   sys32_sigaction
+67      i386    sigaction               sys_sigaction                   compat_sys_sigaction
 68      i386    sgetmask                sys_sgetmask
 69      i386    ssetmask                sys_ssetmask
 70      i386    setreuid                sys_setreuid16
 71      i386    setregid                sys_setregid16
-72      i386    sigsuspend              sys_sigsuspend                  sys32_sigsuspend
+72      i386    sigsuspend              sys_sigsuspend                  sys_sigsuspend
 73      i386    sigpending              sys_sigpending                  compat_sys_sigpending
 74      i386    sethostname             sys_sethostname
 75      i386    setrlimit               sys_setrlimit                   compat_sys_setrlimit
@@ -116,16 +116,16 @@
 107     i386    lstat                   sys_newlstat                    compat_sys_newlstat
 108     i386    fstat                   sys_newfstat                    compat_sys_newfstat
 109     i386    olduname                sys_uname
-110     i386    iopl                    ptregs_iopl                     stub32_iopl
+110     i386    iopl                    sys_iopl
 111     i386    vhangup                 sys_vhangup
 112     i386    idle
-113     i386    vm86old                 ptregs_vm86old                  sys32_vm86_warning
+113     i386    vm86old                 sys_vm86old                     sys32_vm86_warning
 114     i386    wait4                   sys_wait4                       compat_sys_wait4
 115     i386    swapoff                 sys_swapoff
 116     i386    sysinfo                 sys_sysinfo                     compat_sys_sysinfo
 117     i386    ipc                     sys_ipc                         sys32_ipc
 118     i386    fsync                   sys_fsync
-119     i386    sigreturn               ptregs_sigreturn                stub32_sigreturn
+119     i386    sigreturn               sys_sigreturn                   stub32_sigreturn
 120     i386    clone                   sys_clone                       stub32_clone
 121     i386    setdomainname           sys_setdomainname
 122     i386    uname                   sys_newuname
@@ -167,24 +167,24 @@
 158     i386    sched_yield             sys_sched_yield
 159     i386    sched_get_priority_max  sys_sched_get_priority_max
 160     i386    sched_get_priority_min  sys_sched_get_priority_min
-161     i386    sched_rr_get_interval   sys_sched_rr_get_interval       sys32_sched_rr_get_interval
+161     i386    sched_rr_get_interval   sys_sched_rr_get_interval       compat_sys_sched_rr_get_interval
 162     i386    nanosleep               sys_nanosleep                   compat_sys_nanosleep
 163     i386    mremap                  sys_mremap
 164     i386    setresuid               sys_setresuid16
 165     i386    getresuid               sys_getresuid16
-166     i386    vm86                    ptregs_vm86                     sys32_vm86_warning
+166     i386    vm86                    sys_vm86                        sys32_vm86_warning
 167     i386    query_module
 168     i386    poll                    sys_poll
 169     i386    nfsservctl
 170     i386    setresgid               sys_setresgid16
 171     i386    getresgid               sys_getresgid16
 172     i386    prctl                   sys_prctl
-173     i386    rt_sigreturn            ptregs_rt_sigreturn             stub32_rt_sigreturn
+173     i386    rt_sigreturn            sys_rt_sigreturn                stub32_rt_sigreturn
-174     i386    rt_sigaction            sys_rt_sigaction                sys32_rt_sigaction
+174     i386    rt_sigaction            sys_rt_sigaction                compat_sys_rt_sigaction
 175     i386    rt_sigprocmask          sys_rt_sigprocmask
-176     i386    rt_sigpending           sys_rt_sigpending               sys32_rt_sigpending
+176     i386    rt_sigpending           sys_rt_sigpending               compat_sys_rt_sigpending
 177     i386    rt_sigtimedwait         sys_rt_sigtimedwait             compat_sys_rt_sigtimedwait
-178     i386    rt_sigqueueinfo         sys_rt_sigqueueinfo             sys32_rt_sigqueueinfo
+178     i386    rt_sigqueueinfo         sys_rt_sigqueueinfo             compat_sys_rt_sigqueueinfo
 179     i386    rt_sigsuspend           sys_rt_sigsuspend
 180     i386    pread64                 sys_pread64                     sys32_pread
 181     i386    pwrite64                sys_pwrite64                    sys32_pwrite
diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl
index dc97328bd90a..38ae65dfd14f 100644
--- a/arch/x86/syscalls/syscall_64.tbl
+++ b/arch/x86/syscalls/syscall_64.tbl
@@ -325,7 +325,7 @@
 # x32-specific system call numbers start at 512 to avoid cache impact
 # for native 64-bit operation.
 #
-512     x32     rt_sigaction            sys32_rt_sigaction
+512     x32     rt_sigaction            compat_sys_rt_sigaction
 513     x32     rt_sigreturn            stub_x32_rt_sigreturn
 514     x32     ioctl                   compat_sys_ioctl
 515     x32     readv                   compat_sys_readv
@@ -335,9 +335,9 @@
 519     x32     recvmsg                 compat_sys_recvmsg
 520     x32     execve                  stub_x32_execve
 521     x32     ptrace                  compat_sys_ptrace
-522     x32     rt_sigpending           sys32_rt_sigpending
+522     x32     rt_sigpending           compat_sys_rt_sigpending
 523     x32     rt_sigtimedwait         compat_sys_rt_sigtimedwait
-524     x32     rt_sigqueueinfo         sys32_rt_sigqueueinfo
+524     x32     rt_sigqueueinfo         compat_sys_rt_sigqueueinfo
 525     x32     sigaltstack             compat_sys_sigaltstack
 526     x32     timer_create            compat_sys_timer_create
 527     x32     mq_notify               compat_sys_mq_notify
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index 53c90fd412d1..cf0f2731484e 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -25,6 +25,8 @@ config X86_32
        select ARCH_WANT_IPC_PARSE_VERSION
        select MODULES_USE_ELF_REL
        select CLONE_BACKWARDS
+        select OLD_SIGSUSPEND3
+        select OLD_SIGACTION
 config X86_64
        def_bool 64BIT
diff --git a/arch/x86/um/Makefile b/arch/x86/um/Makefile
index 5d065b2222d3..eafa324eb7a5 100644
--- a/arch/x86/um/Makefile
+++ b/arch/x86/um/Makefile
@@ -10,7 +10,7 @@ endif
 obj-y = bug.o bugs_$(BITS).o delay.o fault.o ksyms.o ldt.o \
        ptrace_$(BITS).o ptrace_user.o setjmp_$(BITS).o signal.o \
-        stub_$(BITS).o stub_segv.o syscalls_$(BITS).o \
+        stub_$(BITS).o stub_segv.o \
        sys_call_table_$(BITS).o sysrq_$(BITS).o tls_$(BITS).o \
        mem_$(BITS).o subarch.o os-$(OS)/
@@ -25,7 +25,7 @@ subarch-$(CONFIG_HIGHMEM) += ../mm/highmem_32.o
 else
-obj-y += vdso/
+obj-y += syscalls_64.o vdso/
 subarch-y = ../lib/csum-partial_64.o ../lib/memcpy_64.o ../lib/thunk_64.o \
                ../lib/rwsem.o
diff --git a/arch/x86/um/signal.c b/arch/x86/um/signal.c
index 71cef48ea5cd..ae7319db18ee 100644
--- a/arch/x86/um/signal.c
+++ b/arch/x86/um/signal.c
@@ -464,7 +464,7 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
        return 0;
 }
-long sys_sigreturn(struct pt_regs *regs)
+long sys_sigreturn(void)
 {
        unsigned long sp = PT_REGS_SP(&current->thread.regs);
        struct sigframe __user *frame = (struct sigframe __user *)(sp - 8);
@@ -577,7 +577,7 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
 }
 #endif
-long sys_rt_sigreturn(struct pt_regs *regs)
+long sys_rt_sigreturn(void)
 {
        unsigned long sp = PT_REGS_SP(&current->thread.regs);
        struct rt_sigframe __user *frame =
@@ -601,14 +601,3 @@ long sys_rt_sigreturn(struct pt_regs *regs)
        force_sig(SIGSEGV, current);
        return 0;
 }
-#ifdef CONFIG_X86_32
-long ptregs_sigreturn(void)
-{
-        return sys_sigreturn(NULL);
-}
-long ptregs_rt_sigreturn(void)
-{
-        return sys_rt_sigreturn(NULL);
-}
-#endif
diff --git a/arch/x86/um/sys_call_table_32.c b/arch/x86/um/sys_call_table_32.c
index a0c3b0d1a122..531d4269e2e3 100644
--- a/arch/x86/um/sys_call_table_32.c
+++ b/arch/x86/um/sys_call_table_32.c
@@ -24,10 +24,6 @@
 #define old_mmap sys_old_mmap
-#define ptregs_iopl sys_iopl
-#define ptregs_vm86old sys_vm86old
-#define ptregs_vm86 sys_vm86
 #define __SYSCALL_I386(nr, sym, compat) extern asmlinkage void sym(void) ;
 #include <asm/syscalls_32.h>
diff --git a/arch/x86/um/syscalls_32.c b/arch/x86/um/syscalls_32.c
deleted file mode 100644
index e8bcea99acdb..000000000000
--- a/arch/x86/um/syscalls_32.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/* 
- * Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com)
- * Licensed under the GPL
- */
-#include <linux/syscalls.h>
-#include <sysdep/syscalls.h>
-long sys_sigaction(int sig, const struct old_sigaction __user *act,
-                         struct old_sigaction __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        if (act) {
-                old_sigset_t mask;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-        return ret;
-}
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 5aab1acabf1c..23cc6ae35da0 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -16,6 +16,7 @@ config XTENSA
        select ARCH_WANT_OPTIONAL_GPIOLIB
        select CLONE_BACKWARDS
        select IRQ_DOMAIN
+        select GENERIC_SIGALTSTACK
        help
          Xtensa processors are 32-bit RISC machines designed by Tensilica
          primarily for embedded systems.  These processors are both
diff --git a/arch/xtensa/include/asm/syscall.h b/arch/xtensa/include/asm/syscall.h
index 08a23ddac295..3673ff1f1bc5 100644
--- a/arch/xtensa/include/asm/syscall.h
+++ b/arch/xtensa/include/asm/syscall.h
@@ -12,7 +12,6 @@ struct pt_regs;
 asmlinkage long xtensa_ptrace(long, long, long, long);
 asmlinkage long xtensa_sigreturn(struct pt_regs*);
 asmlinkage long xtensa_rt_sigreturn(struct pt_regs*);
-asmlinkage long xtensa_sigaltstack(struct pt_regs *regs);
 asmlinkage long xtensa_shmat(int, char __user *, int);
 asmlinkage long xtensa_fadvise64_64(int, int,
                                    unsigned long long, unsigned long long);
diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h
index 5162418c5d90..19fac3f543a2 100644
--- a/arch/xtensa/include/uapi/asm/unistd.h
+++ b/arch/xtensa/include/uapi/asm/unistd.h
@@ -483,7 +483,7 @@ __SYSCALL(222, sys_ni_syscall, 0)
 #define __NR_restart_syscall                    223
 __SYSCALL(223, sys_restart_syscall, 0)
 #define __NR_sigaltstack                        224
-__SYSCALL(224, xtensa_sigaltstack, 2)
+__SYSCALL(224, sys_sigaltstack, 2)
 #define __NR_rt_sigreturn                       225
 __SYSCALL(225, xtensa_rt_sigreturn, 1)
 #define __NR_rt_sigaction                       226
diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index de34d6be91cd..d7590dddd084 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -265,7 +265,7 @@ asmlinkage long xtensa_rt_sigreturn(long a0, long a1, long a2, long a3,
        ret = regs->areg[2];
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->areg[1]) == -EFAULT)
+        if (restore_altstack(&frame->uc.uc_stack))
                goto badframe;
        return ret;
@@ -368,11 +368,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(0, &frame->uc.uc_link);
-        err |= __put_user((void *)current->sas_ss_sp,
+        err |= __save_altstack(&frame->uc.uc_stack, regs->areg[1]);
-                          &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->areg[1]),
-                          &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
        err |= setup_sigcontext(frame, regs);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
@@ -424,16 +420,6 @@ give_sigsegv:
        return -EFAULT;
 }
-asmlinkage long xtensa_sigaltstack(const stack_t __user *uss,
-                                   stack_t __user *uoss,
-                                   long a2, long a3, long a4, long a5,
-                                   struct pt_regs *regs)
-{
-        return do_sigaltstack(uss, uoss, regs->areg[1]);
-}
 /*
 * Note that 'init' is a special process: it doesn't get signals it doesn't
 * want to handle. Thus you cannot kill init even with a SIGKILL even by
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 2c531f478410..0cc74c4403e4 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -402,9 +402,9 @@ __SC_COMP(__NR_rt_sigsuspend, sys_rt_sigsuspend, compat_sys_rt_sigsuspend)
 #define __NR_rt_sigaction 134
 __SC_COMP(__NR_rt_sigaction, sys_rt_sigaction, compat_sys_rt_sigaction)
 #define __NR_rt_sigprocmask 135
-__SYSCALL(__NR_rt_sigprocmask, sys_rt_sigprocmask)
+__SC_COMP(__NR_rt_sigprocmask, sys_rt_sigprocmask, compat_sys_rt_sigprocmask)
 #define __NR_rt_sigpending 136
-__SYSCALL(__NR_rt_sigpending, sys_rt_sigpending)
+__SC_COMP(__NR_rt_sigpending, sys_rt_sigpending, compat_sys_rt_sigpending)
 #define __NR_rt_sigtimedwait 137
 __SC_COMP(__NR_rt_sigtimedwait, sys_rt_sigtimedwait, \
          compat_sys_rt_sigtimedwait)
diff --git a/kernel/signal.c b/kernel/signal.c
index 775f5552fa0e..87c09e3061d2 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -3562,7 +3562,6 @@ int sigsuspend(sigset_t *set)
        return -ERESTARTNOHAND;
 }
-#ifdef __ARCH_WANT_SYS_RT_SIGSUSPEND
 /**
 *  sys_rt_sigsuspend - replace the signal mask for a value with the
 *      @unewset value until a signal is received
@@ -3603,7 +3602,6 @@ COMPAT_SYSCALL_DEFINE2(rt_sigsuspend, compat_sigset_t __user *, unewset, compat_
 #endif
 }
 #endif
-#endif
 #ifdef CONFIG_OLD_SIGSUSPEND
 SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask)