Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask

Conflicts:
	arch/x86/kernel/io_apic.c
	kernel/rcuclassic.c
	kernel/sched.c
	kernel/time/tick-sched.c

Signed-off-by: Mike Travis <travis@sgi.com>
[ mingo@elte.hu: backmerged typo fix for io_apic.c ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 1090 deletions

diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
deleted file mode 100644
index a941c610e7c..00000000000
--- a/arch/sparc64/kernel/ptrace.c
+++ /dev/null
@@ -1,1090 +0,0 @@
-/* ptrace.c: Sparc process tracing support.
- *
- * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net)
- * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- *
- * Based upon code written by Ross Biro, Linus Torvalds, Bob Manson,
- * and David Mosberger.
- *
- * Added Linux support -miguel (weird, eh?, the original code was meant
- * to emulate SunOS).
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/security.h>
-#include <linux/seccomp.h>
-#include <linux/audit.h>
-#include <linux/signal.h>
-#include <linux/regset.h>
-#include <linux/tracehook.h>
-#include <linux/compat.h>
-#include <linux/elf.h>
-
-#include <asm/asi.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <asm/psrcompat.h>
-#include <asm/visasm.h>
-#include <asm/spitfire.h>
-#include <asm/page.h>
-#include <asm/cpudata.h>
-#include <asm/cacheflush.h>
-
-#include "entry.h"
-
-/* #define ALLOW_INIT_TRACING */
-
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure single step bits etc are not set.
- */
-void ptrace_disable(struct task_struct *child)
-{
-	/* nothing to do */
-}
-
-/* To get the necessary page struct, access_process_vm() first calls
- * get_user_pages().  This has done a flush_dcache_page() on the
- * accessed page.  Then our caller (copy_{to,from}_user_page()) did
- * to memcpy to read/write the data from that page.
- *
- * Now, the only thing we have to do is:
- * 1) flush the D-cache if it's possible than an illegal alias
- *    has been created
- * 2) flush the I-cache if this is pre-cheetah and we did a write
- */
-void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
-			 unsigned long uaddr, void *kaddr,
-			 unsigned long len, int write)
-{
-	BUG_ON(len > PAGE_SIZE);
-
-	if (tlb_type == hypervisor)
-		return;
-
-	preempt_disable();
-
-#ifdef DCACHE_ALIASING_POSSIBLE
-	/* If bit 13 of the kernel address we used to access the
-	 * user page is the same as the virtual address that page
-	 * is mapped to in the user's address space, we can skip the
-	 * D-cache flush.
-	 */
-	if ((uaddr ^ (unsigned long) kaddr) & (1UL << 13)) {
-		unsigned long start = __pa(kaddr);
-		unsigned long end = start + len;
-		unsigned long dcache_line_size;
-
-		dcache_line_size = local_cpu_data().dcache_line_size;
-
-		if (tlb_type == spitfire) {
-			for (; start < end; start += dcache_line_size)
-				spitfire_put_dcache_tag(start & 0x3fe0, 0x0);
-		} else {
-			start &= ~(dcache_line_size - 1);
-			for (; start < end; start += dcache_line_size)
-				__asm__ __volatile__(
-					"stxa %%g0, [%0] %1\n\t"
-					"membar #Sync"
-					: /* no outputs */
-					: "r" (start),
-					"i" (ASI_DCACHE_INVALIDATE));
-		}
-	}
-#endif
-	if (write && tlb_type == spitfire) {
-		unsigned long start = (unsigned long) kaddr;
-		unsigned long end = start + len;
-		unsigned long icache_line_size;
-
-		icache_line_size = local_cpu_data().icache_line_size;
-
-		for (; start < end; start += icache_line_size)
-			flushi(start);
-	}
-
-	preempt_enable();
-}
-
-static int get_from_target(struct task_struct *target, unsigned long uaddr,
-			   void *kbuf, int len)
-{
-	if (target == current) {
-		if (copy_from_user(kbuf, (void __user *) uaddr, len))
-			return -EFAULT;
-	} else {
-		int len2 = access_process_vm(target, uaddr, kbuf, len, 0);
-		if (len2 != len)
-			return -EFAULT;
-	}
-	return 0;
-}
-
-static int set_to_target(struct task_struct *target, unsigned long uaddr,
-			 void *kbuf, int len)
-{
-	if (target == current) {
-		if (copy_to_user((void __user *) uaddr, kbuf, len))
-			return -EFAULT;
-	} else {
-		int len2 = access_process_vm(target, uaddr, kbuf, len, 1);
-		if (len2 != len)
-			return -EFAULT;
-	}
-	return 0;
-}
-
-static int regwindow64_get(struct task_struct *target,
-			   const struct pt_regs *regs,
-			   struct reg_window *wbuf)
-{
-	unsigned long rw_addr = regs->u_regs[UREG_I6];
-
-	if (test_tsk_thread_flag(current, TIF_32BIT)) {
-		struct reg_window32 win32;
-		int i;
-
-		if (get_from_target(target, rw_addr, &win32, sizeof(win32)))
-			return -EFAULT;
-		for (i = 0; i < 8; i++)
-			wbuf->locals[i] = win32.locals[i];
-		for (i = 0; i < 8; i++)
-			wbuf->ins[i] = win32.ins[i];
-	} else {
-		rw_addr += STACK_BIAS;
-		if (get_from_target(target, rw_addr, wbuf, sizeof(*wbuf)))
-			return -EFAULT;
-	}
-
-	return 0;
-}
-
-static int regwindow64_set(struct task_struct *target,
-			   const struct pt_regs *regs,
-			   struct reg_window *wbuf)
-{
-	unsigned long rw_addr = regs->u_regs[UREG_I6];
-
-	if (test_tsk_thread_flag(current, TIF_32BIT)) {
-		struct reg_window32 win32;
-		int i;
-
-		for (i = 0; i < 8; i++)
-			win32.locals[i] = wbuf->locals[i];
-		for (i = 0; i < 8; i++)
-			win32.ins[i] = wbuf->ins[i];
-
-		if (set_to_target(target, rw_addr, &win32, sizeof(win32)))
-			return -EFAULT;
-	} else {
-		rw_addr += STACK_BIAS;
-		if (set_to_target(target, rw_addr, wbuf, sizeof(*wbuf)))
-			return -EFAULT;
-	}
-
-	return 0;
-}
-
-enum sparc_regset {
-	REGSET_GENERAL,
-	REGSET_FP,
-};
-
-static int genregs64_get(struct task_struct *target,
-			 const struct user_regset *regset,
-			 unsigned int pos, unsigned int count,
-			 void *kbuf, void __user *ubuf)
-{
-	const struct pt_regs *regs = task_pt_regs(target);
-	int ret;
-
-	if (target == current)
-		flushw_user();
-
-	ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-				  regs->u_regs,
-				  0, 16 * sizeof(u64));
-	if (!ret && count && pos < (32 * sizeof(u64))) {
-		struct reg_window window;
-
-		if (regwindow64_get(target, regs, &window))
-			return -EFAULT;
-		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-					  &window,
-					  16 * sizeof(u64),
-					  32 * sizeof(u64));
-	}
-
-	if (!ret) {
-		/* TSTATE, TPC, TNPC */
-		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-					  &regs->tstate,
-					  32 * sizeof(u64),
-					  35 * sizeof(u64));
-	}
-
-	if (!ret) {
-		unsigned long y = regs->y;
-
-		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-					  &y,
-					  35 * sizeof(u64),
-					  36 * sizeof(u64));
-	}
-
-	if (!ret) {
-		ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
-					       36 * sizeof(u64), -1);
-
-	}
-	return ret;
-}
-
-static int genregs64_set(struct task_struct *target,
-			 const struct user_regset *regset,
-			 unsigned int pos, unsigned int count,
-			 const void *kbuf, const void __user *ubuf)
-{
-	struct pt_regs *regs = task_pt_regs(target);
-	int ret;
-
-	if (target == current)
-		flushw_user();
-
-	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 regs->u_regs,
-				 0, 16 * sizeof(u64));
-	if (!ret && count && pos < (32 * sizeof(u64))) {
-		struct reg_window window;
-
-		if (regwindow64_get(target, regs, &window))
-			return -EFAULT;
-
-		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-					 &window,
-					 16 * sizeof(u64),
-					 32 * sizeof(u64));
-
-		if (!ret &&
-		    regwindow64_set(target, regs, &window))
-			return -EFAULT;
-	}
-
-	if (!ret && count > 0) {
-		unsigned long tstate;
-
-		/* TSTATE */
-		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-					 &tstate,
-					 32 * sizeof(u64),
-					 33 * sizeof(u64));
-		if (!ret) {
-			/* Only the condition codes and the "in syscall"
-			 * state can be modified in the %tstate register.
-			 */
-			tstate &= (TSTATE_ICC | TSTATE_XCC | TSTATE_SYSCALL);
-			regs->tstate &= ~(TSTATE_ICC | TSTATE_XCC | TSTATE_SYSCALL);
-			regs->tstate |= tstate;
-		}
-	}
-
-	if (!ret) {
-		/* TPC, TNPC */
-		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-					 &regs->tpc,
-					 33 * sizeof(u64),
-					 35 * sizeof(u64));
-	}
-
-	if (!ret) {
-		unsigned long y;
-
-		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-					 &y,
-					 35 * sizeof(u64),
-					 36 * sizeof(u64));
-		if (!ret)
-			regs->y = y;
-	}
-
-	if (!ret)
-		ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
-						36 * sizeof(u64), -1);
-
-	return ret;
-}
-
-static int fpregs64_get(struct task_struct *target,
-			const struct user_regset *regset,
-			unsigned int pos, unsigned int count,
-			void *kbuf, void __user *ubuf)
-{
-	const unsigned long *fpregs = task_thread_info(target)->fpregs;
-	unsigned long fprs, fsr, gsr;
-	int ret;
-
-	if (target == current)
-		save_and_clear_fpu();
-
-	fprs = task_thread_info(target)->fpsaved[0];
-
-	if (fprs & FPRS_DL)
-		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-					  fpregs,
-					  0, 16 * sizeof(u64));
-	else
-		ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
-					       0,
-					       16 * sizeof(u64));
-
-	if (!ret) {
-		if (fprs & FPRS_DU)
-			ret = user_regset_copyout(&pos, &count,
-						  &kbuf, &ubuf,
-						  fpregs + 16,
-						  16 * sizeof(u64),
-						  32 * sizeof(u64));
-		else
-			ret = user_regset_copyout_zero(&pos, &count,
-						       &kbuf, &ubuf,
-						       16 * sizeof(u64),
-						       32 * sizeof(u64));
-	}
-
-	if (fprs & FPRS_FEF) {
-		fsr = task_thread_info(target)->xfsr[0];
-		gsr = task_thread_info(target)->gsr[0];
-	} else {
-		fsr = gsr = 0;
-	}
-
-	if (!ret)
-		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-					  &fsr,
-					  32 * sizeof(u64),
-					  33 * sizeof(u64));
-	if (!ret)
-		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-					  &gsr,
-					  33 * sizeof(u64),
-					  34 * sizeof(u64));
-	if (!ret)
-		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-					  &fprs,
-					  34 * sizeof(u64),
-					  35 * sizeof(u64));
-
-	if (!ret)
-		ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
-					       35 * sizeof(u64), -1);
-
-	return ret;
-}
-
-static int fpregs64_set(struct task_struct *target,
-			const struct user_regset *regset,
-			unsigned int pos, unsigned int count,
-			const void *kbuf, const void __user *ubuf)
-{
-	unsigned long *fpregs = task_thread_info(target)->fpregs;
-	unsigned long fprs;
-	int ret;
-
-	if (target == current)
-		save_and_clear_fpu();
-
-	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 fpregs,
-				 0, 32 * sizeof(u64));
-	if (!ret)
-		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-					 task_thread_info(target)->xfsr,
-					 32 * sizeof(u64),
-					 33 * sizeof(u64));
-	if (!ret)
-		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-					 task_thread_info(target)->gsr,
-					 33 * sizeof(u64),
-					 34 * sizeof(u64));
-
-	fprs = task_thread_info(target)->fpsaved[0];
-	if (!ret && count > 0) {
-		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-					 &fprs,
-					 34 * sizeof(u64),
-					 35 * sizeof(u64));
-	}
-
-	fprs |= (FPRS_FEF | FPRS_DL | FPRS_DU);
-	task_thread_info(target)->fpsaved[0] = fprs;
-
-	if (!ret)
-		ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
-						35 * sizeof(u64), -1);
-	return ret;
-}
-
-static const struct user_regset sparc64_regsets[] = {
-	/* Format is:
-	 * 	G0 --> G7
-	 *	O0 --> O7
-	 *	L0 --> L7
-	 *	I0 --> I7
-	 *	TSTATE, TPC, TNPC, Y
-	 */
-	[REGSET_GENERAL] = {
-		.core_note_type = NT_PRSTATUS,
-		.n = 36,
-		.size = sizeof(u64), .align = sizeof(u64),
-		.get = genregs64_get, .set = genregs64_set
-	},
-	/* Format is:
-	 *	F0 --> F63
-	 *	FSR
-	 *	GSR
-	 *	FPRS
-	 */
-	[REGSET_FP] = {
-		.core_note_type = NT_PRFPREG,
-		.n = 35,
-		.size = sizeof(u64), .align = sizeof(u64),
-		.get = fpregs64_get, .set = fpregs64_set
-	},
-};
-
-static const struct user_regset_view user_sparc64_view = {
-	.name = "sparc64", .e_machine = EM_SPARCV9,
-	.regsets = sparc64_regsets, .n = ARRAY_SIZE(sparc64_regsets)
-};
-
-#ifdef CONFIG_COMPAT
-static int genregs32_get(struct task_struct *target,
-			 const struct user_regset *regset,
-			 unsigned int pos, unsigned int count,
-			 void *kbuf, void __user *ubuf)
-{
-	const struct pt_regs *regs = task_pt_regs(target);
-	compat_ulong_t __user *reg_window;
-	compat_ulong_t *k = kbuf;
-	compat_ulong_t __user *u = ubuf;
-	compat_ulong_t reg;
-
-	if (target == current)
-		flushw_user();
-
-	pos /= sizeof(reg);
-	count /= sizeof(reg);
-
-	if (kbuf) {
-		for (; count > 0 && pos < 16; count--)
-			*k++ = regs->u_regs[pos++];
-
-		reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6];
-		if (target == current) {
-			for (; count > 0 && pos < 32; count--) {
-				if (get_user(*k++, &reg_window[pos++]))
-					return -EFAULT;
-			}
-		} else {
-			for (; count > 0 && pos < 32; count--) {
-				if (access_process_vm(target,
-						      (unsigned long)
-						      &reg_window[pos],
-						      k, sizeof(*k), 0)
-				    != sizeof(*k))
-					return -EFAULT;
-				k++;
-				pos++;
-			}
-		}
-	} else {
-		for (; count > 0 && pos < 16; count--) {
-			if (put_user((compat_ulong_t) regs->u_regs[pos++], u++))
-				return -EFAULT;
-		}
-
-		reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6];
-		if (target == current) {
-			for (; count > 0 && pos < 32; count--) {
-				if (get_user(reg, &reg_window[pos++]) ||
-				    put_user(reg, u++))
-					return -EFAULT;
-			}
-		} else {
-			for (; count > 0 && pos < 32; count--) {
-				if (access_process_vm(target,
-						      (unsigned long)
-						      &reg_window[pos],
-						      &reg, sizeof(reg), 0)
-				    != sizeof(reg))
-					return -EFAULT;
-				if (access_process_vm(target,
-						      (unsigned long) u,
-						      &reg, sizeof(reg), 1)
-				    != sizeof(reg))
-					return -EFAULT;
-				pos++;
-				u++;
-			}
-		}
-	}
-	while (count > 0) {
-		switch (pos) {
-		case 32: /* PSR */
-			reg = tstate_to_psr(regs->tstate);
-			break;
-		case 33: /* PC */
-			reg = regs->tpc;
-			break;
-		case 34: /* NPC */
-			reg = regs->tnpc;
-			break;
-		case 35: /* Y */
-			reg = regs->y;
-			break;
-		case 36: /* WIM */
-		case 37: /* TBR */
-			reg = 0;
-			break;
-		default:
-			goto finish;
-		}
-
-		if (kbuf)
-			*k++ = reg;
-		else if (put_user(reg, u++))
-			return -EFAULT;
-		pos++;
-		count--;
-	}
-finish:
-	pos *= sizeof(reg);
-	count *= sizeof(reg);
-
-	return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
-					38 * sizeof(reg), -1);
-}
-
-static int genregs32_set(struct task_struct *target,
-			 const struct user_regset *regset,
-			 unsigned int pos, unsigned int count,
-			 const void *kbuf, const void __user *ubuf)
-{
-	struct pt_regs *regs = task_pt_regs(target);
-	compat_ulong_t __user *reg_window;
-	const compat_ulong_t *k = kbuf;
-	const compat_ulong_t __user *u = ubuf;
-	compat_ulong_t reg;
-
-	if (target == current)
-		flushw_user();
-
-	pos /= sizeof(reg);
-	count /= sizeof(reg);
-
-	if (kbuf) {
-		for (; count > 0 && pos < 16; count--)
-			regs->u_regs[pos++] = *k++;
-
-		reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6];
-		if (target == current) {
-			for (; count > 0 && pos < 32; count--) {
-				if (put_user(*k++, &reg_window[pos++]))
-					return -EFAULT;
-			}
-		} else {
-			for (; count > 0 && pos < 32; count--) {
-				if (access_process_vm(target,
-						      (unsigned long)
-						      &reg_window[pos],
-						      (void *) k,
-						      sizeof(*k), 1)
-				    != sizeof(*k))
-					return -EFAULT;
-				k++;
-				pos++;
-			}
-		}
-	} else {
-		for (; count > 0 && pos < 16; count--) {
-			if (get_user(reg, u++))
-				return -EFAULT;
-			regs->u_regs[pos++] = reg;
-		}
-
-		reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6];
-		if (target == current) {
-			for (; count > 0 && pos < 32; count--) {
-				if (get_user(reg, u++) ||
-				    put_user(reg, &reg_window[pos++]))
-					return -EFAULT;
-			}
-		} else {
-			for (; count > 0 && pos < 32; count--) {
-				if (access_process_vm(target,
-						      (unsigned long)
-						      u,
-						      &reg, sizeof(reg), 0)
-				    != sizeof(reg))
-					return -EFAULT;
-				if (access_process_vm(target,
-						      (unsigned long)
-						      &reg_window[pos],
-						      &reg, sizeof(reg), 1)
-				    != sizeof(reg))
-					return -EFAULT;
-				pos++;
-				u++;
-			}
-		}
-	}
-	while (count > 0) {
-		unsigned long tstate;
-
-		if (kbuf)
-			reg = *k++;
-		else if (get_user(reg, u++))
-			return -EFAULT;
-
-		switch (pos) {
-		case 32: /* PSR */
-			tstate = regs->tstate;
-			tstate &= ~(TSTATE_ICC | TSTATE_XCC | TSTATE_SYSCALL);
-			tstate |= psr_to_tstate_icc(reg);
-			if (reg & PSR_SYSCALL)
-				tstate |= TSTATE_SYSCALL;
-			regs->tstate = tstate;
-			break;
-		case 33: /* PC */
-			regs->tpc = reg;
-			break;
-		case 34: /* NPC */
-			regs->tnpc = reg;
-			break;
-		case 35: /* Y */
-			regs->y = reg;
-			break;
-		case 36: /* WIM */
-		case 37: /* TBR */
-			break;
-		default:
-			goto finish;
-		}
-
-		pos++;
-		count--;
-	}
-finish:
-	pos *= sizeof(reg);
-	count *= sizeof(reg);
-
-	return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
-					 38 * sizeof(reg), -1);
-}
-
-static int fpregs32_get(struct task_struct *target,
-			const struct user_regset *regset,
-			unsigned int pos, unsigned int count,
-			void *kbuf, void __user *ubuf)
-{
-	const unsigned long *fpregs = task_thread_info(target)->fpregs;
-	compat_ulong_t enabled;
-	unsigned long fprs;
-	compat_ulong_t fsr;
-	int ret = 0;
-
-	if (target == current)
-		save_and_clear_fpu();
-
-	fprs = task_thread_info(target)->fpsaved[0];
-	if (fprs & FPRS_FEF) {
-		fsr = task_thread_info(target)->xfsr[0];
-		enabled = 1;
-	} else {
-		fsr = 0;
-		enabled = 0;
-	}
-
-	ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-				  fpregs,
-				  0, 32 * sizeof(u32));
-
-	if (!ret)
-		ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
-					       32 * sizeof(u32),
-					       33 * sizeof(u32));
-	if (!ret)
-		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-					  &fsr,
-					  33 * sizeof(u32),
-					  34 * sizeof(u32));
-
-	if (!ret) {
-		compat_ulong_t val;
-
-		val = (enabled << 8) | (8 << 16);
-		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-					  &val,
-					  34 * sizeof(u32),
-					  35 * sizeof(u32));
-	}
-
-	if (!ret)
-		ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
-					       35 * sizeof(u32), -1);
-
-	return ret;
-}
-
-static int fpregs32_set(struct task_struct *target,
-			const struct user_regset *regset,
-			unsigned int pos, unsigned int count,
-			const void *kbuf, const void __user *ubuf)
-{
-	unsigned long *fpregs = task_thread_info(target)->fpregs;
-	unsigned long fprs;
-	int ret;
-
-	if (target == current)
-		save_and_clear_fpu();
-
-	fprs = task_thread_info(target)->fpsaved[0];
-
-	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 fpregs,
-				 0, 32 * sizeof(u32));
-	if (!ret)
-		user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
-					  32 * sizeof(u32),
-					  33 * sizeof(u32));
-	if (!ret && count > 0) {
-		compat_ulong_t fsr;
-		unsigned long val;
-
-		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-					 &fsr,
-					 33 * sizeof(u32),
-					 34 * sizeof(u32));
-		if (!ret) {
-			val = task_thread_info(target)->xfsr[0];
-			val &= 0xffffffff00000000UL;
-			val |= fsr;
-			task_thread_info(target)->xfsr[0] = val;
-		}
-	}
-
-	fprs |= (FPRS_FEF | FPRS_DL);
-	task_thread_info(target)->fpsaved[0] = fprs;
-
-	if (!ret)
-		ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
-						34 * sizeof(u32), -1);
-	return ret;
-}
-
-static const struct user_regset sparc32_regsets[] = {
-	/* Format is:
-	 * 	G0 --> G7
-	 *	O0 --> O7
-	 *	L0 --> L7
-	 *	I0 --> I7
-	 *	PSR, PC, nPC, Y, WIM, TBR
-	 */
-	[REGSET_GENERAL] = {
-		.core_note_type = NT_PRSTATUS,
-		.n = 38,
-		.size = sizeof(u32), .align = sizeof(u32),
-		.get = genregs32_get, .set = genregs32_set
-	},
-	/* Format is:
-	 *	F0 --> F31
-	 *	empty 32-bit word
-	 *	FSR (32--bit word)
-	 *	FPU QUEUE COUNT (8-bit char)
-	 *	FPU QUEUE ENTRYSIZE (8-bit char)
-	 *	FPU ENABLED (8-bit char)
-	 *	empty 8-bit char
-	 *	FPU QUEUE (64 32-bit ints)
-	 */
-	[REGSET_FP] = {
-		.core_note_type = NT_PRFPREG,
-		.n = 99,
-		.size = sizeof(u32), .align = sizeof(u32),
-		.get = fpregs32_get, .set = fpregs32_set
-	},
-};
-
-static const struct user_regset_view user_sparc32_view = {
-	.name = "sparc", .e_machine = EM_SPARC,
-	.regsets = sparc32_regsets, .n = ARRAY_SIZE(sparc32_regsets)
-};
-#endif /* CONFIG_COMPAT */
-
-const struct user_regset_view *task_user_regset_view(struct task_struct *task)
-{
-#ifdef CONFIG_COMPAT
-	if (test_tsk_thread_flag(task, TIF_32BIT))
-		return &user_sparc32_view;
-#endif
-	return &user_sparc64_view;
-}
-
-#ifdef CONFIG_COMPAT
-struct compat_fps {
-	unsigned int regs[32];
-	unsigned int fsr;
-	unsigned int flags;
-	unsigned int extra;
-	unsigned int fpqd;
-	struct compat_fq {
-		unsigned int insnaddr;
-		unsigned int insn;
-	} fpq[16];
-};
-
-long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
-			compat_ulong_t caddr, compat_ulong_t cdata)
-{
-	const struct user_regset_view *view = task_user_regset_view(current);
-	compat_ulong_t caddr2 = task_pt_regs(current)->u_regs[UREG_I4];
-	struct pt_regs32 __user *pregs;
-	struct compat_fps __user *fps;
-	unsigned long addr2 = caddr2;
-	unsigned long addr = caddr;
-	unsigned long data = cdata;
-	int ret;
-
-	pregs = (struct pt_regs32 __user *) addr;
-	fps = (struct compat_fps __user *) addr;
-
-	switch (request) {
-	case PTRACE_PEEKUSR:
-		ret = (addr != 0) ? -EIO : 0;
-		break;
-
-	case PTRACE_GETREGS:
-		ret = copy_regset_to_user(child, view, REGSET_GENERAL,
-					  32 * sizeof(u32),
-					  4 * sizeof(u32),
-					  &pregs->psr);
-		if (!ret)
-			ret = copy_regset_to_user(child, view, REGSET_GENERAL,
-						  1 * sizeof(u32),
-						  15 * sizeof(u32),
-						  &pregs->u_regs[0]);
-		break;
-
-	case PTRACE_SETREGS:
-		ret = copy_regset_from_user(child, view, REGSET_GENERAL,
-					    32 * sizeof(u32),
-					    4 * sizeof(u32),
-					    &pregs->psr);
-		if (!ret)
-			ret = copy_regset_from_user(child, view, REGSET_GENERAL,
-						    1 * sizeof(u32),
-						    15 * sizeof(u32),
-						    &pregs->u_regs[0]);
-		break;
-
-	case PTRACE_GETFPREGS:
-		ret = copy_regset_to_user(child, view, REGSET_FP,
-					  0 * sizeof(u32),
-					  32 * sizeof(u32),
-					  &fps->regs[0]);
-		if (!ret)
-			ret = copy_regset_to_user(child, view, REGSET_FP,
-						  33 * sizeof(u32),
-						  1 * sizeof(u32),
-						  &fps->fsr);
-		if (!ret) {
-			if (__put_user(0, &fps->flags) ||
-			    __put_user(0, &fps->extra) ||
-			    __put_user(0, &fps->fpqd) ||
-			    clear_user(&fps->fpq[0], 32 * sizeof(unsigned int)))
-				ret = -EFAULT;
-		}
-		break;
-
-	case PTRACE_SETFPREGS:
-		ret = copy_regset_from_user(child, view, REGSET_FP,
-					    0 * sizeof(u32),
-					    32 * sizeof(u32),
-					    &fps->regs[0]);
-		if (!ret)
-			ret = copy_regset_from_user(child, view, REGSET_FP,
-						    33 * sizeof(u32),
-						    1 * sizeof(u32),
-						    &fps->fsr);
-		break;
-
-	case PTRACE_READTEXT:
-	case PTRACE_READDATA:
-		ret = ptrace_readdata(child, addr,
-				      (char __user *)addr2, data);
-		if (ret == data)
-			ret = 0;
-		else if (ret >= 0)
-			ret = -EIO;
-		break;
-
-	case PTRACE_WRITETEXT:
-	case PTRACE_WRITEDATA:
-		ret = ptrace_writedata(child, (char __user *) addr2,
-				       addr, data);
-		if (ret == data)
-			ret = 0;
-		else if (ret >= 0)
-			ret = -EIO;
-		break;
-
-	default:
-		if (request == PTRACE_SPARC_DETACH)
-			request = PTRACE_DETACH;
-		ret = compat_ptrace_request(child, request, addr, data);
-		break;
-	}
-
-	return ret;
-}
-#endif /* CONFIG_COMPAT */
-
-struct fps {
-	unsigned int regs[64];
-	unsigned long fsr;
-};
-
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
-{
-	const struct user_regset_view *view = task_user_regset_view(current);
-	unsigned long addr2 = task_pt_regs(current)->u_regs[UREG_I4];
-	struct pt_regs __user *pregs;
-	struct fps __user *fps;
-	int ret;
-
-	pregs = (struct pt_regs __user *) (unsigned long) addr;
-	fps = (struct fps __user *) (unsigned long) addr;
-
-	switch (request) {
-	case PTRACE_PEEKUSR:
-		ret = (addr != 0) ? -EIO : 0;
-		break;
-
-	case PTRACE_GETREGS64:
-		ret = copy_regset_to_user(child, view, REGSET_GENERAL,
-					  1 * sizeof(u64),
-					  15 * sizeof(u64),
-					  &pregs->u_regs[0]);
-		if (!ret) {
-			/* XXX doesn't handle 'y' register correctly XXX */
-			ret = copy_regset_to_user(child, view, REGSET_GENERAL,
-						  32 * sizeof(u64),
-						  4 * sizeof(u64),
-						  &pregs->tstate);
-		}
-		break;
-
-	case PTRACE_SETREGS64:
-		ret = copy_regset_from_user(child, view, REGSET_GENERAL,
-					    1 * sizeof(u64),
-					    15 * sizeof(u64),
-					    &pregs->u_regs[0]);
-		if (!ret) {
-			/* XXX doesn't handle 'y' register correctly XXX */
-			ret = copy_regset_from_user(child, view, REGSET_GENERAL,
-						    32 * sizeof(u64),
-						    4 * sizeof(u64),
-						    &pregs->tstate);
-		}
-		break;
-
-	case PTRACE_GETFPREGS64:
-		ret = copy_regset_to_user(child, view, REGSET_FP,
-					  0 * sizeof(u64),
-					  33 * sizeof(u64),
-					  fps);
-		break;
-
-	case PTRACE_SETFPREGS64:
-		ret = copy_regset_from_user(child, view, REGSET_FP,
-					  0 * sizeof(u64),
-					  33 * sizeof(u64),
-					  fps);
-		break;
-
-	case PTRACE_READTEXT:
-	case PTRACE_READDATA:
-		ret = ptrace_readdata(child, addr,
-				      (char __user *)addr2, data);
-		if (ret == data)
-			ret = 0;
-		else if (ret >= 0)
-			ret = -EIO;
-		break;
-
-	case PTRACE_WRITETEXT:
-	case PTRACE_WRITEDATA:
-		ret = ptrace_writedata(child, (char __user *) addr2,
-				       addr, data);
-		if (ret == data)
-			ret = 0;
-		else if (ret >= 0)
-			ret = -EIO;
-		break;
-
-	default:
-		if (request == PTRACE_SPARC_DETACH)
-			request = PTRACE_DETACH;
-		ret = ptrace_request(child, request, addr, data);
-		break;
-	}
-
-	return ret;
-}
-
-asmlinkage int syscall_trace_enter(struct pt_regs *regs)
-{
-	int ret = 0;
-
-	/* do the secure computing check first */
-	secure_computing(regs->u_regs[UREG_G1]);
-
-	if (test_thread_flag(TIF_SYSCALL_TRACE))
-		ret = tracehook_report_syscall_entry(regs);
-
-	if (unlikely(current->audit_context) && !ret)
-		audit_syscall_entry((test_thread_flag(TIF_32BIT) ?
-				     AUDIT_ARCH_SPARC :
-				     AUDIT_ARCH_SPARC64),
-				    regs->u_regs[UREG_G1],
-				    regs->u_regs[UREG_I0],
-				    regs->u_regs[UREG_I1],
-				    regs->u_regs[UREG_I2],
-				    regs->u_regs[UREG_I3]);
-
-	return ret;
-}
-
-asmlinkage void syscall_trace_leave(struct pt_regs *regs)
-{
-	if (unlikely(current->audit_context)) {
-		unsigned long tstate = regs->tstate;
-		int result = AUDITSC_SUCCESS;
-
-		if (unlikely(tstate & (TSTATE_XCARRY | TSTATE_ICARRY)))
-			result = AUDITSC_FAILURE;
-
-		audit_syscall_exit(result, regs->u_regs[UREG_I0]);
-	}
-
-	if (test_thread_flag(TIF_SYSCALL_TRACE))
-		tracehook_report_syscall_exit(regs, 0);
-}