Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (21 commits)
  [S390] dasd: fix race condition in resume code
  [S390] Add EX_TABLE for addressing exception in usercopy functions.
  [S390] 64-bit register support for 31-bit processes
  [S390] hibernate: Use correct place for CPU address in lowcore
  [S390] pm: ignore time spend in suspended state
  [S390] zcrypt: Improve some comments
  [S390] zcrypt: Fix sparse warning.
  [S390] perf_counter: fix vdso detection
  [S390] ftrace: drop nmi protection
  [S390] compat: fix truncate system call wrapper
  [S390] Provide arch specific mdelay implementation.
  [S390] Fix enabled udelay for short delays.
  [S390] cio: allow setting boxed devices offline
  [S390] cio: make not operational handling consistent
  [S390] cio: make disconnected handling consistent
  [S390] Fix memory leak in /proc/cio_ignore
  [S390] cio: channel path memory leak
  [S390] module: fix memory leak in s390 module loader
  [S390] Enable kmemleak on s390.
  [S390] 3270 console build fix
  ...

1 files changed, 70 insertions, 0 deletions

diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index a8738676b26c..653c6a178740 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -57,6 +57,7 @@
 enum s390_regset {
 	REGSET_GENERAL,
 	REGSET_FP,
+	REGSET_GENERAL_EXTENDED,
 };
 
 static void
@@ -879,6 +880,67 @@ static int s390_compat_regs_set(struct task_struct *target,
 	return rc;
 }
 
+static int s390_compat_regs_high_get(struct task_struct *target,
+				     const struct user_regset *regset,
+				     unsigned int pos, unsigned int count,
+				     void *kbuf, void __user *ubuf)
+{
+	compat_ulong_t *gprs_high;
+
+	gprs_high = (compat_ulong_t *)
+		&task_pt_regs(target)->gprs[pos / sizeof(compat_ulong_t)];
+	if (kbuf) {
+		compat_ulong_t *k = kbuf;
+		while (count > 0) {
+			*k++ = *gprs_high;
+			gprs_high += 2;
+			count -= sizeof(*k);
+		}
+	} else {
+		compat_ulong_t __user *u = ubuf;
+		while (count > 0) {
+			if (__put_user(*gprs_high, u++))
+				return -EFAULT;
+			gprs_high += 2;
+			count -= sizeof(*u);
+		}
+	}
+	return 0;
+}
+
+static int s390_compat_regs_high_set(struct task_struct *target,
+				     const struct user_regset *regset,
+				     unsigned int pos, unsigned int count,
+				     const void *kbuf, const void __user *ubuf)
+{
+	compat_ulong_t *gprs_high;
+	int rc = 0;
+
+	gprs_high = (compat_ulong_t *)
+		&task_pt_regs(target)->gprs[pos / sizeof(compat_ulong_t)];
+	if (kbuf) {
+		const compat_ulong_t *k = kbuf;
+		while (count > 0) {
+			*gprs_high = *k++;
+			*gprs_high += 2;
+			count -= sizeof(*k);
+		}
+	} else {
+		const compat_ulong_t  __user *u = ubuf;
+		while (count > 0 && !rc) {
+			unsigned long word;
+			rc = __get_user(word, u++);
+			if (rc)
+				break;
+			*gprs_high = word;
+			*gprs_high += 2;
+			count -= sizeof(*u);
+		}
+	}
+
+	return rc;
+}
+
 static const struct user_regset s390_compat_regsets[] = {
 	[REGSET_GENERAL] = {
 		.core_note_type = NT_PRSTATUS,
@@ -896,6 +958,14 @@ static const struct user_regset s390_compat_regsets[] = {
 		.get = s390_fpregs_get,
 		.set = s390_fpregs_set,
 	},
+	[REGSET_GENERAL_EXTENDED] = {
+		.core_note_type = NT_PRXSTATUS,
+		.n = sizeof(s390_compat_regs_high) / sizeof(compat_long_t),
+		.size = sizeof(compat_long_t),
+		.align = sizeof(compat_long_t),
+		.get = s390_compat_regs_high_get,
+		.set = s390_compat_regs_high_set,
+	},
 };
 
 static const struct user_regset_view user_s390_compat_view = {