From f9eead8d768c103ec04b0c270a21544c7211ebcf Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 13:31:47 +0100
Subject: [PATCH] --- yaml --- r: 80058 b: refs/heads/master c:
 5bde4d181793be84351bc21c256d8c71cfcd313a h: refs/heads/master v: v3

---
 [refs]                       |  2 +-
 trunk/include/linux/regset.h | 46 ++++++++++++++++++++++++++++++++++++
 2 files changed, 47 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index e54480b49fa5..404d65cc06e2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b9d36d5d000294a128f7f174fe67623a10e29d61
+refs/heads/master: 5bde4d181793be84351bc21c256d8c71cfcd313a
diff --git a/trunk/include/linux/regset.h b/trunk/include/linux/regset.h
index 761c931af975..8abee6556223 100644
--- a/trunk/include/linux/regset.h
+++ b/trunk/include/linux/regset.h
@@ -318,5 +318,51 @@ static inline int user_regset_copyin_ignore(unsigned int *pos,
 	return 0;
 }
 
+/**
+ * copy_regset_to_user - fetch a thread's user_regset data into user memory
+ * @target:	thread to be examined
+ * @view:	&struct user_regset_view describing user thread machine state
+ * @setno:	index in @view->regsets
+ * @offset:	offset into the regset data, in bytes
+ * @size:	amount of data to copy, in bytes
+ * @data:	user-mode pointer to copy into
+ */
+static inline int copy_regset_to_user(struct task_struct *target,
+				      const struct user_regset_view *view,
+				      unsigned int setno,
+				      unsigned int offset, unsigned int size,
+				      void __user *data)
+{
+	const struct user_regset *regset = &view->regsets[setno];
+
+	if (!access_ok(VERIFY_WRITE, data, size))
+		return -EIO;
+
+	return regset->get(target, regset, offset, size, NULL, data);
+}
+
+/**
+ * copy_regset_from_user - store into thread's user_regset data from user memory
+ * @target:	thread to be examined
+ * @view:	&struct user_regset_view describing user thread machine state
+ * @setno:	index in @view->regsets
+ * @offset:	offset into the regset data, in bytes
+ * @size:	amount of data to copy, in bytes
+ * @data:	user-mode pointer to copy from
+ */
+static inline int copy_regset_from_user(struct task_struct *target,
+					const struct user_regset_view *view,
+					unsigned int setno,
+					unsigned int offset, unsigned int size,
+					const void __user *data)
+{
+	const struct user_regset *regset = &view->regsets[setno];
+
+	if (!access_ok(VERIFY_READ, data, size))
+		return -EIO;
+
+	return regset->set(target, regset, offset, size, NULL, data);
+}
+
 
 #endif	/* <linux/regset.h> */