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authorAl Viro <viro@zeniv.linux.org.uk>2016-12-26 00:48:37 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2017-03-28 18:23:55 -0400
commite70f1d59be747a959c240bf2fe2ea9489b629496 (patch)
tree58f770df4f007d4e3e9da6f95195b46e7cb9ba3b /arch/s390/include/asm
parentgeneric ...copy_..._user primitives (diff)
downloadlinux-dev-e70f1d59be747a959c240bf2fe2ea9489b629496.tar.xz
linux-dev-e70f1d59be747a959c240bf2fe2ea9489b629496.zip
s390: switch to extable.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/s390/include/asm')
-rw-r--r--arch/s390/include/asm/extable.h28
-rw-r--r--arch/s390/include/asm/uaccess.h26
2 files changed, 29 insertions, 25 deletions
diff --git a/arch/s390/include/asm/extable.h b/arch/s390/include/asm/extable.h
new file mode 100644
index 000000000000..16cfe2d62eeb
--- /dev/null
+++ b/arch/s390/include/asm/extable.h
@@ -0,0 +1,28 @@
+#ifndef __S390_EXTABLE_H
+#define __S390_EXTABLE_H
+/*
+ * The exception table consists of pairs of addresses: the first is the
+ * address of an instruction that is allowed to fault, and the second is
+ * the address at which the program should continue. No registers are
+ * modified, so it is entirely up to the continuation code to figure out
+ * what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path. This means when everything is well,
+ * we don't even have to jump over them. Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+
+struct exception_table_entry
+{
+ int insn, fixup;
+};
+
+static inline unsigned long extable_fixup(const struct exception_table_entry *x)
+{
+ return (unsigned long)&x->fixup + x->fixup;
+}
+
+#define ARCH_HAS_RELATIVE_EXTABLE
+
+#endif
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index 7228ed8da67d..29f5bf24e5fa 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -14,6 +14,7 @@
*/
#include <asm/processor.h>
#include <asm/ctl_reg.h>
+#include <asm/extable.h>
/*
@@ -59,31 +60,6 @@ static inline int __range_ok(unsigned long addr, unsigned long size)
#define access_ok(type, addr, size) __access_ok(addr, size)
-/*
- * The exception table consists of pairs of addresses: the first is the
- * address of an instruction that is allowed to fault, and the second is
- * the address at which the program should continue. No registers are
- * modified, so it is entirely up to the continuation code to figure out
- * what to do.
- *
- * All the routines below use bits of fixup code that are out of line
- * with the main instruction path. This means when everything is well,
- * we don't even have to jump over them. Further, they do not intrude
- * on our cache or tlb entries.
- */
-
-struct exception_table_entry
-{
- int insn, fixup;
-};
-
-static inline unsigned long extable_fixup(const struct exception_table_entry *x)
-{
- return (unsigned long)&x->fixup + x->fixup;
-}
-
-#define ARCH_HAS_RELATIVE_EXTABLE
-
/**
* __copy_from_user: - Copy a block of data from user space, with less checking.
* @to: Destination address, in kernel space.