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authorGerald Schaefer <geraldsc@de.ibm.com>2006-09-20 15:59:42 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2006-09-20 15:59:42 +0200
commitd02765d1af743567398eb6d523dea0ba5e5e7e8e (patch)
tree9a39c21d9924a8d81ce85254cd3d013dbe50d23e /arch/s390/kernel
parent6837a8c352efcc5efc70424e9bfd94ff9bfa9a47 (diff)
[S390] Make user-copy operations run-time configurable.
Introduces a struct uaccess_ops which allows setting user-copy operations at run-time. Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/s390_ksyms.c6
-rw-r--r--arch/s390/kernel/setup.c7
2 files changed, 7 insertions, 6 deletions
diff --git a/arch/s390/kernel/s390_ksyms.c b/arch/s390/kernel/s390_ksyms.c
index c73a45467fa4..9f19e833a562 100644
--- a/arch/s390/kernel/s390_ksyms.c
+++ b/arch/s390/kernel/s390_ksyms.c
@@ -25,12 +25,6 @@ EXPORT_SYMBOL(_oi_bitmap);
EXPORT_SYMBOL(_ni_bitmap);
EXPORT_SYMBOL(_zb_findmap);
EXPORT_SYMBOL(_sb_findmap);
-EXPORT_SYMBOL(__copy_from_user_asm);
-EXPORT_SYMBOL(__copy_to_user_asm);
-EXPORT_SYMBOL(__copy_in_user_asm);
-EXPORT_SYMBOL(__clear_user_asm);
-EXPORT_SYMBOL(__strncpy_from_user_asm);
-EXPORT_SYMBOL(__strnlen_user_asm);
EXPORT_SYMBOL(diag10);
/*
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index f2a9165ca4f8..e229af59976c 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -51,6 +51,12 @@
#include <asm/sections.h>
/*
+ * User copy operations.
+ */
+struct uaccess_ops uaccess;
+EXPORT_SYMBOL_GPL(uaccess);
+
+/*
* Machine setup..
*/
unsigned int console_mode = 0;
@@ -641,6 +647,7 @@ setup_arch(char **cmdline_p)
memory_end = memory_size;
+ memcpy(&uaccess, &uaccess_std, sizeof(uaccess));
parse_early_param();
#ifndef CONFIG_64BIT