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authorHeiko Carstens <heiko.carstens@de.ibm.com>2014-01-13 13:35:16 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2014-01-13 16:50:21 +0100
commit075dfd82102d2048e43e1cbf48d558d915c50072 (patch)
treefdefc5e46750720a2ff0704bf3d18a5d6b1607d7
parent91f3e3eaba4413e76ce8e12e3ef10525a889142f (diff)
s390/compat: fix PSW32_USER_BITS definition
PSW32_USER_BITS should define the primary address space for user space instead of the home address space. Symptom of this bug is that gdb doesn't work in compat mode. The bug was introduced with e258d719ff28 "s390/uaccess: always run the kernel in home space" and f26946d7ecad "s390/compat: make psw32_user_bits a constant value again". Cc: stable@vger.kernel.org # v3.13+ Reported-by: Andreas Arnez <arnez@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
-rw-r--r--arch/s390/include/asm/compat.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 4bf9da03591e..5d7e8cf83bd6 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -38,7 +38,8 @@
#define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \
PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \
- PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | PSW32_ASC_HOME)
+ PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | \
+ PSW32_ASC_PRIMARY)
#define COMPAT_USER_HZ 100
#define COMPAT_UTS_MACHINE "s390\0\0\0\0"