linux-stable/arch/s390
Martin Schwidefsky 127581b64b s390/mm: handle asce-type exceptions as normal page fault
Git commit 9e34f2686bb088b211b6cac8772e1f644c6180f8
"s390/mm,tlb: tlb flush on page table upgrade fixup" removed the
exception handler for the asce-type exception. This is incorrect
as the user-copy with MVCOS can cause asce-type exceptions in
the kernel if a user pointer is too large. Those need to be
handled with do_no_context to branch to the fixup in the
user-copy code.

The simplest fix for this problem is to call do_dat_exception for
asce-type excpetions, as there is no vma for the address the code
will handle the exception correctly.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-25 09:15:42 +01:00
..
appldata s390: convert use of typedef ctl_table to struct ctl_table 2013-10-28 08:36:25 +01:00
boot s390/boot: Install bzImage as default kernel image 2013-11-15 14:08:36 +01:00
configs s390: add a couple of useful defconfigs 2013-10-24 17:17:14 +02:00
crypto s390/crypto: fix aes_s390 crypto module unload problem 2013-10-24 17:17:10 +02:00
hypfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-09-05 08:50:26 -07:00
include s390/time,vdso: convert to the new update_vsyscall interface 2013-11-25 09:15:39 +01:00
kernel s390/mm: handle asce-type exceptions as normal page fault 2013-11-25 09:15:42 +01:00
kvm Here are the 3.13 KVM changes. There was a lot of work on the PPC 2013-11-15 13:51:36 +09:00
lib s390/uaccess: add missing page table walk range check 2013-11-25 09:15:38 +01:00
math-emu s390: fix save and restore of the floating-point-control register 2013-10-24 17:17:11 +02:00
mm s390: handle pgtable_page_ctor() fail 2013-11-15 09:32:18 +09:00
net s390/bpf,jit: fix prolog oddity 2013-10-24 17:16:59 +02:00
oprofile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2013-09-11 08:36:03 -07:00
pci s390/pci: implement hotplug notifications 2013-11-15 14:08:42 +01:00
defconfig Update default configuration 2013-10-24 17:17:15 +02:00
Kbuild s390/pci: base support 2012-11-30 15:40:45 +01:00
Kconfig s390/time,vdso: convert to the new update_vsyscall interface 2013-11-25 09:15:39 +01:00
Kconfig.debug Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS 2013-04-30 17:04:09 -07:00
Makefile s390: allow to set gcc -mtune flag 2013-10-31 09:54:01 +01:00