Richard Weinberger 4fdaa3d479 um: Implement probe_kernel_read() ...

commit f75b1b1bedfb498cc43a992ce4d7ed8df3b1e770 upstream.

UML needs it's own probe_kernel_read() to handle kernel
mode faults correctly.
The implementation uses mincore() on the host side to detect
whether a page is owned by the UML kernel process.

This fixes also a possible crash when sysrq-t is used.
Starting with 3.10 sysrq-t calls probe_kernel_read() to
read details from the kernel workers. As kernel worker are
completely async pointers may turn NULL while reading them.

Signed-off-by: Richard Weinberger <richard@nod.at>
Cc: <stian@nixia.no>
Cc: <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2013-09-26 17:18:29 -07:00

..

alpha

Removal of GENERIC_GPIO for v3.10

2013-05-09 09:59:16 -07:00

arc

ARC: [lib] strchr breakage in Big-endian configuration

2013-08-29 09:47:34 -07:00

arm

ARM: PCI: versatile: Fix SMAP register offsets

2013-09-26 17:18:03 -07:00

arm64

arm64: perf: fix ARMv8 EVTYPE_MASK to include NSH bit

2013-09-26 17:18:03 -07:00

avr32

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32

2013-05-22 18:06:57 -07:00

blackfin

blackfin updates for Linux 3.10

2013-05-10 07:21:16 -07:00

c6x

arch: c6x: mm: include "asm/uaccess.h" to pass compiling

2013-07-21 18:21:29 -07:00

cris

- Lots of cleanups from Artem, including deletion of some obsolete drivers

2013-05-09 10:15:46 -07:00

frv

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2013-05-01 14:08:52 -07:00

h8300

We get rid of the general module prefix confusion with a binary config option,

2013-05-05 10:58:06 -07:00

hexagon

Removal of GENERIC_GPIO for v3.10

2013-05-09 09:59:16 -07:00

ia64

Fix TLB gather virtual address range invalidation corner cases

2013-08-20 08:43:05 -07:00

m32r

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2013-05-01 14:08:52 -07:00

m68k

m68k/atari: ARAnyM - Fix NatFeat module support

2013-08-20 08:43:05 -07:00

metag

metag: fix mm/hugetlb.c build breakage

2013-06-19 06:23:34 -10:00

microblaze

microblaze: fix clone syscall

2013-08-20 08:43:02 -07:00

mips

MIPS: ath79: Fix ar933x watchdog clock

2013-09-26 17:18:27 -07:00

mn10300

mn10300: Use early_param() to parse "mem=" parameter

2013-06-28 16:53:03 +01:00

openrisc

Removal of GENERIC_GPIO for v3.10

2013-05-09 09:59:16 -07:00

parisc

parisc: Fix interrupt routing for C8000 serial ports

2013-08-11 18:35:21 -07:00

powerpc

KVM: PPC: Book3S: Fix compile error in XICS emulation

2013-09-26 17:18:03 -07:00

s390

KVM: s390: move kvm_guest_enter,exit closer to sie

2013-08-29 09:47:28 -07:00

score

score: remove redundant kcore_list entries

2013-05-25 10:27:27 -07:00

sh

Fix TLB gather virtual address range invalidation corner cases

2013-08-20 08:43:05 -07:00

sparc

sparc32: vm_area_struct access for old Sun SPARCs.

2013-07-28 16:29:41 -07:00

tile

tilepro: work around module link error with gcc 4.7

2013-06-15 16:47:47 -04:00

um

um: Implement probe_kernel_read()

2013-09-26 17:18:29 -07:00

unicore32

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

2013-05-10 09:21:05 -07:00

x86

sched/x86: Optimize switch_mm() for multi-threaded workloads

2013-09-26 17:18:14 -07:00

xtensa

xtensa: adjust boot parameters address when INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX is selected

2013-07-25 14:07:42 -07:00

.gitignore

…

Kconfig

microblaze: fix clone syscall

2013-08-20 08:43:02 -07:00