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Julien Thierry 0bd3ef34d2 arm64: uaccess: Implement unsafe accessors 
Current implementation of get/put_user_unsafe default to get/put_user
which toggle PAN before each access, despite having been told by the caller
that multiple accesses to user memory were about to happen.

Provide implementations for user_access_begin/end to turn PAN off/on and
implement unsafe accessors that assume PAN was already turned off.

Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
 		2019-01-25 12:30:48 +00:00
..
alpha Kbuild late updates for v4.21 2019-01-06 16:33:10 -08:00
arc arch: remove redundant UAPI generic-y defines 2019-01-06 10:22:15 +09:00
arm Late reset controller changes for v5.0 2019-01-12 22:06:54 -08:00
arm64 arm64: uaccess: Implement unsafe accessors 2019-01-25 12:30:48 +00:00
c6x arch: restore generic-y += shmparam.h for some architectures 2019-01-06 18:16:11 -08:00
csky csky: fixup compile error with CPU 810. 2019-01-10 04:37:37 -08:00
h8300 kbuild: remove unused archmrproper 2019-01-16 23:31:17 +09:00
hexagon arch: restore generic-y += shmparam.h for some architectures 2019-01-06 18:16:11 -08:00
ia64 ia64: remove redundant 'export AWK' 2019-01-16 23:31:18 +09:00
m68k arch: restore generic-y += shmparam.h for some architectures 2019-01-06 18:16:11 -08:00
microblaze arch: restore generic-y += shmparam.h for some architectures 2019-01-06 18:16:11 -08:00
mips A few MIPS fixes for 5.0: 2019-01-20 10:33:18 +12:00
nds32 nds32: remove unneeded code in arch/nds32/Makefile 2019-01-17 23:42:37 +09:00
nios2 arch: remove redundant UAPI generic-y defines 2019-01-06 10:22:15 +09:00
openrisc openrisc: remove unneeded code in arch/openrisc/Makefile 2019-01-17 23:42:59 +09:00
parisc arch: remove redundant UAPI generic-y defines 2019-01-06 10:22:15 +09:00
powerpc A single build fix for powerpc due to device_node.type removal 2019-01-20 10:28:46 +12:00
riscv Fix a handful of audit-related issue 2019-01-07 08:45:47 -08:00
s390 Kbuild late updates for v4.21 2019-01-06 16:33:10 -08:00
sh Kbuild late updates for v4.21 2019-01-06 16:33:10 -08:00
sparc arch: remove redundant UAPI generic-y defines 2019-01-06 10:22:15 +09:00
um Merge branch 'akpm' (patches from Andrew) 2019-01-05 09:16:18 -08:00
unicore32 arch: restore generic-y += shmparam.h for some architectures 2019-01-06 18:16:11 -08:00
x86 x86: uaccess: Inhibit speculation past access_ok() in user_access_begin() 2019-01-20 15:33:22 +12:00
xtensa arch: remove redundant UAPI generic-y defines 2019-01-06 10:22:15 +09:00
.gitignore
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Kconfig jump_label: move 'asm goto' support test to Kconfig 2019-01-06 09:46:51 +09:00