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Subject[GIT PULL] arm64 fixes for 4.14-rc3
Hi Linus,

Please pull the arm64 fixes below. Thanks.

The following changes since commit e19b205be43d11bff638cad4487008c48d21c103:

Linux 4.14-rc2 (2017-09-24 16:38:56 -0700)

are available in the git repository at:

git:// tags/arm64-fixes

for you to fetch changes up to 760bfb47c36a07741a089bf6a28e854ffbee7dc9:

arm64: fault: Route pte translation faults via do_translation_fault (2017-09-29 16:47:40 +0100)

arm64 fixes:

- SPsel register initialisation on reset as the architecture defines its
state as unknown

- Use READ_ONCE when dereferencing pmd_t pointers to avoid race
conditions in page_vma_mapped_walk() (or fast GUP) with concurrent
modifications of the page table

- Avoid invoking the mm fault handling code for kernel addresses (check
against TASK_SIZE) which would otherwise result in calling
might_sleep() in atomic context

Marc Zyngier (1):
arm64: Make sure SPsel is always set

Will Deacon (2):
arm64: mm: Use READ_ONCE when dereferencing pointer to pte table
arm64: fault: Route pte translation faults via do_translation_fault

arch/arm64/include/asm/pgtable.h | 2 +-
arch/arm64/kernel/head.S | 1 +
arch/arm64/mm/fault.c | 2 +-
3 files changed, 3 insertions(+), 2 deletions(-)


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