Linux 4.10-rc1 - net-next.git - net-next plumbings

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author	Linus Torvalds <torvalds@linux-foundation.org>	2016-12-25 16:13:08 -0800
committer	Linus Torvalds <torvalds@linux-foundation.org>	2016-12-25 16:13:08 -0800
commit	7ce7d89f48834cefece7804d38fc5d85382edf77 (patch)
tree	a7650ab5c0fa3a6a3841de8e8693041b3e009054 /include/acpi/apei.h
parent	8ae679c4bc2ea2d16d92620da8e3e9332fa4039f (diff)

Linux 4.10-rc1

Diffstat (limited to 'include/acpi/apei.h')

0 files changed, 0 insertions, 0 deletions

t-msg'>When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

Diffstat (limited to 'include/crypto/vmac.h')


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