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authorMadhavan Srinivasan <maddy@linux.vnet.ibm.com>2017-08-20 23:28:24 +0530
committerMichael Ellerman <mpe@ellerman.id.au>2018-01-19 22:36:54 +1100
commita8a4b03ab95f3e99196b0a4dd40804620ea77e74 (patch)
tree210d0a819712c7301180bdf862d56f09d41bb12c /arch/powerpc/mm
parent7a074fc08389f43b448ebef74bf56ba0f6f087d9 (diff)
powerpc: Hard wire PT_SOFTE value to 1 in ptrace & signals
We have always had softe in pt_regs, and accessible via PT_SOFTE, even though it is not userspace state. The value userspace sees should always be 1, because we should never be in userspace with interrupts soft disabled. In a subsequent patch we will be changing the semantics of the kernel softe value, so hard wire the value to 1 to retain the existing semantics. As far as we know nothing ever looks at it, but better safe than sorry. Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> [mpe: Split out of larger patch, write change log] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm')
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