Messages in this thread | | | Subject | Re: [PATCH] x86, powerpc : pkey-mprotect must allow pkey-0 | From | Dave Hansen <> | Date | Mon, 12 Mar 2018 08:46:04 -0700 |
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On 03/09/2018 12:06 PM, Ram Pai wrote: > On Fri, Mar 09, 2018 at 09:19:53PM +1100, Michael Ellerman wrote: >> Ram Pai <linuxram@us.ibm.com> writes: >> >>> Once an address range is associated with an allocated pkey, it cannot be >>> reverted back to key-0. There is no valid reason for the above behavior. On >>> the contrary applications need the ability to do so. >> Please explain this in much more detail. Is it an ABI change? > Not necessarily an ABI change. older binary applications will continue > to work. It can be considered as a bug-fix.
Yeah, agreed. I do not think this is an ABI change.
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