On 11 March 2016 at 05:07, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, 10 Mar 2016 21:43:12 +0700 Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> wrote:
[...]
>> ---- v2 blurb ----
>> There are currently four architectures (x86, ia64, alpha and s390) whose
>> user-access exception tables are relative to the table entry address rather
>> than absolute. Each of these architectures has its own search_extable() and
>> sort_extable() implementation, which are not only mostly identical to each
>> other, but also deviate very little from the generic absolute implementations
>> in lib/extable.c that they override.
>>
>> So before making arm64 the fifth architecture that reimplements this, let's
>> refactor the existing code so that all of these architectures use common code
>> for searching and sorting the relative extables. Archs may set
>> ARCH_HAS_RELATIVE_EXTABLE to indicate that the table consists of a pair of
>> relative ints, and may define swap_ex_entry_fixup() if the fixup member needs
>> special treatment in the swapping step of the sorting routine (such as alpha).
>>
>
> I'll want to manually verify that the required patches are upstreamed.
> I assume we're referring to a272858a3c1ecd4a ("extable: add support for
> relative extables to search and sort routines") and related patches?
>
Correct. As long as that single patch is in, these are good to go.
Thanks,
Ard.
--
To unsubscribe from this list: send the line "unsubscribe linux-s390" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
