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SubjectRe: [PATCH 5/5] x86/kernel: jump_table: use relative references
On 28 June 2018 at 10:31, Peter Zijlstra <peterz@infradead.org> wrote:
> On Wed, Jun 27, 2018 at 06:06:04PM +0200, Ard Biesheuvel wrote:
>> Similar to the arm64 case, 64-bit x86 can benefit from using 32-bit
>> relative references rather than 64-bit absolute ones when emitting
>> struct jump_entry instances. Not only does this reduce the memory
>> footprint of the entries themselves by 50%, it also removes the need
>> for carrying relocation metadata on relocatable builds (i.e., for KASLR)
>> which saves a fair chunk of .init space as well (although the savings
>> are not as dramatic as on arm64)
>
> This will conflict with:
>
> https://lkml.kernel.org/r/20180622172212.199633-10-namit@vmware.com

Thanks for the head's up. Fortunately, it does not conflict
fundamentally, so it should be a straight-forward rebase after that
code is merged.

Do you think this is likely to get merged for v4.19?

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