Messages in this thread | | | Date | Tue, 10 Jul 2018 10:51:13 -0400 (EDT) | From | Mathieu Desnoyers <> | Subject | Re: [PATCH v2 0/3] Support rseq on arm64 |
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----- On Jul 10, 2018, at 10:49 AM, Will Deacon will.deacon@arm.com wrote:
> On Mon, Jul 09, 2018 at 01:17:54PM -0400, Mathieu Desnoyers wrote: >> ----- On Jul 9, 2018, at 12:53 PM, Will Deacon will.deacon@arm.com wrote: >> >> > On Mon, Jul 09, 2018 at 12:06:22PM -0400, Mathieu Desnoyers wrote: >> >> ----- On Jul 9, 2018, at 10:19 AM, Will Deacon will.deacon@arm.com wrote: >> >> >> >> > Hello, >> >> > >> >> > This is version two of the patches previously posted here: >> >> > >> >> > http://lkml.kernel.org/r/1529949285-11013-1-git-send-email-will.deacon@arm.com >> >> > >> >> > Changes since v1 include: >> >> > >> >> > * Move abort handler in-line to avoid possibility of it being >> >> > out-of-range for conditional branch instructions >> >> > >> >> > I've tested both native and compat (little-endian only) with the selftests >> >> > and they pass successfully on my Seattle box. >> >> >> >> For the whole series: >> >> >> >> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> >> > >> > Thanks, Mathieu! Are you ok with me taking this via the arm64 tree for >> > 4.19 once I have an Ack for the asm-generic change, or would you rather >> > this went via somewhere else? >> >> Adding Thomas Gleixner in CC. He has been picking up the rseq bits for >> 4.18. I've noticed it was rather easier to gather rseq stuff through a >> single tree (less chances of confusion). > > Whilst I can see that making some sense for the selftests (particularly > if the ABI is liable to further changes before 4.18 is released), I'd > prefer to take the arm64 bits via the arm64 tree, as they will conflict > with some ongoing work to rewrite the syscall entry path in C which I > plan to queue in the next week (pending final testing results).
Considering this, indeed going through the arm64 tree seems like the right approach.
> >> Also, support for additional architectures (e.g. MIPS) was added to rseq >> after rc1. Is it too late to merge arm64 support targeting 4.18 ? > > Personally, I don't see the rush, but I won't stop anybody who wants to > try steam-rollering them into mainline ;)
There is indeed no rush. 4.19 it is then.
Thanks!
Mathieu
-- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com
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