From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Schwidefsky Subject: Re: [PATCHv2 0/2] THREAD_INFO_IN_TASK prep work for arm64+s390 Date: Fri, 11 Nov 2016 16:42:37 +0100 Message-ID: <20161111164237.1f381e57@mschwide> References: <1477503787-25537-1-git-send-email-mark.rutland@arm.com> <20161102155020.GA17547@remoulade> <20161110181307.GC10137@leverpostej> <20161111091622.GA4019@osiris> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20161111091622.GA4019@osiris> Sender: linux-kernel-owner@vger.kernel.org To: Heiko Carstens Cc: Mark Rutland , catalin.marinas@arm.com, linux-arch@vger.kernel.org, akpm@linux-foundation.org, keescook@chromium.org, luto@kernel.org, linux-kernel@vger.kernel.org List-Id: linux-arch.vger.kernel.org On Fri, 11 Nov 2016 10:16:22 +0100 Heiko Carstens wrote: > Hi Mark, > > > On Wed, Nov 02, 2016 at 03:56:26PM +0000, Mark Rutland wrote: > > > On Wed, Oct 26, 2016 at 06:43:05PM +0100, Mark Rutland wrote: > > > > Heiko and I have been working on THREAD_INFO_IN_TASK for s390 and arm64 > > > > respectively, and we're both targetting v4.10. > > > > > > > > These are the common core changes which we both require. I've put together a > > > > branch [1,2] based on v4.9-rc2. I intend to tag this at some point next week so > > > > that Heiko and I have a stable base. > > > > > > As a heads-up, I've collated the tags I've received in the last few days, along > > > with the comment Andy requested in the v1 thread, and tagged this as > > > core-ti-stack-split [1]. > > > > > > Thanks, > > > Mark. > > > > > > [1] git://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git core-ti-stack-split > > > > I believe that Catalin's hoping to take my arm64 patches for v4.10, > > using the above tag as a base. > > > > What's the plan for s390? Are you happy to do the same? > > We intend to merge the s390 variant also for v4.10. Our approach has > changed however: we came to the conclusion that having a per-cpu preempt > count will generate better code on s390; so Martin implemented that. > > And while being at it he also moved the rest of the s390 specific stuff out > of our struct thread_info. The corresponding patches will be pushed to > > git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git features > > branch soon. > > In result we will have a struct thread_info that only contains the flags > field like x86 does. > So we don't depend an any other patches anymore... Just pushed our collected works to the features branch, in case you are interested. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin. 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Violators will be prosecuted for from ; Fri, 11 Nov 2016 15:42:43 -0000 Date: Fri, 11 Nov 2016 16:42:37 +0100 From: Martin Schwidefsky Subject: Re: [PATCHv2 0/2] THREAD_INFO_IN_TASK prep work for arm64+s390 In-Reply-To: <20161111091622.GA4019@osiris> References: <1477503787-25537-1-git-send-email-mark.rutland@arm.com> <20161102155020.GA17547@remoulade> <20161110181307.GC10137@leverpostej> <20161111091622.GA4019@osiris> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Message-ID: <20161111164237.1f381e57@mschwide> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Heiko Carstens Cc: Mark Rutland , catalin.marinas@arm.com, linux-arch@vger.kernel.org, akpm@linux-foundation.org, keescook@chromium.org, luto@kernel.org, linux-kernel@vger.kernel.org Message-ID: <20161111154237.LMFTjXVwalvSTJ9lqrkFyIqlBCo7Irs4I3ybe0vBXiE@z> On Fri, 11 Nov 2016 10:16:22 +0100 Heiko Carstens wrote: > Hi Mark, > > > On Wed, Nov 02, 2016 at 03:56:26PM +0000, Mark Rutland wrote: > > > On Wed, Oct 26, 2016 at 06:43:05PM +0100, Mark Rutland wrote: > > > > Heiko and I have been working on THREAD_INFO_IN_TASK for s390 and arm64 > > > > respectively, and we're both targetting v4.10. > > > > > > > > These are the common core changes which we both require. I've put together a > > > > branch [1,2] based on v4.9-rc2. I intend to tag this at some point next week so > > > > that Heiko and I have a stable base. > > > > > > As a heads-up, I've collated the tags I've received in the last few days, along > > > with the comment Andy requested in the v1 thread, and tagged this as > > > core-ti-stack-split [1]. > > > > > > Thanks, > > > Mark. > > > > > > [1] git://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git core-ti-stack-split > > > > I believe that Catalin's hoping to take my arm64 patches for v4.10, > > using the above tag as a base. > > > > What's the plan for s390? Are you happy to do the same? > > We intend to merge the s390 variant also for v4.10. Our approach has > changed however: we came to the conclusion that having a per-cpu preempt > count will generate better code on s390; so Martin implemented that. > > And while being at it he also moved the rest of the s390 specific stuff out > of our struct thread_info. The corresponding patches will be pushed to > > git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git features > > branch soon. > > In result we will have a struct thread_info that only contains the flags > field like x86 does. > So we don't depend an any other patches anymore... Just pushed our collected works to the features branch, in case you are interested. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.