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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Paul McKenney <paulmck@kernel.org>,
	"the arch/x86 maintainers" <x86@kernel.org>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Juri Lelli <juri.lelli@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	Will Deacon <will@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linux-MM <linux-mm@kvack.org>,
	Russell King <linux@armlinux.org.uk>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Chris Zankel <chris@zankel.net>,
	Max Filippov <jcmvbkbc@gmail.com>,
	linux-xtensa@linux-xtensa.org,
	Jani Nikula <jani.nikula@linux.intel.com>,
	Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Vineet Gupta <vgupta@synopsys.com>,
	"open list:SYNOPSYS ARC ARCHITECTURE" 
	<linux-snps-arc@lists.infradead.org>,
	Arnd Bergmann <arnd@arndb.de>, Guo Ren <guoren@kernel.org>,
	linux-csky@vger.kernel.org, Michal Simek <monstr@monstr.eu>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	linux-mips@vger.kernel.org, Nick Hu <nickhu@andestech.com>,
	Greentime Hu <green.hu@gmail.com>,
	Vincent Chen <deanbo422@gmail.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	"David S. Miller" <davem@davemloft.net>,
	linux-sparc <sparclinux@vger.kernel.org>
Subject: Re: [patch RFC 00/15] mm/highmem: Provide a preemptible variant of kmap_atomic & friends
Date: Mon, 21 Sep 2020 09:24:45 -0700	[thread overview]
Message-ID: <CAHk-=wjhxzx3KHHOMvdDj3Aw-_Mk5eRiNTUBB=tFf=vTkw1FeA@mail.gmail.com> (raw)
In-Reply-To: <87a6xjd1dw.fsf@nanos.tec.linutronix.de>

On Mon, Sep 21, 2020 at 12:39 AM Thomas Gleixner <tglx@linutronix.de> wrote:
>
> If a task is migrated to a different CPU then the mapping address will
> change which will explode in colourful ways.

Heh.

Right you are.

Maybe we really *could* call this new kmap functionality something
like "kmap_percpu()" (or maybe "local" is good enough), and make it
act like your RT code does for spinlocks - not disable preemption, but
only disabling CPU migration.

That would probably be good enough for a lot of users that don't want
to expose excessive latencies, but where it's really not a huge deal
to say "stick to this CPU for a short while".

The crypto code certainly sounds like one such case.

             Linus

WARNING: multiple messages have this Message-ID (diff)
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Juri Lelli <juri.lelli@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	linux-mips@vger.kernel.org, Ben Segall <bsegall@google.com>,
	Max Filippov <jcmvbkbc@gmail.com>, Guo Ren <guoren@kernel.org>,
	linux-sparc <sparclinux@vger.kernel.org>,
	Vincent Chen <deanbo422@gmail.com>, Will Deacon <will@kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Michael Ellerman <mpe@ellerman.id.au>,
	the arch/x86 maintainers <x86@kernel.org>,
	Russell King <linux@armlinux.org.uk>,
	linux-csky@vger.kernel.org, David Airlie <airlied@linux.ie>,
	Mel Gorman <mgorman@suse.de>,
	"open list:SYNOPSYS ARC ARCHITECTURE"
	<linux-snps-arc@lists.infradead.org>,
	linux-xtensa@linux-xtensa.org, Paul McKenney <paulmck@kernel.org>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Chris Zankel <chris@zankel.net>, Michal Simek <monstr@monstr.eu>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Nick Hu <nickhu@andestech.com>, Linux-MM <linux-mm@kvack.org>,
	Vineet Gupta <vgupta@synopsys.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Arnd Bergmann <arnd@arndb.de>, Paul Mackerras <paulus@samba.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Greentime Hu <green.hu@gmail.com>
Subject: Re: [patch RFC 00/15] mm/highmem: Provide a preemptible variant of kmap_atomic & friends
Date: Mon, 21 Sep 2020 16:24:45 +0000	[thread overview]
Message-ID: <CAHk-=wjhxzx3KHHOMvdDj3Aw-_Mk5eRiNTUBB=tFf=vTkw1FeA@mail.gmail.com> (raw)
In-Reply-To: <87a6xjd1dw.fsf@nanos.tec.linutronix.de>

On Mon, Sep 21, 2020 at 12:39 AM Thomas Gleixner <tglx@linutronix.de> wrote:
>
> If a task is migrated to a different CPU then the mapping address will
> change which will explode in colourful ways.

Heh.

Right you are.

Maybe we really *could* call this new kmap functionality something
like "kmap_percpu()" (or maybe "local" is good enough), and make it
act like your RT code does for spinlocks - not disable preemption, but
only disabling CPU migration.

That would probably be good enough for a lot of users that don't want
to expose excessive latencies, but where it's really not a huge deal
to say "stick to this CPU for a short while".

The crypto code certainly sounds like one such case.

             Linus

WARNING: multiple messages have this Message-ID (diff)
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Juri Lelli <juri.lelli@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	linux-mips@vger.kernel.org, Ben Segall <bsegall@google.com>,
	Max Filippov <jcmvbkbc@gmail.com>, Guo Ren <guoren@kernel.org>,
	linux-sparc <sparclinux@vger.kernel.org>,
	Vincent Chen <deanbo422@gmail.com>, Will Deacon <will@kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	the arch/x86 maintainers <x86@kernel.org>,
	Russell King <linux@armlinux.org.uk>,
	linux-csky@vger.kernel.org, David Airlie <airlied@linux.ie>,
	Mel Gorman <mgorman@suse.de>,
	"open list:SYNOPSYS ARC ARCHITECTURE"
	<linux-snps-arc@lists.infradead.org>,
	linux-xtensa@linux-xtensa.org, Paul McKenney <paulmck@kernel.org>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Chris Zankel <chris@zankel.net>, Michal Simek <monstr@monstr.eu>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Nick Hu <nickhu@andestech.com>, Linux-MM <linux-mm@kvack.org>,
	Vineet Gupta <vgupta@synopsys.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Arnd Bergmann <arnd@arndb.de>, Daniel Vetter <daniel@ffwll.ch>,
	Paul Mackerras <paulus@samba.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Greentime Hu <green.hu@gmail.com>
Subject: Re: [patch RFC 00/15] mm/highmem: Provide a preemptible variant of kmap_atomic & friends
Date: Mon, 21 Sep 2020 09:24:45 -0700	[thread overview]
Message-ID: <CAHk-=wjhxzx3KHHOMvdDj3Aw-_Mk5eRiNTUBB=tFf=vTkw1FeA@mail.gmail.com> (raw)
In-Reply-To: <87a6xjd1dw.fsf@nanos.tec.linutronix.de>

On Mon, Sep 21, 2020 at 12:39 AM Thomas Gleixner <tglx@linutronix.de> wrote:
>
> If a task is migrated to a different CPU then the mapping address will
> change which will explode in colourful ways.

Heh.

Right you are.

Maybe we really *could* call this new kmap functionality something
like "kmap_percpu()" (or maybe "local" is good enough), and make it
act like your RT code does for spinlocks - not disable preemption, but
only disabling CPU migration.

That would probably be good enough for a lot of users that don't want
to expose excessive latencies, but where it's really not a huge deal
to say "stick to this CPU for a short while".

The crypto code certainly sounds like one such case.

             Linus

WARNING: multiple messages have this Message-ID (diff)
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Juri Lelli <juri.lelli@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	linux-mips@vger.kernel.org, Ben Segall <bsegall@google.com>,
	Max Filippov <jcmvbkbc@gmail.com>, Guo Ren <guoren@kernel.org>,
	linux-sparc <sparclinux@vger.kernel.org>,
	Vincent Chen <deanbo422@gmail.com>, Will Deacon <will@kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Michael Ellerman <mpe@ellerman.id.au>,
	the arch/x86 maintainers <x86@kernel.org>,
	Russell King <linux@armlinux.org.uk>,
	linux-csky@vger.kernel.org, David Airlie <airlied@linux.ie>,
	Mel Gorman <mgorman@suse.de>,
	"open list:SYNOPSYS ARC ARCHITECTURE"
	<linux-snps-arc@lists.infradead.org>,
	linux-xtensa@linux-xtensa.org, Paul McKenney <paulmck@kernel.org>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Chris Zankel <chris@zankel.net>, Michal Simek <monstr@monstr.eu>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Nick Hu <nickhu@andestech.com>, Linux-MM <linux-mm@kvack.org>,
	Vineet Gupta <vgupta@synopsys.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Arnd Bergmann <arnd@arndb.de>, Daniel Vetter <daniel@ffwll.ch>,
	Paul Mackerras <paulus@samba.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Greentime Hu <green.hu@gmail.com>
Subject: Re: [patch RFC 00/15] mm/highmem: Provide a preemptible variant of kmap_atomic & friends
Date: Mon, 21 Sep 2020 09:24:45 -0700	[thread overview]
Message-ID: <CAHk-=wjhxzx3KHHOMvdDj3Aw-_Mk5eRiNTUBB=tFf=vTkw1FeA@mail.gmail.com> (raw)
In-Reply-To: <87a6xjd1dw.fsf@nanos.tec.linutronix.de>

On Mon, Sep 21, 2020 at 12:39 AM Thomas Gleixner <tglx@linutronix.de> wrote:
>
> If a task is migrated to a different CPU then the mapping address will
> change which will explode in colourful ways.

Heh.

Right you are.

Maybe we really *could* call this new kmap functionality something
like "kmap_percpu()" (or maybe "local" is good enough), and make it
act like your RT code does for spinlocks - not disable preemption, but
only disabling CPU migration.

That would probably be good enough for a lot of users that don't want
to expose excessive latencies, but where it's really not a huge deal
to say "stick to this CPU for a short while".

The crypto code certainly sounds like one such case.

             Linus

_______________________________________________
linux-snps-arc mailing list
linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc

WARNING: multiple messages have this Message-ID (diff)
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Juri Lelli <juri.lelli@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	linux-mips@vger.kernel.org, Ben Segall <bsegall@google.com>,
	Max Filippov <jcmvbkbc@gmail.com>, Guo Ren <guoren@kernel.org>,
	linux-sparc <sparclinux@vger.kernel.org>,
	Vincent Chen <deanbo422@gmail.com>, Will Deacon <will@kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Michael Ellerman <mpe@ellerman.id.au>,
	the arch/x86 maintainers <x86@kernel.org>,
	Russell King <linux@armlinux.org.uk>,
	linux-csky@vger.kernel.org, David Airlie <airlied@linux.ie>,
	Mel Gorman <mgorman@suse.de>,
	"open list:SYNOPSYS ARC ARCHITECTURE"
	<linux-snps-arc@lists.infradead.org>,
	linux-xtensa@linux-xtensa.org, Paul McKenney <paulmck@kernel.org>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Chris Zankel <chris@zankel.net>, Michal Simek <monstr@monstr.eu>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Nick Hu <nickhu@andestech.com>, Linux-MM <linux-mm@kvack.org>,
	Vineet Gupta <vgupta@synopsys.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Arnd Bergmann <arnd@arndb.de>, Daniel Vetter <daniel@ffwll.ch>,
	Paul Mackerras <paulus@samba.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Greentime Hu <green.hu@gmail.com>
Subject: Re: [patch RFC 00/15] mm/highmem: Provide a preemptible variant of kmap_atomic & friends
Date: Mon, 21 Sep 2020 09:24:45 -0700	[thread overview]
Message-ID: <CAHk-=wjhxzx3KHHOMvdDj3Aw-_Mk5eRiNTUBB=tFf=vTkw1FeA@mail.gmail.com> (raw)
In-Reply-To: <87a6xjd1dw.fsf@nanos.tec.linutronix.de>

On Mon, Sep 21, 2020 at 12:39 AM Thomas Gleixner <tglx@linutronix.de> wrote:
>
> If a task is migrated to a different CPU then the mapping address will
> change which will explode in colourful ways.

Heh.

Right you are.

Maybe we really *could* call this new kmap functionality something
like "kmap_percpu()" (or maybe "local" is good enough), and make it
act like your RT code does for spinlocks - not disable preemption, but
only disabling CPU migration.

That would probably be good enough for a lot of users that don't want
to expose excessive latencies, but where it's really not a huge deal
to say "stick to this CPU for a short while".

The crypto code certainly sounds like one such case.

             Linus

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Juri Lelli <juri.lelli@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	linux-mips@vger.kernel.org, Ben Segall <bsegall@google.com>,
	Max Filippov <jcmvbkbc@gmail.com>, Guo Ren <guoren@kernel.org>,
	linux-sparc <sparclinux@vger.kernel.org>,
	Vincent Chen <deanbo422@gmail.com>, Will Deacon <will@kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Michael Ellerman <mpe@ellerman.id.au>,
	the arch/x86 maintainers <x86@kernel.org>,
	Russell King <linux@armlinux.org.uk>,
	linux-csky@vger.kernel.org, David Airlie <airlied@linux.ie>,
	Mel Gorman <mgorman@suse.de>,
	"open list:SYNOPSYS ARC ARCHITECTURE"
	<linux-snps-arc@lists.infradead.org>,
	linux-xtensa@linux-xtensa.org, Paul McKenney <paulmck@kernel.org>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Chris Zankel <chris@zankel.net>, Michal Simek <monstr@monstr.eu>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Nick Hu <nickhu@andestech.com>, Linux-MM <linux-mm@kvack.org>,
	Vineet Gupta <vgupta@synopsys.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Arnd Bergmann <arnd@arndb.de>, Paul Mackerras <paulus@samba.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Greentime Hu <green.hu@gmail.com>
Subject: Re: [patch RFC 00/15] mm/highmem: Provide a preemptible variant of kmap_atomic & friends
Date: Mon, 21 Sep 2020 09:24:45 -0700	[thread overview]
Message-ID: <CAHk-=wjhxzx3KHHOMvdDj3Aw-_Mk5eRiNTUBB=tFf=vTkw1FeA@mail.gmail.com> (raw)
In-Reply-To: <87a6xjd1dw.fsf@nanos.tec.linutronix.de>

On Mon, Sep 21, 2020 at 12:39 AM Thomas Gleixner <tglx@linutronix.de> wrote:
>
> If a task is migrated to a different CPU then the mapping address will
> change which will explode in colourful ways.

Heh.

Right you are.

Maybe we really *could* call this new kmap functionality something
like "kmap_percpu()" (or maybe "local" is good enough), and make it
act like your RT code does for spinlocks - not disable preemption, but
only disabling CPU migration.

That would probably be good enough for a lot of users that don't want
to expose excessive latencies, but where it's really not a huge deal
to say "stick to this CPU for a short while".

The crypto code certainly sounds like one such case.

             Linus
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID (diff)
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Juri Lelli <juri.lelli@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	linux-mips@vger.kernel.org, Ben Segall <bsegall@google.com>,
	Max Filippov <jcmvbkbc@gmail.com>, Guo Ren <guoren@kernel.org>,
	linux-sparc <sparclinux@vger.kernel.org>,
	Vincent Chen <deanbo422@gmail.com>, Will Deacon <will@kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Michael Ellerman <mpe@ellerman.id.au>,
	the arch/x86 maintainers <x86@kernel.org>,
	Russell King <linux@armlinux.org.uk>,
	linux-csky@vger.kernel.org, David Airlie <airlied@linux.ie>,
	Mel Gorman <mgorman@suse.de>,
	"open list:SYNOPSYS ARC ARCHITECTURE"
	<linux-snps-arc@lists.infradead.org>,
	linux-xtensa@linux-xtensa.org, Paul McKenney <paulmck@kernel.org>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Chris Zankel <chris@zankel.net>, Michal Simek <monstr@monstr.eu>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Nick Hu <nickhu@andestech.com>, Linux-MM <linux-mm@kvack.org>,
	Vineet Gupta <vgupta@synopsys.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Arnd Bergmann <arnd@arndb.de>, Paul Mackerras <paulus@samba.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Greentime Hu <green.hu@gmail.com>
Subject: Re: [Intel-gfx] [patch RFC 00/15] mm/highmem: Provide a preemptible variant of kmap_atomic & friends
Date: Mon, 21 Sep 2020 09:24:45 -0700	[thread overview]
Message-ID: <CAHk-=wjhxzx3KHHOMvdDj3Aw-_Mk5eRiNTUBB=tFf=vTkw1FeA@mail.gmail.com> (raw)
In-Reply-To: <87a6xjd1dw.fsf@nanos.tec.linutronix.de>

On Mon, Sep 21, 2020 at 12:39 AM Thomas Gleixner <tglx@linutronix.de> wrote:
>
> If a task is migrated to a different CPU then the mapping address will
> change which will explode in colourful ways.

Heh.

Right you are.

Maybe we really *could* call this new kmap functionality something
like "kmap_percpu()" (or maybe "local" is good enough), and make it
act like your RT code does for spinlocks - not disable preemption, but
only disabling CPU migration.

That would probably be good enough for a lot of users that don't want
to expose excessive latencies, but where it's really not a huge deal
to say "stick to this CPU for a short while".

The crypto code certainly sounds like one such case.

             Linus
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  reply	other threads:[~2020-09-21 16:25 UTC|newest]

Thread overview: 428+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-19  9:17 [patch RFC 00/15] mm/highmem: Provide a preemptible variant of kmap_atomic & friends Thomas Gleixner
2020-09-19  9:17 ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:17 ` Thomas Gleixner
2020-09-19  9:17 ` Thomas Gleixner
2020-09-19  9:17 ` Thomas Gleixner
2020-09-19  9:17 ` Thomas Gleixner
2020-09-19  9:17 ` Thomas Gleixner
2020-09-19  9:17 ` Thomas Gleixner
2020-09-19  9:17 ` [patch RFC 01/15] mm/highmem: Un-EXPORT __kmap_atomic_idx() Thomas Gleixner
2020-09-19  9:17   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-21  6:23   ` Christoph Hellwig
2020-09-21  6:23     ` [Intel-gfx] " Christoph Hellwig
2020-09-21  6:23     ` Christoph Hellwig
2020-09-21  6:23     ` Christoph Hellwig
2020-09-21  6:23     ` Christoph Hellwig
2020-09-21  6:23     ` Christoph Hellwig
2020-09-19  9:17 ` [patch RFC 02/15] highmem: Provide generic variant of kmap_atomic* Thomas Gleixner
2020-09-19  9:17   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-21  6:28   ` Christoph Hellwig
2020-09-21  6:28     ` [Intel-gfx] " Christoph Hellwig
2020-09-21  6:28     ` Christoph Hellwig
2020-09-21  6:28     ` Christoph Hellwig
2020-09-21  6:28     ` Christoph Hellwig
2020-09-21  6:28     ` Christoph Hellwig
2020-09-19  9:17 ` [patch RFC 03/15] x86/mm/highmem: Use generic kmap atomic implementation Thomas Gleixner
2020-09-19  9:17   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17 ` [patch RFC 04/15] arc/mm/highmem: " Thomas Gleixner
2020-09-19  9:17   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17 ` [patch RFC 05/15] ARM: highmem: Switch to generic kmap atomic Thomas Gleixner
2020-09-19  9:17   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17 ` [patch RFC 06/15] csky/mm/highmem: " Thomas Gleixner
2020-09-19  9:17   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-23  0:05   ` Guo Ren
2020-09-23  0:05     ` [Intel-gfx] " Guo Ren
2020-09-23  0:05     ` Guo Ren
2020-09-23  0:05     ` Guo Ren
2020-09-23  0:05     ` Guo Ren
2020-09-23  0:05     ` Guo Ren
2020-09-23  0:05     ` Guo Ren
2020-09-23  0:05     ` Guo Ren
2020-09-19  9:17 ` [patch RFC 07/15] microblaze/mm/highmem: " Thomas Gleixner
2020-09-19  9:17   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17 ` [patch RFC 08/15] mips/mm/highmem: " Thomas Gleixner
2020-09-19  9:17   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:17   ` Thomas Gleixner
2020-09-19  9:18 ` [patch RFC 09/15] nds32/mm/highmem: " Thomas Gleixner
2020-09-19  9:18   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18 ` [patch RFC 10/15] powerpc/mm/highmem: " Thomas Gleixner
2020-09-19  9:18   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18 ` [patch RFC 11/15] sparc/mm/highmem: " Thomas Gleixner
2020-09-19  9:18   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18 ` [patch RFC 12/15] xtensa/mm/highmem: " Thomas Gleixner
2020-09-19  9:18   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18 ` [patch RFC 13/15] mm/highmem: Remove the old kmap_atomic cruft Thomas Gleixner
2020-09-19  9:18   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18 ` [patch RFC 14/15] sched: highmem: Store temporary kmaps in task struct Thomas Gleixner
2020-09-19  9:18   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18 ` [patch RFC 15/15] mm/highmem: Provide kmap_temporary* Thomas Gleixner
2020-09-19  9:18   ` [Intel-gfx] " Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19  9:18   ` Thomas Gleixner
2020-09-19 10:03 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for mm/highmem: Provide a preemptible variant of kmap_atomic & friends Patchwork
2020-09-19 10:05 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2020-09-19 10:24 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2020-09-19 10:35 ` [patch RFC 00/15] " Daniel Vetter
2020-09-19 10:35   ` [Intel-gfx] " Daniel Vetter
2020-09-19 10:35   ` Daniel Vetter
2020-09-19 10:35   ` Daniel Vetter
2020-09-19 10:35   ` Daniel Vetter
2020-09-19 10:35   ` Daniel Vetter
2020-09-19 10:35   ` Daniel Vetter
2020-09-19 10:35   ` Daniel Vetter
2020-09-19 10:37   ` Daniel Vetter
2020-09-19 10:37     ` [Intel-gfx] " Daniel Vetter
2020-09-19 10:37     ` Daniel Vetter
2020-09-19 10:37     ` Daniel Vetter
2020-09-19 10:37     ` Daniel Vetter
2020-09-19 10:37     ` Daniel Vetter
2020-09-19 10:37     ` Daniel Vetter
2020-09-19 10:37     ` Daniel Vetter
2020-09-20  6:23     ` Thomas Gleixner
2020-09-20  6:23       ` [Intel-gfx] " Thomas Gleixner
2020-09-20  6:23       ` Thomas Gleixner
2020-09-20  6:23       ` Thomas Gleixner
2020-09-20  6:23       ` Thomas Gleixner
2020-09-20  6:23       ` Thomas Gleixner
2020-09-20  6:23       ` Thomas Gleixner
2020-09-20  8:23       ` Daniel Vetter
2020-09-20  8:23         ` [Intel-gfx] " Daniel Vetter
2020-09-20  8:23         ` Daniel Vetter
2020-09-20  8:23         ` Daniel Vetter
2020-09-20  8:23         ` Daniel Vetter
2020-09-20  8:23         ` Daniel Vetter
2020-09-20  8:23         ` Daniel Vetter
2020-09-20 17:24         ` Thomas Gleixner
2020-09-20 17:24           ` [Intel-gfx] " Thomas Gleixner
2020-09-20 17:24           ` Thomas Gleixner
2020-09-20 17:24           ` Thomas Gleixner
2020-09-20 17:24           ` Thomas Gleixner
2020-09-20 17:24           ` Thomas Gleixner
2020-09-20 17:24           ` Thomas Gleixner
2020-09-19 11:34 ` [Intel-gfx] ✓ Fi.CI.IGT: success for " Patchwork
2020-09-19 17:18 ` [patch RFC 00/15] " Linus Torvalds
2020-09-19 17:18   ` [Intel-gfx] " Linus Torvalds
2020-09-19 17:18   ` Linus Torvalds
2020-09-19 17:18   ` Linus Torvalds
2020-09-19 17:18   ` Linus Torvalds
2020-09-19 17:18   ` Linus Torvalds
2020-09-19 17:18   ` Linus Torvalds
2020-09-19 17:18   ` Linus Torvalds
2020-09-19 17:39   ` Matthew Wilcox
2020-09-19 17:39     ` [Intel-gfx] " Matthew Wilcox
2020-09-19 17:39     ` Matthew Wilcox
2020-09-19 17:39     ` Matthew Wilcox
2020-09-19 17:39     ` Matthew Wilcox
2020-09-19 17:39     ` Matthew Wilcox
2020-09-19 17:39     ` Matthew Wilcox
2020-09-19 17:39     ` Matthew Wilcox
2020-09-19 19:13     ` Linus Torvalds
2020-09-19 19:13       ` [Intel-gfx] " Linus Torvalds
2020-09-19 19:13       ` Linus Torvalds
2020-09-19 19:13       ` Linus Torvalds
2020-09-19 19:13       ` Linus Torvalds
2020-09-19 19:13       ` Linus Torvalds
2020-09-19 19:13       ` Linus Torvalds
2020-09-19 19:13       ` Linus Torvalds
2020-09-21 19:58     ` Ira Weiny
2020-09-21 19:58       ` [Intel-gfx] " Ira Weiny
2020-09-21 19:58       ` Ira Weiny
2020-09-21 19:58       ` Ira Weiny
2020-09-21 19:58       ` Ira Weiny
2020-09-21 19:58       ` Ira Weiny
2020-09-21 19:58       ` Ira Weiny
2020-09-20  6:41   ` Thomas Gleixner
2020-09-20  6:41     ` [Intel-gfx] " Thomas Gleixner
2020-09-20  6:41     ` Thomas Gleixner
2020-09-20  6:41     ` Thomas Gleixner
2020-09-20  6:41     ` Thomas Gleixner
2020-09-20  6:41     ` Thomas Gleixner
2020-09-20  6:41     ` Thomas Gleixner
2020-09-20  6:41     ` Thomas Gleixner
2020-09-20  8:49     ` Thomas Gleixner
2020-09-20  8:49       ` [Intel-gfx] " Thomas Gleixner
2020-09-20  8:49       ` Thomas Gleixner
2020-09-20  8:49       ` Thomas Gleixner
2020-09-20  8:49       ` Thomas Gleixner
2020-09-20  8:49       ` Thomas Gleixner
2020-09-20  8:49       ` Thomas Gleixner
2020-09-20  8:49       ` Thomas Gleixner
2020-09-20 16:57       ` Linus Torvalds
2020-09-20 16:57         ` [Intel-gfx] " Linus Torvalds
2020-09-20 16:57         ` Linus Torvalds
2020-09-20 16:57         ` Linus Torvalds
2020-09-20 16:57         ` Linus Torvalds
2020-09-20 16:57         ` Linus Torvalds
2020-09-20 16:57         ` Linus Torvalds
2020-09-20 16:57         ` Linus Torvalds
2020-09-20 17:40         ` Thomas Gleixner
2020-09-20 17:40           ` [Intel-gfx] " Thomas Gleixner
2020-09-20 17:40           ` Thomas Gleixner
2020-09-20 17:40           ` Thomas Gleixner
2020-09-20 17:40           ` Thomas Gleixner
2020-09-20 17:40           ` Thomas Gleixner
2020-09-20 17:40           ` Thomas Gleixner
2020-09-20 17:40           ` Thomas Gleixner
2020-09-20 17:42           ` Linus Torvalds
2020-09-20 17:42             ` [Intel-gfx] " Linus Torvalds
2020-09-20 17:42             ` Linus Torvalds
2020-09-20 17:42             ` Linus Torvalds
2020-09-20 17:42             ` Linus Torvalds
2020-09-20 17:42             ` Linus Torvalds
2020-09-20 17:42             ` Linus Torvalds
2020-09-20 17:42             ` Linus Torvalds
2020-09-20 17:58             ` Linus Torvalds
2020-09-20 17:58               ` [Intel-gfx] " Linus Torvalds
2020-09-20 17:58               ` Linus Torvalds
2020-09-20 17:58               ` Linus Torvalds
2020-09-20 17:58               ` Linus Torvalds
2020-09-20 17:58               ` Linus Torvalds
2020-09-20 17:58               ` Linus Torvalds
2020-09-20 17:58               ` Linus Torvalds
2020-09-21  7:39             ` Thomas Gleixner
2020-09-21  7:39               ` [Intel-gfx] " Thomas Gleixner
2020-09-21  7:39               ` Thomas Gleixner
2020-09-21  7:39               ` Thomas Gleixner
2020-09-21  7:39               ` Thomas Gleixner
2020-09-21  7:39               ` Thomas Gleixner
2020-09-21  7:39               ` Thomas Gleixner
2020-09-21  7:39               ` Thomas Gleixner
2020-09-21 16:24               ` Linus Torvalds [this message]
2020-09-21 16:24                 ` [Intel-gfx] " Linus Torvalds
2020-09-21 16:24                 ` Linus Torvalds
2020-09-21 16:24                 ` Linus Torvalds
2020-09-21 16:24                 ` Linus Torvalds
2020-09-21 16:24                 ` Linus Torvalds
2020-09-21 16:24                 ` Linus Torvalds
2020-09-21 16:24                 ` Linus Torvalds
2020-09-21 19:27                 ` Thomas Gleixner
2020-09-21 19:27                   ` [Intel-gfx] " Thomas Gleixner
2020-09-21 19:27                   ` Thomas Gleixner
2020-09-21 19:27                   ` Thomas Gleixner
2020-09-21 19:27                   ` Thomas Gleixner
2020-09-21 19:27                   ` Thomas Gleixner
2020-09-21 19:27                   ` Thomas Gleixner
2020-09-21 19:27                   ` Thomas Gleixner
2020-09-23  8:40                   ` peterz
2020-09-23  8:40                     ` [Intel-gfx] " peterz
2020-09-23  8:40                     ` peterz
2020-09-23  8:40                     ` peterz
2020-09-23  8:40                     ` peterz
2020-09-23  8:40                     ` peterz
2020-09-23  8:40                     ` peterz
2020-09-23  8:40                     ` peterz
2020-09-23 13:35                     ` Thomas Gleixner
2020-09-23 13:35                       ` [Intel-gfx] " Thomas Gleixner
2020-09-23 13:35                       ` Thomas Gleixner
2020-09-23 13:35                       ` Thomas Gleixner
2020-09-23 13:35                       ` Thomas Gleixner
2020-09-23 13:35                       ` Thomas Gleixner
2020-09-23 13:35                       ` Thomas Gleixner
2020-09-23 13:35                       ` Thomas Gleixner
2020-09-23 15:52                     ` Steven Rostedt
2020-09-23 15:52                       ` [Intel-gfx] " Steven Rostedt
2020-09-23 15:52                       ` Steven Rostedt
2020-09-23 15:52                       ` Steven Rostedt
2020-09-23 15:52                       ` Steven Rostedt
2020-09-23 15:52                       ` Steven Rostedt
2020-09-23 15:52                       ` Steven Rostedt
2020-09-23 15:52                       ` Steven Rostedt
2020-09-23 20:55                       ` Thomas Gleixner
2020-09-23 20:55                         ` [Intel-gfx] " Thomas Gleixner
2020-09-23 20:55                         ` Thomas Gleixner
2020-09-23 20:55                         ` Thomas Gleixner
2020-09-23 20:55                         ` Thomas Gleixner
2020-09-23 20:55                         ` Thomas Gleixner
2020-09-23 20:55                         ` Thomas Gleixner
2020-09-23 20:55                         ` Thomas Gleixner
2020-09-23 21:12                         ` Steven Rostedt
2020-09-23 21:12                           ` [Intel-gfx] " Steven Rostedt
2020-09-23 21:12                           ` Steven Rostedt
2020-09-23 21:12                           ` Steven Rostedt
2020-09-23 21:12                           ` Steven Rostedt
2020-09-23 21:12                           ` Steven Rostedt
2020-09-23 21:12                           ` Steven Rostedt
2020-09-23 21:12                           ` Steven Rostedt
2020-09-24  6:57                           ` Thomas Gleixner
2020-09-24  6:57                             ` [Intel-gfx] " Thomas Gleixner
2020-09-24  6:57                             ` Thomas Gleixner
2020-09-24  6:57                             ` Thomas Gleixner
2020-09-24  6:57                             ` Thomas Gleixner
2020-09-24  6:57                             ` Thomas Gleixner
2020-09-24  6:57                             ` Thomas Gleixner
2020-09-24  6:57                             ` Thomas Gleixner
2020-09-24 12:32                             ` Steven Rostedt
2020-09-24 12:32                               ` [Intel-gfx] " Steven Rostedt
2020-09-24 12:32                               ` Steven Rostedt
2020-09-24 12:32                               ` Steven Rostedt
2020-09-24 12:32                               ` Steven Rostedt
2020-09-24 12:32                               ` Steven Rostedt
2020-09-24 12:32                               ` Steven Rostedt
2020-09-24 12:32                               ` Steven Rostedt
2020-09-24 12:42                               ` Peter Zijlstra
2020-09-24 12:42                                 ` [Intel-gfx] " Peter Zijlstra
2020-09-24 12:42                                 ` Peter Zijlstra
2020-09-24 12:42                                 ` Peter Zijlstra
2020-09-24 12:42                                 ` Peter Zijlstra
2020-09-24 12:42                                 ` Peter Zijlstra
2020-09-24 12:42                                 ` Peter Zijlstra
2020-09-24 12:42                                 ` Peter Zijlstra
2020-09-24 13:51                                 ` Steven Rostedt
2020-09-24 13:51                                   ` [Intel-gfx] " Steven Rostedt
2020-09-24 13:51                                   ` Steven Rostedt
2020-09-24 13:51                                   ` Steven Rostedt
2020-09-24 13:51                                   ` Steven Rostedt
2020-09-24 13:51                                   ` Steven Rostedt
2020-09-24 13:51                                   ` Steven Rostedt
2020-09-24 13:51                                   ` Steven Rostedt
2020-09-24 13:58                                   ` Peter Zijlstra
2020-09-24 13:58                                     ` [Intel-gfx] " Peter Zijlstra
2020-09-24 13:58                                     ` Peter Zijlstra
2020-09-24 13:58                                     ` Peter Zijlstra
2020-09-24 13:58                                     ` Peter Zijlstra
2020-09-24 13:58                                     ` Peter Zijlstra
2020-09-24 13:58                                     ` Peter Zijlstra
2020-09-24 13:58                                     ` Peter Zijlstra
2020-09-24 17:55                               ` Thomas Gleixner
2020-09-24 17:55                                 ` [Intel-gfx] " Thomas Gleixner
2020-09-24 17:55                                 ` Thomas Gleixner
2020-09-24 17:55                                 ` Thomas Gleixner
2020-09-24 17:55                                 ` Thomas Gleixner
2020-09-24 17:55                                 ` Thomas Gleixner
2020-09-24 17:55                                 ` Thomas Gleixner
2020-09-24 17:55                                 ` Thomas Gleixner
2020-09-24 18:58                                 ` Steven Rostedt
2020-09-24 18:58                                   ` [Intel-gfx] " Steven Rostedt
2020-09-24 18:58                                   ` Steven Rostedt
2020-09-24 18:58                                   ` Steven Rostedt
2020-09-24 18:58                                   ` Steven Rostedt
2020-09-24 18:58                                   ` Steven Rostedt
2020-09-24 18:58                                   ` Steven Rostedt
2020-09-24 18:58                                   ` Steven Rostedt
2020-09-24  8:27                       ` peterz
2020-09-24  8:27                         ` [Intel-gfx] " peterz
2020-09-24  8:27                         ` peterz
2020-09-24  8:27                         ` peterz
2020-09-24  8:27                         ` peterz
2020-09-24  8:27                         ` peterz
2020-09-24  8:27                         ` peterz
2020-09-24  8:27                         ` peterz
2020-09-24 19:36                         ` Daniel Bristot de Oliveira
2020-09-24 19:36                           ` [Intel-gfx] " Daniel Bristot de Oliveira
2020-09-24 19:36                           ` Daniel Bristot de Oliveira
2020-09-24 19:36                           ` Daniel Bristot de Oliveira
2020-09-24 19:36                           ` Daniel Bristot de Oliveira
2020-09-24 19:36                           ` Daniel Bristot de Oliveira
2020-09-24 19:36                           ` Daniel Bristot de Oliveira
2020-09-24 19:36                           ` Daniel Bristot de Oliveira
2020-09-23 10:19                   ` peterz
2020-09-23 10:19                     ` [Intel-gfx] " peterz
2020-09-23 10:19                     ` peterz
2020-09-23 10:19                     ` peterz
2020-09-23 10:19                     ` peterz
2020-09-23 10:19                     ` peterz
2020-09-23 10:19                     ` peterz
2020-09-23 10:19                     ` peterz
2020-09-23 12:33                     ` Thomas Gleixner
2020-09-23 12:33                       ` [Intel-gfx] " Thomas Gleixner
2020-09-23 12:33                       ` Thomas Gleixner
2020-09-23 12:33                       ` Thomas Gleixner
2020-09-23 12:33                       ` Thomas Gleixner
2020-09-23 12:33                       ` Thomas Gleixner
2020-09-23 12:33                       ` Thomas Gleixner
2020-09-23 12:33                       ` Thomas Gleixner
2020-09-23 14:33                   ` Thomas Gleixner
2020-09-23 14:33                     ` [Intel-gfx] " Thomas Gleixner
2020-09-23 14:33                     ` Thomas Gleixner
2020-09-23 14:33                     ` Thomas Gleixner
2020-09-23 14:33                     ` Thomas Gleixner
2020-09-23 14:33                     ` Thomas Gleixner
2020-09-23 14:33                     ` Thomas Gleixner
2020-09-23 14:33                     ` Thomas Gleixner

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