From: Michael Ellerman <mpe@ellerman.id.au>
To: akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>,
Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
Vineet Gupta <vgupta@synopsys.com>,
Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Richard Kuo <rkuo@codeaurora.org>,
Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Michal Simek <monstr@monstr.eu>,
Ralf Baechle <ralf@linux-mips.org>,
Jonas Bonn <jonas@southpole.se>,
Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
Stafford Horne <shorne@gmail.com>,
"James E.J. Bottomley" <jejb@parisc-linux.org>,
Helge Deller <deller@gmx.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Sat, 04 Mar 2017 12:49:44 +0000 [thread overview]
Message-ID: <877f45cil2.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <20170303122712.13353-1-jslaby@suse.cz>
Jiri Slaby <jslaby@suse.cz> writes:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
>
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
Looks OK and boots on powerpc. But I don't think anything's actually
calling those futex ops. Is there a test suite I should run?
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
cheers
WARNING: multiple messages have this Message-ID (diff)
From: Michael Ellerman <mpe@ellerman.id.au>
To: Jiri Slaby <jslaby@suse.cz>, akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>,
Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
Vineet Gupta <vgupta@synopsys.com>,
Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Richard Kuo <rkuo@codeaurora.org>,
Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Michal Simek <monstr@monstr.eu>,
Ralf Baechle <ralf@linux-mips.org>,
Jonas Bonn <jonas@southpole.se>,
Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
Stafford Horne <shorne@gmail.com>,
"James E.J. Bottomley" <jejb@parisc-linux.org>,
Helge Deller <deller@gmx.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Sat, 04 Mar 2017 23:49:44 +1100 [thread overview]
Message-ID: <877f45cil2.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <20170303122712.13353-1-jslaby@suse.cz>
Jiri Slaby <jslaby@suse.cz> writes:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
>
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
Looks OK and boots on powerpc. But I don't think anything's actually
calling those futex ops. Is there a test suite I should run?
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
cheers
WARNING: multiple messages have this Message-ID (diff)
From: Michael Ellerman <mpe@ellerman.id.au>
To: Jiri Slaby <jslaby@suse.cz>, akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>,
Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
Vineet Gupta <vgupta@synopsys.com>,
Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Richard Kuo <rkuo@codeaurora.org>,
Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Michal Simek <monstr@monstr.eu>,
Ralf Baechle <ralf@linux-mips.org>,
Jonas Bonn <jonas@southpole.se>,
Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
Stafford Horne <shorne@gmail.com>,
"James E.J. Bottomley" <jejb@parisc-linux.org>,
Helge Deller <deller@gmx.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Rich Felker <dalias@libc.org>,
"David S. Miller" <davem@davemloft.net>,
C hris Metcalf <cmetcalf@mellanox.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Chris Zankel <chris@zankel.net>,
Max Filippov <jcmvbkbc@gmail.com>, Arnd Bergmann <arnd@arndb.de>,
x86@kernel.org, linux-alpha@vger.kernel.org,
linux-snps-arc@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org,
linux-mips@linux-mips.org, openrisc@lists.librecores.org,
linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org,
linux-arch@vger.kernel.org
Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Sat, 04 Mar 2017 23:49:44 +1100 [thread overview]
Message-ID: <877f45cil2.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <20170303122712.13353-1-jslaby@suse.cz>
Jiri Slaby <jslaby@suse.cz> writes:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
>
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
Looks OK and boots on powerpc. But I don't think anything's actually
calling those futex ops. Is there a test suite I should run?
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
cheers
WARNING: multiple messages have this Message-ID (diff)
From: Michael Ellerman <mpe@ellerman.id.au>
To: akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>,
Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
Vineet Gupta <vgupta@synopsys.com>,
Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Richard Kuo <rkuo@codeaurora.org>,
Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Michal Simek <monstr@monstr.eu>,
Ralf Baechle <ralf@linux-mips.org>,
Jonas Bonn <jonas@southpole.se>,
Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
Stafford Horne <shorne@gmail.com>,
"James E.J. Bottomley" <jejb@parisc-linux.org>,
Helge Deller <deller@gmx.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Sat, 04 Mar 2017 23:49:44 +1100 [thread overview]
Message-ID: <877f45cil2.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <20170303122712.13353-1-jslaby@suse.cz>
Jiri Slaby <jslaby@suse.cz> writes:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
>
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
Looks OK and boots on powerpc. But I don't think anything's actually
calling those futex ops. Is there a test suite I should run?
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
cheers
WARNING: multiple messages have this Message-ID (diff)
From: Michael Ellerman <mpe@ellerman.id.au>
To: Jiri Slaby <jslaby@suse.cz>, akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
Vineet Gupta <vgupta@synopsys.com>,
Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Richard Kuo <rkuo@codeaurora.org>,
Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Michal Simek <monstr@monstr.eu>,
Ralf Baechle <ralf@linux-mips.org>,
Jonas Bonn <jonas@southpole.se>,
Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
Stafford Horne <shorne@gmail.com>,
"James E.J. Bottomley" <jejb@parisc-linux.org>,
Helge Deller <deller@gmx.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Rich Felker <dalias@libc.org>,
"David S. Miller" <davem@davemloft.net>,
C hris Metcalf <cmetcalf@mellanox.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Chris Zankel <chris@zankel.net>,
Max Filippov <jcmvbkbc@gmail.com>, Arnd Bergmann <arnd@arndb.de>,
x86@kernel.org, linux-alpha@vger.kernel.org,
linux-snps-arc@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org,
linux-mips@linux-mips.org, openrisc@lists.librecores.org,
linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org,
linux-arch@vger.kernel.org
Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Sat, 04 Mar 2017 23:49:44 +1100 [thread overview]
Message-ID: <877f45cil2.fsf@concordia.ellerman.id.au> (raw)
Message-ID: <20170304124944.jmZUDY30-4lR4lRPmnyfEhiLcvBhfcXgKtFMstaeAUQ@z> (raw)
In-Reply-To: <20170303122712.13353-1-jslaby@suse.cz>
Jiri Slaby <jslaby@suse.cz> writes:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
>
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
Looks OK and boots on powerpc. But I don't think anything's actually
calling those futex ops. Is there a test suite I should run?
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
cheers
WARNING: multiple messages have this Message-ID (diff)
From: mpe@ellerman.id.au (Michael Ellerman)
To: linux-snps-arc@lists.infradead.org
Subject: [PATCH 1/3] futex: remove duplicated code
Date: Sat, 04 Mar 2017 23:49:44 +1100 [thread overview]
Message-ID: <877f45cil2.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <20170303122712.13353-1-jslaby@suse.cz>
Jiri Slaby <jslaby at suse.cz> writes:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
>
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
Looks OK and boots on powerpc. But I don't think anything's actually
calling those futex ops. Is there a test suite I should run?
Acked-by: Michael Ellerman <mpe at ellerman.id.au> (powerpc)
cheers
WARNING: multiple messages have this Message-ID (diff)
From: Michael Ellerman <mpe@ellerman.id.au>
To: Jiri Slaby <jslaby@suse.cz>, akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>,
Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
Vineet Gupta <vgupta@synopsys.com>,
Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Richard Kuo <rkuo@codeaurora.org>,
Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Michal Simek <monstr@monstr.eu>,
Ralf Baechle <ralf@linux-mips.org>,
Jonas Bonn <jonas@southpole.se>,
Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
Stafford Horne <shorne@gmail.com>,
"James E.J. Bottomley" <jejb@parisc-linux.org>,
Helge Deller <deller@gmx.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Sat, 04 Mar 2017 23:49:44 +1100 [thread overview]
Message-ID: <877f45cil2.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <20170303122712.13353-1-jslaby@suse.cz>
Jiri Slaby <jslaby@suse.cz> writes:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
>
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
Looks OK and boots on powerpc. But I don't think anything's actually
calling those futex ops. Is there a test suite I should run?
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
cheers
next prev parent reply other threads:[~2017-03-04 12:49 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-03 12:27 [PATCH 1/3] futex: remove duplicated code Jiri Slaby
2017-03-03 12:27 ` [OpenRISC] " Jiri Slaby
2017-03-03 12:27 ` Jiri Slaby
2017-03-03 12:27 ` Jiri Slaby
2017-03-03 12:27 ` Jiri Slaby
2017-03-03 12:27 ` Jiri Slaby
2017-03-03 12:27 ` [PATCH 2/3] futex: fix decoding of operation Jiri Slaby
2017-03-03 12:27 ` [PATCH 3/3] futex: make the encoded_op decoding readable Jiri Slaby
2017-03-05 7:55 ` Jiri Slaby
2017-03-03 14:08 ` [PATCH 1/3] futex: remove duplicated code Heiko Carstens
2017-03-03 14:08 ` Heiko Carstens
2017-03-03 14:08 ` Heiko Carstens
2017-03-03 14:08 ` Heiko Carstens
2017-03-03 14:08 ` Heiko Carstens
2017-03-03 14:08 ` Heiko Carstens
2017-03-03 14:48 ` Chris Metcalf
2017-03-03 14:48 ` Chris Metcalf
2017-03-03 14:48 ` Chris Metcalf
2017-03-03 14:48 ` Chris Metcalf
2017-03-03 14:48 ` Chris Metcalf
2017-03-03 14:48 ` Chris Metcalf
2017-03-03 14:48 ` Chris Metcalf
2017-03-04 12:49 ` Michael Ellerman [this message]
2017-03-04 12:49 ` Michael Ellerman
2017-03-04 12:49 ` Michael Ellerman
2017-03-04 12:49 ` Michael Ellerman
2017-03-04 12:49 ` Michael Ellerman
2017-03-04 12:49 ` Michael Ellerman
2017-03-04 12:49 ` Michael Ellerman
2017-03-04 13:05 ` Russell King - ARM Linux
2017-03-04 13:05 ` Russell King - ARM Linux
2017-03-04 13:05 ` Russell King - ARM Linux
2017-03-04 13:05 ` Russell King - ARM Linux
2017-03-04 13:05 ` Russell King - ARM Linux
2017-03-04 13:05 ` Russell King - ARM Linux
2017-03-04 19:15 ` H. Peter Anvin
2017-03-04 19:15 ` H. Peter Anvin
2017-03-04 19:15 ` H. Peter Anvin
2017-03-04 19:15 ` H. Peter Anvin
2017-03-04 19:15 ` H. Peter Anvin
2017-03-04 19:15 ` H. Peter Anvin
2017-03-04 21:38 ` Stafford Horne
2017-03-04 21:38 ` [OpenRISC] " Stafford Horne
2017-03-04 21:38 ` Stafford Horne
2017-03-04 21:38 ` Stafford Horne
2017-03-04 21:38 ` Stafford Horne
2017-03-04 21:38 ` Stafford Horne
2017-03-04 21:38 ` Stafford Horne
2017-03-04 23:03 ` H. Peter Anvin
2017-03-04 23:03 ` H. Peter Anvin
2017-03-04 23:03 ` H. Peter Anvin
2017-03-04 23:03 ` H. Peter Anvin
2017-03-04 23:03 ` H. Peter Anvin
2017-03-04 23:03 ` H. Peter Anvin
2017-03-04 23:03 ` H. Peter Anvin
2017-03-04 23:03 ` H. Peter Anvin
2017-03-04 23:08 ` H. Peter Anvin
2017-03-04 23:08 ` H. Peter Anvin
2017-03-04 23:08 ` H. Peter Anvin
2017-03-04 23:08 ` H. Peter Anvin
2017-03-04 23:08 ` H. Peter Anvin
2017-03-04 23:08 ` H. Peter Anvin
2017-03-04 23:08 ` H. Peter Anvin
2017-03-04 23:39 ` Stafford Horne
2017-03-06 8:46 ` Jiri Slaby
2017-03-06 9:13 ` H. Peter Anvin
2017-03-06 14:14 ` Geert Uytterhoeven
2017-03-04 23:08 ` H. Peter Anvin
2017-03-09 4:16 ` Rob Landley
2017-03-09 4:16 ` Rob Landley
2017-03-09 4:16 ` Rob Landley
2017-03-09 4:16 ` Rob Landley
2017-03-09 4:16 ` Rob Landley
2017-03-09 4:36 ` H. Peter Anvin
2017-03-09 4:36 ` H. Peter Anvin
2017-03-09 4:36 ` H. Peter Anvin
2017-03-09 4:36 ` H. Peter Anvin
2017-03-09 4:36 ` H. Peter Anvin
2017-03-09 4:36 ` H. Peter Anvin
2017-03-09 4:36 ` H. Peter Anvin
2017-03-09 4:36 ` H. Peter Anvin
2017-03-09 22:37 ` Rich Felker
2017-03-06 1:52 ` Rich Felker
2017-03-06 1:52 ` Rich Felker
2017-03-06 1:52 ` Rich Felker
2017-03-06 1:52 ` Rich Felker
2017-03-06 1:52 ` Rich Felker
2017-03-06 1:52 ` Rich Felker
2017-03-09 22:43 ` Vineet Gupta
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=877f45cil2.fsf@concordia.ellerman.id.au \
--to=mpe@ellerman.id.au \
--cc=akpm@linux-foundation.org \
--cc=benh@kernel.crashing.org \
--cc=catalin.marinas@arm.com \
--cc=deller@gmx.de \
--cc=fenghua.yu@intel.com \
--cc=ink@jurassic.park.msu.ru \
--cc=jejb@parisc-linux.org \
--cc=jonas@southpole.se \
--cc=jslaby@suse.cz \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=mattst88@gmail.com \
--cc=monstr@monstr.eu \
--cc=ralf@linux-mips.org \
--cc=rkuo@codeaurora.org \
--cc=rth@twiddle.net \
--cc=shorne@gmail.com \
--cc=stefan.kristiansson@saunalahti.fi \
--cc=tony.luck@intel.com \
--cc=vgupta@synopsys.com \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.