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From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
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>,
	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: Thu, 9 Mar 2017 14:43:40 -0800	[thread overview]
Message-ID: <ee491dc2-21f8-9576-e447-09dfe23149ff@synopsys.com> (raw)
In-Reply-To: <20170303122712.13353-1-jslaby@suse.cz>

On 03/03/2017 04:27 AM, Jiri Slaby wrote:
> 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.
> 
> Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
> remove pointless access_ok() checks") as access_ok there returns true.
> We introduce it back to the helper for the sake of simplicity (it gets
> optimized away anyway).


Acked-by: Vineet Gupta <vgupta@synopsys.com>   # Boot tested on ARC

Thx,
-Vineet

      parent reply	other threads:[~2017-03-09 22:44 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
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 [this message]

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