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
prev parent reply other threads:[~2017-03-09 22:44 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
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 14:48 ` Chris Metcalf
2017-03-04 12:49 ` Michael Ellerman
2017-03-04 13:05 ` Russell King - ARM Linux
2017-03-04 19:15 ` H. Peter Anvin
2017-03-04 21:38 ` Stafford Horne
2017-03-04 23:03 ` 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
2017-03-09 4:16 ` Rob Landley
2017-03-09 4:36 ` H. Peter Anvin
2017-03-09 22:37 ` Rich Felker
2017-03-06 1:52 ` Rich Felker
2017-03-09 22:43 ` Vineet Gupta [this message]
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