From: Peter Zijlstra <peterz@infradead.org>
To: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux-kernel@vger.kernel.org, mingo@kernel.org,
jasonbaron0@gmail.com, bp@alien8.de, luto@amacapital.net,
tglx@linutronix.de, rostedt@goodmis.org, will.deacon@arm.com,
liuj97@gmail.com, rabin@rab.in, ralf@linux-mips.org,
ddaney@caviumnetworks.com, benh@kernel.crashing.org,
michael@ellerman.id.au, davem@davemloft.net, vbabka@suse.cz
Subject: Re: [PATCH -v2 0/8] jump_label: Another (better) static_key interface
Date: Wed, 29 Jul 2015 10:58:53 +0200 [thread overview]
Message-ID: <20150729085853.GJ19282@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20150729064600.GB3953@osiris>
On Wed, Jul 29, 2015 at 08:46:00AM +0200, Heiko Carstens wrote:
> On Tue, Jul 28, 2015 at 03:20:55PM +0200, Peter Zijlstra wrote:
> > Hi all,
> >
> > After yet another bug because of the weirdness of the static key interface,
> > here an attempt at providing a better one.
> >
> > This series is tested on x86_64 (by me) and s390x (heiko).
>
> Works nice. You may include the s390 patch below, so the conversion to the
> new interface happens when your code gets merged:
>
> From 3c9b5a2b9a90d6bb2b41f381f5f89b3657fe4ea5 Mon Sep 17 00:00:00 2001
> From: Heiko Carstens <heiko.carstens@de.ibm.com>
> Date: Wed, 29 Jul 2015 08:31:24 +0200
> Subject: [PATCH] s390/uaccess: employ static_branch_likely()
>
> Use the new static_branch_likely() primitive to make sure that the
> most likely case is executed without taking an unconditional branch.
> This wasn't possible with the old jump label primitives.
>
> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Thanks!
next prev parent reply other threads:[~2015-07-29 8:59 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-28 13:20 [PATCH -v2 0/8] jump_label: Another (better) static_key interface Peter Zijlstra
2015-07-28 13:20 ` [PATCH -v2 1/8] jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE Peter Zijlstra
2015-07-28 13:20 ` [PATCH -v2 2/8] jump_label: Rename JUMP_LABEL_TYPE_* Peter Zijlstra
2015-07-29 12:58 ` Borislav Petkov
2015-07-28 13:20 ` [PATCH -v2 3/8] jump_label: Add jump_entry_key() helper Peter Zijlstra
2015-07-28 13:20 ` [PATCH -v2 4/8] jump_label: Add static_key_{en,dis}able() helpers Peter Zijlstra
2015-07-28 13:21 ` [PATCH -v2 5/8] jump_label: Rework update logic Peter Zijlstra
2015-07-28 13:21 ` [PATCH -v2 6/8] jump_label: Add a new static_key interface Peter Zijlstra
2015-07-28 17:00 ` Rabin Vincent
2015-07-28 17:20 ` Peter Zijlstra
2015-07-29 6:43 ` Heiko Carstens
2015-07-29 7:19 ` Vlastimil Babka
2015-07-29 8:49 ` Peter Zijlstra
2015-08-03 19:03 ` Steven Rostedt
2015-08-03 19:18 ` Peter Zijlstra
2015-08-03 19:28 ` Steven Rostedt
2015-08-03 20:00 ` Peter Zijlstra
2015-08-03 21:57 ` Steven Rostedt
2015-08-04 3:37 ` Borislav Petkov
2015-08-04 4:07 ` Andy Lutomirski
2015-08-04 4:21 ` Borislav Petkov
2015-08-04 12:06 ` Steven Rostedt
2015-08-04 14:33 ` Borislav Petkov
2015-08-04 14:41 ` Steven Rostedt
2015-08-04 14:51 ` Andy Lutomirski
2015-07-30 12:18 ` Michael Ellerman
2015-08-04 6:50 ` yalin wang
2015-08-04 9:15 ` Peter Zijlstra
2015-07-28 13:21 ` [PATCH -v2 7/8] jump_label: Add selftest Peter Zijlstra
2015-07-28 21:46 ` Jason Baron
2015-07-29 8:53 ` Peter Zijlstra
2015-07-28 13:21 ` [PATCH -v2 8/8] x86, tsc: Employ static_branch_likely() Peter Zijlstra
2015-07-29 14:07 ` Borislav Petkov
2015-07-29 6:46 ` [PATCH -v2 0/8] jump_label: Another (better) static_key interface Heiko Carstens
2015-07-29 8:58 ` Peter Zijlstra [this message]
2015-08-03 17:03 ` [tip:locking/core] s390/uaccess, locking/static_keys: employ static_branch_likely() tip-bot for Heiko Carstens
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