From: Peter Zijlstra <peterz@infradead.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Vlastimil Babka <vbabka@suse.cz>,
linux-kernel@vger.kernel.org, mingo@kernel.org,
jasonbaron0@gmail.com, bp@alien8.de, luto@amacapital.net,
tglx@linutronix.de, 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,
heiko.carstens@de.ibm.com, davem@davemloft.net
Subject: Re: [PATCH -v2 6/8] jump_label: Add a new static_key interface
Date: Mon, 3 Aug 2015 22:00:02 +0200 [thread overview]
Message-ID: <20150803200002.GE25159@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20150803152810.5a7bcf06@gandalf.local.home>
On Mon, Aug 03, 2015 at 03:28:10PM -0400, Steven Rostedt wrote:
> Technically, one can think: "activate the branch", but we are
> activating not the branch, but the jump label itself.
No you are enabling the branch, you're making the branch body active.
There is no enable/disable/true/false for the jump label, only NOP or
JUMP, and either can result in an active branch body.
next prev parent reply other threads:[~2015-08-03 20:00 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 [this message]
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
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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