From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>,
linux-rt-users@vger.kernel.org, linux-kernel@vger.kernel.org,
tglx@linutronix.de
Subject: Re: [PATCH RT v2] crypto: limit more FPU-enabled sections
Date: Fri, 1 Dec 2017 14:50:00 +0100 [thread overview]
Message-ID: <20171201134959.GG1612@linutronix.de> (raw)
In-Reply-To: <20171201134454.rgiy5cfh72imqqcl@hirez.programming.kicks-ass.net>
On 2017-12-01 14:44:54 [+0100], Peter Zijlstra wrote:
> !PREEMPT kernels. The above should work for everyone and would allow
> using 'long' kernel_fpu loops:
>
> kernel_fpu_begin();
> while (work) {
> do_work();
> kernel_fpu_resched();
> }
> kernel_fpu_end();
>
> regardless of preempt setting.
Ach, wasn't aware that you wanted that explicit for !PREEMPT kernels,
too. Okay, so let me pick this hunk up as-is for RT and before I throw
it mainline I will add some numbers.
Sebastian
next prev parent reply other threads:[~2017-12-01 13:50 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-30 14:22 [PATCH RT] crypto: limit more FPU-enabled sections Sebastian Andrzej Siewior
2017-11-30 14:30 ` Sebastian Andrzej Siewior
2017-12-01 10:43 ` [PATCH RT] arm*: disable NEON in kernel mode Sebastian Andrzej Siewior
2017-12-01 13:45 ` Sebastian Andrzej Siewior
2017-12-01 14:18 ` Mark Rutland
2017-12-01 14:36 ` Sebastian Andrzej Siewior
2017-12-01 15:03 ` Ard Biesheuvel
2017-12-01 17:58 ` Dave Martin
2017-12-01 18:08 ` Russell King - ARM Linux
2017-12-01 18:24 ` Dave Martin
2017-12-01 19:20 ` Ard Biesheuvel
2017-12-04 9:21 ` Sebastian Andrzej Siewior
2017-12-01 17:14 ` Peter Zijlstra
2017-12-01 17:31 ` Russell King - ARM Linux
2017-12-01 17:39 ` Peter Zijlstra
2017-11-30 15:19 ` [PATCH RT] crypto: limit more FPU-enabled sections Steven Rostedt
2017-11-30 15:22 ` Sebastian Andrzej Siewior
2017-12-01 10:44 ` [PATCH RT v2] " Sebastian Andrzej Siewior
2017-12-01 11:32 ` Peter Zijlstra
2017-12-01 13:32 ` Sebastian Andrzej Siewior
2017-12-01 13:44 ` Peter Zijlstra
2017-12-01 13:50 ` Sebastian Andrzej Siewior [this message]
2017-12-01 14:03 ` [PATCH RT v3] " Sebastian Andrzej Siewior
2017-11-30 15:29 ` [PATCH RT] " Steven Rostedt
2017-11-30 15:41 ` Sebastian Andrzej Siewior
2017-11-30 16:18 ` Steven Rostedt
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