From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: [PATCH v2 16/44] cpuidle: Annotate poll_idle() Date: Mon, 19 Sep 2022 11:59:55 +0200 Message-ID: <20220919101521.407822201@infradead.org> References: <20220919095939.761690562@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org 1B6E2424E7 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org 6B7AF41679 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp2.osuosl.org 5166040B69 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp2.osuosl.org 67B0B40B54 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Type:MIME-Version:References: Subject:Cc:To:From:Date:Message-ID:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To; bh=egsvZxpcWuzc2m7IwsV6/F25N5YaTkcmJRSjKuAk/t4=; b=IPV8VEqSgHchJfg2hSrgllHxXW Nixh1jiWbQyQ/la6ihzR25T5PV0cXxvPR93OjBdL7QE8u6vDBRQBdU72SeqgLekhxT4VBD/C1tCf5 1ixvrk8hLr6XSD8uTkw18PWmXzgWcpSCrr7YDmhCU04xZ2iQaIwe73Pq4WhROraVFV/jtWm107aTT tcxQuztAAVL8QUeUEIE4P2VT18nFQwfVwgsW7Tdzp+0Yo+UgZpVZDsYxfcUaZUFh+gYi7jljrAq7h 7iRkUJLC+OfIwriNcFBZ8n/OuDQ1JtjlkefcE6nWlQjTQGIbNegXQTlshVUv0QzzIep1MikBhlvr1 UEMraAZA==; List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" To: peterz@infradead.org Cc: juri.lelli@redhat.com, "Rafael J. Wysocki" , rafael@kernel.org, catalin.marinas@arm.com, linus.walleij@linaro.org, bsegall@google.com, guoren@kernel.org, pavel@ucw.cz, agordeev@linux.ibm.com, linux-arch@vger.kernel.org, vincent.guittot@linaro.org, mpe@ellerman.id.au, chenhuacai@kernel.org, christophe.leroy@csgroup.eu, linux-acpi@vger.kernel.org, agross@kernel.org, geert@linux-m68k.org, linux-imx@nxp.com, vgupta@kernel.org, mattst88@gmail.com, mturquette@baylibre.com, sammy@sammy.net, pmladek@suse.com, linux-pm@vger.kernel.org, Sascha Hauer , linux-um@lists.infradead.org, npiggin@gmail.com, tglx@linutronix.de, linux-omap@vger.kernel.org, dietmar.eggemann@arm.com, andreyknvl@gmail.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, senozhatsky@chromium.org, svens@linux.ibm.com The __cpuidle functions will become a noinstr class, as such they need explicit annotations. Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Rafael J. Wysocki --- drivers/cpuidle/poll_state.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/cpuidle/poll_state.c +++ b/drivers/cpuidle/poll_state.c @@ -13,7 +13,10 @@ static int __cpuidle poll_idle(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { - u64 time_start = local_clock(); + u64 time_start; + + instrumentation_begin(); + time_start = local_clock(); dev->poll_time_limit = false; @@ -39,6 +42,7 @@ static int __cpuidle poll_idle(struct cp raw_local_irq_disable(); current_clr_polling(); + instrumentation_end(); return index; }