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Tue, 22 Mar 2016 01:19:18 -0700 (PDT) Received: from localhost.localdomain ([94.18.191.146]) by smtp.gmail.com with ESMTPSA id 8sm16101691wmk.13.2016.03.22.01.19.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 22 Mar 2016 01:19:17 -0700 (PDT) From: Christoffer Dall To: Paolo Bonzini Subject: [PULL 1/3] KVM: arm/arm64: disable preemption when calling smp_call_function_many Date: Tue, 22 Mar 2016 09:19:34 +0100 Message-Id: <1458634776-18388-2-git-send-email-christoffer.dall@linaro.org> X-Mailer: git-send-email 2.1.2.330.g565301e.dirty In-Reply-To: <1458634776-18388-1-git-send-email-christoffer.dall@linaro.org> References: <1458634776-18388-1-git-send-email-christoffer.dall@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160322_011940_007033_F4AE5807 X-CRM114-Status: GOOD ( 10.08 ) X-Spam-Score: -2.7 (--) X-Spam-Report: SpamAssassin version 3.4.0 on bombadil.infradead.org summary: Content analysis details: (-2.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [2a00:1450:400c:c09:0:0:0:234 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kvm@vger.kernel.org, Eric Auger , Marc Zyngier , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, Christoffer Dall MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org From: Eric Auger Preemption must be disabled when calling smp_call_function_many Reported-by: bartosz.wawrzyniak@tieto.com Signed-off-by: Eric Auger Signed-off-by: Christoffer Dall --- arch/arm/kvm/arm.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.1.2.330.g565301e.dirty _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index 3e0fb66..6accd66 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -373,7 +373,9 @@ static void exit_vm_noop(void *info) void force_vm_exit(const cpumask_t *mask) { + preempt_disable(); smp_call_function_many(mask, exit_vm_noop, NULL, true); + preempt_enable(); } /**