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[34.68.225.194]) by smtp.gmail.com with ESMTPSA id 4-20020a92c644000000b002cde6e352e2sm3350687ill.44.2022.05.09.12.57.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 May 2022 12:57:43 -0700 (PDT) Date: Mon, 9 May 2022 19:57:40 +0000 From: Oliver Upton To: Fuad Tabba Subject: Re: [PATCH v3 2/4] KVM: arm64: Repack struct kvm_pmu to reduce size Message-ID: References: <20220509120330.3043773-1-tabba@google.com> <20220509120330.3043773-3-tabba@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220509120330.3043773-3-tabba@google.com> Cc: will@kernel.org, maz@kernel.org, catalin.marinas@arm.com, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu On Mon, May 09, 2022 at 12:03:28PM +0000, Fuad Tabba wrote: > struct kvm_pmu has 2 holes using 10 bytes. This is instantiated > in all vcpus, so it adds up. This repacking removes all holes. nit: commit messages should be written in the imperative. So maybe 'Repack the structure to remove all holes'. > No functional change intended. > > Signed-off-by: Fuad Tabba Otherwise: Reviewed-by: Oliver Upton > --- > include/kvm/arm_pmu.h | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/include/kvm/arm_pmu.h b/include/kvm/arm_pmu.h > index 20193416d214..eaa8290b116f 100644 > --- a/include/kvm/arm_pmu.h > +++ b/include/kvm/arm_pmu.h > @@ -21,12 +21,12 @@ struct kvm_pmc { > }; > > struct kvm_pmu { > - int irq_num; > + struct irq_work overflow_work; > struct kvm_pmc pmc[ARMV8_PMU_MAX_COUNTERS]; > DECLARE_BITMAP(chained, ARMV8_PMU_MAX_COUNTER_PAIRS); > + int irq_num; > bool created; > bool irq_level; > - struct irq_work overflow_work; > }; > > struct arm_pmu_entry { > -- > 2.36.0.512.ge40c2bad7a-goog > > _______________________________________________ > kvmarm mailing list > kvmarm@lists.cs.columbia.edu > https://lists.cs.columbia.edu/mailman/listinfo/kvmarm _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm