From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DB7EA258CF8 for ; Wed, 12 Mar 2025 19:43:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.92.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741808633; cv=none; b=uYlzLB9QPg6eO3KNb5arcYvD/uOhvNENHvMW66KdhG3r1ih81f0jWYgQ3NSdT8JwtadDt2fygjINXv6yPILAG9m44m4w5MJeRZ8RL8sabIdUDBdg2pVakYu8CGGcFAIf7eiZrXDKqIp9hhLVHBM6T/COTrIOnRrqPiz6mkknuBE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741808633; c=relaxed/simple; bh=d6zzect/sdYr/cCXfvJppxjmdys4AynPPOCTWQdhxR8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=FP6X6u3NX0+sC8p6r/ux1XPC7Dc2uBwNNhP9yTDrO0I9zUSLtJFxRkfliJIbVNYzvB7OiepSShMC/4qKpi75/8XAUNSlufvplaVsbjS1wftyggvWpXu9iihErFjq+C83mqj4OzwQqGKQyNbubhwDiiw3OI9gYVGX2eeMykwvRSQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=jm6RkIOR; arc=none smtp.client-ip=90.155.92.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="jm6RkIOR" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=d6zzect/sdYr/cCXfvJppxjmdys4AynPPOCTWQdhxR8=; b=jm6RkIORheRR37Qn1JMjFsbUQT iLYkXsPs4azi8XT2oMX7olEpzhF4rooJm3MiOmtZgbEqZXL8Bu1j9z2TuSeuq78FEuJRv6S01sQKb VXJ5S0yhHVdxf48Vj6ND9vnhbZlIMKam9CRX/qtFU6cpWHdBjXeT8zCOZfsg3shiETKQCfL3Wmkze bGQ+XZARohwzUkvUBzodcfUafLhv8SrNGWHg1S9kayPzSTBLbE31/KmFEaBq+aW84/q43blbWgnRN fd+LsWIf5TdY2Q7Hf9w+OJhkuhOjiiQJ/Ma9fYPvO1fE64FvYskfrmkGGGxlNtpQGd25qHDo93Cjy Lg2W64+w==; Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.98 #2 (Red Hat Linux)) id 1tsRzU-00000002TN0-3eTN; Wed, 12 Mar 2025 19:43:45 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 5D909300599; Wed, 12 Mar 2025 20:43:43 +0100 (CET) Date: Wed, 12 Mar 2025 20:43:43 +0100 From: Peter Zijlstra To: "Liang, Kan" Cc: mingo@redhat.com, tglx@linutronix.de, bp@alien8.de, acme@kernel.org, namhyung@kernel.org, irogers@google.com, linux-kernel@vger.kernel.org, ak@linux.intel.com, eranian@google.com Subject: Re: [PATCH V8 1/6] perf: Save PMU specific data in task_struct Message-ID: <20250312194343.GC10453@noisy.programming.kicks-ass.net> References: <20250312182525.4078433-1-kan.liang@linux.intel.com> <20250312190533.GA10453@noisy.programming.kicks-ass.net> <702802d2-7318-4575-81ac-4fad6f8ff42f@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <702802d2-7318-4575-81ac-4fad6f8ff42f@linux.intel.com> On Wed, Mar 12, 2025 at 03:41:06PM -0400, Liang, Kan wrote: > The kmem_cache is introduced to address the alignment requirement for > Arch LBR. > https://lore.kernel.org/lkml/159420190705.4006.11190540790919295173.tip-bot2@tip-bot2/ Urgh, okay. Please stick that in a comment somewhere.