From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CF267C77B7F for ; Wed, 17 May 2023 12:13:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=+z4iZgjdKRlvDGYD8SoqTLVG81PCrVxadNUo3VzlCNI=; b=wfoqV/DFWJFwFx CCL3HUIuLkkMv3cjpy9Y2ST+daHOSu41pBtZimAXWoE1yljOBqgpR9hOGodOaOYoRkG/IjmeEJVlR LtvoOWYqNO4mfJ3M8EXcoOdmr2LjeyL+h79Q2883+F21vhMkdAJVxtyL37v1ZCTEQorouNRgFuAvq /l6Y92MqQt5eQZYdPgU9GRTAky6XpfVsMKDLRFAJFNcVjfgw2Bd/xN0/ZHUFTBhVx/kV6AifBJ0cL 7mMBXru5uFcvcU/2MXW3qw4N2mexnoO/vKK5tIqeyc448aGhbKrcIxBkmzTFV6BymW7T7YRIDFEsz aBEeahUjyHtTWcy+dXKw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pzG1a-009lTV-1D; Wed, 17 May 2023 12:12:58 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:32c8:5054:ff:fe00:142]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pzG1X-009lSF-2N for linux-arm-kernel@lists.infradead.org; Wed, 17 May 2023 12:12:57 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=ALHd751nFl0qw7F9nXGVSspfC6YQ9gxauELBH3fu8r4=; b=eDFM3G5577zVu2Jy6ZosQsUkX4 JTbu0XPhOVB91XhkZkQ1KLYGmYOqX3fXcM+AeNs6bHKHePlaTnNvp7GeokXBw+a7qI1cCn1Z49Dlt Xct65FCJhOltYJpptQ7SJ2BOpvLGp8aU7qKPqLxVRRYxQl27MBLgFoxdPCe7YPW5RjJ4KnkgSp/Oz VoG+qH3ztb7wHlB/KWqETCMBF/ltJaIBL+LDW9odFeUruN8zR7AKX+6VTwF9NhwhQ/qeCMY80kuUU Y3OcolcRqV+Q3wppO8xxAMdAwAWENl96Vqe0+zfaLFW5GKFlgqzmfeo35kpoEOdgwfwmHrS3he/Gl ntcvf+Hw==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:42516) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1pzG1P-0007kZ-Gr; Wed, 17 May 2023 13:12:47 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1pzG1N-0001qW-An; Wed, 17 May 2023 13:12:45 +0100 Date: Wed, 17 May 2023 13:12:45 +0100 From: "Russell King (Oracle)" To: Nadav Amit Cc: Thomas Gleixner , Uladzislau Rezki , Andrew Morton , linux-mm , Christoph Hellwig , Lorenzo Stoakes , Peter Zijlstra , Baoquan He , John Ogness , linux-arm-kernel@lists.infradead.org, Mark Rutland , Marc Zyngier , x86@kernel.org Subject: Re: Excessive TLB flush ranges Message-ID: References: <87cz308y3s.ffs@tglx> <87y1lo7a0z.ffs@tglx> <87o7mk733x.ffs@tglx> <7ED917BC-420F-47D4-8956-8984205A75F0@gmail.com> <87bkik6pin.ffs@tglx> <87353v7qms.ffs@tglx> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230517_051255_772021_AEEE8B05 X-CRM114-Status: UNSURE ( 9.53 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gVHVlLCBNYXkgMTYsIDIwMjMgYXQgMDY6MjM6MjdQTSAtMDcwMCwgTmFkYXYgQW1pdCB3cm90 ZToKPiBJbmRlZWQsIGJ1dCBDaGF0R1BUIHNheXMgKHllcywgSSBzZWUgeW91IG1ha2luZyBmdW4g b2YgbWUgYWxyZWFkeSk6Cj4g4oCcaG93ZXZlciwgdGhpcyBkb2Vzbid0IG1lYW4gSU5WTFBHIGhh cyBubyBpbXBhY3Qgb24gdGhlIHBpcGVsaW5lLiBJTlZMUEcKPiBjYW4gY2F1c2UgYSBwaXBlbGlu ZSBzdGFsbCBiZWNhdXNlIHRoZSBUTEIgZW50cnkgaW52YWxpZGF0aW9uIG11c3QgYmUKPiBjb21w bGV0ZWQgYmVmb3JlIHN1YnNlcXVlbnQgaW5zdHJ1Y3Rpb25zIHRoYXQgbWlnaHQgcmVseSBvbiB0 aGUgVExCIGNhbgo+IGJlIGV4ZWN1dGVkIGNvcnJlY3RseS7igJ0KPiAKPiBTbyBJIGFtIG5vdCBz dXJlIHRoYXQgeW91ciBjbGFpbSBpcyBleGFjdGx5IGNvcnJlY3QuCgpTb3JyeSwgYnV0IGNoYXRn cHQgaGFzIG5vIHBsYWNlIGluIHNlcmlvdXMgZGlzY3Vzc2lvbnMuIFlvdSBkb24ndCBrbm93Cndo ZXJlIGl0cyBnZXR0aW5nIGl0cyBpbmZvcm1hdGlvbiBmcm9tIG9yIGhvdyByZWxpYWJsZSBpdCBp cywgYW5kIHlvdSdsbApvbmx5IG1ha2UgeW91cnNlbGYgbG9vayBzaWxseSBieSBxdW90aW5nIGl0 LgoKU29tZW9uZSByZWNlbnRseSBhc2tlZCBDaGF0R1BUIGFib3V0IG1lLiBBcHBhcmVudGx5IEkg ZGllZCBhIGZldyB5ZWFycwphZ28uIFRoaXMgaXMgbmV3cyB0byBtZS4gSG93ZXZlciwgdGhpcyBp bGx1c3RyYXRlcyBwcmVjaXNlbHkgbXkgcG9pbnQKdGhhdCBjaGF0Z3B0IGNhbiBzcGV3IHV0dGVy IHJ1YmJpc2ggdGhhdCB5b3UndmUgbm8gaWRlYSB3aGVyZSBpdCdzIGdvdAppdCBmcm9tLCBhbmQg YnkgcXVvdGluZyBpdHMgb3V0cHV0IGluIGEgc2VyaW91cyBkaXNjdXNzaW9uLCB5b3Ugb25seQpt YWtlIHlvdXJzZWxmIGxvb2sgc2lsbHkuCgotLSAKUk1LJ3MgUGF0Y2ggc3lzdGVtOiBodHRwczov L3d3dy5hcm1saW51eC5vcmcudWsvZGV2ZWxvcGVyL3BhdGNoZXMvCkZUVFAgaXMgaGVyZSEgODBN YnBzIGRvd24gMTBNYnBzIHVwLiBEZWNlbnQgY29ubmVjdGl2aXR5IGF0IGxhc3QhCgpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVs IG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDov L2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==