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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6B0BDC3DA41 for ; Wed, 10 Jul 2024 00:13:49 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 02D386B0088; Tue, 9 Jul 2024 20:13:49 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id F10006B0092; Tue, 9 Jul 2024 20:13:48 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DFEB96B0093; Tue, 9 Jul 2024 20:13:48 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id C09EA6B008C for ; Tue, 9 Jul 2024 20:13:48 -0400 (EDT) Received: from smtpin18.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 2B5B01A0C25 for ; Wed, 10 Jul 2024 00:13:48 +0000 (UTC) X-FDA: 82321919736.18.24521DA Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf01.hostedemail.com (Postfix) with ESMTP id 361194000D for ; Wed, 10 Jul 2024 00:13:45 +0000 (UTC) Authentication-Results: imf01.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=JxhNR7St; spf=none (imf01.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1720570411; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=EibiTzLr2qa+oH2HKV/cZW2EB7ch+eovc3WHYxkuENw=; b=jkqMYRHpIjkRTgIt7vU5g+GVKuP0t3yINjXdhjR6OUoU1+nEZJwsm5DQWtimec8HCCxPzU I5hAfMOE2SfIHNC2sLAYrF15SfD6nmabw7C2PrGw9VtSOsRi+H0NDXDoLUW0826oRv52dV Z4AxOU4v3K38Vd4rNTAns6aIum3Jy24= ARC-Authentication-Results: i=1; imf01.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=JxhNR7St; spf=none (imf01.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1720570411; a=rsa-sha256; cv=none; b=fW/hPWlz4i9IwYBCUcZVvBruBU4wLbmP70PVgPQAoeYt9hfp0f3kw2MzOQ0uW6l2hgi0ii P3ZykxJVVyK5zw+4PUPeGUzqUbUFtu/uz0FrIjM/3y80rF2y58XaPkq5/U8IWOiQKlJQix aqu4hEC5azJVXI/rzKQ/i8pJGLDzrFM= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; 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=EibiTzLr2qa+oH2HKV/cZW2EB7ch+eovc3WHYxkuENw=; b=JxhNR7St7Jz6DRFiCjc1RIjZ3/ iaX4ybgaOmhY1D5W64YQ+GArS2tz57+jlYuy4dJlXXLd3oC6IqI9+XOu1T8CkOQfX/Y8TxT4+fcBJ rjX3NKAfrdu3fYfOKbMcokyUdTq5jqerg77ZVuOwJlS8CXsZLiaVcqgdWE/7omuwpvc7VvZ0vpZVJ DjVGDlQleyQVEfSHFu3+9umlGSOra/yHYiSUdJud3t1OMjDVHY8Fsl/EXrjQDtEbt6XOe2D/HoNUH u6D/8Q9T0GtuNRonWWWsxF39yrJ2ZPFfxuUGIuEM72DwAQFM1GIlM+rrTqbTN3S4CDdSFHGi4Lqpg Gc6R6BRw==; Received: from willy by casper.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1sRKxr-00000008VZH-3cTz; Wed, 10 Jul 2024 00:13:43 +0000 Date: Wed, 10 Jul 2024 01:13:43 +0100 From: Matthew Wilcox To: Ram Tummala Cc: akpm@linux-foundation.org, fengwei.yin@intel.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, apopple@nvidia.com, stable@vger.kernel.org Subject: Re: [PATCH] mm: Fix PTE_AF handling in fault path on architectures with HW AF support Message-ID: References: <20240710000942.623704-1-rtummala@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240710000942.623704-1-rtummala@nvidia.com> X-Rspamd-Server: rspam03 X-Rspam-User: X-Rspamd-Queue-Id: 361194000D X-Stat-Signature: wm1keobu7t4yuxc57mr159tgiouqepcs X-HE-Tag: 1720570425-532949 X-HE-Meta: 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 RHjMGvRZ CjY4ncHAqmVGy+Db90SMHSM0/pv/iVRtXEyEvxv4CSy9efYmuvZODD/U3SCESmDRJdxehN5popcmGsvgTkYygRVa215quBIPywlmW/bQeKmFsU+7T1vFJWBsTrjUXf5NkGcokTPai00y/UhnuhSX3wci8CEQGA0Dq0t7xgNUVQOzfzU71DK5BdC8Fn78cyvW4/c3g/K42Ubbr16ZLm1hlDjwx3PneObKCtYI0Gi3LjpE2X3985/iwl/4KVKsiz+9LD7kh X-Bogosity: Ham, tests=bogofilter, spamicity=0.000007, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Jul 09, 2024 at 05:09:42PM -0700, Ram Tummala wrote: > Commit 3bd786f76de2 ("mm: convert do_set_pte() to set_pte_range()") > replaced do_set_pte() with set_pte_range() and that introduced a regression > in the following faulting path of non-anonymous vmas on CPUs with HW AF At no point in this do you say what "AF" stands for.