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 AB65DC433F5 for ; Thu, 23 Dec 2021 06:48:27 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3CD226B0072; Thu, 23 Dec 2021 01:48:27 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 37D7A6B0073; Thu, 23 Dec 2021 01:48:27 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 26CE16B0074; Thu, 23 Dec 2021 01:48:27 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0192.hostedemail.com [216.40.44.192]) by kanga.kvack.org (Postfix) with ESMTP id 197946B0072 for ; Thu, 23 Dec 2021 01:48:27 -0500 (EST) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id C00DB8249980 for ; Thu, 23 Dec 2021 06:48:26 +0000 (UTC) X-FDA: 78948130212.12.8768A8E Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf17.hostedemail.com (Postfix) with ESMTP id 2402B40023 for ; Thu, 23 Dec 2021 06:48:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=t26BzzDsNkIKQOy0wDELJ5VwkpFOuQBUXM56pC3ESiE=; b=Nuaj75WCG9R4bHblQBQE+4drxG SmnSEfPePn4JLoz4BjU8UFrDDRwm/kpn62H3OyfNIjfSYrdbMfWog5m7Ka9inOidtUAphtv4UHawh wCi787/6UckLxrww7YvvBnAaAdfxomgWEQOnsl+7+DeKNrFeTthb+SRYx1Nm3UuO5f5Cc4UznhlLS POUOsBzA64+zL+yaKV1hYJaVToCnSOaSvqeXZn4228IhTEB0dlNyGgh/huUzCZO+oUjTBghnOR/ZY Gn1Sz235cqrioiYqRFlweECu9KAM64z4kcFALwykcPIvCx68JKYksuHd72d6DawxHSbsJ0iWJ1gwe tpCHOXmQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1n0Hto-00BwTd-9X; Thu, 23 Dec 2021 06:48:24 +0000 Date: Wed, 22 Dec 2021 22:48:24 -0800 From: Christoph Hellwig To: "Matthew Wilcox (Oracle)" Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH 01/48] filemap: Remove PageHWPoison check from next_uptodate_page() Message-ID: References: <20211208042256.1923824-1-willy@infradead.org> <20211208042256.1923824-2-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211208042256.1923824-2-willy@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 2402B40023 X-Stat-Signature: dd6typhufa9ufzkffd87g8oaksxh658i Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=Nuaj75WC; dmarc=none; spf=none (imf17.hostedemail.com: domain of BATV+873f21062ce73a87fae7+6696+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+873f21062ce73a87fae7+6696+infradead.org+hch@bombadil.srs.infradead.org X-HE-Tag: 1640242093-796053 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Dec 08, 2021 at 04:22:09AM +0000, Matthew Wilcox (Oracle) wrote: > Pages are individually marked as suffering from hardware poisoning. > Checking that the head page is not hardware poisoned doesn't make > sense; we might be after a subpage. We check each page individually > before we use it, so this was an optimisation gone wrong. Looks good, Reviewed-by: Christoph Hellwig