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 21DFEC4345F for ; Sat, 27 Apr 2024 05:12:11 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 93A7F6B0089; Sat, 27 Apr 2024 01:12:10 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8EAC26B008A; Sat, 27 Apr 2024 01:12:10 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7D9646B008C; Sat, 27 Apr 2024 01:12:10 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 60CBC6B0089 for ; Sat, 27 Apr 2024 01:12:10 -0400 (EDT) Received: from smtpin13.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 089C5409EF for ; Sat, 27 Apr 2024 05:12:10 +0000 (UTC) X-FDA: 82054140420.13.56AE4BF Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf30.hostedemail.com (Postfix) with ESMTP id 723F480012 for ; Sat, 27 Apr 2024 05:12:08 +0000 (UTC) Authentication-Results: imf30.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=UUfaZcJn; spf=none (imf30.hostedemail.com: domain of BATV+cfef69f9c3dbeacee83f+7552+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+cfef69f9c3dbeacee83f+7552+infradead.org+hch@bombadil.srs.infradead.org; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1714194728; 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=oxXXlnoPot77a+fvQmA9reMneHMSrAR6fk9Rds04GtI=; b=jVO5oJK/B06u5rdR47lvGyMEwGynqPmB+ETKNuNzvfluLZ8acSh4txXxs3SCWxPkwa3rGa huyMjP916XOSMaaCwjFldlX4iZi75ADE81seduYNCG3zTiuW9JmF3KFRve3xlnuHoiEIWk d2aKWs7uwmwcARwFhMkKYbK7dbvcjhM= ARC-Authentication-Results: i=1; imf30.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=UUfaZcJn; spf=none (imf30.hostedemail.com: domain of BATV+cfef69f9c3dbeacee83f+7552+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+cfef69f9c3dbeacee83f+7552+infradead.org+hch@bombadil.srs.infradead.org; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1714194728; a=rsa-sha256; cv=none; b=zYq77TgnvqfXasqxWzY/ARMgfL/u43u8Q2mf4dVtpI7hUhhVqKXoN4QVFI2uXi8HlnM3/A 7po8eB8xVzEI8f/T8j3uv9ORXFZ9tBSy8jNzGmEqGdPQPDYdJbblEEYBmC8KtKfrV73ugh qdc3aWSQ0LxjkjNIrN/FpCH12RlZd1I= 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=oxXXlnoPot77a+fvQmA9reMneHMSrAR6fk9Rds04GtI=; b=UUfaZcJnJ53B+b0GduvU399iAV SCSZcYaAdxoEBh4BPtjZEp314+5gE5ekYonF6kmrewSca1uEJYQr2era5a2qiJekM3/8Qyth9pQPj pCOxvaLF+JdOhWoKZ50z4H5tknIoecADa+IxwEpW3T/wRAqUSPEmUsRmMbkg0ddXnpmAD1Xjo//B+ 3BsTusR3PaYkr+a/BtDLSQHrfWWdjVsBrlrqVOavasL0QOV/83uZeoZ7m0CYTWWiTlEEHzrbBqhNx Beoedwvj5cIJABy0xyjsnZkJcjaWOJDLE+Ae8J+gBneZEGamVxbUvdgUDo5Zkc78hGmWSzvJuc6vQ 13wZaVJA==; Received: from hch by bombadil.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1s0aLx-0000000ErB1-3M92; Sat, 27 Apr 2024 05:12:01 +0000 Date: Fri, 26 Apr 2024 22:12:01 -0700 From: Christoph Hellwig To: "Pankaj Raghav (Samsung)" Cc: Christoph Hellwig , willy@infradead.org, djwong@kernel.org, brauner@kernel.org, david@fromorbit.com, chandan.babu@oracle.com, akpm@linux-foundation.org, linux-fsdevel@vger.kernel.org, hare@suse.de, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-xfs@vger.kernel.org, mcgrof@kernel.org, gost.dev@samsung.com, p.raghav@samsung.com Subject: Re: [PATCH v4 07/11] iomap: fix iomap_dio_zero() for fs bs > system page size Message-ID: References: <20240425113746.335530-1-kernel@pankajraghav.com> <20240425113746.335530-8-kernel@pankajraghav.com> <20240426114301.rtrqsv653a6vkbh6@quentin> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240426114301.rtrqsv653a6vkbh6@quentin> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Stat-Signature: q3mqe6z7114bxr3og7wpfkcg779b858c X-Rspamd-Queue-Id: 723F480012 X-Rspamd-Server: rspam10 X-Rspam-User: X-HE-Tag: 1714194728-856572 X-HE-Meta: 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 5WXQefLh 4hAFQzgkKJlNc3DX8GciDOmLaL3OtOgpDMYqhKelsBHXiokmVwCFEhTO+oRETUgGgdlXETWWor8qg2liVzmQy+16a0WCDA7/OjmwduYoPb4n4owTqoebTb8yXDhNBISE+cp9PR+HXpeP/EXAv+bJ4e9qJ6a0rufAHr3RT4iVuLr+SfzRPrp0882rBI9iIH7h6iC46YUNramkmC6f+UE3ZjE0juia0+qpnWm9/W8IVh7fhJ+4HcoZOrpFklbLIpxFTKwz3LCu8iTQzEdggDZXMxgb3Pv9cHvZsR0Gi1DDglprQpBbudv+Qd+rTcIBg4BxVHNC2wMVx/nf+YKMarWwWmoU1P1LUOamEQ6bmX7EJHbH74HNEHMHb+3yEJYK+3wDDsYwHhY3YEJOx5hNN6Z/N/4mSXy3JIUqJmlRiGYh8ital11cgMyZiReT3+Q== 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: List-Subscribe: List-Unsubscribe: On Fri, Apr 26, 2024 at 11:43:01AM +0000, Pankaj Raghav (Samsung) wrote: > Because allocating it during runtime will defeat the purpose. Well, what runtime? Either way it seems like we have the infrastructure now based on the comment from willy. > In anycase, I would like to pursue huge_zero_page folio separately > from this series. Also iomap_dio_zero() only pads a fs block with > zeroes, which should never be > 64k for XFS. Only if you are limited to 64k block size.