From patchwork Sat Aug 27 06:58:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Biggers X-Patchwork-Id: 12956802 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 601CEC65C0D for ; Sat, 27 Aug 2022 07:01:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233089AbiH0HBl (ORCPT ); Sat, 27 Aug 2022 03:01:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54276 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232911AbiH0HBg (ORCPT ); Sat, 27 Aug 2022 03:01:36 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9359D24F3E; Sat, 27 Aug 2022 00:01:35 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 26D55B82783; Sat, 27 Aug 2022 07:01:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 88DB1C43470; Sat, 27 Aug 2022 07:01:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1661583693; bh=0xuShhm2dGVlVdS35K/psQMXih/7EA3C0nxlthmzrd0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pedZYWIoNW+9lCIp8+WakPS5vapg3nIeS1G4/mysv6CfIZndcJTyFf+55ZsuA+aoX Xdxp1ueHBL0vwGMKdhP0aU5LtCqsXe8WsW8LhTz8F7hpOiJnrPVkiKkzcu3lp+y0E7 llWBt5CZ4CIdjIhOsdRdJYxaxOIwvwI9gQB12Oj/V61yCCzR2tpROudUnv4gbqNlLl 8UlxBfBIyMt3TQf7vsDjgDAw3nyZWmoGWLAu9ea3XxRiDAsbBFueT1r59i4i2W4diN G5c+MDjU1hRMW+b3c3tnXbKIMnNrsaWpg/h9XW7XmikreLpz2cX9EqaF6JT/a64zmD s/bGohFpVzqcg== From: Eric Biggers To: linux-fsdevel@vger.kernel.org Cc: linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, linux-api@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, Keith Busch Subject: [PATCH v5 8/8] xfs: support STATX_DIOALIGN Date: Fri, 26 Aug 2022 23:58:51 -0700 Message-Id: <20220827065851.135710-9-ebiggers@kernel.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220827065851.135710-1-ebiggers@kernel.org> References: <20220827065851.135710-1-ebiggers@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fscrypt@vger.kernel.org From: Eric Biggers Add support for STATX_DIOALIGN to xfs, so that direct I/O alignment restrictions are exposed to userspace in a generic way. Signed-off-by: Eric Biggers Reviewed-by: Darrick J. Wong Reviewed-by: Christoph Hellwig --- fs/xfs/xfs_iops.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 45518b8c613c9a..f51c60d7e2054a 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -604,6 +604,16 @@ xfs_vn_getattr( stat->blksize = BLKDEV_IOSIZE; stat->rdev = inode->i_rdev; break; + case S_IFREG: + if (request_mask & STATX_DIOALIGN) { + struct xfs_buftarg *target = xfs_inode_buftarg(ip); + struct block_device *bdev = target->bt_bdev; + + stat->result_mask |= STATX_DIOALIGN; + stat->dio_mem_align = bdev_dma_alignment(bdev) + 1; + stat->dio_offset_align = bdev_logical_block_size(bdev); + } + fallthrough; default: stat->blksize = xfs_stat_blksize(ip); stat->rdev = 0;