From patchwork Sat Jan 21 06:50:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13110966 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 EC03DC38141 for ; Sat, 21 Jan 2023 06:52:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230096AbjAUGwL (ORCPT ); Sat, 21 Jan 2023 01:52:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39522 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229726AbjAUGvt (ORCPT ); Sat, 21 Jan 2023 01:51:49 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A3BA27314F; Fri, 20 Jan 2023 22:51:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=0312r6klURUzJVyZBwPcovoZhH/rvxqC5tpxOAFDFM8=; b=vkEtXMXvka9AlkCkqqQb4vERv8 3IO9rs3bA1Tc8aFf5fGbSlx/f21d9uG1UtXjS+Ozi09MB9cguykISDmTcEdjilU6woS9o1J6BRFEp ev6jzRdhB9RM9EBIphOM8NZ/SbX1Z8IdHJtUoMIlXwmV36hz/J3ctdTi7MxIA48lUk5SOyzFLy2CL hIQF3YE1DQG/mnps5apdCEEAc4FcDucF3E3cVhKfnAR3Fb1uNtekB2De1EHVulNcaqxFOOgp8jmA1 fPuLTTlnaQBpouAlpQyIfD9mxTKtnmORCuW/h/rpoVIRYLNRqcIkBTYbmMTgORH8s0RyPGfVw76j7 6N7tmXcQ==; Received: from [2001:4bb8:19a:2039:6754:cc81:9ace:36fc] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pJ7iu-00DRZO-Ry; Sat, 21 Jan 2023 06:51:33 +0000 From: Christoph Hellwig To: Chris Mason , Josef Bacik , David Sterba Cc: Damien Le Moal , Naohiro Aota , Johannes Thumshirn , Qu Wenruo , Jens Axboe , "Darrick J. Wong" , linux-block@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 22/34] btrfs: support cloned bios in btree_csum_one_bio Date: Sat, 21 Jan 2023 07:50:19 +0100 Message-Id: <20230121065031.1139353-23-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230121065031.1139353-1-hch@lst.de> References: <20230121065031.1139353-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org To allow splitting bios in btrfs_submit_bio, btree_csum_one_bio needs to be able to handle cloned bios. As btree_csum_one_bio is always called before handing the bio to the block layer that is trivially done by using bio_for_each_segment instead of bio_for_each_segment_all. Also switch the function to take a btrfs_bio and use that to derive the fs_info. Signed-off-by: Christoph Hellwig Reviewed-by: Josef Bacik Reviewed-by: Johannes Thumshirn --- fs/btrfs/bio.c | 2 +- fs/btrfs/disk-io.c | 14 ++++++-------- fs/btrfs/disk-io.h | 2 +- 3 files changed, 8 insertions(+), 10 deletions(-) diff --git a/fs/btrfs/bio.c b/fs/btrfs/bio.c index 84673f552bb345..c7522ac7e0e71c 100644 --- a/fs/btrfs/bio.c +++ b/fs/btrfs/bio.c @@ -441,7 +441,7 @@ static void __btrfs_submit_bio(struct bio *bio, struct btrfs_io_context *bioc, static blk_status_t btrfs_bio_csum(struct btrfs_bio *bbio) { if (bbio->bio.bi_opf & REQ_META) - return btree_csum_one_bio(&bbio->bio); + return btree_csum_one_bio(bbio); return btrfs_csum_one_bio(bbio); } diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 9ad6e85fcee6e9..2ae329b5ce9804 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -438,17 +438,15 @@ static int csum_dirty_buffer(struct btrfs_fs_info *fs_info, struct bio_vec *bvec return csum_one_extent_buffer(eb); } -blk_status_t btree_csum_one_bio(struct bio *bio) +blk_status_t btree_csum_one_bio(struct btrfs_bio *bbio) { - struct bio_vec *bvec; - struct btrfs_root *root; + struct btrfs_fs_info *fs_info = bbio->inode->root->fs_info; + struct bvec_iter iter; + struct bio_vec bv; int ret = 0; - struct bvec_iter_all iter_all; - ASSERT(!bio_flagged(bio, BIO_CLONED)); - bio_for_each_segment_all(bvec, bio, iter_all) { - root = BTRFS_I(bvec->bv_page->mapping->host)->root; - ret = csum_dirty_buffer(root->fs_info, bvec); + bio_for_each_segment(bv, &bbio->bio, iter) { + ret = csum_dirty_buffer(fs_info, &bv); if (ret) break; } diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index ac55f8ec3a31a7..f2dd4c6d9c258b 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -114,7 +114,7 @@ int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid, int btrfs_read_extent_buffer(struct extent_buffer *buf, struct btrfs_tree_parent_check *check); -blk_status_t btree_csum_one_bio(struct bio *bio); +blk_status_t btree_csum_one_bio(struct btrfs_bio *bbio); int btrfs_alloc_log_tree_node(struct btrfs_trans_handle *trans, struct btrfs_root *root); int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans,