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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7950AC4332F for ; Tue, 18 Jan 2022 13:13:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241865AbiARNNW (ORCPT ); Tue, 18 Jan 2022 08:13:22 -0500 Received: from out4436.biz.mail.alibaba.com ([47.88.44.36]:62358 "EHLO out4436.biz.mail.alibaba.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242879AbiARNMw (ORCPT ); Tue, 18 Jan 2022 08:12:52 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R211e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04395;MF=jefflexu@linux.alibaba.com;NM=1;PH=DS;RN=12;SR=0;TI=SMTPD_---0V2C2axr_1642511556; Received: from localhost(mailfrom:jefflexu@linux.alibaba.com fp:SMTPD_---0V2C2axr_1642511556) by smtp.aliyun-inc.com(127.0.0.1); Tue, 18 Jan 2022 21:12:37 +0800 From: Jeffle Xu To: dhowells@redhat.com, linux-cachefs@redhat.com, xiang@kernel.org, chao@kernel.org, linux-erofs@lists.ozlabs.org Cc: linux-fsdevel@vger.kernel.org, joseph.qi@linux.alibaba.com, bo.liu@linux.alibaba.com, tao.peng@linux.alibaba.com, gerry@linux.alibaba.com, eguan@linux.alibaba.com, linux-kernel@vger.kernel.org Subject: [PATCH v2 17/20] erofs: register cookie context for data blobs Date: Tue, 18 Jan 2022 21:12:13 +0800 Message-Id: <20220118131216.85338-18-jefflexu@linux.alibaba.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220118131216.85338-1-jefflexu@linux.alibaba.com> References: <20220118131216.85338-1-jefflexu@linux.alibaba.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Similar to the multi device mode, erofs could be mounted from multiple blob files (one bootstrap blob file and optional multiple data blob files). In this case, each device slot contains the path of corresponding data blob file. This patch registers corresponding cookie context for each data blob file. Signed-off-by: Jeffle Xu --- fs/erofs/internal.h | 1 + fs/erofs/super.c | 27 +++++++++++++++++++-------- 2 files changed, 20 insertions(+), 8 deletions(-) diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index 548f928b0ded..5d514c7b73cc 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -53,6 +53,7 @@ struct erofs_device_info { struct block_device *bdev; struct dax_device *dax_dev; u64 dax_part_off; + struct erofs_fscache_context *ctx; u32 blocks; u32 mapped_blkaddr; diff --git a/fs/erofs/super.c b/fs/erofs/super.c index 8c5783c6f71f..f058a04a00c7 100644 --- a/fs/erofs/super.c +++ b/fs/erofs/super.c @@ -250,6 +250,7 @@ static int erofs_init_devices(struct super_block *sb, down_read(&sbi->devs->rwsem); idr_for_each_entry(&sbi->devs->tree, dif, id) { struct block_device *bdev; + struct erofs_fscache_context *ctx; ptr = erofs_read_metabuf(&buf, sb, erofs_blknr(pos), EROFS_KMAP); @@ -259,15 +260,24 @@ static int erofs_init_devices(struct super_block *sb, } dis = ptr + erofs_blkoff(pos); - bdev = blkdev_get_by_path(dif->path, - FMODE_READ | FMODE_EXCL, - sb->s_type); - if (IS_ERR(bdev)) { - err = PTR_ERR(bdev); - break; + if (erofs_bdev_mode(sb)) { + bdev = blkdev_get_by_path(dif->path, + FMODE_READ | FMODE_EXCL, + sb->s_type); + if (IS_ERR(bdev)) { + err = PTR_ERR(bdev); + break; + } + dif->bdev = bdev; + dif->dax_dev = fs_dax_get_by_bdev(bdev, &dif->dax_part_off); + } else { + ctx = erofs_fscache_get_ctx(sb, dif->path, false); + if (IS_ERR(ctx)) { + err = PTR_ERR(ctx); + break; + } + dif->ctx = ctx; } - dif->bdev = bdev; - dif->dax_dev = fs_dax_get_by_bdev(bdev, &dif->dax_part_off); dif->blocks = le32_to_cpu(dis->blocks); dif->mapped_blkaddr = le32_to_cpu(dis->mapped_blkaddr); sbi->total_blocks += dif->blocks; @@ -694,6 +704,7 @@ static int erofs_release_device_info(int id, void *ptr, void *data) { struct erofs_device_info *dif = ptr; + erofs_fscache_put_ctx(dif->ctx); fs_put_dax(dif->dax_dev); if (dif->bdev) blkdev_put(dif->bdev, FMODE_READ | FMODE_EXCL); -- 2.27.0