From patchwork Wed Aug 23 10:48:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kara X-Patchwork-Id: 13362097 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 34F32C27C40 for ; Wed, 23 Aug 2023 10:50:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234261AbjHWKud (ORCPT ); Wed, 23 Aug 2023 06:50:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34020 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233891AbjHWKuX (ORCPT ); Wed, 23 Aug 2023 06:50:23 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A0304E76; Wed, 23 Aug 2023 03:49:27 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 09A7521F4B; Wed, 23 Aug 2023 10:48:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1692787739; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9YpVuSvngDG3pGKaLigSbJaoVsaNH7Bf2Hd77g+U0+4=; b=1nhTQtEQ1PYaQx4OcfozqY1+wCk+gheyep5AOHjSlVC/mklwJHxOflQKEQCvaiSx4E/iSG O7pJpaL5XFGoRkrjA0zeZ6iNZ+LPhJ0h0jSy2ZsLkVXXmd5a5A81rI5vuKdhE0SLxcVwgF lnjK92kan3cLv9nZeWi9Nyq/FnPitpI= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1692787739; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9YpVuSvngDG3pGKaLigSbJaoVsaNH7Bf2Hd77g+U0+4=; b=DaX4YsmfonE7u3RTh0HgcxhoSp4QLIx3eiLwGCpV2sZzdtJ8Kys2pl//X11+AP4sQqIIs3 BtL7Y+aOKkzlKkCA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id F05BB13458; Wed, 23 Aug 2023 10:48:58 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id HlWrOhrk5WRoIAAAMHmgww (envelope-from ); Wed, 23 Aug 2023 10:48:58 +0000 Received: by quack3.suse.cz (Postfix, from userid 1000) id 778F9A0794; Wed, 23 Aug 2023 12:48:57 +0200 (CEST) From: Jan Kara To: Christian Brauner Cc: Jens Axboe , , , Christoph Hellwig , Jan Kara , Christoph Hellwig Subject: [PATCH 19/29] fs: Convert to bdev_open_by_dev() Date: Wed, 23 Aug 2023 12:48:30 +0200 Message-Id: <20230823104857.11437-19-jack@suse.cz> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230818123232.2269-1-jack@suse.cz> References: <20230818123232.2269-1-jack@suse.cz> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3420; i=jack@suse.cz; h=from:subject; bh=Sa1LjWx2q0nCdmcpYoUPMJV2NPyY7p9AGikLs15F9E8=; b=owEBbQGS/pANAwAIAZydqgc/ZEDZAcsmYgBk5eP+kuYWmjO7zBppke4fDHeis8jnVvbQWT4Fe5HW jwDUwVeJATMEAAEIAB0WIQSrWdEr1p4yirVVKBycnaoHP2RA2QUCZOXj/gAKCRCcnaoHP2RA2ZPRB/ 40wBpl0fzy4xQBo9nMDlUTKH7Mu8fvTXIqd1HBxWYe2WyqbQvcNvburyZ2Vquvf8zkNB3NcH97j4mr BHekJ5lvFxPbc3WjZA2qb/DnJPPeC2FYqjQcGdXSfmA+VioHC5koYwHEcvFUlVlUrQTraOajIduxvx k0dkpXxC0JB0tZ2a6AXypNS9Xem8ZMuMM9DrxYvC2wE0GjZnkVIPK/cafZq04M35yLlr+WvZtaIaFF gJ7mQar6xx2ataSqh/esawtKllalWhTkMcdS5VuIy0XHhsTnFAZAxfOjCAKBUjUM2u1665KdxMzQM7 kRjbJJe176hNeHRbFzl7HqYZrSpJYQ X-Developer-Key: i=jack@suse.cz; a=openpgp; fpr=93C6099A142276A28BBE35D815BC833443038D8C Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Convert mount code to use bdev_open_by_dev() and propagate the handle around to bdev_release(). Acked-by: Christoph Hellwig Signed-off-by: Jan Kara Reviewed-by: Christian Brauner --- fs/cramfs/inode.c | 2 +- fs/romfs/super.c | 2 +- fs/super.c | 15 +++++++++------ include/linux/fs.h | 1 + 4 files changed, 12 insertions(+), 8 deletions(-) diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 5ee7d7bbb361..2fbf97077ce9 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -495,7 +495,7 @@ static void cramfs_kill_sb(struct super_block *sb) sb->s_mtd = NULL; } else if (IS_ENABLED(CONFIG_CRAMFS_BLOCKDEV) && sb->s_bdev) { sync_blockdev(sb->s_bdev); - blkdev_put(sb->s_bdev, sb); + bdev_release(sb->s_bdev_handle); } kfree(sbi); } diff --git a/fs/romfs/super.c b/fs/romfs/super.c index 5c35f6c76037..b1bdfbc211c3 100644 --- a/fs/romfs/super.c +++ b/fs/romfs/super.c @@ -593,7 +593,7 @@ static void romfs_kill_sb(struct super_block *sb) #ifdef CONFIG_ROMFS_ON_BLOCK if (sb->s_bdev) { sync_blockdev(sb->s_bdev); - blkdev_put(sb->s_bdev, sb); + bdev_release(sb->s_bdev_handle); } #endif } diff --git a/fs/super.c b/fs/super.c index 1bea34be5d43..82757f3e0f1b 100644 --- a/fs/super.c +++ b/fs/super.c @@ -1250,14 +1250,16 @@ int setup_bdev_super(struct super_block *sb, int sb_flags, struct fs_context *fc) { blk_mode_t mode = sb_open_mode(sb_flags); + struct bdev_handle *bdev_handle; struct block_device *bdev; - bdev = blkdev_get_by_dev(sb->s_dev, mode, sb, &fs_holder_ops); - if (IS_ERR(bdev)) { + bdev_handle = bdev_open_by_dev(sb->s_dev, mode, sb, &fs_holder_ops); + if (IS_ERR(bdev_handle)) { if (fc) errorf(fc, "%s: Can't open blockdev", fc->source); - return PTR_ERR(bdev); + return PTR_ERR(bdev_handle); } + bdev = bdev_handle->bdev; /* * This really should be in blkdev_get_by_dev, but right now can't due @@ -1265,7 +1267,7 @@ int setup_bdev_super(struct super_block *sb, int sb_flags, * writable from userspace even for a read-only block device. */ if ((mode & BLK_OPEN_WRITE) && bdev_read_only(bdev)) { - blkdev_put(bdev, sb); + bdev_release(bdev_handle); return -EACCES; } @@ -1281,10 +1283,11 @@ int setup_bdev_super(struct super_block *sb, int sb_flags, mutex_unlock(&bdev->bd_fsfreeze_mutex); if (fc) warnf(fc, "%pg: Can't mount, blockdev is frozen", bdev); - blkdev_put(bdev, sb); + bdev_release(bdev_handle); return -EBUSY; } spin_lock(&sb_lock); + sb->s_bdev_handle = bdev_handle; sb->s_bdev = bdev; sb->s_bdi = bdi_get(bdev->bd_disk->bdi); if (bdev_stable_writes(bdev)) @@ -1418,7 +1421,7 @@ void kill_block_super(struct super_block *sb) generic_shutdown_super(sb); if (bdev) { sync_blockdev(bdev); - blkdev_put(bdev, sb); + bdev_release(sb->s_bdev_handle); } } diff --git a/include/linux/fs.h b/include/linux/fs.h index 22b59cd36963..b5c61107bd6d 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1187,6 +1187,7 @@ struct super_block { struct hlist_bl_head s_roots; /* alternate root dentries for NFS */ struct list_head s_mounts; /* list of mounts; _not_ for fs use */ struct block_device *s_bdev; + struct bdev_handle *s_bdev_handle; struct backing_dev_info *s_bdi; struct mtd_info *s_mtd; struct hlist_node s_instances;