linux-ext4 - [PATCH 10/12] ext4: use fs_holder

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Date:   Wed,  2 Aug 2023 17:41:29 +0200
From:   Christoph Hellwig <hch@....de>
To:     Al Viro <viro@...iv.linux.org.uk>,
        Christian Brauner <brauner@...nel.org>
Cc:     Jan Kara <jack@...e.cz>, Chris Mason <clm@...com>,
        Josef Bacik <josef@...icpanda.com>,
        David Sterba <dsterba@...e.com>,
        "Theodore Ts'o" <tytso@....edu>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>,
        Ryusuke Konishi <konishi.ryusuke@...il.com>,
        "Darrick J. Wong" <djwong@...nel.org>,
        Jens Axboe <axboe@...nel.dk>, linux-btrfs@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        linux-nilfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-xfs@...r.kernel.org, linux-block@...r.kernel.org
Subject: [PATCH 10/12] ext4: use fs_holder_ops for the log device

Use the generic fs_holder_ops to shut down the file system when the
log device goes away instead of duplicating the logic.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 fs/ext4/super.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 2ccb19d345c6dd..063832e2d12a8e 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1096,15 +1096,6 @@ void ext4_update_dynamic_rev(struct super_block *sb)
 	 */
 }
 
-static void ext4_bdev_mark_dead(struct block_device *bdev)
-{
-	ext4_force_shutdown(bdev->bd_holder, EXT4_GOING_FLAGS_NOLOGFLUSH);
-}
-
-static const struct blk_holder_ops ext4_holder_ops = {
-	.mark_dead		= ext4_bdev_mark_dead,
-};
-
 /*
  * Open the external journal device
  */
@@ -1113,7 +1104,7 @@ static struct block_device *ext4_blkdev_get(dev_t dev, struct super_block *sb)
 	struct block_device *bdev;
 
 	bdev = blkdev_get_by_dev(dev, BLK_OPEN_READ | BLK_OPEN_WRITE, sb,
-				 &ext4_holder_ops);
+				 &fs_holder_ops);
 	if (IS_ERR(bdev))
 		goto fail;
 	return bdev;
-- 
2.39.2