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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Josef Bacik <josef@toxicpanda.com>,
	David Sterba <dsterba@suse.com>,
	Naohiro Aota <naohiro.aota@wdc.com>,
	linux-block@vger.kernel.org, linux-btrfs@vger.kernel.org
Subject: [PATCH 9/9] block: remove bdput
Date: Thu, 22 Jul 2021 09:54:02 +0200	[thread overview]
Message-ID: <20210722075402.983367-10-hch@lst.de> (raw)
In-Reply-To: <20210722075402.983367-1-hch@lst.de>

Now that we've stopped using inode references for anything meaninful
in the block layer get rid of the helper to put it and just open code
the call to iput on the block_device inode.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
---
 block/genhd.c           | 4 ++--
 block/partitions/core.c | 2 +-
 fs/block_dev.c          | 6 ------
 include/linux/blkdev.h  | 1 -
 4 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/block/genhd.c b/block/genhd.c
index 716f5ca479ad..5dbb99b57b33 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1076,7 +1076,7 @@ static void disk_release(struct device *dev)
 	xa_destroy(&disk->part_tbl);
 	if (test_bit(GD_QUEUE_REF, &disk->state) && disk->queue)
 		blk_put_queue(disk->queue);
-	bdput(disk->part0);	/* frees the disk */
+	iput(disk->part0->bd_inode);	/* frees the disk */
 }
 struct class block_class = {
 	.name		= "block",
@@ -1261,7 +1261,7 @@ struct gendisk *__alloc_disk_node(int minors, int node_id)
 
 out_destroy_part_tbl:
 	xa_destroy(&disk->part_tbl);
-	bdput(disk->part0);
+	iput(disk->part0->bd_inode);
 out_free_disk:
 	kfree(disk);
 	return NULL;
diff --git a/block/partitions/core.c b/block/partitions/core.c
index 4f7a1a9cd544..2415bffc2771 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -262,7 +262,7 @@ static void part_release(struct device *dev)
 	if (MAJOR(dev->devt) == BLOCK_EXT_MAJOR)
 		blk_free_ext_minor(MINOR(dev->devt));
 	put_disk(dev_to_bdev(dev)->bd_disk);
-	bdput(dev_to_bdev(dev));
+	iput(dev_to_bdev(dev)->bd_inode);
 }
 
 static int part_uevent(struct device *dev, struct kobj_uevent_env *env)
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 4f2c4e9e84f5..6658f40ae492 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -934,12 +934,6 @@ long nr_blockdev_pages(void)
 	return ret;
 }
 
-void bdput(struct block_device *bdev)
-{
-	iput(bdev->bd_inode);
-}
-EXPORT_SYMBOL(bdput);
- 
 /**
  * bd_may_claim - test whether a block device can be claimed
  * @bdev: block device of interest
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 98772da38bb1..b94de1d194b8 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1984,7 +1984,6 @@ void blkdev_put_no_open(struct block_device *bdev);
 struct block_device *bdev_alloc(struct gendisk *disk, u8 partno);
 void bdev_add(struct block_device *bdev, dev_t dev);
 struct block_device *I_BDEV(struct inode *inode);
-void bdput(struct block_device *);
 int truncate_bdev_range(struct block_device *bdev, fmode_t mode, loff_t lstart,
 		loff_t lend);
 
-- 
2.30.2


  parent reply	other threads:[~2021-07-22  7:58 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-22  7:53 fixes and cleanups for block_device refcounting v2 Christoph Hellwig
2021-07-22  7:53 ` [PATCH 1/9] block: delay freeing the gendisk Christoph Hellwig
2021-07-22  7:53 ` [PATCH 2/9] block: assert the locking state in delete_partition Christoph Hellwig
2021-07-22 18:38   ` Chaitanya Kulkarni
2021-07-22  7:53 ` [PATCH 3/9] block: unhash the whole device inode earlier Christoph Hellwig
2021-07-22  8:19   ` Ming Lei
2021-07-22 13:12     ` Christoph Hellwig
2021-07-22  7:53 ` [PATCH 4/9] block: allocate bd_meta_info later in add_partitions Christoph Hellwig
2021-07-22  8:32   ` Ming Lei
2021-07-22  7:53 ` [PATCH 5/9] block: change the refcounting for partitions Christoph Hellwig
2021-07-22  8:41   ` Ming Lei
2021-07-22 13:12     ` Christoph Hellwig
2021-07-22  7:53 ` [PATCH 6/9] btrfs: store a block_device in struct btrfs_ordered_extent Christoph Hellwig
2021-07-22 12:58   ` David Sterba
2021-07-22 13:04     ` Christoph Hellwig
2021-07-22  7:54 ` [PATCH 7/9] loop: don't grab a reference to the block device Christoph Hellwig
2021-07-22  8:57   ` Ming Lei
2021-07-22 18:40   ` Chaitanya Kulkarni
2021-07-22  7:54 ` [PATCH 8/9] block: remove bdgrab Christoph Hellwig
2021-07-22  7:54 ` Christoph Hellwig [this message]
2021-07-22 18:40   ` [PATCH 9/9] block: remove bdput Chaitanya Kulkarni
2021-07-28  1:39 ` fixes and cleanups for block_device refcounting v2 Jens Axboe

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