Commit e455ed22 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

ocfs2: cleanup o2hb_region_dev_store 



Use blkdev_get_by_dev instead of igrab (aka open coded bdgrab) +
blkdev_get.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarJoseph Qi <joseph.qi@linux.alibaba.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 841ab72c

fs/ocfs2/cluster/heartbeat.c

+10 −18
Original line number Diff line number Diff line
@@ -1766,7 +1766,6 @@ static ssize_t o2hb_region_dev_store(struct config_item *item, 
	int sectsize;

	char *p = (char *)page;

	struct fd f;

	struct inode *inode;

	ssize_t ret = -EINVAL;

	int live_threshold;
@@ -1793,20 +1792,16 @@ static ssize_t o2hb_region_dev_store(struct config_item *item, 
	    reg->hr_block_bytes == 0)

		goto out2;



	inode = igrab(f.file->f_mapping->host);

	if (inode == NULL)

	if (!S_ISBLK(f.file->f_mapping->host->i_mode))

		goto out2;



	if (!S_ISBLK(inode->i_mode))

		goto out3;



	reg->hr_bdev = I_BDEV(f.file->f_mapping->host);

	ret = blkdev_get(reg->hr_bdev, FMODE_WRITE | FMODE_READ, NULL);

	if (ret) {

	reg->hr_bdev = blkdev_get_by_dev(f.file->f_mapping->host->i_rdev,

					 FMODE_WRITE | FMODE_READ, NULL);

	if (IS_ERR(reg->hr_bdev)) {

		ret = PTR_ERR(reg->hr_bdev);

		reg->hr_bdev = NULL;

		goto out3;

		goto out2;

	}

	inode = NULL;



	bdevname(reg->hr_bdev, reg->hr_dev_name);
@@ -1909,16 +1904,13 @@ static ssize_t o2hb_region_dev_store(struct config_item *item, 
		       config_item_name(&reg->hr_item), reg->hr_dev_name);



out3:

	iput(inode);

out2:

	fdput(f);

out:

	if (ret < 0) {

		if (reg->hr_bdev) {

		blkdev_put(reg->hr_bdev, FMODE_READ | FMODE_WRITE);

		reg->hr_bdev = NULL;

	}

	}

out2:

	fdput(f);

out:

	return ret;

}