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xfs: close the RT and log block devices in xfs_free_buftarg
Closing the block devices logically belongs into xfs_free_buftarg, So instead of open coding it in the caller move it there and add a check for the s_bdev so that the main device isn't close as that's done by the VFS helper. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: "Darrick J. Wong" <djwong@kernel.org> Message-Id: <20230809220545.1308228-6-hch@lst.de> Signed-off-by: Christian Brauner <brauner@kernel.org>
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1 changed files with 5 additions and 0 deletions
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@ -1938,6 +1938,8 @@ void
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xfs_free_buftarg(
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struct xfs_buftarg *btp)
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{
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struct block_device *bdev = btp->bt_bdev;
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unregister_shrinker(&btp->bt_shrinker);
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ASSERT(percpu_counter_sum(&btp->bt_io_count) == 0);
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percpu_counter_destroy(&btp->bt_io_count);
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@ -1946,6 +1948,9 @@ xfs_free_buftarg(
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blkdev_issue_flush(btp->bt_bdev);
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invalidate_bdev(btp->bt_bdev);
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fs_put_dax(btp->bt_daxdev, btp->bt_mount);
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/* the main block device is closed by kill_block_super */
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if (bdev != btp->bt_mount->m_super->s_bdev)
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blkdev_put(bdev, btp->bt_mount);
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kmem_free(btp);
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}
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