On Wed, 23 Aug 2006 11:09:35 -0400 (EDT)
Jason Baron <[email protected]> wrote:
>
> Hi,
>
> In the case below we are locking the whole disk not a partition. This
> change simply brings the code in line with the piece above where when we
> are the 'first' opener, and we are a partition.
>
> thanks,
>
> -Jason
>
> Signed-off-by: Jason Baron <[email protected]>
>
> --- linux-2.6/fs/block_dev.c.bak
> +++ linux-2.6/fs/block_dev.c
> @@ -966,7 +966,7 @@ do_open(struct block_device *bdev, struc
> rescan_partitions(bdev->bd_disk, bdev);
> } else {
> mutex_lock_nested(&bdev->bd_contains->bd_mutex,
> - BD_MUTEX_PARTITION);
> + BD_MUTEX_WHOLE);
> bdev->bd_contains->bd_part_count++;
> mutex_unlock(&bdev->bd_contains->bd_mutex);
> }
This was allegedly (re-re-re-re-)fixed in 2.6.18-rc4-mm2.
lockdep-fix-blkdev_open-warning.patch and
lockdep-fix-blkdev_open-warning-fix.patch.
Is this patch needed in that kernel?
-
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