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Christoph Hellwig
99dfc43ecb
Rework the I/O accounting for bio based drivers to use ->bi_bdev. This means all drivers can now simply use bio_start_io_acct to start accounting, and it will take partitions into account automatically. To end I/O account either bio_end_io_acct can be used if the driver never remaps I/O to a different device, or bio_end_io_acct_remapped if the driver did remap the I/O. Signed-off-by: Christoph Hellwig <[email protected]> Acked-by: Tejun Heo <[email protected]> Signed-off-by: Jens Axboe <[email protected]>