md: use part_[begin|end]_io_acct instead of disk_[begin|end]_io_acct

This enables proper statistics in /proc/diskstats for md partitions.

Signed-off-by: Song Liu <songliubraving@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Song Liu 2020-08-31 15:27:24 -07:00 • committed by Jens Axboe
commit 00fe60eae9