tree d6ec7e9b0e0ddbfa1acf59819caca071b1e1f29c
parent 5d1a536621403b442eef60ddd35e6b7a46fb04b7
author Aaron Carroll <aaronc@gelato.unsw.edu.au> 1193737213 +0100
committer Jens Axboe <axboe@carl.home.kernel.dk> 1193989645 +0100

Deadline iosched: Reset batch for ordered requests

The deadline I/O scheduler does not reset the batch count when starting
a new batch at a higher-sectored request.  This means the second and
subsequent batch in the same data direction will never exceed a single
request in size whenever higher-sectored requests are pending.

This patch gives new batches in the same data direction as old ones
their full quota of requests by resetting the batch count.

Signed-off-by: Aaron Carroll <aaronc@gelato.unsw.edu.au>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>