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authorJens Axboe <axboe@suse.de>2005-10-20 10:42:29 -0400
committerJens Axboe <axboe@nelson.home.kernel.dk>2005-10-28 02:45:08 -0400
commitb4878f245ec8e168cdd1f170f823a750b7dd4af5 (patch)
treede784c2a7e1174e4843807998f0356bf92ee78be /drivers/net/sunbmac.h
parentd9ebb192aa13a026edc6faff137dcb14f2c91731 (diff)
[PATCH] 02/05: update ioscheds to use generic dispatch queue
This patch updates all four ioscheds to use generic dispatch queue. There's one behavior change in as-iosched. * In as-iosched, when force dispatching (ELEVATOR_INSERT_BACK), batch_data_dir is reset to REQ_SYNC and changed_batch and new_batch are cleared to zero. This prevernts AS from doing incorrect update_write_batch after the forced dispatched requests are finished. * In cfq-iosched, cfqd->rq_in_driver currently counts the number of activated (removed) requests to determine whether queue-kicking is needed and cfq_max_depth has been reached. With generic dispatch queue, I think counting the number of dispatched requests would be more appropriate. * cfq_max_depth can be lowered to 1 again. Original from Tejun Heo, modified version applied. Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'drivers/net/sunbmac.h')
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