drbd: Implemented priority inheritance for resync requests

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We only issue resync requests if there is no significant application IO
going on. = Application IO has higher priority than resnyc IO.

If application IO can not be started because the resync process locked
an resync_lru entry, start the IO operations necessary to release the
lock ASAP.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

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This commit is contained in:

Philipp Reisner 2010-11-07 15:56:29 +01:00

parent 59817f4fab

commit e3555d8545

4 changed files with 27 additions and 20 deletions

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4

drivers/block/drbd/drbd_actlog.c

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3

drivers/block/drbd/drbd_int.h

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22

drivers/block/drbd/drbd_receiver.c

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18

drivers/block/drbd/drbd_worker.c

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