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dm table: add dm_table_run_md_queue_async

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Introduce dm_table_run_md_queue_async() to run the request_queue of the
mapped_device associated with a request-based DM table.

Also add dm_md_get_queue() wrapper to extract the request_queue from a
mapped_device.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
This commit is contained in:
Mike Snitzer
2014-02-28 15:33:43 +01:00
parent 17f4ff45b5
commit 9974fa2c6a
4 changed files with 30 additions and 0 deletions
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5
include/linux/device-mapper.h
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@@ -462,6 +462,11 @@ struct mapped_device *dm_table_get_md(struct dm_table *t);
*/
void dm_table_event(struct dm_table *t);
/*
* Run the queue for request-based targets.
*/
void dm_table_run_md_queue_async(struct dm_table *t);
/*
* The device must be suspended before calling this method.
* Returns the previous table, which the caller must destroy.