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s390/dasd: Add dasd_sleep_on_queue_interruptible()

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There is dasd_sleep_on() and dasd_sleep_on_interruptible() to start CCW
requests uninterruptible and interruptible. However, there is only
dasd_sleep_on_queue() to start requests from CCW queues uninterruptible.

Add dasd_sleep_on_queue_interruptible() to provide a way to start
requests from CCW queues interruptible. _dasd_sleep_on_queue() already
provides this functionality.

Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Jan Höppner 2019-06-27 14:33:17 +02:00 committed by Vasily Gorbik
parent d7a4434d60
commit bcf36768ea
2 changed files with 10 additions and 0 deletions
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9
drivers/s390/block/dasd.c
View file

@ -2522,6 +2522,15 @@ int dasd_sleep_on_queue(struct list_head *ccw_queue)
}
EXPORT_SYMBOL(dasd_sleep_on_queue);
/*
* Start requests from a ccw_queue and wait interruptible for their completion.
*/
int dasd_sleep_on_queue_interruptible(struct list_head *ccw_queue)
{
return _dasd_sleep_on_queue(ccw_queue, 1);
}
EXPORT_SYMBOL(dasd_sleep_on_queue_interruptible);
/*
* Queue a request to the tail of the device ccw_queue and wait
* interruptible for it's completion.

1
drivers/s390/block/dasd_int.h
View file

@ -748,6 +748,7 @@ void dasd_schedule_block_bh(struct dasd_block *);
int dasd_sleep_on(struct dasd_ccw_req *);
int dasd_sleep_on_queue(struct list_head *);
int dasd_sleep_on_immediatly(struct dasd_ccw_req *);
int dasd_sleep_on_queue_interruptible(struct list_head *);
int dasd_sleep_on_interruptible(struct dasd_ccw_req *);
void dasd_device_set_timer(struct dasd_device *, int);
void dasd_device_clear_timer(struct dasd_device *);