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Commit bcf36768 authored by Jan Höppner's avatar Jan Höppner Committed by Vasily Gorbik
Browse files

s390/dasd: Add dasd_sleep_on_queue_interruptible() 



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: default avatarJan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: default avatarStefan Haberland <sth@linux.ibm.com>
Signed-off-by: default avatarVasily Gorbik <gor@linux.ibm.com>
parent d7a4434d

drivers/s390/block/dasd.c

+9 −0
Original line number Diff line number Diff line
@@ -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.

drivers/s390/block/dasd_int.h

+1 −0
Original line number Diff line number Diff line
@@ -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 *);