[dm-devel] [PATCH 1/9] QUEUE_FLAG_NOWAIT to indicate device supports nowait

[Jens Axboe]

On 08/08/2017 02:32 PM, Shaohua Li wrote:
>> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
>> index 25f6a0cb27d3..fae021ebec1b 100644
>> --- a/include/linux/blkdev.h
>> +++ b/include/linux/blkdev.h
>> @@ -633,6 +633,7 @@ struct request_queue {
>>  #define QUEUE_FLAG_REGISTERED  29	/* queue has been registered to a disk */
>>  #define QUEUE_FLAG_SCSI_PASSTHROUGH 30	/* queue supports SCSI commands */
>>  #define QUEUE_FLAG_QUIESCED    31	/* queue has been quiesced */
>> +#define QUEUE_FLAG_NOWAIT      32	/* stack device driver supports REQ_NOWAIT */

Does this work on 32-bit, where sizeof(unsigned long) == 32?

-- 
Jens Axboe