lkml.org 
[lkml]   [2010]   [May]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: deadline ALWAYS default for dasd devices(s390) ?
On Mon, Apr 26, 2010 at 02:34:16PM +0200, Xose Vazquez Perez wrote:
> hi,
>
> why is it FORCED ? bypassing a GLOBAL setting and also the kernel command line !!!
>
> drivers/s390/block/dasd.c
>
> /*
> * Allocate and initialize request queue and default I/O scheduler.
> */
> static int dasd_alloc_queue(struct dasd_block *block)
> {
> int rc;
>
> block->request_queue = blk_init_queue(do_dasd_request,
> &block->request_queue_lock);
> if (block->request_queue == NULL)
> return -ENOMEM;
>
> block->request_queue->queuedata = block;
>
> elevator_exit(block->request_queue->elevator);
> block->request_queue->elevator = NULL;
> rc = elevator_init(block->request_queue, "deadline");
> if (rc) {
> blk_cleanup_queue(block->request_queue);
> return rc;
> }
> return 0;
> }

Horst, Stefan W. or Stefan H. should be able to answer your question.


\
 
 \ /
  Last update: 2010-05-05 08:19    [W:0.068 / U:1.640 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site