BLK_QUEUE_START_TAG

Section: (9)
Updated: 17 July 2003
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NAME

blk_queue_start_tag - find a free tag and assign it  

SYNOPSIS

int blk_queue_start_tag (request_queue_t * q, struct request * rq);  

ARGUMENTS

q
the request queue for the device
rq
the block request that needs tagging
 

DESCRIPTION

This can either be used as a stand-alone helper, or possibly be assigned as the queue &prep_rq_fn (in which case &struct request automagically gets a tag assigned). Note that this function assumes that any type of request can be queued! if this is not true for your device, you must check the request type before calling this function. The request will also be removed from the request queue, so it's the drivers responsibility to readd it if it should need to be restarted for some reason.  

NOTES

queue lock must be held.  

ABOUT THIS DOCUMENT

This documentation is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

For more details see the file COPYING in the source distribution of Linux.

If you have comments on the formatting of this manpage, then please contact Michael Still (mikal@stillhq.com).

This documentation was generated with kernel version 2.5.73.


 

Index

NAME
SYNOPSIS
ARGUMENTS
DESCRIPTION
NOTES
ABOUT THIS DOCUMENT

This document was created by man2html, using the manual pages.
Time: 02:52:13 GMT, July 17, 2003