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.TH "BLK_QUEUE_BOUNCE_LIMIT" "9" "17 July 2003" "" ""

.SH NAME
blk_queue_bounce_limit \- set bounce buffer limit for queue
.SH SYNOPSIS
.sp
\fB
.sp
void blk_queue_bounce_limit  (request_queue_t * \fIq\fB, u64 \fIdma_addr\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIq\fB\fR
the request queue for the device
.TP
\fB\fIdma_addr\fB\fR
bus address limit
.SH "DESCRIPTION"
.PP
Different hardware can have different requirements as to what pages
it can do I/O directly to. A low level driver can call
blk_queue_bounce_limit to have lower memory pages allocated as bounce
buffers for doing I/O to pages residing above \fIpage\fR. By default
the block layer sets this to the highest numbered ``low'' memory page.
.SH "ABOUT THIS DOCUMENT"
.PP
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.
.PP
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.
.PP
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
.PP
For more details see the file COPYING in the source
distribution of Linux.
.PP
If you have comments on the formatting of this manpage, then please contact
Michael Still (mikal@stillhq.com).
.PP
This documentation was generated with kernel version 2.5.74.