.\" This documentation was generated from the book titled "The Linux Kernel API", which is part of the Linux kernel source. .\" .\" This documentation comes with the following legal notice: .\" .\" 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. .\" .\" For comments on the formatting of this manpage, please contact Michael Still .\" This manpage has been automatically generated by docbook2man .\" from a DocBook document. This tool can be found at: .\" .\" Please send any bug reports, improvements, comments, patches, .\" etc. to Steve Cheng . .TH "BLK_ATTEMPT_REMERGE" "9" "13 April 2004" "" "" .SH NAME blk_attempt_remerge \- attempt to remerge active head with next request .SH SYNOPSIS .sp \fB .sp void blk_attempt_remerge (request_queue_t * \fIq\fB, struct request * \fIrq\fB); \fR .SH "ARGUMENTS" .TP \fB\fIq\fB\fR The &request_queue_t belonging to the device .TP \fB\fIrq\fB\fR The head request (usually) .SH "DESCRIPTION" .PP For head-active devices, the queue can easily be unplugged so quickly that proper merging is not done on the front request. This may hurt performance greatly for some devices. The block layer cannot safely do merging on that first request for these queues, but the driver can call this function and make it happen any way. Only the driver knows when it is safe to do so. .SH "ABOUT THIS DOCUMENT" .PP This documentation was generated with kernel version 2.6.1.