'\" t .\" Title: trace_block_plug .\" Author: .\" Generator: DocBook XSL Stylesheets v1.78.1 .\" Date: May 2018 .\" Manual: Block IO .\" Source: Kernel Hackers Manual 3.16.56 .\" Language: English .\" .TH "TRACE_BLOCK_PLUG" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "Block IO" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" trace_block_plug \- keep operations requests in request queue .SH "SYNOPSIS" .HP \w'void\ trace_block_plug('u .BI "void trace_block_plug(struct\ request_queue\ *\ " "q" ");" .SH "ARGUMENTS" .PP \fIq\fR .RS 4 request queue to plug .RE .SH "DESCRIPTION" .PP Plug the request queue \fIq\fR\&. Do not allow block operation requests to be sent to the device driver\&. Instead, accumulate requests in the queue to improve throughput performance of the block device\&. .SH "AUTHORS" .PP \fBJason Baron\fR <\&jbaron@redhat.com\&> .RS 4 Author. .RE .PP \fBWilliam Cohen\fR <\&wcohen@redhat.com\&> .RS 4 Author. .RE .SH "COPYRIGHT" .br