1 /*
2 * blktrace output analysis: generate a timeline & gather statistics
3 *
4 * Copyright (C) 2007 Alan D. Brunelle <Alan.Brunelle@hp.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21 #include "globals.h"
22
get_nio_up(struct io * u_iop)23 static __u64 get_nio_up(struct io *u_iop)
24 {
25 __u64 *val = u_iop->pdu;
26 return be64_to_cpu(*val);
27 }
28
trace_unplug_io(struct io * u_iop)29 void trace_unplug_io(struct io *u_iop)
30 {
31 unplug_hist_add(u_iop);
32 dip_unplug(u_iop->t.device, BIT_TIME(u_iop->t.time), get_nio_up(u_iop));
33 io_release(u_iop);
34 }
35
trace_unplug_timer(struct io * ut_iop)36 void trace_unplug_timer(struct io *ut_iop)
37 {
38 dip_unplug_tm(ut_iop->t.device, BIT_TIME(ut_iop->t.time),
39 get_nio_up(ut_iop));
40 io_release(ut_iop);
41 }
42
trace_plug(struct io * p_iop)43 void trace_plug(struct io *p_iop)
44 {
45 dip_plug(p_iop->t.device, BIT_TIME(p_iop->t.time));
46 io_release(p_iop);
47 }
48