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095181f2 JA |
1 | /* |
2 | * blktrace output analysis: generate a timeline & gather statistics | |
3 | * | |
4 | * Copyright (C) 2006 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 | ||
4c48f14e | 23 | static void handle_issue(struct io *d_iop) |
095181f2 | 24 | { |
4c48f14e AB |
25 | LIST_HEAD(head); |
26 | struct list_head *p, *q; | |
27 | ||
50f73899 AB |
28 | if (d_iop->dip->n_act_q != 0) |
29 | d_iop->dip->n_act_q--; | |
30 | ||
4c48f14e AB |
31 | seeki_add(d_iop->dip->seek_handle, d_iop); |
32 | bno_dump_add(d_iop->dip->bno_dump_handle, d_iop); | |
33 | iostat_issue(d_iop); | |
34 | d_iop->dip->n_ds++; | |
35 | if (!remapper_dev(d_iop->t.device)) | |
36 | update_d_histo(d_iop->t.bytes); | |
37 | ||
38 | dip_foreach_list(d_iop, IOP_Q, &head); | |
39 | list_for_each_safe(p, q, &head) { | |
40 | struct io *q_iop = list_entry(p, struct io, f_head); | |
41 | ||
42 | update_i2d(q_iop, tdelta(q_iop->gm_time, d_iop->t.time)); | |
43 | d_iop->bytes_left -= q_iop->t.bytes; | |
44 | LIST_DEL(&q_iop->f_head); | |
45 | ||
46 | q_iop->d_time = d_iop->t.time; | |
47 | q_iop->d_sec = d_iop->t.sector; | |
48 | q_iop->d_nsec = t_sec(&d_iop->t); | |
951ea56c AB |
49 | |
50 | if (output_all_data) | |
51 | q2d_histo_add(q_iop->dip->q2d_priv, | |
52 | d_iop->t.time - q_iop->t.time); | |
095181f2 JA |
53 | } |
54 | ||
4c48f14e | 55 | assert(d_iop->bytes_left == 0); |
095181f2 JA |
56 | } |
57 | ||
d76c5b81 | 58 | void trace_issue(struct io *d_iop) |
095181f2 | 59 | { |
4c48f14e AB |
60 | if (io_setup(d_iop, IOP_D)) |
61 | handle_issue(d_iop); | |
62 | io_release(d_iop); | |
095181f2 | 63 | |
095181f2 | 64 | } |