2 * blktrace output analysis: generate a timeline & gather statistics
4 * Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
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.
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.
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
25 struct list_head head;
26 char device[PATH_MAX], devno[PATH_MAX];
29 LIST_HEAD(all_devmaps);
31 static int dev_map_add(char *line)
35 if (strstr(line, "Device") != NULL)
38 dmp = malloc(sizeof(struct devmap));
39 if (sscanf(line, "%s %s", dmp->device, dmp->devno) != 2) {
44 list_add_tail(&dmp->head, &all_devmaps);
48 char *dev_map_find(__u32 device)
53 sprintf(this, "%u,%u", MAJOR(device), MINOR(device));
54 __list_for_each(p, &all_devmaps) {
55 struct devmap *dmp = list_entry(p, struct devmap, head);
57 if (!strcmp(this, dmp->devno))
64 int dev_map_read(char *fname)
67 FILE *fp = my_fopen(fname, "r");
74 while (fscanf(fp, "%255[a-zA-Z0-9 :.,/_-]\n", line) == 1) {
75 if (dev_map_add(line))
83 void dev_map_exit(void)
85 struct list_head *p, *q;
87 list_for_each_safe(p, q, &all_devmaps) {
88 struct devmap *dmp = list_entry(p, struct devmap, head);