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[PATCH] more extras/multipath updates 

* Adds a /var/run/multipath.run handling to avoid simultaneous runs.
* Remove a commented-out "printf"
This commit is contained in:
christophe.varoqui@free.fr 2003-12-07 08:48:23 -08:00 committed by Greg KH
parent 2bf80b67d1
commit d877515791
1 changed files with 29 additions and 3 deletions
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32
extras/multipath/main.c
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@ -660,9 +660,19 @@ usage(char * progname)
exit(1);
}
static int
running(char * run) {
struct stat buf;
if(!stat(run, &buf))
return 1;
return 0;
}
int
main(int argc, char *argv[])
{
char * run = "/var/run/multipath.run";
struct multipath * mp;
struct path * all_paths;
struct scsi_dev * all_scsi_ids;
@ -705,12 +715,26 @@ main(int argc, char *argv[])
}
if (running(run)) {
if (conf.verbose) {
fprintf(stderr, "Already running.\n");
fprintf(stderr, "If you know what you do, please ");
fprintf(stderr, "remove %s\n", run);
}
return 1;
}
if(!open(run, O_CREAT))
exit(1);
/* dynamic allocations */
mp = malloc(conf.max_devs * sizeof(struct multipath));
all_paths = malloc(conf.max_devs * sizeof(struct path));
all_scsi_ids = malloc(conf.max_devs * sizeof(struct scsi_dev));
if (mp == NULL || all_paths == NULL || all_scsi_ids == NULL)
if (mp == NULL || all_paths == NULL || all_scsi_ids == NULL) {
unlink(run);
exit(1);
}
if (!conf.with_sysfs) {
get_all_scsi_ids(&conf, all_scsi_ids);
@ -725,11 +749,12 @@ main(int argc, char *argv[])
fprintf(stdout, "\n");
print_all_mp(all_paths, mp, nmp);
fprintf(stdout, "\n");
//printf("\n");
}
if (conf.dry_run)
if (conf.dry_run) {
unlink(run);
exit(0);
}
for (k=0; k<=nmp; k++) {
if (map_present(mp[k].wwid)) {
@ -738,5 +763,6 @@ main(int argc, char *argv[])
add_map(&conf, all_paths, mp, k, DM_DEVICE_CREATE);
}
}
unlink(run);
exit(0);
}