static void lock_disk(struct fsck_instance *inst)
{
dev_t disk = fs_get_disk(inst->fs, 1);
char *diskname;
if (!disk || is_irrotational_disk(disk))
return;
diskname = blkid_devno_to_devname(disk);
if (!diskname)
return;
if (verbose)
printf(_("Locking disk %s ... "), diskname);
inst->lock = open(diskname, O_CLOEXEC | O_RDONLY);
if (inst->lock >= 0) {
int rc = -1;
/* inform users that we're waiting on the lock */
if (verbose &&
(rc = flock(inst->lock, LOCK_EX | LOCK_NB)) != 0 &&
errno == EWOULDBLOCK)
printf(_("(waiting) "));
if (rc != 0 && flock(inst->lock, LOCK_EX) != 0) {
close(inst->lock); /* failed */
inst->lock = -1;
}
}
if (verbose)
/* TRANSLATORS: These are followups to "Locking disk...". */
printf("%s.\n", inst->lock >= 0 ? _("succeeded") : _("failed"));
free(diskname);
return;
}
static void lock_disk(struct fsck_instance *inst)
{
dev_t disk = fs_get_disk(inst->fs, 1);
char *diskpath = NULL, *diskname;
inst->lock = -1;
if (!disk || is_irrotational_disk(disk))
goto done;
diskpath = blkid_devno_to_devname(disk);
if (!diskpath)
goto done;
if (access(FSCK_RUNTIME_DIRNAME, F_OK) != 0) {
int rc = mkdir(FSCK_RUNTIME_DIRNAME,
S_IWUSR|
S_IRUSR|S_IRGRP|S_IROTH|
S_IXUSR|S_IXGRP|S_IXOTH);
if (rc && errno != EEXIST) {
warn(_("cannot create directory %s"),
FSCK_RUNTIME_DIRNAME);
goto done;
}
}
diskname = stripoff_last_component(diskpath);
if (!diskname)
diskname = diskpath;
xasprintf(&inst->lockpath, FSCK_RUNTIME_DIRNAME "/%s.lock", diskname);
if (verbose)
printf(_("Locking disk by %s ... "), inst->lockpath);
inst->lock = open(inst->lockpath, O_RDONLY|O_CREAT|O_CLOEXEC,
S_IWUSR|S_IRUSR|S_IRGRP|S_IROTH);
if (inst->lock >= 0) {
int rc = -1;
/* inform users that we're waiting on the lock */
if (verbose &&
(rc = flock(inst->lock, LOCK_EX | LOCK_NB)) != 0 &&
errno == EWOULDBLOCK)
printf(_("(waiting) "));
if (rc != 0 && flock(inst->lock, LOCK_EX) != 0) {
close(inst->lock); /* failed */
inst->lock = -1;
}
}
if (verbose)
/* TRANSLATORS: These are followups to "Locking disk...". */
printf("%s.\n", inst->lock >= 0 ? _("succeeded") : _("failed"));
done:
if (inst->lock < 0) {
free(inst->lockpath);
inst->lockpath = NULL;
}
free(diskpath);
return;
}