return 1;
}
- /* If this is an mdmon managed array, just write 'inactive'
- * to the array state and let mdmon clear up.
- */
strcpy(devnm, fd2devnm(fd));
/* Get EXCL access first. If this fails, then attempting
* to stop is probably a bad idea.
container[0] = 0;
close(fd);
count = 5;
- while (((fd = ((devnm[0] == '/')
+ while (((fd = ((devname[0] == '/')
?open(devname, O_RDONLY|O_EXCL)
:open_dev_flags(devnm, O_RDONLY|O_EXCL))) < 0
|| strcmp(fd2devnm(fd), devnm) != 0)
&& container[0]
&& mdmon_running(container)
&& count) {
+ /* Can't open, so something might be wrong. However it
+ * is a container, so we might be racing with mdmon, so
+ * retry for a bit.
+ */
if (fd >= 0)
close(fd);
flush_mdmon(container);
devname);
return 1;
}
+ /* If this is an mdmon managed array, just write 'inactive'
+ * to the array state and let mdmon clear up.
+ */
if (mdi &&
mdi->array.level > 0 &&
is_subarray(mdi->text_version)) {
/* This is mdmon managed. */
close(fd);
- /* As we have an O_EXCL open, any use of the device
+ /* As we had an O_EXCL open, any use of the device
* which blocks STOP_ARRAY is probably a transient use,
* so it is reasonable to retry for a while - 5 seconds.
*/
devnm)) {
if (verbose >= 0)
pr_err("Cannot stop container %s: member %s still active\n",
- devname, m->dev);
+ devname, m->devnm);
free_mdstat(mds);
rv = 1;
goto out;
sysfs_attribute_available(mdi, NULL, "reshape_direction") &&
sysfs_get_str(mdi, NULL, "sync_action", buf, 20) > 0 &&
strcmp(buf, "reshape\n") == 0 &&
- sysfs_get_two(mdi, NULL, "raid_disks", &rd1, &rd2) == 2 &&
- sysfs_set_str(mdi, NULL, "sync_action", "frozen") == 0) {
- /* Array is frozen */
+ sysfs_get_two(mdi, NULL, "raid_disks", &rd1, &rd2) == 2) {
unsigned long long position, curr;
unsigned long long chunk1, chunk2;
unsigned long long rddiv, chunkdiv;
int delay;
int scfd;
+ delay = 40;
+ while (rd1 > rd2 && delay > 0 &&
+ sysfs_get_ll(mdi, NULL, "sync_max", &old_sync_max) == 0) {
+ /* must be in the critical section - wait a bit */
+ delay -= 1;
+ usleep(100000);
+ }
+
+ if (sysfs_set_str(mdi, NULL, "sync_action", "frozen") != 0)
+ goto done;
+ /* Array is frozen */
+
rd1 -= mdi->array.level == 6 ? 2 : 1;
rd2 -= mdi->array.level == 6 ? 2 : 1;
sysfs_get_str(mdi, NULL, "reshape_direction", buf, sizeof(buf));
if (strncmp(buf, "back", 4) == 0)
backwards = 1;
- sysfs_get_ll(mdi, NULL, "reshape_position", &position);
+ if (sysfs_get_ll(mdi, NULL, "reshape_position", &position) != 0) {
+ /* reshape must have finished now */
+ sysfs_set_str(mdi, NULL, "sync_action", "idle");
+ goto done;
+ }
sysfs_get_two(mdi, NULL, "chunk_size", &chunk1, &chunk2);
chunk1 /= 512;
chunk2 /= 512;
size &= ~(chunk1-1);
size &= ~(chunk2-1);
/* rd1 must be smaller */
+ /* Reshape may have progressed further backwards than
+ * recorded, so target even further back (hence "-1")
+ */
position = (position / sectors - 1) * sectors;
+ /* rd1 is always the conversion factor between 'sync'
+ * position and 'reshape' position.
+ * We read 1 "new" stripe worth of data from where-ever,
+ * and when write out that full stripe.
+ */
sync_max = size - position/rd1;
} else {
+ /* Reshape will very likely be beyond position, and it may
+ * be too late to stop at '+1', so aim for '+2'
+ */
position = (position / sectors + 2) * sectors;
sync_max = position/rd1;
}
delay = 3000;
scfd = sysfs_open(mdi->sys_name, NULL, "sync_completed");
while (scfd >= 0 && delay > 0 && old_sync_max > 0) {
+ unsigned long long max_completed;
sysfs_get_ll(mdi, NULL, "reshape_position", &curr);
sysfs_fd_get_str(scfd, buf, sizeof(buf));
if (strncmp(buf, "none", 4) == 0) {
break;
}
- if (sysfs_fd_get_ll(scfd, &completed) == 0 &&
+ if (sysfs_fd_get_two(scfd, &completed,
+ &max_completed) == 2 &&
+ /* 'completed' sometimes reads as max-uulong */
+ completed < max_completed &&
(completed > sync_max ||
(completed == sync_max && curr != position))) {
while (completed > sync_max) {
close(scfd);
}
+done:
/* As we have an O_EXCL open, any use of the device
* which blocks STOP_ARRAY is probably a transient use,
int Manage_add(int fd, int tfd, struct mddev_dev *dv,
struct supertype *tst, mdu_array_info_t *array,
int force, int verbose, char *devname,
- char *update, unsigned long rdev, unsigned long long array_size)
+ char *update, unsigned long rdev, unsigned long long array_size,
+ int raid_slot)
{
unsigned long long ldsize;
struct supertype *dev_st = NULL;
}
disc.major = major(rdev);
disc.minor = minor(rdev);
- disc.number =j;
+ if (raid_slot < 0)
+ disc.number = j;
+ else
+ disc.number = raid_slot;
disc.state = 0;
if (array->not_persistent==0) {
int dfd;
}
free(used);
}
+
+ if (array->state & (1 << MD_SB_CLUSTERED)) {
+ if (dv->disposition == 'c')
+ disc.state |= (1 << MD_DISK_CANDIDATE);
+ else
+ disc.state |= (1 << MD_DISK_CLUSTER_ADD);
+ }
+
if (dv->writemostly == 1)
disc.state |= (1 << MD_DISK_WRITEMOSTLY);
if (tst->ss->external) {
* variant on 'A'
* 'F' - Another variant of 'A', where the device was faulty
* so must be removed from the array first.
+ * 'c' - confirm the device as found (for clustered environments)
*
* For 'f' and 'r', the device can also be a kernel-internal
* name such as 'sdb'.
struct mdinfo info;
int frozen = 0;
int busy = 0;
+ int raid_slot = -1;
if (ioctl(fd, GET_ARRAY_INFO, &array)) {
pr_err("Cannot get array info for %s\n",
int rv;
int mj,mn;
+ raid_slot = -1;
+ if (dv->disposition == 'c') {
+ rv = parse_cluster_confirm_arg(dv->devname,
+ &dv->devname,
+ &raid_slot);
+ if (rv) {
+ pr_err("Could not get the devname of cluster\n");
+ goto abort;
+ }
+ }
+
if (strcmp(dv->devname, "failed") == 0 ||
strcmp(dv->devname, "faulty") == 0) {
if (dv->disposition != 'A'
if (strcmp(dv->devname, "missing") == 0) {
struct mddev_dev *add_devlist = NULL;
struct mddev_dev **dp;
+ if (dv->disposition == 'c') {
+ rv = ioctl(fd, CLUSTERED_DISK_NACK, NULL);
+ break;
+ }
+
if (dv->disposition != 'A') {
pr_err("'missing' only meaningful with --re-add\n");
goto abort;
case 'A':
case 'M': /* --re-add missing */
case 'F': /* --re-add faulty */
+ case 'c': /* --cluster-confirm */
/* add the device */
if (subarray) {
pr_err("Cannot add disks to a \'member\' array, perform this operation on the parent container\n");
}
rv = Manage_add(fd, tfd, dv, tst, &array,
force, verbose, devname, update,
- rdev, array_size);
+ rdev, array_size, raid_slot);
close(tfd);
tfd = -1;
if (rv < 0)
projects / thirdparty / mdadm.git / blobdiff