*/
void mddev_suspend(struct mddev *mddev)
{
- WARN_ON_ONCE(current == mddev->thread->tsk);
+ WARN_ON_ONCE(mddev->thread && current == mddev->thread->tsk);
if (mddev->suspended++)
return;
synchronize_rcu();
bi->bi_end_io = md_end_flush;
bi->bi_private = rdev;
bi->bi_bdev = rdev->bdev;
+ bio_set_op_attrs(bi, REQ_OP_WRITE, WRITE_FLUSH);
atomic_inc(&mddev->flush_pending);
- submit_bio(WRITE_FLUSH, bi);
+ submit_bio(bi);
rcu_read_lock();
rdev_dec_pending(rdev, mddev);
}
/* an empty barrier - all done */
bio_endio(bio);
else {
- bio->bi_rw &= ~REQ_FLUSH;
+ bio->bi_rw &= ~REQ_PREFLUSH;
mddev->pers->make_request(mddev, bio);
}
bio_add_page(bio, page, size, 0);
bio->bi_private = rdev;
bio->bi_end_io = super_written;
+ bio_set_op_attrs(bio, REQ_OP_WRITE, WRITE_FLUSH_FUA);
atomic_inc(&mddev->pending_writes);
- submit_bio(WRITE_FLUSH_FUA, bio);
+ submit_bio(bio);
}
void md_super_wait(struct mddev *mddev)
}
int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
- struct page *page, int rw, bool metadata_op)
+ struct page *page, int op, int op_flags, bool metadata_op)
{
struct bio *bio = bio_alloc_mddev(GFP_NOIO, 1, rdev->mddev);
int ret;
bio->bi_bdev = (metadata_op && rdev->meta_bdev) ?
rdev->meta_bdev : rdev->bdev;
+ bio_set_op_attrs(bio, op, op_flags);
if (metadata_op)
bio->bi_iter.bi_sector = sector + rdev->sb_start;
else if (rdev->mddev->reshape_position != MaxSector &&
else
bio->bi_iter.bi_sector = sector + rdev->data_offset;
bio_add_page(bio, page, size, 0);
- submit_bio_wait(rw, bio);
+
+ submit_bio_wait(bio);
ret = !bio->bi_error;
bio_put(bio);
if (rdev->sb_loaded)
return 0;
- if (!sync_page_io(rdev, 0, size, rdev->sb_page, READ, true))
+ if (!sync_page_io(rdev, 0, size, rdev->sb_page, REQ_OP_READ, 0, true))
goto fail;
rdev->sb_loaded = 1;
return 0;
return -EINVAL;
bb_sector = (long long)offset;
if (!sync_page_io(rdev, bb_sector, sectors << 9,
- rdev->bb_page, READ, true))
+ rdev->bb_page, REQ_OP_READ, 0, true))
return -EIO;
bbp = (u64 *)page_address(rdev->bb_page);
rdev->badblocks.shift = sb->bblog_shift;
return;
}
+repeat:
if (mddev_is_clustered(mddev)) {
if (test_and_clear_bit(MD_CHANGE_DEVS, &mddev->flags))
force_change = 1;
+ if (test_and_clear_bit(MD_CHANGE_CLEAN, &mddev->flags))
+ nospares = 1;
ret = md_cluster_ops->metadata_update_start(mddev);
/* Has someone else has updated the sb */
if (!does_sb_need_changing(mddev)) {
if (ret == 0)
md_cluster_ops->metadata_update_cancel(mddev);
- clear_bit(MD_CHANGE_PENDING, &mddev->flags);
+ bit_clear_unless(&mddev->flags, BIT(MD_CHANGE_PENDING),
+ BIT(MD_CHANGE_DEVS) |
+ BIT(MD_CHANGE_CLEAN));
return;
}
}
-repeat:
+
/* First make sure individual recovery_offsets are correct */
rdev_for_each(rdev, mddev) {
if (rdev->raid_disk >= 0 &&
md_super_wait(mddev);
/* if there was a failure, MD_CHANGE_DEVS was set, and we re-write super */
- spin_lock(&mddev->lock);
+ if (mddev_is_clustered(mddev) && ret == 0)
+ md_cluster_ops->metadata_update_finish(mddev);
+
if (mddev->in_sync != sync_req ||
- test_bit(MD_CHANGE_DEVS, &mddev->flags)) {
+ !bit_clear_unless(&mddev->flags, BIT(MD_CHANGE_PENDING),
+ BIT(MD_CHANGE_DEVS) | BIT(MD_CHANGE_CLEAN)))
/* have to write it out again */
- spin_unlock(&mddev->lock);
goto repeat;
- }
- clear_bit(MD_CHANGE_PENDING, &mddev->flags);
- spin_unlock(&mddev->lock);
wake_up(&mddev->sb_wait);
if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
sysfs_notify(&mddev->kobj, NULL, "sync_completed");
clear_bit(BlockedBadBlocks, &rdev->flags);
wake_up(&rdev->blocked_wait);
}
-
- if (mddev_is_clustered(mddev) && ret == 0)
- md_cluster_ops->metadata_update_finish(mddev);
}
EXPORT_SYMBOL(md_update_sb);
if (err)
return err;
+ /* cluster raid doesn't support change array_sectors */
+ if (mddev_is_clustered(mddev))
+ return -EINVAL;
+
if (strncmp(buf, "default", 7) == 0) {
if (mddev->pers)
sectors = mddev->pers->size(mddev, 0, 0);
disk->fops = &md_fops;
disk->private_data = mddev;
disk->queue = mddev->queue;
- blk_queue_flush(mddev->queue, REQ_FLUSH | REQ_FUA);
+ blk_queue_write_cache(mddev->queue, true, true);
/* Allow extended partitions. This makes the
* 'mdp' device redundant, but we can't really
* remove it now.
int rv;
int fit = (num_sectors == 0);
+ /* cluster raid doesn't support update size */
+ if (mddev_is_clustered(mddev))
+ return -EINVAL;
+
if (mddev->pers->resize == NULL)
return -EINVAL;
/* The "num_sectors" is the number of sectors of each device that
struct md_rdev *rdev;
char *desc, *action = NULL;
struct blk_plug plug;
- bool cluster_resync_finished = false;
+ int ret;
/* just incase thread restarts... */
if (test_bit(MD_RECOVERY_DONE, &mddev->recovery))
return;
}
+ if (mddev_is_clustered(mddev)) {
+ ret = md_cluster_ops->resync_start(mddev);
+ if (ret)
+ goto skip;
+
+ if (!(test_bit(MD_RECOVERY_SYNC, &mddev->recovery) ||
+ test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) ||
+ test_bit(MD_RECOVERY_RECOVER, &mddev->recovery))
+ && ((unsigned long long)mddev->curr_resync_completed
+ < (unsigned long long)mddev->resync_max_sectors))
+ goto skip;
+ }
+
if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
if (test_bit(MD_RECOVERY_CHECK, &mddev->recovery)) {
desc = "data-check";
mddev->curr_resync_completed = mddev->curr_resync;
sysfs_notify(&mddev->kobj, NULL, "sync_completed");
}
- /* tell personality and other nodes that we are finished */
- if (mddev_is_clustered(mddev)) {
- md_cluster_ops->resync_finish(mddev);
- cluster_resync_finished = true;
- }
mddev->pers->sync_request(mddev, max_sectors, &skipped);
if (!test_bit(MD_RECOVERY_CHECK, &mddev->recovery) &&
}
}
skip:
- set_bit(MD_CHANGE_DEVS, &mddev->flags);
-
if (mddev_is_clustered(mddev) &&
- test_bit(MD_RECOVERY_INTR, &mddev->recovery) &&
- !cluster_resync_finished)
+ ret == 0) {
+ /* set CHANGE_PENDING here since maybe another
+ * update is needed, so other nodes are informed */
+ set_mask_bits(&mddev->flags, 0,
+ BIT(MD_CHANGE_PENDING) | BIT(MD_CHANGE_DEVS));
+ md_wakeup_thread(mddev->thread);
+ wait_event(mddev->sb_wait,
+ !test_bit(MD_CHANGE_PENDING, &mddev->flags));
md_cluster_ops->resync_finish(mddev);
+ } else
+ set_bit(MD_CHANGE_DEVS, &mddev->flags);
spin_lock(&mddev->lock);
if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
struct mddev *mddev = container_of(ws, struct mddev, del_work);
int ret = 0;
- if (mddev_is_clustered(mddev)) {
- ret = md_cluster_ops->resync_start(mddev);
- if (ret) {
- mddev->sync_thread = NULL;
- goto out;
- }
- }
-
mddev->sync_thread = md_register_thread(md_do_sync,
mddev,
"resync");
-out:
if (!mddev->sync_thread) {
if (!(mddev_is_clustered(mddev) && ret == -EAGAIN))
printk(KERN_ERR "%s: could not start resync"
int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
int is_new)
{
+ struct mddev *mddev = rdev->mddev;
int rv;
if (is_new)
s += rdev->new_data_offset;
if (rv == 0) {
/* Make sure they get written out promptly */
sysfs_notify_dirent_safe(rdev->sysfs_state);
- set_bit(MD_CHANGE_CLEAN, &rdev->mddev->flags);
- set_bit(MD_CHANGE_PENDING, &rdev->mddev->flags);
+ set_mask_bits(&mddev->flags, 0,
+ BIT(MD_CHANGE_CLEAN) | BIT(MD_CHANGE_PENDING));
md_wakeup_thread(rdev->mddev->thread);
return 1;
} else
ret = remove_and_add_spares(mddev, rdev2);
pr_info("Activated spare: %s\n",
bdevname(rdev2->bdev,b));
+ /* wakeup mddev->thread here, so array could
+ * perform resync with the new activated disk */
+ set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
+ md_wakeup_thread(mddev->thread);
+
}
/* device faulty
* We just want to do the minimum to mark the disk
projects / deliverable / linux.git / blobdiff