diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/md-cluster.c | 1 | ||||
| -rw-r--r-- | drivers/md/md.c | 22 | ||||
| -rw-r--r-- | drivers/md/md.h | 1 |
3 files changed, 24 insertions, 0 deletions
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c index 5db491010835..7e419f05b568 100644 --- a/drivers/md/md-cluster.c +++ b/drivers/md/md-cluster.c @@ -320,6 +320,7 @@ static void process_recvd_msg(struct mddev *mddev, struct cluster_msg *msg) case METADATA_UPDATED: pr_info("%s: %d Received message: METADATA_UPDATE from %d\n", __func__, __LINE__, msg->slot); + md_reload_sb(mddev); break; case RESYNCING: pr_info("%s: %d Received message: RESYNCING from %d\n", diff --git a/drivers/md/md.c b/drivers/md/md.c index 0052e433d8a6..3eb45dc0537f 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8788,6 +8788,28 @@ err_wq: return ret; } +void md_reload_sb(struct mddev *mddev) +{ + struct md_rdev *rdev, *tmp; + + rdev_for_each_safe(rdev, tmp, mddev) { + rdev->sb_loaded = 0; + ClearPageUptodate(rdev->sb_page); + } + mddev->raid_disks = 0; + analyze_sbs(mddev); + rdev_for_each_safe(rdev, tmp, mddev) { + struct mdp_superblock_1 *sb = page_address(rdev->sb_page); + /* since we don't write to faulty devices, we figure out if the + * disk is faulty by comparing events + */ + if (mddev->events > sb->events) + set_bit(Faulty, &rdev->flags); + } + +} +EXPORT_SYMBOL(md_reload_sb); + #ifndef MODULE /* diff --git a/drivers/md/md.h b/drivers/md/md.h index 81e568090d8f..bfebcfdf54e6 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -665,6 +665,7 @@ extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs, struct mddev *mddev); extern void md_unplug(struct blk_plug_cb *cb, bool from_schedule); +extern void md_reload_sb(struct mddev *mddev); static inline int mddev_check_plugged(struct mddev *mddev) { return !!blk_check_plugged(md_unplug, mddev, |