Merge tag 'md-3.3-fixes' of git://neil.brown.name/md

Some simple md-related fixes.

1/ two small fixes to ensure we handle an interrupted resync properly.
2/ avoid loading the bitmap multiple times in dm-raid

* tag 'md-3.3-fixes' of git://neil.brown.name/md:
  md: two small fixes to handling interrupt resync.
  Prevent DM RAID from loading bitmap twice.

2 files changed, 12 insertions, 5 deletions

diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index c2907d836e4e..86cb7e5d83d5 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -56,7 +56,8 @@ struct raid_dev {
 struct raid_set {
         struct dm_target *ti;
 
-        uint64_t print_flags;
+        uint32_t bitmap_loaded;
+        uint32_t print_flags;
 
         struct mddev md;
         struct raid_type *raid_type;
@@ -1085,7 +1086,7 @@ static int raid_status(struct dm_target *ti, status_type_t type,
                                 raid_param_cnt += 2;
                 }
 
-                raid_param_cnt += (hweight64(rs->print_flags & ~DMPF_REBUILD) * 2);
+                raid_param_cnt += (hweight32(rs->print_flags & ~DMPF_REBUILD) * 2);
                 if (rs->print_flags & (DMPF_SYNC | DMPF_NOSYNC))
                         raid_param_cnt--;
 
@@ -1197,7 +1198,12 @@ static void raid_resume(struct dm_target *ti)
 {
         struct raid_set *rs = ti->private;
 
-        bitmap_load(&rs->md);
+        if (!rs->bitmap_loaded) {
+                bitmap_load(&rs->md);
+                rs->bitmap_loaded = 1;
+        } else
+                md_wakeup_thread(rs->md.thread);
+
         mddev_resume(&rs->md);
 }
 
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 9417ae2fa0bb..ce88755baf4a 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7333,7 +7333,8 @@ void md_do_sync(struct mddev *mddev)
                                         printk(KERN_INFO
                                                "md: checkpointing %s of %s.\n",
                                                desc, mdname(mddev));
-                                        mddev->recovery_cp = mddev->curr_resync;
+                                        mddev->recovery_cp =
+                                                mddev->curr_resync_completed;
                                 }
                         } else
                                 mddev->recovery_cp = MaxSector;
@@ -7351,9 +7352,9 @@ void md_do_sync(struct mddev *mddev)
                         rcu_read_unlock();
                 }
         }
+ skip:
         set_bit(MD_CHANGE_DEVS, &mddev->flags);
 
- skip:
         if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
                 /* We completed so min/max setting can be forgotten if used. */
                 if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))