md: remove unnecessary code from do_md_run

Since commit dfc7064500061677720fa26352963c772d3ebe6b,
->hot_remove_disks has not removed non-failed devices from
an array until recovery is no longer possible.
So the code in do_md_run to get around the fact that
md_check_recovery (which calls ->hot_remove_disks) would
remove partially-in-sync devices is no longer needed.

So remove it.

Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/drivers/md/md.c b/drivers/md/md.c
index fd55f2a..c4bdf06 100644 (file)
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -4421,34 +4421,6 @@ static int do_md_run(mddev_t * mddev)
 
        set_capacity(disk, mddev->array_sectors);
 
-       /* If there is a partially-recovered drive we need to
-        * start recovery here.  If we leave it to md_check_recovery,
-        * it will remove the drives and not do the right thing
-        */
-       if (mddev->degraded && !mddev->sync_thread) {
-               int spares = 0;
-               list_for_each_entry(rdev, &mddev->disks, same_set)
-                       if (rdev->raid_disk >= 0 &&
-                           !test_bit(In_sync, &rdev->flags) &&
-                           !test_bit(Faulty, &rdev->flags))
-                               /* complete an interrupted recovery */
-                               spares++;
-               if (spares && mddev->pers->sync_request) {
-                       mddev->recovery = 0;
-                       set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
-                       set_bit(MD_RECOVERY_RECOVER, &mddev->recovery);
-                       mddev->sync_thread = md_register_thread(md_do_sync,
-                                                               mddev,
-                                                               "resync");
-                       if (!mddev->sync_thread) {
-                               printk(KERN_ERR "%s: could not start resync"
-                                      " thread...\n",
-                                      mdname(mddev));
-                               /* leave the spares where they are, it shouldn't hurt */
-                               mddev->recovery = 0;
-                       }
-               }
-       }
        md_wakeup_thread(mddev->thread);
        md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */