Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  md: Call blk_queue_flush() to establish flush/fua support
  md/raid1: really fix recovery looping when single good device fails.
  md: fix return value of rdev_size_change()

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 324a3663fcdaa35dc9d0553f532543aa8019dd38..84c46a161927999ebfc6c5d56d98e76247e66ae4 100644 (file)
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1337,7 +1337,7 @@ super_90_rdev_size_change(mdk_rdev_t *rdev, sector_t num_sectors)
        md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
                       rdev->sb_page);
        md_super_wait(rdev->mddev);
-       return num_sectors / 2; /* kB for sysfs */
+       return num_sectors;
 }
 
 
@@ -1704,7 +1704,7 @@ super_1_rdev_size_change(mdk_rdev_t *rdev, sector_t num_sectors)
        md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
                       rdev->sb_page);
        md_super_wait(rdev->mddev);
-       return num_sectors / 2; /* kB for sysfs */
+       return num_sectors;
 }
 
 static struct super_type super_types[] = {
@@ -4338,6 +4338,8 @@ static int md_alloc(dev_t dev, char *name)
        if (mddev->kobj.sd &&
            sysfs_create_group(&mddev->kobj, &md_bitmap_group))
                printk(KERN_DEBUG "pointless warning\n");
+
+       blk_queue_flush(mddev->queue, REQ_FLUSH | REQ_FUA);
  abort:
        mutex_unlock(&disks_mutex);
        if (!error && mddev->kobj.sd) {

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 45f8324196ec61c86cd7164868e3f8bc66ada03c..845cf95b612c452b799033f6b4f4a2903715b623 100644 (file)
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1161,6 +1161,7 @@ static int raid1_remove_disk(mddev_t *mddev, int number)
                 * is not possible.
                 */
                if (!test_bit(Faulty, &rdev->flags) &&
+                   !mddev->recovery_disabled &&
                    mddev->degraded < conf->raid_disks) {
                        err = -EBUSY;
                        goto abort;