Make sure all changes to md/degraded are notified. (a99ac971) · Commits · 戴 / test

Documentation/md.txt

+7 −0

Original line number	Diff line number	Diff line
		@@ -392,6 +392,13 @@ also have
		achieved. In that case, the transition to "recover" isn't
		notified, but the transition away is.

		degraded
		This contains a count of the number of devices by which the
		arrays is degraded. So an optimal array with show '0'. A
		single failed/missing drive will show '1', etc.
		This file responds to select/poll, any increase or decrease
		in the count of missing devices will trigger an event.

		mismatch_count
		When performing 'check' and 'repair', and possibly when
		performing 'resync', md will count the number of errors that are

+5 −1

Original line number	Diff line number	Diff line
		@@ -2969,6 +2969,7 @@ action_store(mddev_t mddev, const char page, size_t len)
		err = mddev->pers->start_reshape(mddev);
		if (err)
		return err;
		sysfs_notify(&mddev->kobj, NULL, "degraded");
		} else {
		if (cmd_match(page, "check"))
		set_bit(MD_RECOVERY_CHECK, &mddev->recovery);
		@@ -3686,6 +3687,7 @@ static int do_md_run(mddev_t * mddev)
		md_new_event(mddev);
		sysfs_notify(&mddev->kobj, NULL, "array_state");
		sysfs_notify(&mddev->kobj, NULL, "sync_action");
		sysfs_notify(&mddev->kobj, NULL, "degraded");
		kobject_uevent(&mddev->gendisk->dev.kobj, KOBJ_CHANGE);
		return 0;
		}
		@@ -6049,7 +6051,9 @@ void md_check_recovery(mddev_t *mddev)
		if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
		/* success...*/
		/* activate any spares */
		mddev->pers->spare_active(mddev);
		if (mddev->pers->spare_active(mddev))
		sysfs_notify(&mddev->kobj, NULL,
		"degraded");
		}
		md_update_sb(mddev, 1);