Update recovery_offset even when external metadata is used.
The update of ->recovery_offset in sync_sbs is appropriate even then external
metadata is in use. However sync_sbs is only called when native
metadata is used.
So move that update in to the top of md_update_sb (which is the only
caller of sync_sbs) before the test on ->external.
This moves the update out of ->write_lock protection, but those fields
only need ->reconfig_mutex protection which they still have.
Also move the test on ->persistent up to where ->external is set as
for metadata update purposes they are the same.
Clear MD_CHANGE_DEVS and MD_CHANGE_CLEAN as they can only be confusing
if ->external is set or ->persistent isn't.
Finally move the update of ->utime down as it is only relevent (like
the ->events update) for native metadata.
Signed-off-by: NeilBrown <neilb@suse.de>
Reported-by: "Kwolek, Adam" <adam.kwolek@intel.com>
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 11567c7..c148b63 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2136,16 +2136,6 @@
* with the rest of the array)
*/
mdk_rdev_t *rdev;
-
- /* First make sure individual recovery_offsets are correct */
- list_for_each_entry(rdev, &mddev->disks, same_set) {
- if (rdev->raid_disk >= 0 &&
- mddev->delta_disks >= 0 &&
- !test_bit(In_sync, &rdev->flags) &&
- mddev->curr_resync_completed > rdev->recovery_offset)
- rdev->recovery_offset = mddev->curr_resync_completed;
-
- }
list_for_each_entry(rdev, &mddev->disks, same_set) {
if (rdev->sb_events == mddev->events ||
(nospares &&
@@ -2167,12 +2157,27 @@
int sync_req;
int nospares = 0;
- mddev->utime = get_seconds();
- if (mddev->external)
- return;
repeat:
+ /* First make sure individual recovery_offsets are correct */
+ list_for_each_entry(rdev, &mddev->disks, same_set) {
+ if (rdev->raid_disk >= 0 &&
+ mddev->delta_disks >= 0 &&
+ !test_bit(In_sync, &rdev->flags) &&
+ mddev->curr_resync_completed > rdev->recovery_offset)
+ rdev->recovery_offset = mddev->curr_resync_completed;
+
+ }
+ if (mddev->external || !mddev->persistent) {
+ clear_bit(MD_CHANGE_DEVS, &mddev->flags);
+ clear_bit(MD_CHANGE_CLEAN, &mddev->flags);
+ wake_up(&mddev->sb_wait);
+ return;
+ }
+
spin_lock_irq(&mddev->write_lock);
+ mddev->utime = get_seconds();
+
set_bit(MD_CHANGE_PENDING, &mddev->flags);
if (test_and_clear_bit(MD_CHANGE_DEVS, &mddev->flags))
force_change = 1;
@@ -2221,19 +2226,6 @@
MD_BUG();
mddev->events --;
}
-
- /*
- * do not write anything to disk if using
- * nonpersistent superblocks
- */
- if (!mddev->persistent) {
- if (!mddev->external)
- clear_bit(MD_CHANGE_PENDING, &mddev->flags);
-
- spin_unlock_irq(&mddev->write_lock);
- wake_up(&mddev->sb_wait);
- return;
- }
sync_sbs(mddev, nospares);
spin_unlock_irq(&mddev->write_lock);