[PATCH] MD: generate an event when array sync is complete

Neil,

I'm not sure this is the best place in the code to put this (even though
I've tested that it works well).  I welcome your corrections.

 brassow

This patch causes MD to generate an event (for device-mapper) once array
synchronization is complete.  This is expected behavior for device-mapper.

RFC-by: Jonathan Brassow [off-list ref]

Index: linux-2.6/drivers/md/md.c
===================================================================

--- linux-2.6.orig/drivers/md/md.c
+++ linux-2.6/drivers/md/md.c

@@ -7328,6 +7328,9 @@ void md_check_recovery(mddev_t *mddev)
 	unlock:
 		if (!mddev->sync_thread) {
 			clear_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
+			if (mddev->event_work.func && !mddev->recovery &&
+			    (mddev->recovery_cp == MaxSector))
+				queue_work(md_misc_wq, &mddev->event_work);
 			if (test_and_clear_bit(MD_RECOVERY_RECOVER,
 					       &mddev->recovery))
 				if (mddev->sysfs_action)