[PATCH] md: fix endless loop when syncing an array that doesn't need any resync.

If the resync checkpoint for an array is at the end of the array, It doesn't
get set to MAX_SECTOR, so resyncing will be retried.  By updating curr_resync
early, this problem is fixed.
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/md/md.c

@@ -3369,10 +3369,12 @@ static void md_do_sync(mddev_t *mddev)
 	init_waitqueue_head(&mddev->recovery_wait);
 	last_check = 0;
 
-	if (j)
+	if (j>2) {
 		printk(KERN_INFO 
 			"md: resuming recovery of %s from checkpoint.\n",
 			mdname(mddev));
+		mddev->curr_resync = j;
+	}
 
 	while (j < max_sectors) {
 		int sectors;
@@ -3454,7 +3456,7 @@ static void md_do_sync(mddev_t *mddev)
 
 	if (!test_bit(MD_RECOVERY_ERR, &mddev->recovery) &&
 	    mddev->curr_resync > 2 &&
-	    mddev->curr_resync > mddev->recovery_cp) {
+	    mddev->curr_resync >= mddev->recovery_cp) {
 		if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
 			printk(KERN_INFO 
 				"md: checkpointing recovery of %s.\n",