Merge tag 'md-6.17-20250905' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux into block-6.17

Pull MD fixes from Yu:

"- fix data loss for writemostly in raid1, by Yu Kuai;
 - fix potentional data lost by skipping recovery, by Li Nan;"

* tag 'md-6.17-20250905' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux:
  md: prevent incorrect update of resync/recovery offset
  md/raid1: fix data lost for writemostly rdev

Author: axboe

drivers/md/md.c

@@ -9125,6 +9125,11 @@ void md_do_sync(struct md_thread *thread)
 	}
 
 	action = md_sync_action(mddev);
+	if (action == ACTION_FROZEN || action == ACTION_IDLE) {
+		set_bit(MD_RECOVERY_INTR, &mddev->recovery);
+		goto skip;
+	}
+
 	desc = md_sync_action_name(action);
 	mddev->last_sync_action = action;
 

drivers/md/raid1.c

@@ -1225,7 +1225,7 @@ static void alloc_behind_master_bio(struct r1bio *r1_bio,
 	int i = 0;
 	struct bio *behind_bio = NULL;
 
-	behind_bio = bio_alloc_bioset(NULL, vcnt, 0, GFP_NOIO,
+	behind_bio = bio_alloc_bioset(NULL, vcnt, bio->bi_opf, GFP_NOIO,
 				      &r1_bio->mddev->bio_set);
 
 	/* discard op, we don't support writezero/writesame yet */