Check if GD_DEAD is already set in blk_mark_disk_dead, and don't duplicate the work already done. Signed-off-by: Christoph Hellwig <hch@xxxxxx> Reviewed-by: Jan Kara <jack@xxxxxxx> Acked-by: Christian Brauner <brauner@xxxxxxxxxx> --- block/genhd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/block/genhd.c b/block/genhd.c index aa327314905e63..6fa926a02d8534 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -575,7 +575,9 @@ void blk_mark_disk_dead(struct gendisk *disk) /* * Fail any new I/O. */ - set_bit(GD_DEAD, &disk->state); + if (test_and_set_bit(GD_DEAD, &disk->state)) + return; + if (test_bit(GD_OWNS_QUEUE, &disk->state)) blk_queue_flag_set(QUEUE_FLAG_DYING, disk->queue); -- 2.39.2
