From dc8cbb65dc17b0daebca84375d35ce54ff730762 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 10 Jul 2023 10:23:05 -0600 Subject: [PATCH] block: remove dead struc request->completion_data field It's no longer used. While in there, also update the comment as to why it can coexist with the rb_node. Signed-off-by: Jens Axboe --- include/linux/blk-mq.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 2b7fb8e..b96e004 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -158,13 +158,13 @@ struct request { /* * The rb_node is only used inside the io scheduler, requests - * are pruned when moved to the dispatch queue. So let the - * completion_data share space with the rb_node. + * are pruned when moved to the dispatch queue. special_vec must + * only be used if RQF_SPECIAL_PAYLOAD is set, and those cannot be + * insert into an IO scheduler. */ union { struct rb_node rb_node; /* sort/lookup */ struct bio_vec special_vec; - void *completion_data; }; /* -- 2.7.4