From 55141366de8cb281ee6730a810c7602dee403e92 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 9 May 2018 13:12:10 -0600 Subject: bfq-iosched: don't worry about reserved tags in limit_depth Reserved tags are used for error handling, we don't need to care about them for regular IO. The core won't call us for these anyway. Acked-by: Paolo Valente Reviewed-by: Omar Sandoval Signed-off-by: Jens Axboe --- block/bfq-iosched.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'block/bfq-iosched.c') diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index eefd8a4bc936..db38e88a5670 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -542,14 +542,7 @@ static void bfq_limit_depth(unsigned int op, struct blk_mq_alloc_data *data) if (op_is_sync(op) && !op_is_write(op)) return; - if (data->flags & BLK_MQ_REQ_RESERVED) { - if (unlikely(!tags->nr_reserved_tags)) { - WARN_ON_ONCE(1); - return; - } - bt = &tags->breserved_tags; - } else - bt = &tags->bitmap_tags; + bt = &tags->bitmap_tags; if (unlikely(bfqd->sb_shift != bt->sb.shift)) bfq_update_depths(bfqd, bt); -- cgit