From: Ming Lei <ming.lei@redhat.com>
Date: Sat, 14 Oct 2017 17:22:28 +0800
Subject: [PATCH] block: kyber: check if there are requests in ctx in
Git-commit: 63ba8e31c3ac6393b07c6e18538814a730478766
Patch-mainline: v4.15-rc1
References: bsc#1104967,FATE#325924
 kyber_has_work()

There may be request in sw queue, and not fetched to domain queue
yet, so check it in kyber_has_work().

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Hannes Reinecke <hare@suse.com>
---
 block/kyber-iosched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/kyber-iosched.c b/block/kyber-iosched.c
index db5bfc6342d3..b4df317c2916 100644
--- a/block/kyber-iosched.c
+++ b/block/kyber-iosched.c
@@ -649,7 +649,7 @@ static bool kyber_has_work(struct blk_mq_hw_ctx *hctx)
 		if (!list_empty_careful(&khd->rqs[i]))
 			return true;
 	}
-	return false;
+	return sbitmap_any_bit_set(&hctx->ctx_map);
 }
 
 #define KYBER_LAT_SHOW_STORE(op)					\
-- 
2.16.4