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-rw-r--r--block/blk-iocost.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index 9dfcf540f400..dd64e2066f01 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -2516,6 +2516,10 @@ static void calc_vtime_cost_builtin(struct bio *bio, struct ioc_gq *iocg,
u64 seek_pages = 0;
u64 cost = 0;
+ /* Can't calculate cost for empty bio */
+ if (!bio->bi_iter.bi_size)
+ goto out;
+
switch (bio_op(bio)) {
case REQ_OP_READ:
coef_seqio = ioc->params.lcoefs[LCOEF_RSEQIO];