Merge tag 'counter-fixes-for-6.5a' of git://git.kernel.org/pub/scm/linux/kernel/git...

[platform/kernel/linux-rpi.git] / block / blk-iocost.c

diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index 9dfcf54..dd64e20 100644 (file)
--- 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];