The request is area is specified in bytes, not in sectors.

Signed-off-by: Denis V. Lunev <d...@openvz.org>
CC: Vladimir Sementsov-Ogievskiy<vsement...@virtuozzo.com>
CC: Stefan Hajnoczi <stefa...@redhat.com>
CC: Fam Zheng <f...@redhat.com>
CC: Kevin Wolf <kw...@redhat.com>
CC: Max Reitz <mre...@redhat.com>
---
 block/io.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/block/io.c b/block/io.c
index afb99c4..b51f681 100644
--- a/block/io.c
+++ b/block/io.c
@@ -2263,8 +2263,8 @@ int coroutine_fn bdrv_co_discard(BlockDriverState *bs, 
int64_t sector_num,
         return 0;
     }
 
-    tracked_request_begin(&req, bs, NULL, sector_num, nb_sectors,
-                          BDRV_TRACKED_DISCARD);
+    tracked_request_begin(&req, bs, NULL, sector_num << BDRV_SECTOR_BITS,
+                          nb_sectors << BDRV_SECTOR_BITS, 
BDRV_TRACKED_DISCARD);
     bdrv_set_dirty(bs, sector_num, nb_sectors);
 
     max_discard = MIN_NON_ZERO(bs->bl.max_discard, BDRV_REQUEST_MAX_SECTORS);
-- 
2.5.0


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