On 05/14/2016 06:01 AM, Denis V. Lunev wrote:
Signed-off-by: Denis V. Lunev <address@hidden>
CC: Kevin Wolf <address@hidden>
---
block/qcow2.c | 5 +++++
trace-events | 2 ++
2 files changed, 7 insertions(+)
diff --git a/block/qcow2.c b/block/qcow2.c
index 9a54bbd..97bf870 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -2435,6 +2435,9 @@ static coroutine_fn int
qcow2_co_write_zeroes(BlockDriverState *bs,
int head = sector_num % s->cluster_sectors;
int tail = (sector_num + nb_sectors) % s->cluster_sectors;
+ trace_qcow2_write_zeroes_start_req(qemu_coroutine_self(), sector_num,
+ nb_sectors);
+
Can we trace these by byte locations rather than by sector count?
Ultimately, I think we want to move write_zeroes to a byte-based
interface, even if we still assert internally that it is at least
sector-aligned.