From: Jens Axboe <axboe@kernel.dk>
Date: Wed, 12 Aug 2020 17:48:15 +0000 (-0600)
Subject: io_u: calculate incremental residuals correctly
X-Git-Tag: fio-3.22~4
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=84abeef7d9f2f5cded36dcfc127b3f33db89ea57

io_u: calculate incremental residuals correctly

We need to use the transfer buffer length for the residual calculation,
otherwise multiple shorts on the same IO will not calculate the right
value.

Fixes: 5fff95436922 ("Add support for >= 4G block sizes")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/io_u.c b/io_u.c
index dbb0a6f8..2ef5acec 100644
--- a/io_u.c
+++ b/io_u.c
@@ -1977,7 +1977,7 @@ static void io_completed(struct thread_data *td, struct io_u **io_u_ptr,
 	td->last_ddir = ddir;
 
 	if (!io_u->error && ddir_rw(ddir)) {
-		unsigned long long bytes = io_u->buflen - io_u->resid;
+		unsigned long long bytes = io_u->xfer_buflen - io_u->resid;
 		int ret;
 
 		/*