From: Jens Axboe <axboe@kernel.dk>
Date: Thu, 23 Sep 2021 15:15:16 +0000 (-0600)
Subject: t/io_uring: ensure batch counts are smaller or equal to depth
X-Git-Tag: fio-3.29~96
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=c53476111d5ede61d24b3fa181fa2d19d3a3e6bc;p=fio.git

t/io_uring: ensure batch counts are smaller or equal to depth

If you use a batch submit or complete count that's larger than the
depth, then t/io_uring will stall. Make sure to sanitize the counts
so that any batch values is always <= total depth.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/t/io_uring.c b/t/io_uring.c
index 1adb8789..af1b8fa8 100644
--- a/t/io_uring.c
+++ b/t/io_uring.c
@@ -617,6 +617,11 @@ int main(int argc, char *argv[])
 		}
 	}
 
+	if (batch_complete > depth)
+		batch_complete = depth;
+	if (batch_submit > depth)
+		batch_submit = depth;
+
 	submitter = calloc(nthreads, sizeof(*submitter) +
 				depth * sizeof(struct iovec));
 	for (j = 0; j < nthreads; j++) {