From: Jens Axboe <axboe@kernel.dk>
Date: Mon, 13 Jan 2020 21:51:35 +0000 (-0700)
Subject: time: limit usec_sleep() to maximum intervals of 1 second
X-Git-Tag: fio-3.18~16
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=7eff05d723d1330a5407b2bdd9145f1bfb6dd0e1

time: limit usec_sleep() to maximum intervals of 1 second

The total sleep may be much longer, but wakeup every ~1 second at least
to check if we got signaled to exit.

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

diff --git a/time.c b/time.c
index 19999699..cd0e2a89 100644
--- a/time.c
+++ b/time.c
@@ -57,6 +57,13 @@ uint64_t usec_sleep(struct thread_data *td, unsigned long usec)
 		if (ts >= 1000000) {
 			req.tv_sec = ts / 1000000;
 			ts -= 1000000 * req.tv_sec;
+			/*
+			 * Limit sleep to ~1 second at most, otherwise we
+			 * don't notice then someone signaled the job to
+			 * exit manually.
+			 */
+			if (req.tv_sec > 1)
+				req.tv_sec = 1;
 		} else
 			req.tv_sec = 0;