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Message-Id: <20240911-devel-anna-maria-b4-timers-flseep-v2-8-b0d3f33ccfe0@linutronix.de>
Date: Wed, 11 Sep 2024 07:13:34 +0200
From: Anna-Maria Behnsen <anna-maria@...utronix.de>
To: Frederic Weisbecker <frederic@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>, Jonathan Corbet <corbet@....net>
Cc: linux-kernel@...r.kernel.org, Len Brown <len.brown@...el.com>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Anna-Maria Behnsen <anna-maria@...utronix.de>,
SeongJae Park <sj@...nel.org>, Andrew Morton <akpm@...ux-foundation.org>,
damon@...ts.linux.dev, linux-mm@...ck.org
Subject: [PATCH v2 08/15] mm/damon/core: Use generic upper bound
recommondation for usleep_range()
The upper bound for usleep_range_idle() was taken from the outdated
documentation. As a recommondation for the upper bound of usleep_range()
depends on HZ configuration it is not possible to hard code it.
Use the define "USLEEP_RANGE_UPPER_BOUND" instead.
Cc: SeongJae Park <sj@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: damon@...ts.linux.dev
Cc: linux-mm@...ck.org
Signed-off-by: Anna-Maria Behnsen <anna-maria@...utronix.de>
Reviewed-by: SeongJae Park <sj@...nel.org>
---
mm/damon/core.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 94fe2f1f9b0e..4b971871da75 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -1883,8 +1883,7 @@ static unsigned long damos_wmark_wait_us(struct damos *scheme)
static void kdamond_usleep(unsigned long usecs)
{
- /* See Documentation/timers/timers-howto.rst for the thresholds */
- if (usecs > 20 * USEC_PER_MSEC)
+ if (usecs >= USLEEP_RANGE_UPPER_BOUND)
schedule_timeout_idle(usecs_to_jiffies(usecs));
else
usleep_range_idle(usecs, usecs + 1);
--
2.39.2
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