[PATCH 08/15] mm/damon/core: Use generic upper bound recommondation for usleep_range()

Anna-Maria Behnsen
2024-09-04T13:05:37Z

The upper bound for usleep_range_idle() was taken from the outdated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@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: damon@lists.linux.dev
Cc: linux-mm@kvack.org
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
---
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