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mm/damon/reclaim: make 'enabled' checking timer simpler

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DAMON_RECLAIM's 'enabled' parameter store callback ('enabled_store()')
schedules the parameter check timer ('damon_reclaim_timer') if the
parameter is set as 'Y'.  Then, the timer schedules itself to check if
user has set the parameter as 'N'.  It's unnecessarily complex.

This commit makes it simpler by making the parameter store callback to
schedule the timer regardless of the parameter value and disabling the
timer's self scheduling.

Link: https://lkml.kernel.org/r/20220606182310.48781-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2022-06-06 18:23:09 +00:00 committed by akpm
parent a79b68ee3e
commit f943e7e3a4
1 changed files with 1 additions and 8 deletions
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9
mm/damon/reclaim.c
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@ -353,7 +353,6 @@ static int damon_reclaim_turn(bool on)
return 0;
}
#define ENABLE_CHECK_INTERVAL_MS 1000
static struct delayed_work damon_reclaim_timer;
static void damon_reclaim_timer_fn(struct work_struct *work)
{
@ -367,10 +366,6 @@ static void damon_reclaim_timer_fn(struct work_struct *work)
else
enabled = last_enabled;
}
if (enabled)
schedule_delayed_work(&damon_reclaim_timer,
msecs_to_jiffies(ENABLE_CHECK_INTERVAL_MS));
}
static DECLARE_DELAYED_WORK(damon_reclaim_timer, damon_reclaim_timer_fn);
@ -388,9 +383,7 @@ static int enabled_store(const char *val,
if (!damon_reclaim_initialized)
return rc;
if (enabled)
schedule_delayed_work(&damon_reclaim_timer, 0);
schedule_delayed_work(&damon_reclaim_timer, 0);
return 0;
}