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mm/damon/sysfs: don't hold kdamond_lock in before_terminate()

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damon_sysfs_before_terminate() is a DAMON callback that is executed from
the kdamond's context.  Hence it is safe to access DAMON context internal
data.  But the function is unnecessarily holding kdamond_lock of the
context.  It is just unnecessary.  Remove the locking code.

Link: https://lkml.kernel.org/r/20250705175000.56259-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park
2025-07-05 10:49:59 -07:00
committed by Andrew Morton
parent d2b5be741a
commit e000df9ff1
1 changed files with 0 additions and 2 deletions
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2
mm/damon/sysfs.c
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@@ -1387,12 +1387,10 @@ static void damon_sysfs_before_terminate(struct damon_ctx *ctx)
if (!damon_target_has_pid(ctx))
return;
mutex_lock(&ctx->kdamond_lock);
damon_for_each_target_safe(t, next, ctx) {
put_pid(t->pid);
damon_destroy_target(t);
}
mutex_unlock(&ctx->kdamond_lock);
}
/*