[RFC PATCH v1.2 15/19] mm/damon/core: implement damon_has_probe_weight()

[SJ Park]

DAMON monitors only data attributes when probe weights are set.
However, the function for detecting it is intentionally returning false
always.  The intention was to make changes for complete support of the
mode in a safe and incremental way.  Now all the building blocks are
made.  Complete the mode detection function so that the mode can really
start working.

Signed-off-by: SJ Park <sj@xxxxxxxxxx>
---
 mm/damon/core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index 12c66edecd783..6661d4bfab5b9 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -211,6 +211,12 @@ static struct damon_probe *damon_nth_probe(int n, struct damon_ctx *ctx)
 
 static bool damon_has_probe_weights(struct damon_ctx *c)
 {
+	struct damon_probe *p;
+
+	damon_for_each_probe(p, c) {
+		if (p->weight)
+			return true;
+	}
 	return false;
 }
 
-- 
2.47.3