linux-kernel - [PATCH 2/4] mm/damon/vaddr: Use pr_debug() for damon_va_three

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Date:   Wed, 29 Dec 2021 13:10:14 +0000
From:   SeongJae Park <sj@...nel.org>
To:     akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        SeongJae Park <sj@...nel.org>
Subject: [PATCH 2/4] mm/damon/vaddr: Use pr_debug() for damon_va_three_regions() failure logging

Failure of 'damon_va_three_regions()' is logged using 'pr_err()'.  But,
the function can fail in legal situations.  To avoid making users be
surprised and to keep the kernel clean, this commit makes the log to be
printed using 'pr_debug()'.

Signed-off-by: SeongJae Park <sj@...nel.org>
---
 mm/damon/vaddr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 9e213a1d60c9..7997e1c000ed 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -238,7 +238,7 @@ static void __damon_va_init_regions(struct damon_ctx *ctx,
 	int i;
 
 	if (damon_va_three_regions(t, regions)) {
-		pr_err("Failed to get three regions of target %lu\n", t->id);
+		pr_debug("Failed to get three regions of target %lu\n", t->id);
 		return;
 	}
 
-- 
2.17.1