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b=tGDFUtKyB2aBLklonbKqRX1K/OAwoFApnAAISTqDhc3Z65P5N01TsAk+x46RRDyER SjzbfPnU3GKG/8DK9KPAeuhuV+j/XMIEkoX/Eqd+KdhETEkjrDTWpCKSXQ7Kp+q6DM iWx3/E8YYW57igz2Rew49DmXqvQyH+SuJf0uqBLXP+41qQJFy0GkF+nvwcdNha86wu ewGzVsz4Rmf8PlY55nv79k4NwScDJdlzghmCojMoz+3Dp528wuX3W0kn0Lu3QYqKKt NyFbKoSuZANRagwvcx12ZXolv4MHUPCCaKTT0NxhHS4SQsEG9IlRjPjpdguqOMqyZE i4w+y9XloLzJg== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , "# 6 . 17-rc1" , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 3/3] samples/damon/mtier: avoid starting DAMON before initialization Date: Mon, 8 Sep 2025 19:22:38 -0700 Message-Id: <20250909022238.2989-4-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250909022238.2989-1-sj@kernel.org> References: <20250909022238.2989-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 3F12FA0004 X-Stat-Signature: hh39bu3ggct48rdnh4shbt1mbbs68h7o X-Rspam-User: X-HE-Tag: 1757384566-620256 X-HE-Meta: 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 0JgR18US 0Q5k/uFrR9I+g3u1/pH9De3TS0U2vmUDtlRXj5ieOwB8aGYiWz5w1DRGAd/puHEqGVWsE0Urk+btRCeZsihUMi2cxSQbM2pNoIh5s7haM0vVxX5GA2YwRtu6X2lo3r/4DdlHQYKQjVVfzVxHQyKL/MQEX4jWcYT1YTmB6fV6Clo6kYDmoMKW0pNXtaWM7oWmVvYTVw3Xk+cXIHXaSPrmt6/BcgEKQEdEiW3rTm8zPopHZSrY= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Commit 964314344eab ("samples/damon/mtier: support boot time enable setup") is somehow incompletely applying the origin patch [1]. It is missing the part that avoids starting DAMON before module initialization. Probably a mistake during a merge has happened. Fix it by applying the missed part again. [1] https://lore.kernel.org/20250706193207.39810-4-sj@kernel.org Fixes: 964314344eab ("samples/damon/mtier: support boot time enable setup") Cc: # 6.17-rc1 Signed-off-by: SeongJae Park --- samples/damon/mtier.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/samples/damon/mtier.c b/samples/damon/mtier.c index 7ebd352138e4..beaf36657dea 100644 --- a/samples/damon/mtier.c +++ b/samples/damon/mtier.c @@ -208,6 +208,9 @@ static int damon_sample_mtier_enable_store( if (enabled == is_enabled) return 0; + if (!init_called) + return 0; + if (enabled) { err = damon_sample_mtier_start(); if (err) -- 2.39.5