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Thu, 27 Feb 2025 01:58:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740621487; bh=S9XFinRzq8Qckj8OZ3J96suStAifVelwVdFkfT6lwsE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WFg4aUZpcvDAJt0FMFBylM4KTG431Bd2TRJeJRv7JGBWoHnrsuUQdQLRTT84gi0aN jSZn4AmmhGfesBe8je+1OKX9QewD8rGm8sTkaO/ueid/QTNyvwT/+bt/E4+QTn49tA F/24IP1GLwnSIyFU6EZq9BzGAlFDJbaacDr4NPETqZ/0IKg9mthPql3jFwtf3NJiJh 6cIwyyXOylr8SoA/vObsNNTb/TsoqtEETIzcj6b/6SQmhJnzD3xykHaiIbr7HlfThh SOyhSqCFz3q+HZKSfR1FkujwGAGN5Pf5yOTLzdgRXwDkOP7mmrJh0MBaBrIl3aOTiK PcaKpNlf9SmUQ== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v2 6/9] mm/damon: add default allow/reject behavior fields to struct damos Date: Wed, 26 Feb 2025 17:57:51 -0800 Message-Id: <20250227015754.38789-7-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250227015754.38789-1-sj@kernel.org> References: <20250227015754.38789-1-sj@kernel.org> MIME-Version: 1.0 X-Stat-Signature: ebddrqyek79j6xq3dkqmaidk3hdzc5r1 X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 4DD4140004 X-Rspam-User: X-HE-Tag: 1740621488-388915 X-HE-Meta: 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 CoBnu/uk f93Rsf8scbcNdT+t8o5+sB0ep+VWuxSM9ncvsZ2X68FUdod33n/V8AwgypVhHGoYHxdeKPGflHq7URl+Wl3HF9E6DoY+mf4M6oqNatO6VMBGZz4LQycCjilpYPPZPpIB6dIHE28KjJKiDjHANKlbVs6kfqvbr4bjU5vuBQlk5mkK8EnwLzgGCi5a0189DkFertD2As4h+zmEU5nJdqvFOa1BdXNT/64fw+BX4y2AhxMEkVN4= 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: Current default allow/reject behavior of filters handling stage has made before introduction of the allow behavior. For allow-filters usage, it is confusing and inefficient. It is more intuitive to decide the default filtering stage allow/reject behavior as opposite to the last filter's behavior. The decision should be made separately for core and operations layers' filtering stages, since last core layer-handled filter is not really a last filter if there are operations layer handling filters. Keeping separate decisions for the two categories can make the logic simpler. Add fields for storing the two decisions. Signed-off-by: SeongJae Park --- include/linux/damon.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/damon.h b/include/linux/damon.h index add82fdc1117..1d8479f57f85 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -497,6 +497,9 @@ struct damos { unsigned long next_apply_sis; /* informs if ongoing DAMOS walk for this scheme is finished */ bool walk_completed; + /* whether to reject core/ops filters umatched regions */ + bool core_filters_default_reject; + bool ops_filters_default_reject; /* public: */ struct damos_quota quota; struct damos_watermarks wmarks;