From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E3E9B3EBF3E; Sat, 21 Feb 2026 19:36:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771702595; cv=none; b=lpdIFfQ45JOmAeW+XfR1htBEva6Gw/hK3lMSwD/rauDx0Ii9okuOQsOwVcHgxZ2gyBvuocFtovLkl+v/dIqMoFf5Vd5qsHjErogjKRVjkeyuJxQgTa9R1xMlHUJKkJ/4Uhq8qdigXqEwK7nAq6xgRHGrNnm+hyL2VfgHFz20fhE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771702595; c=relaxed/simple; bh=NP5yGYScgnKGoybmv99+TvTrjNGo877C34B0II+hAcY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=c5GQ7qTsaA71hIMNCYMV9K75e6raCMdHMyHkg3KOO291mWVjRHATORC/yxQU7T3NUPnEzNJQ2x1dlinyRAVFYj8NwMoAkQduDiiPFCqa9Jt6bLtDqEHtqSIUza7VSkF0WDD1F7C3Y3RU7FzszulGnQqwZ3qxIQ7BXK+OkrDmpcc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=f/wZ7aER; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="f/wZ7aER" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 973C6C19422; Sat, 21 Feb 2026 19:36:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771702594; bh=NP5yGYScgnKGoybmv99+TvTrjNGo877C34B0II+hAcY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=f/wZ7aERGs2PvqVhMrKPyc6Tc+lGG1/WZh2v8Sb4EoKD5+7RTgO9/TJc5ZAfJXkvp eb5b2xcJ3HFcTadFVuhNa8aNxrjCf+yOxE1DS2O847hktwk22wgrJ02hc+cvEsNlg4 yEPg8AcEKU9J3oc1IdwNrhSWZq3FPC15HSY0XFrJ0MyjN0RhP0fCurfvjnAAMUzFox lnGtcsT8xfuFl6BLGuiT16hYzCgHtqMZkm2Ni8USIF4ehnaQyZ+jdGGH7oJf9Z5ws5 xCb40o6OBnj1RMff/oNVgxYUcxQXyfXf/Y/J9GwvGyFFTQNnmHhknLyf8oEEM/BH/r QKg5pTnR6c9Uw== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 01/10] mm/damon: add CONFIG_DAMON_DEBUG_SANITY Date: Sat, 21 Feb 2026 11:36:18 -0800 Message-ID: <20260221193629.19332-2-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260221193629.19332-1-sj@kernel.org> References: <20260221193629.19332-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add a new build config that will enable additional DAMON sanity checks. It is recommended to be enabled on only development and test setups, since it can impose additional overhead. Signed-off-by: SeongJae Park --- mm/damon/Kconfig | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig index 8c868f7035fce..413adbd8e4089 100644 --- a/mm/damon/Kconfig +++ b/mm/damon/Kconfig @@ -12,6 +12,17 @@ config DAMON See https://www.kernel.org/doc/html/latest/mm/damon/index.html for more information. +config DAMON_DEBUG_SANITY + bool "Check sanity of DAMON code" + depends on DAMON + help + This enables additional DAMON debugging-purpose sanity checks in + DAMON code. This can be useful for finding bugs, but impose + additional overhead. This is therefore recommended to be enable on + only development and test setups. + + If unsure, say N. + config DAMON_KUNIT_TEST bool "Test for damon" if !KUNIT_ALL_TESTS depends on DAMON && KUNIT=y -- 2.47.3