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imf28.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=drn30NTu; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf28.hostedemail.com: domain of sj@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=sj@kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1784003683; b=jk5KQT0Xf/DIlTXPykcWIhc858GyzlhMGwVqoIAjLyR8fatAHCasbRoVDTsVjwwzonVGre VmBKT2NlpVmq/qCutapmg7rpdUAex3ZRVKZDr/KqCnb/lO2unOXu6ZvMw7dX56DNzEdRhp MbPLy07buoFxfexWToF88bqkuL8YLa8= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id E22A0601EC; Tue, 14 Jul 2026 04:34:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6D7201F000E9; Tue, 14 Jul 2026 04:34:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784003682; bh=5HorvAmOdD8OW3Wub7kaOWmH60W1P8iHnRf74xopIeM=; h=From:To:Cc:Subject:Date; b=drn30NTuEyGs0VhHRcO2ejG3YH6liKQeRe5AxNWRh4i/+A7XpsuZmrdwvvX+lwJSl 6AOeFEtEzP2ViEBt/iijZ3ehOfYqar+arJbzUHe2tAOkP3cAEd/hu9Smprb7kIxoX8 t3QlN8GCMK60uFV9IJ7ihwhEMvhhTBluAKDKNjNFj1BiBRC6yx3Yj1dPK+Pi+3rR3p 6DOZsqtarnk0GVD+7HgGYPXnExDizW1R/P+MbLlVe6t8nn7qEVM5c54prvGLUxAPW/ bEPxRqBbBOh4ix9OHRKoKgxE2wi3HFVfeFoBdjWTdkr/YHC4uRJU+bOFVFaTFnIBX9 BlAa6+mUSZN4w== From: SJ Park To: Cc: SJ Park , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 00/10] mm/damon/core: hide core-private struct fields Date: Mon, 13 Jul 2026 21:34:26 -0700 Message-ID: <20260714043437.95811-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 9F8A1C0003 X-Stat-Signature: yyqxp7qtmsxciud475ramp48r9ogdd9h X-HE-Tag: 1784003683-150342 X-HE-Meta: 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 V+roUKzl ceae3fEfHruMHjJU/nUQfU2d67dFBVaifLoB9ZFlVReltQUc7IgJvmmS3gM1M0QCJZOZ4akrt47ROXHvnAIUxxZnjM+4wQTf29L4mdMwAMKzpP9nxq5jb4H032YHbpO8nvmQNnTWuGExrx9WihpzgbVDJ5gbI32gti37C3qZcZY82EILZSxwDv7CLu7GkavfOcNDN4WJqh9jamD4= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: DAMON core structs hide core-private fields using 'private:' comment tags. It is incomplete and inconsistent. The linked list heads in a few structs, for example, are intended to be hidden, and always be used using the wrapper macros like damon_for_each_region(). But those were mistakenly marked as non-private. A few core layer-only fields were also mistakenly added as non-private. This only encourages callers to directly use the private fields. It is easy to make mistakes, and difficult to control. Mark all such DAMON core struct fields as private. Patches 1-8 mark the private fields for damon_region, damon_target, damos_quota_goal, damos_quota, damos_filter, damos, damon_filter and damon_probe, respectively. Patch 9 removes DAMON_SYSFS's direct access to core-private field, damon_ctx->ops. Finally patch 10 mark the private fields for damon_ctx. SJ Park (10): mm/damon/core: hide private damon_region fields mm/damon/core: hide private damon_target fields mm/damon/core: hide private damos_quota_goal fields mm/damon/core: hide private damos_quota fields mm/damon/core: hide private damos_filter fields mm/damon/core: hide private damos fields mm/damon/core: hide private damon_filter fields mm/damon/core: hide private damon_probe fields mm/damon/sysfs: do not directly access damon_ctx->ops mm/damon/core: hide core-private damon_ctx fields include/linux/damon.h | 110 +++++++++++++++++++++++------------------- mm/damon/sysfs.c | 2 +- 2 files changed, 62 insertions(+), 50 deletions(-) base-commit: ddf3f75c217672edd46466c9156d64abf5119b68 -- 2.47.3