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b=mod0YMvxWwnNieAilRhZlXa4fBY4k1B/jJ17n9UWCbmMi8tkIdmEXYbLd0hemF6zl HxM2L6kryfF9ldwH07+K0/KgPRPkPiFUU4xuZSIjEvAdK6Bs5vjTA7Xn8GTtV0jaPr +wJAGhSpxF0iREV3CuCo/s5JHxuGknG0grRFJYdh+PhcuKRCWH1G2c35vfT7cDjGgs 2jl5pUDv6kjRvSOtroA90n4qKz3x1JOGpv/XLQpTaDf8vvvzFR+/ANK7xoSGHWHfJh j7DJ2TUof92FhIrcYDeuWCrxBfjHJ3b2irKbJ1dI384MzRF7eA8pui8BffCThCxpJ9 lLO8+QNGPv66g== 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 09/10] mm/damon/sysfs: do not directly access damon_ctx->ops Date: Mon, 13 Jul 2026 21:34:35 -0700 Message-ID: <20260714043437.95811-10-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260714043437.95811-1-sj@kernel.org> References: <20260714043437.95811-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: awgf6kr5kj98wcw9ufough7n4kc89uzm X-Rspamd-Queue-Id: A69D0140009 X-Rspam-User: X-Rspamd-Server: rspam07 X-HE-Tag: 1784003686-901429 X-HE-Meta: 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 dOVJiXRt 7gaAx7SPR0XRShoBto93+7Ev0k2rK3klXZEVbwEvHBM//CZnrf3mQDYxSKcwiQxOjY9Q+aJ+OE98mNL0QjudZr8VyjjdOFTvk7J6dtdc6xqB9ZqicISAC3WBCzzu2jUWCD4TFckB7EnnZQsmRLKwUFHqN1lWxLzajAtwwk6AsKMqgDT1kW21VJZD4VOnYyNelkPngZV7wZM759RYtVf//EfPCfS5QKRZAjpzlLTrijSwdv+nQ/DpI/3H5u1dA3ROmYZxxSnMWJvOkTm7V/GrA9wpeyQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: damon_ctx->ops field is intended to be used by only the DAMON core layer. DAMON_SYSFS is directly reading the field to find if it is for physical address monitoring, though. Use the API function for the purpose, damon_target_has_pid(), instead. Signed-off-by: SJ Park --- mm/damon/sysfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index 60a1a9e4ada34..228ceb4df5f97 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -2051,7 +2051,7 @@ static int damon_sysfs_add_targets(struct damon_ctx *ctx, int i, err; /* Multiple physical address space monitoring targets makes no sense */ - if (ctx->ops.id == DAMON_OPS_PADDR && sysfs_targets->nr > 1) + if (!damon_target_has_pid(ctx) && sysfs_targets->nr > 1) return -EINVAL; for (i = 0; i < sysfs_targets->nr; i++) { -- 2.47.3