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b=H8WmWqp5pOIN39aMPaQGFH+p5aZKw8AS/c6J3FPzO732FLWrX8np8QOplYlf99KmU iEHgPMCPLCFVQU5dkRKVNXmX5pVqGuQDgJQWE+9HNSfjA5K/5crGndLV4wspg2YJoU tVWAg5+0sCauY+ilkIvLzlVtDeKQLQLB0n48QpCVmJ8HqHGo/HNIZrPzDiwmm1EbWa LUYDAECjiJEoz5wW0N+N3DIx+Qcy4hSiLLjHjKgSUxvbdCmbMVdi4j75KITa2tIobL fJt1nuTboznH6bRjz9UYPMG4qyG84DSi/uZXkeKX9Hdv6WnTywHmOFsnYySygOJF+U ceUktNuq9G4rA== 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 07/14] samples/damon/wsse: use damon_call() repeat mode instead of damon_callback Date: Sun, 6 Jul 2025 13:00:11 -0700 Message-Id: <20250706200018.42704-8-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250706200018.42704-1-sj@kernel.org> References: <20250706200018.42704-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 0B6F440004 X-Stat-Signature: d4it4xq6s9w1kop687yj5z5g9nhtqm1m X-Rspam-User: X-HE-Tag: 1751832032-575207 X-HE-Meta: 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 QE1fcpGp fJGfGYjnoO44qqgeWF1Az3JqkInWiatXl4dBaEvcR4QTYV5q6lKRLwJfrT2ndZ65oXsB7p9wFwZaQzZ7DE2ZeIE2JQICjWxJm++Lxa08VHw1g9QziRHfN0GuSvGh58Ejqyy4iEovzxl9tyVwIiHEAMC/ewBVLdKWZSYN+TMvkOmSPurtb24e6nR7+T0tF5wqHgoInpPY70Nuf8fpWXltHQPMTPiNTmCcG/hQ6Ugganlw9p7kiF8H6OmsBkg== 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: wsse uses damon_callback for periodically reading DAMON internal data. Use its alternative, damon_call() repeat mode. Signed-off-by: SeongJae Park --- samples/damon/wsse.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/samples/damon/wsse.c b/samples/damon/wsse.c index 6037e5f8adf2..fb24190d2fc0 100644 --- a/samples/damon/wsse.c +++ b/samples/damon/wsse.c @@ -35,8 +35,9 @@ MODULE_PARM_DESC(enable, "Enable or disable DAMON_SAMPLE_WSSE"); static struct damon_ctx *ctx; static struct pid *target_pidp; -static int damon_sample_wsse_after_aggregate(struct damon_ctx *c) +static int damon_sample_wsse_repeat_call_fn(void *data) { + struct damon_ctx *c = data; struct damon_target *t; damon_for_each_target(t, c) { @@ -52,9 +53,15 @@ static int damon_sample_wsse_after_aggregate(struct damon_ctx *c) return 0; } +static struct damon_call_control repeat_call_control = { + .fn = damon_sample_wsse_repeat_call_fn, + .repeat = true, +}; + static int damon_sample_wsse_start(void) { struct damon_target *target; + int err; pr_info("start\n"); @@ -79,8 +86,11 @@ static int damon_sample_wsse_start(void) } target->pid = target_pidp; - ctx->callback.after_aggregation = damon_sample_wsse_after_aggregate; - return damon_start(&ctx, 1, true); + err = damon_start(&ctx, 1, true); + if (err) + return err; + repeat_call_control.data = ctx; + return damon_call(ctx, &repeat_call_control); } static void damon_sample_wsse_stop(void) -- 2.39.5