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bh=LS4CO1+OYp8+pSPAS3NbVTVyYCl94ZecPiNEYxC3hmA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=JwjGmKH8EFGhoDc831CIAQSrtTGXEUzuPUo/drzvqVbSey/lZGCwsp++HLFvK8Ci8 0ZwaKWeXPMjXieC/ALlqSwTXyaHUx95hH6XpL7nUeOB5Fws1aMqx8CIuX6yKtYwhJ+ lcj4RAd/d8qUrKXV7IRufXex9bJddFpAKI9d9p03t45Us5pgzmh9bzsqFK2rfNEf5q DOYGDLhxo10R8YtJ8aZnvi7Hzn63kQTMY2ZiblwTUuCveq+EDxBvKiVXJlBykk9veF WS8uH842NJmjvX5v4+1pMlqrL8SDLQbKBUSVcxuvtD3ydhikrd8OwatiG+rj2XU/Nv UzPHHDHyCSdMA== From: SJ Park To: Cc: SJ Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 08/11] samples/damon/mtier: stop all contexts with single damon_stop() call Date: Sat, 4 Jul 2026 11:11:31 -0700 Message-ID: <20260704181135.132956-9-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260704181135.132956-1-sj@kernel.org> References: <20260704181135.132956-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: DAE9F40006 X-Stat-Signature: jf4qusnm3z8y81xb1t99jn3kr6xhrswc X-HE-Tag: 1783188707-670465 X-HE-Meta: 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 61JqoRdh YcKtavANF0butJjfoQGnm16lK39ZsRvc2RoFOsnehrRidYlh45AXgFgFq5baBOH2SQ2SPgy6QCT5jIC6AQQ+A/w2qSmEzqnC+N8dkwkNgHOK1dsrMExigFYf/48bwa55uCN1ONSMA7s5lEhLm1OB/v+n2jX5x4jxEQpPPAItlrozhls6q23VthoPUQ+8RPrPMUUpXZ9Gn4qD0xdIjoqyyRgm6m8uqowdezJBIABR4NBZXyl7K/sUvNxk8GhJslgmgaP3LyjObccU1rPYuf+NULkixhd9Pc8vhCt40VS9l/QXg5U5dOOhqauZscie6XPObjJNXyPnRiOj23O4/nL8htQBOceaO0nLh1kVPTdzCV9ciDtZXzYaRQsGTWg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: damon_stop() was theoretically able to return failure while keeping the second context for mtier running. mtier stops its contexts one by one with two damon_stop() call for the reason. damon_stop() is refactored to always successfully stop all requested DAMON contexts. The two calls are unnecessary. Use only single damon_stop() call for all contexts. Signed-off-by: SJ Park --- samples/damon/mtier.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/samples/damon/mtier.c b/samples/damon/mtier.c index 90881e8bd441f..ac9c24b92ead8 100644 --- a/samples/damon/mtier.c +++ b/samples/damon/mtier.c @@ -200,8 +200,7 @@ static int damon_sample_mtier_start(void) static void damon_sample_mtier_stop(void) { - damon_stop(ctxs, 1); - damon_stop(&ctxs[1], 1); + damon_stop(ctxs, 2); damon_destroy_ctx(ctxs[0]); damon_destroy_ctx(ctxs[1]); } -- 2.47.3