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[2620:137:e000::1:20]) by mx.google.com with ESMTP id m23-20020aa7d357000000b0046bce131279si10966643edr.13.2023.01.10.11.05.13; Tue, 10 Jan 2023 11:05:37 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=CLZxihBA; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239732AbjAJTEy (ORCPT + 99 others); Tue, 10 Jan 2023 14:04:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47114 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239667AbjAJTEK (ORCPT ); Tue, 10 Jan 2023 14:04:10 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 486C913E90; Tue, 10 Jan 2023 11:04:10 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id C3A93618A8; Tue, 10 Jan 2023 19:04:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B1CDBC43396; Tue, 10 Jan 2023 19:04:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1673377449; bh=y7EJfcMY/StD0BzUoTQruwXSI1p0oqW6ITb/hdOvcrQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CLZxihBAiJLZVfs0Gql2wf2QPPpAjOoIvVTvC1iFyj15MBftu/CkfH34Vda0M8H6A LVdNE4VpqvAcjUx/zCJtqza160cp3d50h7xIVoxs60At+V3fa0aN6iunDJ7NIIJT0Y uLELoRXyzQpaM/X4QQJzBSrER3vmzj0DSOzyhP+cmAqIO2ldcW1K5BrRXmvprqlOio kWJAaRkw33Y7Qb2FfE3pAkEjdB919Knkdv2dqXm3aJMFHqS3pmTEWyFN8SzIhwt0tx J9xaMoKq9Ad7/6vJKGdeOLKcMhTsN2yzZvnJLAmfSx3F+TGIGrmbMuIwiZejTfiXQw gS7Fy5LrDtfzw== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , Shuah Khan , damon@lists.linux.dev, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 7/8] selftests/damon/sysfs: hide expected write failures Date: Tue, 10 Jan 2023 19:03:59 +0000 Message-Id: <20230110190400.119388-8-sj@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230110190400.119388-1-sj@kernel.org> References: <20230110190400.119388-1-sj@kernel.org> MIME-Version: 1.0 X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1754663525135264911?= X-GMAIL-MSGID: =?utf-8?q?1754663525135264911?= DAMON selftests for sysfs (sysfs.sh) tests if some writes to DAMON sysfs interface files fails as expected. It makes the test results noisy with the failure error message because it tests a number of such failures. Redirect the expected failure error messages to /dev/null to make the results clean. Signed-off-by: SeongJae Park --- tools/testing/selftests/damon/sysfs.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/damon/sysfs.sh b/tools/testing/selftests/damon/sysfs.sh index a00336ffdcad..bcd4734ca094 100644 --- a/tools/testing/selftests/damon/sysfs.sh +++ b/tools/testing/selftests/damon/sysfs.sh @@ -24,7 +24,7 @@ ensure_write_fail() content=$2 reason=$3 - if echo "$content" > "$file" + if (echo "$content" > "$file") 2> /dev/null then echo "writing $content to $file succeed ($fail_reason)" echo "expected failure because $reason"