From patchwork Wed Jan 3 11:49:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shin'ichiro Kawasaki X-Patchwork-Id: 13509933 Received: from esa2.hgst.iphmx.com (esa2.hgst.iphmx.com [68.232.143.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7C0ED18EA2 for ; Wed, 3 Jan 2024 11:49:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wdc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=wdc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b="cx3nH3Xf" DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1704282588; x=1735818588; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Dqd6LPhTRmVa5Riz+5UDit2qkTES2NYbxD5ROxv2jGU=; b=cx3nH3Xf7i5YDPtkufJW0nqWJ5uwBXavVN8pr7qEamlyLuTKeDKZD30L Nj9k60bjvVyiUVAFY2+1YZyvrmQEILgGj7KG51KG0PceHupdAEcSRV9+j B+wcg+XRPZ4gfk8kEVy8sX3L9Sx8dO1LhJPKYGkQEU1+cdpEFboo79Fj8 neIGfV5N6BDEfiDZPLN9t2eM2nDogQrxOjNOVBaXnXUEJan5obV3PBdPi MqPBsDFX3mxRd8fbBgJa30UjpiTpbbOWbBEjppsOgKJycqoTirOimKZ/m IClRHbsUXlFImzPv319aZes5y8opAEXeM8qrevDPW/oqY7CCkjsFRn38u Q==; X-CSE-ConnectionGUID: ysKuvNjWTj20HtRogUthPw== X-CSE-MsgGUID: 3yZwsr74TqiLHgUPks1TpQ== X-IronPort-AV: E=Sophos;i="6.04,327,1695657600"; d="scan'208";a="6081452" Received: from h199-255-45-14.hgst.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 03 Jan 2024 19:49:41 +0800 IronPort-SDR: /9QOj9+OxfrDv+8fVCk268vFGyxs/aQtx8iq0yJZ2z2ht4QK80/3vU+QD/23CkUiI5HloiyUWp 5/EEYsPoN4vQ== Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 03 Jan 2024 03:00:08 -0800 IronPort-SDR: cYxzeQJpxkqNCr3w1fBGfN/k2FxreZCkcpX50BdY9/p8ugJqZyFXz7CXkvfo+V5Y4eWPCMt87R V6/ykpYNoezA== WDCIronportException: Internal Received: from unknown (HELO shindev.ssa.fujisawa.hgst.com) ([10.149.66.30]) by uls-op-cesaip02.wdc.com with ESMTP; 03 Jan 2024 03:49:42 -0800 From: Shin'ichiro Kawasaki To: linux-block@vger.kernel.org Cc: Shin'ichiro Kawasaki Subject: [PATCH blktests 1/2] common/null_blk: introduce _have_null_blk_feature Date: Wed, 3 Jan 2024 20:49:39 +0900 Message-ID: <20240103114940.3000366-2-shinichiro.kawasaki@wdc.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240103114940.3000366-1-shinichiro.kawasaki@wdc.com> References: <20240103114940.3000366-1-shinichiro.kawasaki@wdc.com> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Introduce a helper function _have_null_blk_feature which checks /sys/kernel/config/features. It allows test cases to adapt to null_blk feature support status. Signed-off-by: Shin'ichiro Kawasaki --- common/null_blk | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/common/null_blk b/common/null_blk index 91b78d4..d2f9e88 100644 --- a/common/null_blk +++ b/common/null_blk @@ -10,6 +10,10 @@ _have_null_blk() { _have_driver null_blk } +_have_null_blk_feature() { + grep -qe "$1" /sys/kernel/config/nullb/features +} + _remove_null_blk_devices() { if [[ -d /sys/kernel/config/nullb ]]; then find /sys/kernel/config/nullb -mindepth 1 -maxdepth 1 \