From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (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 0B9391DA2FD; Tue, 17 Dec 2024 12:46:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.158.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734439615; cv=none; b=eo85HuetwCw5YSxVEl8tINACPB11F0YkJ0+GfznqEhAKY0veQLZjc8z5yZYIrMXnr5JYomJ/leqkm2EWJAiB3XdiyzSQE90Aq+n89goz/jcbZzfIOqY8sdZ7zpH1H8Wpm2XRgam8r0mtuU5/O5gp1OWibCoQ1tBOzpvRV5B40vQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734439615; c=relaxed/simple; bh=evj4PxzEGydSuI2ztIHdBgp7ptFyHhJjEt/5IFZToZ0=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=HRfwmvaa3VLRBDhdrc5oH29wXQ+tt1IIZoP1raLOIrFYQmMDSSh6Tb+2fd3Ny+Mesj6FqLYEj3xQ4YcGPJae5fsfCQ9oBf2hUXsAPEMPaY7j0dw2MdbJNwrDQuBw7ov2CmyDtAtqnAyfkWXADkWrr6Kd1CSwm76FPIQe4Ha3Wu4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=JJJ3wBUP; arc=none smtp.client-ip=148.163.158.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="JJJ3wBUP" Received: from pps.filterd (m0360072.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4BH85fMA032410; Tue, 17 Dec 2024 12:46:46 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pp1; bh=stztb+ GXK1/u8xPmlrP951omaoVXmCKg16Xagl4aha8=; b=JJJ3wBUPR47LwKnhttFyWF LmEovCsJ5RbqDDL78hpbmLwfCd6/wRZOxmC9ygSh0m0cVA5Wt5XHChFbKe9WwjEH x8CuKAJfkkArVGg898XJ9yVG+L97M61jIOvihDF0ykcVq8ESZrv/vkkVey6xpVCx COeolMmu89cjCskfkDnsQ/w6LcYwe8Acc0c2xzM57FGimLKu48xZQgyrT6QHNSXY AhgYSN9M4qyZsvakAswZeL5eX9D+xJahPeAlF0kX8h5OGT3SGvBLpezYkQNR41qU qOUpowewHtcyl3R4TN7NN7SfKrQtNnGnm/uf3mzMy4efXu4SK3FGQ1AFFfzMihVg == Received: from ppma11.dal12v.mail.ibm.com (db.9e.1632.ip4.static.sl-reverse.com [50.22.158.219]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 43k5g2h5yt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 17 Dec 2024 12:46:46 +0000 (GMT) Received: from pps.filterd (ppma11.dal12v.mail.ibm.com [127.0.0.1]) by ppma11.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 4BH8etAe014397; Tue, 17 Dec 2024 12:46:45 GMT Received: from smtprelay03.dal12v.mail.ibm.com ([172.16.1.5]) by ppma11.dal12v.mail.ibm.com (PPS) with ESMTPS id 43hq21jcwg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 17 Dec 2024 12:46:45 +0000 Received: from smtpav06.wdc07v.mail.ibm.com (smtpav06.wdc07v.mail.ibm.com [10.39.53.233]) by smtprelay03.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 4BHCkipb23134898 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 17 Dec 2024 12:46:44 GMT Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1AB5158064; Tue, 17 Dec 2024 12:46:44 +0000 (GMT) Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B683F58055; Tue, 17 Dec 2024 12:46:40 +0000 (GMT) Received: from [9.43.38.38] (unknown [9.43.38.38]) by smtpav06.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 17 Dec 2024 12:46:40 +0000 (GMT) Message-ID: <274d9e53-0968-4fa6-9729-e81f7f3d660f@linux.ibm.com> Date: Tue, 17 Dec 2024 18:16:39 +0530 Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Change in reported values of some block integrity sysfs attributes To: Christoph Hellwig Cc: linux-block@vger.kernel.org, dm-devel@lists.linux.dev, linux-raid@vger.kernel.org, nvdimm@lists.linux.dev, linux-scsi@vger.kernel.org, hare@suse.de, steffen Maier , Benjamin Block , Nihar Panda References: <20241213143351.GB16111@lst.de> Content-Language: en-US From: M Nikhil In-Reply-To: <20241213143351.GB16111@lst.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: rdPrPVX8tBICgLZ8vA8-XwFtXA8H2YRR X-Proofpoint-GUID: rdPrPVX8tBICgLZ8vA8-XwFtXA8H2YRR X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 bulkscore=0 phishscore=0 clxscore=1015 priorityscore=1501 lowpriorityscore=0 impostorscore=0 suspectscore=0 spamscore=0 mlxlogscore=911 malwarescore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2412170101 Hi Christoph, We did not modify 'device_is_integrity_capable' attribute. On 13/12/24 8:03 pm, Christoph Hellwig wrote: > Hi M, > > On Fri, Dec 13, 2024 at 12:46:14PM +0530, M Nikhil wrote: >> Hi Everyone, >> >> * We have observed change in the values of some of the block integrity >> sysfs attributes for the block devices on the master branch. The >> sysfs attributes related to block device integrity , write_generate >> and read_verify are  enabled for the block device when the parameter >> device_is_integrity_capable is disabled. This behaviour is seen on >> the scsi disks irrespective of DIF protection enabled or disabled on >> the disks. > As in after a "echo 1 > /sys/.../device_is_integrity_capable" ? > > I'll look into it. >