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Wed, 8 Jan 2025 10:57:52 +0000 (GMT) Message-ID: <7a867d10-923e-4c9b-ab34-9d084474d499@linux.ibm.com> Date: Wed, 8 Jan 2025 16:27:51 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 10/10] loop: fix queue freeze vs limits lock order To: Christoph Hellwig , Jens Axboe Cc: Damien Le Moal , Ming Lei , linux-block@vger.kernel.org, linux-nvme@lists.infradead.org, nbd@other.debian.org, linux-scsi@vger.kernel.org, usb-storage@lists.one-eyed-alien.net References: <20250108092520.1325324-1-hch@lst.de> <20250108092520.1325324-11-hch@lst.de> Content-Language: en-US From: Nilay Shroff In-Reply-To: <20250108092520.1325324-11-hch@lst.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: s-XVh3kn9Vi8c2_S9D4wxUMbkILVJPtf X-Proofpoint-GUID: s-XVh3kn9Vi8c2_S9D4wxUMbkILVJPtf 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 mlxlogscore=620 suspectscore=0 phishscore=0 clxscore=1015 adultscore=0 bulkscore=0 impostorscore=0 malwarescore=0 mlxscore=0 priorityscore=1501 lowpriorityscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501080082 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250108_025801_481341_EEDDCBDE X-CRM114-Status: GOOD ( 12.44 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On 1/8/25 2:55 PM, Christoph Hellwig wrote: > Match the locking order used by the core block code by only freezing > the queue after taking the limits lock using the > queue_limits_commit_update_frozen helper and document the callers that > do not freeze the queue at all. > > Signed-off-by: Christoph Hellwig Looks good to me: Reviewed-by: Nilay Shroff