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Fri, 30 Apr 2021 06:13:40 +0000 From: Justin He To: Al Viro CC: Linus Torvalds , Rasmus Villemoes , Christoph Hellwig , "Darrick J. Wong" , linux-fsdevel , linux-xfs , Dave Chinner , Linux Kernel Mailing List , Eric Sandeen , Andy Shevchenko Subject: RE: [GIT PULL] iomap: new code for 5.13-rc1 Thread-Topic: [GIT PULL] iomap: new code for 5.13-rc1 Thread-Index: AQHXO51Cqf1NQAhE30CBg6xQ5yY+C6rIx96AgAACK4CAAKr1AIAABfQAgAAAxgCAAAleAIAABo8AgACaL4CAAOfgAIAAqT2AgACvAzCAAAKiAIAALCYw Date: Fri, 30 Apr 2021 06:13:40 +0000 Message-ID: References: <20210428061706.GC5084@lst.de> <20210428064110.GA5883@lst.de> <1de23de2-12a9-2b13-3b86-9fe4102fdc0c@rasmusvillemoes.dk> <26d06c27-4778-bf75-e39a-3b02cd22d0e3@rasmusvillemoes.dk> In-Reply-To: Accept-Language: en-US, zh-CN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ts-tracking-id: 8B1AB2B3E2F57341AF14470D3E82197C.0 x-checkrecipientchecked: true Authentication-Results-Original: zeniv.linux.org.uk; dkim=none (message not signed) header.d=none;zeniv.linux.org.uk; dmarc=none action=none header.from=arm.com; x-originating-ip: [203.126.0.113] x-ms-publictraffictype: Email X-MS-Office365-Filtering-Correlation-Id: 7db5d18c-e976-4c8d-331f-08d90b9f1e7b x-ms-traffictypediagnostic: AM6PR08MB2951:|VI1PR08MB4414: X-Microsoft-Antispam-PRVS: x-checkrecipientrouted: true nodisclaimer: true x-ms-oob-tlc-oobclassifiers: OLM:6108;OLM:8882; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Apr 2021 06:13:48.7692 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7db5d18c-e976-4c8d-331f-08d90b9f1e7b X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM5EUR03FT019.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR08MB4414 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Hi Al Viro > -----Original Message----- > From: Al Viro On Behalf Of Al Viro > Sent: Friday, April 30, 2021 11:21 AM > To: Justin He > Cc: Linus Torvalds ; Rasmus Villemoes > ; Christoph Hellwig ; Darrick J. Wo= ng > ; linux-fsdevel ; linux= - > xfs ; Dave Chinner ; Linu= x > Kernel Mailing List ; Eric Sandeen > ; Andy Shevchenko > Subject: Re: [GIT PULL] iomap: new code for 5.13-rc1 > > On Fri, Apr 30, 2021 at 03:17:02AM +0000, Justin He wrote: > > > Is it a good idea to introduce a new d_path_nolock() for > file_dentry_name()? > > In d_path_nolock(), if it detects that there is conflicts with mount_lo= ck > > or rename_lock, then returned NULL as a name of that vfsmount? > > Just what does vfsmount have to do with rename_lock? And what's the poin= t > of the entire mess, anyway? Sorry, do you suggest not considering rename_lock/mount_lock at all for fil= e_dentry_name()? -- Cheers, Justin (Jia He) IMPORTANT NOTICE: The contents of this email and any attachments are confid= ential and may also be privileged. If you are not the intended recipient, p= lease notify the sender immediately and do not disclose the contents to any= other person, use it for any purpose, or store or copy the information in = any medium. Thank you.