From: Christian Brauner <brauner@kernel.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: Jan Kara <jack@suse.cz>, Aleksa Sarai <cyphar@cyphar.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Chuck Lever <chuck.lever@oracle.com>,
Jeff Layton <jlayton@kernel.org>,
Amir Goldstein <amir73il@gmail.com>,
Alexander Aring <alex.aring@gmail.com>,
linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-api@vger.kernel.org
Subject: Re: [PATCH RFC v2] fhandle: expose u64 mount id to name_to_handle_at(2)
Date: Fri, 31 May 2024 12:28:44 +0200 [thread overview]
Message-ID: <20240531-beizeiten-mythisch-667a70d59a82@brauner> (raw)
In-Reply-To: <ZlmG1Rss6gTgbSVT@infradead.org>
> I don't understand what you mean. If we hand out file handles with
I don't think adding another highly privileged interface in opposition
to exposing the mount id is warranted. The new mount id exposure patch
is a performance improvement for existing use-cases to let userspace
avoid additional system calls. Because as Aleksa showed in the commit
message there's ways to make this race-free right now. The patch hasn't
gained any Acks from Amir or Jeff so it's obviously not going to get
merged. So really, I don't want another interface that goes from
arbitrary superblock to file hidden behind yet another global capability
check.
next prev parent reply other threads:[~2024-05-31 10:28 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-23 20:57 [PATCH RFC v2] fhandle: expose u64 mount id to name_to_handle_at(2) Aleksa Sarai
2024-05-24 4:58 ` Amir Goldstein
2024-05-26 9:25 ` Christoph Hellwig
2024-05-26 19:01 ` Aleksa Sarai
2024-05-27 11:47 ` Christoph Hellwig
2024-05-27 12:29 ` Christian Brauner
2024-05-27 13:17 ` Christian Brauner
2024-05-27 15:47 ` Trond Myklebust
2024-05-28 7:05 ` Christian Brauner
2024-05-27 16:18 ` Christoph Hellwig
2024-05-27 13:34 ` Jan Kara
2024-05-27 16:24 ` Christoph Hellwig
2024-05-28 8:20 ` Christian Brauner
2024-05-28 8:28 ` Christoph Hellwig
2024-05-28 9:17 ` Christian Brauner
2024-05-28 10:55 ` Christoph Hellwig
2024-05-28 12:04 ` Christian Brauner
2024-05-28 13:22 ` Christoph Hellwig
2024-05-28 13:28 ` Miklos Szeredi
2024-05-29 6:34 ` Christoph Hellwig
2024-06-01 8:12 ` Aleksa Sarai
2024-06-03 10:30 ` Jan Kara
2024-06-04 5:22 ` Christoph Hellwig
2024-05-29 7:40 ` Christian Brauner
2024-05-31 8:14 ` Christoph Hellwig
2024-05-31 10:28 ` Christian Brauner [this message]
2024-05-26 22:32 ` Trond Myklebust
2024-05-27 11:49 ` hch
2024-05-27 15:38 ` Trond Myklebust
2024-05-27 16:29 ` hch
2024-05-28 7:12 ` Christian Brauner
2024-05-28 7:15 ` hch
2024-05-28 10:11 ` Jan Kara
2024-05-28 10:56 ` hch
2024-05-28 23:25 ` Dave Chinner
2024-05-29 6:24 ` hch
2024-05-29 7:23 ` Amir Goldstein
2024-05-27 12:22 ` Christian Brauner
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