From: Al Viro <viro@zeniv.linux.org.uk>
To: Christian Brauner <brauner@kernel.org>
Cc: Chuck Lever <cel@kernel.org>,
akpm@linux-foundation.org, hughd@google.com, jlayton@redhat.com,
Tavian Barnes <tavianator@tavianator.com>,
Chuck Lever <chuck.lever@oracle.com>,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH RFC] libfs: getdents() should return 0 after reaching EOD
Date: Tue, 14 Nov 2023 17:57:14 +0000 [thread overview]
Message-ID: <20231114175714.GT1957730@ZenIV> (raw)
In-Reply-To: <20231114-begleichen-miniatur-3c3a02862c4c@brauner>
On Tue, Nov 14, 2023 at 06:29:15PM +0100, Christian Brauner wrote:
> I think it's usually best practice to only modify the file->private_data
> pointer during f_op->open and f_op->close but not override
> file->private_data once the file is visible to other threads. I think
> here it might not matter because access to file->private_data is
> serialized on f_pos_lock and it's not used by anything else.
That is entirely up to filesystem. Warning that use of that library
helper means that you can't use your ->d_fsdata for anything else - sure,
but that's it.
next prev parent reply other threads:[~2023-11-14 17:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-14 15:49 Chuck Lever
2023-11-14 15:56 ` Matthew Wilcox
2023-11-14 16:00 ` Chuck Lever
2023-11-14 17:29 ` Christian Brauner
2023-11-14 17:57 ` Al Viro [this message]
2023-11-15 20:25 ` Christian Brauner
2023-11-14 18:13 ` Chuck Lever
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