linux-kernel - Re: [PATCH] netfs: Fix early read unlock of page with EOF in middle

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Message-ID: <941467.1766243830@warthog.procyon.org.uk>
Date: Sat, 20 Dec 2025 15:17:10 +0000
From: David Howells <dhowells@...hat.com>
To: Christian Schoenebeck <linux_oss@...debyte.com>
Cc: dhowells@...hat.com, Christian Brauner <brauner@...nel.org>,
    Dominique Martinet <asmadeus@...ewreck.org>,
    Eric Van Hensbergen <ericvh@...nel.org>,
    Latchesar Ionkov <lucho@...kov.net>,
    Chris Arges <carges@...udflare.com>,
    Matthew Wilcox <willy@...radead.org>,
    Steve French <sfrench@...ba.org>, v9fs@...ts.linux.dev,
    netfs@...ts.linux.dev, linux-fsdevel@...r.kernel.org,
    linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netfs: Fix early read unlock of page with EOF in middle

Christian Schoenebeck <linux_oss@...debyte.com> wrote:

> What about write_collect.c side, is it safe as is?

That's a good question - but it should be safe since it doesn't modify the
content of the page and doesn't typically write beyond the EOF (though it
might write a block that spans the EOF marker to the cache).

David