linux-kernel - Re: [PATCH] fs/netfs/write_collect: call `invalidate

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Message-ID: <CAKPOu+8XzPixswU9srF=DK=MkE9tUhHtVxAwwA-xq=NAo9Ljjw@mail.gmail.com>
Date: Fri, 14 Mar 2025 08:35:33 +0100
From: Max Kellermann <max.kellermann@...os.com>
To: dhowells@...hat.com, netfs@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fs/netfs/write_collect: call `invalidate_cache` only if implemented

On Fri, Feb 28, 2025 at 1:36 PM Max Kellermann <max.kellermann@...os.com> wrote:
>
> Many filesystems such as NFS and Ceph do not implement the
> `invalidate_cache` method.  On those filesystems, if writing to the
> cache (`NETFS_WRITE_TO_CACHE`) fails for some reason, the kernel
> crashes like this:

David, it's been more than two weeks - please don't forget this patch.
It's yet another netfs crash bug fix.