linux-kernel - Re: [PATCH v5 0/3] FUSE: Implement atomic lookup + open/create

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Message-ID: <CAJfpegvpdms4QpecBWyu88mpKRcofDFLVtRQbcRs+4RiNoM6Ug@mail.gmail.com>
Date:   Thu, 19 May 2022 15:13:38 +0200
From:   Miklos Szeredi <miklos@...redi.hu>
To:     Dharmendra Singh <dharamhans87@...il.com>
Cc:     Vivek Goyal <vgoyal@...hat.com>, linux-fsdevel@...r.kernel.org,
        fuse-devel <fuse-devel@...ts.sourceforge.net>,
        linux-kernel@...r.kernel.org, Bernd Schubert <bschubert@....com>
Subject: Re: [PATCH v5 0/3] FUSE: Implement atomic lookup + open/create

On Thu, 19 May 2022 at 11:39, Miklos Szeredi <miklos@...redi.hu> wrote:

> Apparently in all of these cases we are doing at least one request, so
> it would make sense to make them uniform:
>
> [not cached]
>    ->atomic_open()
>       CREATE_EXT
>
> [cached]
>    ->d_revalidate()
>       return 0

Note to self:  invalidating a valid positive dentry would break things.

Revalidation would need to be moved into ->atomic_open(), which is a
bigger surgery.  Oh well...

Thanks,
Miklos