linux-kernel - Re: [PATCH v4] fuse: Allow fallocate(FALLOC_FL_ZERO

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Date:   Tue, 15 Jun 2021 11:33:57 +0100
From:   "Richard W.M. Jones" <rjones@...hat.com>
To:     Miklos Szeredi <miklos@...redi.hu>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        eblake@...hat.com, libguestfs@...hat.com,
        Shachar Sharon <synarete@...il.com>
Subject: Re: [PATCH v4] fuse: Allow fallocate(FALLOC_FL_ZERO_RANGE)

On Tue, May 18, 2021 at 03:56:25PM +0200, Miklos Szeredi wrote:
> On Wed, 12 May 2021 at 18:19, Richard W.M. Jones <rjones@...hat.com> wrote:
> >
> > The current fuse module filters out fallocate(FALLOC_FL_ZERO_RANGE)
> > returning -EOPNOTSUPP.  libnbd's nbdfuse would like to translate
> > FALLOC_FL_ZERO_RANGE requests into the NBD command
> > NBD_CMD_WRITE_ZEROES which allows NBD servers that support it to do
> > zeroing efficiently.
> >
> > This commit treats this flag exactly like FALLOC_FL_PUNCH_HOLE.
> 
> Thanks, applied.

Hi Miklos, did this patch get forgotten?

Rich.

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