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SubjectRe: [PATCH v7 07/31] netfs: Make a netfs helper module
Hi David,

On Fri, Apr 23, 2021 at 3:31 PM David Howells <> wrote:
> Make a netfs helper module to manage read request segmentation, caching
> support and transparent huge page support on behalf of a network
> filesystem.
> Signed-off-by: David Howells <>

Thanks for your patch, which is now commit 3ca236440126f75c ("mm:
Implement readahead_control pageset expansion") upstream.

> --- /dev/null
> +++ b/fs/netfs/Kconfig
> @@ -0,0 +1,8 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +
> + tristate "Support for network filesystem high-level I/O"
> + help
> + This option enables support for network filesystems, including
> + helpers for high-level buffered I/O, abstracting out read
> + segmentation, local caching and transparent huge page support.

TBH, this help text didn't give me any clue on whether I want to enable
this config option or not. Do I need it for e.g. NFS, which is a
network filesystem?

I see later patches make AFS and FSCACHE select NETFS_SUPPORT. If this
is just a library of functions, to be selected by its users, then please
make the symbol invisible.




Geert Uytterhoeven -- There's lots of Linux beyond ia32 --

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

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