[bug#29740] [PATCH] gnu: system: vm: Use loose cache for 9p file system.

[Leo Famulari]

On Sat, Dec 16, 2017 at 07:20:18PM +0000, Christopher Baines wrote:
> This improves the performance of the shared store for operations involving
> lots of files, e.g. searching through the store.
> 
> * gnu/system/vm.scm (mapping->file-system): Add cache=loose to options.

Okay!

> diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm
> index 6102d465b..c1305d3f9 100644
> --- a/gnu/system/vm.scm
> +++ b/gnu/system/vm.scm
> @@ -554,7 +554,7 @@ of the GNU system as described by OS."
>         (device (file-system->mount-tag source))
>         (type "9p")
>         (flags (if writable? '() '(read-only)))
> -       (options (string-append "trans=virtio"))
> +       (options "trans=virtio,cache=loose")

Was that string-append unnecessary in this context?

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