Re: [PATCH 04/21] procfs: drop vmtruncate

[Marco Stornelli]

Il 24/10/2012 17:12, Christoph Hellwig ha scritto:
> On Sat, Oct 20, 2012 at 02:17:33PM +0200, Marco Stornelli wrote:
> > Removed vmtruncate
> >
> > Signed-off-by: Marco Stornelli <marco.stornelli@xxxxxxxxx>
>
> As Al pointed out we probably shouldn't even allow truncate on procfs.
> Can look into refusing it instead, please?

Mmmm...for example the command "truncate --size=100 config.gz" is a nop, 
so it seems to me it makes no sense to support the size change, but I 
don't know if there are other use cases. However, should we return EPERM 
in case of size change checking it before inode_change_ok()?

Marco
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