Re: Quota & XFS patch

Jan Kara (jack@suse.cz)
Wed, 27 Feb 2002 22:39:54 +0100


> On Wed, 27 Feb 2002, Jan Kara wrote:
>
> > Hello,
> >
> > I'm sending you Nathan's patch which implements things
> > in quotactl interface needed for XFS. If you can remember
> > the patch was already floating around some time
> > ago and was generally accepted... Please apply (it will
> > at least simplify patching of kernels for XFS).
>
> Why are you leaving some copy_from_user() in methods? Either the structures
> you are passing are fs-independent and everybody would be better off with
> having them copied in one place or they are not, and then API is completely
> broken.
Umm... I'm not sure I understand your objections - as I'm looking into the patch
all the copy_from_user() were moved from functions into sys_quotactl(). The
only thing you might not like is that XFS has extra structures and calls...
I don't like this too much either but XFS has different quota model so
creating common interface (structures) is a problem.

Thanks for comments
Honza

PS: Alan is not going to accept the patch anyway because he doesn't want further
interface differences between his and Linus's tree. But anyway discussion on this
topic is useful because I have similar patch for 2.5...

--
Jan Kara <jack@suse.cz>
SuSE CR Labs
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