linux-kernel - Re: [patch 4/8] nfsd: rename MAY

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Message-ID: <20080529204002.GC24018@fieldses.org>
Date:	Thu, 29 May 2008 16:40:02 -0400
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	hch@...radead.org, linux-fsdevel@...r.kernel.org,
	viro@...IV.linux.org.uk, linux-kernel@...r.kernel.org,
	neilb@...e.de
Subject: Re: [patch 4/8] nfsd: rename MAY_ flags

On Thu, May 29, 2008 at 04:02:39PM +0200, Miklos Szeredi wrote:
> > > From: Miklos Szeredi <mszeredi@...e.cz>
> > > 
> > > Rename nfsd specific MAY_* flags to NFSD_MAY_* to make it clear, that
> > > these are not used outside nfsd, and to avoid namespace conflicts with
> > > the VFS.
> > 
> > But they _are_ in the same namespace as the VFS ones.  This needs to be
> > sorted out by real by understanding what's going on here and either
> > separating this flags out and passing them in a separate argument, or
> > moving them to include/linux/fs.h so it's obvious for anyone adding new
> > flags that they must not collide.
> 
> Neither I think.  What's going on is that nfsd has a private set of
> permission flags, and a private permission checking function, which
> incidentally calls the vfs' permission checking function.
> 
> Does it hurt to share the three base MAY_ flags for this purpose?  I
> don't think it does, but I'm interested in the nfsd maintainers'
> opinions.

This isn't something I've ever had a reason to care about.  What are you
trying to fix exactly?

--b.
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