linux-kernel - Re: [PATCH V2 2/2] hfsplus: Add an ioctl to bless files

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Date:	Mon, 6 Feb 2012 19:32:56 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 2/2] hfsplus: Add an ioctl to bless files

On Mon, Feb 06, 2012 at 12:49:43PM -0500, Christoph Hellwig wrote:
> On Mon, Feb 06, 2012 at 05:45:49PM +0000, Matthew Garrett wrote:
> > On Mon, Feb 06, 2012 at 12:35:53PM -0500, Christoph Hellwig wrote:
> > > +#define HFSPLUS_IOC_BLESS              _IO('f', 0x20)
> > > 
> > > I'd probably move this to fs.h and follow the numbering there,
> > > otherwise we are bound to run into conflicts.
> > 
> > Ok. Any problem with leaving something filesystem specific in there?
> 
> Leaving it in hfsplus sounds fine, but I'd avoid using 'f' then just to
> reduce the chance for overlap.

Using the same range but putting it in a different file seems like a 
good way to have someone miss it. I added the range to ioctl-list.txt so 
in theory nobody should step on it - do you think that's likely to be 
inadequate?

-- 
Matthew Garrett | mjg59@...f.ucam.org
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