linux-kernel - Re: [PATCH] sysfs: add filter function to groups

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Date:	Wed, 31 Oct 2007 13:19:47 +0100
From:	Cornelia Huck <cornelia.huck@...ibm.com>
To:	Stefan Richter <stefanr@...6.in-berlin.de>
Cc:	Greg KH <greg@...ah.com>,
	James Bottomley <James.Bottomley@...elEye.com>,
	Kay Sievers <kay.sievers@...y.org>,
	linux-scsi <linux-scsi@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] sysfs: add filter function to groups

On Wed, 31 Oct 2007 11:37:36 +0100,
Stefan Richter <stefanr@...6.in-berlin.de> wrote:

> > mask_out() would also imply that the common use case is to have all
> > attributes in the group created and that you need to take action to
> > have an attribute not created.
> 
> Here you have a point.  But James has a point too when he says:
> | We basically want to show capability by which file is present.

Currently, if you register an attribute group, all of the attributes
will show up. I find it more intuitive to have to block some attributes
explicitely if I want to have more control, but the original logic is
fine with me as well, if most people prefer that :)

> Anyway, /if/ the reverse logic is preferred, it shouldn't be called
> "mask_out()" but rather "is_masked()" or "is_hidden()" or the like.

Sure. is_masked() would be fine.

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