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From: Alexander Viro <viro@math.psu.edu>
To: Christoph Hellwig <hch@infradead.org>
Cc: Mark Peloquin <peloquin@us.ibm.com>,
	torvalds@transmeta.com, linux-kernel@vger.kernel.org,
	evms-devel@lists.sourceforge.net
Subject: Re: [Evms-devel] Re: [PATCH] EVMS core 3/4: evms_ioctl.h
Date: Mon, 7 Oct 2002 13:50:00 -0400 (EDT)
Message-ID: <Pine.GSO.4.21.0210071340580.29030-100000@weyl.math.psu.edu> (raw)
In-Reply-To: <20021007183415.A22316@infradead.org>



On Mon, 7 Oct 2002, Christoph Hellwig wrote:

> I don't think that basing kernel internal interfaces on ioctl is
> a smart idea.  Just add another function pionter to your operations
> vector for every operation you want supported on volumes.

s/every/& generic/.  Other than that, seconded.  BTW, one of the pending
changes is taking the last more or less generic ioctl (HDIO_GETGEO) into
a separate method...

->ioctl() is for driver-specific crud; stuff that won't be used by
any generic application.  "Make a cuckoo jump out of drive and sing
'1000 bottles of beer'" is a valid ioctl.  "Get drive size" isn't.


  reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-10-07 16:43 Mark Peloquin
2002-10-07 17:34 ` Christoph Hellwig
2002-10-07 17:50   ` Alexander Viro [this message]
2002-10-07 18:40     ` Christoph Hellwig
  -- strict thread matches above, loose matches on Subject: below --
2002-10-04 14:44 Mark Peloquin

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