From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Linton Subject: Re: [PATCH] st: Do not rewind for SG_IO Date: Mon, 3 Feb 2014 08:50:12 -0600 Message-ID: <52EFACA4.6060001@tributary.com> References: <1391157974-17512-1-git-send-email-hare@suse.de> <52EBD2BB.8020705@tributary.com> <52ECFF7B.7000401@suse.de> <60EE5D9C-A799-4C8D-8962-DB9D7C1C8414@kolumbus.fi> <52EE2F2D.1010300@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit Return-path: Received: from relay.ihostexchange.net ([66.46.182.55]:2893 "EHLO relay.ihostexchange.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752191AbaBCOuZ (ORCPT ); Mon, 3 Feb 2014 09:50:25 -0500 In-Reply-To: <52EE2F2D.1010300@suse.de> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Hannes Reinecke , =?windows-1252?Q?=22Kai_M=E4kisara_?= =?windows-1252?Q?=28Kolumbus=29=22?= Cc: James Bottomley , Kay Sievers , "linux-scsi@vger.kernel.org" -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 2/2/2014 5:42 AM, Hannes Reinecke wrote: > This is due to the strictly sequential design udev has. Essentially udev > spawns a worker for every device which gets created (= udev receives a > uevent for). The part I fail to see in this explanation is why the nst/st/st*a/st*m/etc handles are being treated as separate devices. They aren't. They are all the same physical tape device, so why are the nst devices being handled separately from the st ones? Maybe the problem is that you have to many "workers" for the tape device. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJS76ykAAoJEL5i86xrzcy7MKMH/0upLuOBOJWzdOfKYq0WmIvZ eIaaZG2vhckYeS2zZtim5uVFQDp5eTOirmjxfwSGzSTSAmNrQJwzZvBO/vA2/Kqk wZSKXp/ZGZhw11+6Kg8f1EArQQwT/i3R6BKglLELFvZVvNOUg3KCnd6nE/4k7ysh H3f6+6/Jb1wUA6h7a65BG7VBQlJ3HqVe01vYTrkb3eYW7IWfN0tX2FMdqYt2zon2 Yo6TRxhTE/dmqJhg8nLB+fA8rUwW7CYU/IX8nsKNn9lPaDdoJ6g22ozpJRrtEZZ+ lt/qL3VxfWu38z0GWhuKuOqY969bMlyaphY7bOgf7LY4osiC7OgarVoxSIgfP9E= =pIPt -----END PGP SIGNATURE-----