From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phillip Susi Subject: Re: [PATCH 1/3] sd: don't bother spinning up disks on resume Date: Sat, 16 Nov 2013 09:52:02 -0500 Message-ID: <52878692.5060300@ubuntu.com> References: <527AF287.7020700@ubuntu.com> <927e15641f27b46f206f8ae8110201c8fd77b7e1.1383789225.git.psusi@ubuntu.com> <527BDA11.6060603@interlog.com> <52870134.6060707@start.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <52870134.6060707@start.ca> Sender: linux-scsi-owner@vger.kernel.org To: Mark Lord , dgilbert@interlog.com, todd.e.brandt@linux.intel.com, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org Cc: tj@kernel.org, JBottomley@parallels.com List-Id: linux-ide@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 11/16/2013 12:23 AM, Mark Lord wrote: > Ditto for many SATA disks with "power up in standby" enabled. Ditto for my previous response; the kernel ( in this case the libata layer ) notices this and takes care of starting it. The third patch I posted suppresses this startup at resume time so that it will be done on access instead. I currently have two disks with PuiS enabled that no longer have to spin up and down again every time I resume from suspend, but wake up nicely when I mount them. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCgAGBQJSh4aPAAoJEJrBOlT6nu75bV0IAImEyIJlIF6O69mqLS3A6z/r xtUQlxg5gfE91PteNdtNYd9v54uwCw2uldSAGOEm4DR7LOErVu54J+6rVZKFRF0L ocmE2VEKhzNTA21pt5rCPDsQ9BHJ7ljWXbGTUC7zFN4VCYTEkPVuO5Owedjd9sb8 +BUHCD9+au7CRf5SLU4qSoqT8DNUPREv70WL1Ze8LhQt9R+APBclyeXHBYc+Hgpd Idzp/EFt+SPRGrJL+XyC6/F0Mz3kLRD/2Ij0kRSux1E5DNG1SQTq+FdqUIa2sTDf volJRiUS3/rtNr/2c4F9awQNbsCZRceTIq71PA3dvgxM21sjpXpLUe2A65u9gNQ= =jhXC -----END PGP SIGNATURE-----