From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phillip Susi Subject: Re: REQ_PM vs REQ_TYPE_PM_RESUME Date: Tue, 07 Jan 2014 10:43:28 -0500 Message-ID: <52CC20A0.7060606@ubuntu.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-ide-owner@vger.kernel.org To: Alan Stern , Aaron Lu Cc: Sujit Reddy Thumma , todd.e.brandt@linux.intel.com, tj@kernel.org, JBottomley@parallels.com, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, Linux-pm mailing list , "Rafael J. Wysocki" List-Id: linux-pm@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 1/7/2014 10:25 AM, Alan Stern wrote: > This doesn't seem like a good idea. The way to speed up resumes is > to allow sd's resume routine to return while the disk is still > spinning up (i.e., make the spin-up asynchronous). There already > have been patches submitted to do this; I don't know what happened > to them. Sure, if that is your *only* goal. I also want the disk to not spin up *at all* if possible. There's no sense spinning up all of your disks every time you resume when you very rarely access some of them. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (MingW32) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSzCCgAAoJEI5FoCIzSKrwkMAH/3Fs/1tdkCUNtj32PjvD/C2O qgJwkXKtJmThL9+8NK5lNLxWt+buJ9HBozoeKs2AkBIsRpxdXZb6FnutQHhOSIBQ vqgwKoGvKQUc7bj0sg2WUVckYkZcl2hs54PIZgaAj8VwcJZE7XTNo+BeGlyslyi+ isG+BvGInBkhJ7BsR0nC05Sytrb6F6xYkOkV5hn2PjvPNhxpw9dKlVLGfO9qNFcJ irazJwVQ2k49y7IGHS+K0NLGv45pBEPRcirwTaxfH0IIVCmDPeQk86SmpmeS+TSO o3tFgUC7JQjeH2yg0YXkIEGZGGycv57H7Gf+hAOL9mOOD3CD0D4TagbMZP2SOIU= =gM81 -----END PGP SIGNATURE-----