From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phillip Susi Subject: Re: [PATCH v5 3/3] scsi: async sd resume Date: Mon, 10 Mar 2014 18:41:09 -0400 Message-ID: <531E3F85.9010304@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 , Dan Williams Cc: Tejun Heo , James Bottomley , Len Brown , linux-scsi , IDE/ATA development list , Todd Brandt List-Id: linux-scsi@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 03/10/2014 04:59 PM, Alan Stern wrote: > Why? The existing code doesn't have anything like that. The current sd code doesn't, but the libata code does use the AHCI staggered spinup feature flag as a hint to only spin up one drive at a time, so these patches together may defeat that behavior when resuming from suspend. That could be a problem on some systems. Then again, it may still follow the same code path in libata; I haven't looked at it closely enough lately to be sure. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCgAGBQJTHj+FAAoJEI5FoCIzSKrwYm0IAKZlralrzs8+5s7F4xouYrz8 samOep5+XxO8eVa6Cl6kqQvl02jYJNLUnabeBBTe8L5qws+ZFXnSkhFvAC5zd3LF a68hns996l9wum+XWDAeMb7K7/dKYJiDB+6w3foquA4fgoZsc2tYLEjvUUA9h9U6 +bfZpelLnqqRgFwKwBazqVRB4ZIBGcq1+DLnDTldOH6e4gJSnzoJU1MbLYiCa6KU tvg2XWDnp1ifhHcCGVIsdEdB1hxKKs3J+3CiXeg1Uc6LoWOfOpsfkvReNfIk4Ju9 zr2KEXGsIZwcmyx9i2Jni/I90oG3jNtVWlOT9Gvey2RW2fiMREesuHTt5KONc/U= =wrih -----END PGP SIGNATURE-----