Re: [PATCH v13 8/9] libata: do not suspend port if normal ODD is attached

2013-01-22 Thread Aaron Lu
On Mon, Jan 21, 2013 at 03:42:55PM -0500, Jeff Garzik wrote: > On 01/15/2013 04:21 AM, Aaron Lu wrote: > >For ODDs, the upper layer will poll for media change every few > >seconds, which will make it enter and leave suspend state very > >often. And as each suspend will also cause a hard/soft reset,

Re: [PATCH v13 8/9] libata: do not suspend port if normal ODD is attached

2013-01-21 Thread Jeff Garzik
On 01/15/2013 04:21 AM, Aaron Lu wrote: For ODDs, the upper layer will poll for media change every few seconds, which will make it enter and leave suspend state very often. And as each suspend will also cause a hard/soft reset, the gain of runtime suspend is very little while the ODD may malfunct

[PATCH v13 8/9] libata: do not suspend port if normal ODD is attached

2013-01-15 Thread Aaron Lu
For ODDs, the upper layer will poll for media change every few seconds, which will make it enter and leave suspend state very often. And as each suspend will also cause a hard/soft reset, the gain of runtime suspend is very little while the ODD may malfunction after constantly being reset. So the i