Messages in this thread | | | Date | Fri, 13 Apr 2012 10:18:32 -0400 | From | Jeff Garzik <> | Subject | Re: [RFC] enable FUA support in libata |
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On 04/13/2012 04:11 AM, Zheng Liu wrote: > Hi Jeff and list, > > Recently I met a problem about FUA support of SATA disk. In my machine, > it has a SATA disk that supports FUA feature. But after system starts > up, it displays that the disk cannot support FUA from dmesg. > > I notice this commit (c3c013a2). It disables FUA support in all of SATA > disk. But the commit log is too simple to know why we should disable > FUA support in libata. Could you please explain it? Thank you.
FUA support in the block layer wanted speed and guarantees that early FUA drives were simply not providing.
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