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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