On 15-10-16 08:54 AM, Tejun Heo wrote:
Hello, Mark.
On Fri, Oct 16, 2015 at 08:42:02AM -0400, Mark Lord wrote:
Applied to libata/for-4.4. Let's see what happens.
Ugh. Yet another revert to include in my own builds, I guess.
Hmmm... what other patches are you reverting?
For libata, other than this one, I only disable SATA LPM.
But something is wrong with the Seagate 8TB drives in
the latest kernels, so I'll have to figure that one out too
at some point. The drives keep dropping offline, requiring a
system power cycle to recover. Cause unknown. Nothing in S.M.A.R.T.
eSATA is used for permanent storage expansion with port-multipliers,
and having to stop command queuing frequently for useless polling
is gonna be a performance drain.
What would poll it regularly?
I though your own earlier post suggested something there,
but I no longer have it to re-read.
I'm expecting that "removable" will imply different elevator
scheduling and more frequent journal flushing etc.
But perhaps it's a bit unfair to just presume that just yet,
so you have my apologies!
But I'm still reverting/disabling this one locally.
Cheers
Mark
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