Martin K. Petersen wrote:
"Jens" == Jens Axboe <jens.axboe@xxxxxxxxxx> writes:
Jens> Uhm, but it IS "a blatant layering violation", it's doing things
Jens> from the wrong side up :-)
I also disagree with mucking with the elevator directly in sd.c.
The whole point of my I/O hints work is to expose the I/O topology in
a generic fashion so that upper layers can take advantage of them.
I'll post a new batch of those patches shortly...
One other thought - is there a way to give non-rotational devices also
some indication of latency? (FLASH is slower than enterprise SSD is
slower than DRAM ramdisk for example)?
ric
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