Re: [PATCH] sd: Micro-optimize READ / WRITE CDB encoding

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Bart,

> Only compute 'threshold' if .last_sector_bug has been set. Reduce
> the number of branches that has to be taken to check the starting
> LBA and transfer length alignment. Optimize the encoding of the
> READ(10), WRITE(10), READ(16), WRITE(16), READ(32) and WRITE(32)
> CDB encoding.

Please take a look at this. It missed 4.15 because I've been fighting a
hardware bug the last several weeks. However, I'd still like to get it
in shape for 4.16:

https://git.kernel.org/pub/scm/linux/kernel/git/mkp/linux.git/log/?h=scsi-work

Feel free to beat me to it.

-- 
Martin K. Petersen	Oracle Linux Engineering



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