[PATCH 4/4] nvme: support ranged discard requests

Christoph Hellwig hch at lst.de
Wed Feb 8 05:36:32 PST 2017


On Wed, Feb 08, 2017 at 01:32:22PM +0000, Andrey Kuzmin wrote:
> On Wed, Feb 8, 2017, 16:14 Christoph Hellwig <hch at lst.de> wrote:
> 
> > NVMe supports up to 255 ranges per DSM command,
> 
> 
> 256 per spec, with number of ranges being zero-based.

You're right.  I'll do another round of the patch.  That beeing
said in my tests I never even managed to get three-digit ranges
anyway with any workload.



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