Re: next bio iters break discard?

[Martin K. Petersen]

>>>>> "Kent" == Kent Overstreet <kmo@xxxxxxxxxxxxx> writes:

>> IOW, DISCARD, WRITE SAME and the impending COPY requests do not have
>> a 1:1 mapping between the block range worked on and the size of any
>> bvecs attached. Your recent changes must have changed the way we
>> handled that in the past.

Kent> Yeah - but with WRITE_SAME bios, wouldn't we at least have to
Kent> check that they're writing the same data to merge them?

We do. Check blk_write_same_mergeable().

-- 
Martin K. Petersen	Oracle Linux Engineering
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