Re: [PATCH 01/10] block: make generic_make_request handle arbitrarily sized bios

[Christoph Hellwig]

This seems to lack support for QUEUE_FLAG_SG_GAPS to work around
the retarded PPR format in the NVMe driver.  I'm actually not
sure we have a way to reproduce them for BLOCK_PC requests, but I think
we should make sure to properly handle them.

Maybe Keith or Jens have a good reproducer for these.
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