Unmapped buffers: to be merged in several days

[Lev Serebryakov]

Hello, Lev.
You wrote 13 марта 2013 г., 15:02:28:

>>>  Will GEOM class, which needs to touch data (like raid3 or my off-tree
>>> raid5), benefit from conversion, compare to generic mechanism,
>>> provided for not-converted by your patch?
KB>> First, what do you mean by 'benefit'. Answer would obviously depend
KB>> on the criteria.
LS>  One more thought: it seems, that raid3/raid5 software implementations
LS> could benefit on reading when strict checks are disabled. Is it
LS> possible to map downstream BIOs, but use upstream ones unmapped?
 Where could I see documentation/examples how to:

  (a) manually map unmapped BIO
  (b) create unmapped BIO to pass downstream


-- 
// Black Lion AKA Lev Serebryakov <lev at FreeBSD.org>