[GHC] #9696: readRawBufferPtr and writeRawBufferPtr allocate memory

[GHC]

#9696: readRawBufferPtr and writeRawBufferPtr allocate memory
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        Reporter:  mergeconflict     |                Owner:
            Type:  bug               |               Status:  new
        Priority:  low               |            Milestone:
       Component:  Compiler          |              Version:  7.8.3
      Resolution:                    |             Keywords:  newcomer
Operating System:  Unknown/Multiple  |         Architecture:  x86_64
 Type of failure:  Runtime           |  (amd64)
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by mjmrotek):

 Replying to [comment:3 thomie]:
 > > Also, there is a safe foreign import of `rtsSupportsBoundThreads` in
 GHC.IO.FD (and also some other module(s) in base), which seems quite
 unnecessary considering `rtsSupportsBoundThreads` simply returns a
 constant.
 >
 > For a newcomer, to get acquainted with the patch submission process.

 I did this part in https://phabricator.haskell.org/D1964 , grepping
 through HEAD didn't show any more safe imports of
 `rtsSupportsBoundThreads`. I didn't touch anything related to
 `readRawBufferPtr`, `writeRawBufferPtr`, or `throwErrnoIfRetryMayBlock`,
 though.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9696#comment:5>
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