[GHC] #14762: Foreign.Marshal.Pool functions use inefficient O(n) operations

[GHC]

#14762: Foreign.Marshal.Pool functions use inefficient O(n) operations
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        Reporter:  nh2               |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  libraries/base    |              Version:  8.2.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by bgamari):

 Sounds reasonable to me. Patches welcome!

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14762#comment:1>
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