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  8. Oct 04, 2017
    • Heiko Carstens's avatar
      s390: use generic rwsem implementation · 91a1fad7
      Heiko Carstens authored
      
      We never optimized our rwsem inline assemblies to make use of the new
      atomic instructions. The generic rwsem implementation implicitly makes
      use of the new instructions, since it implements the required rwsem
      primitives with atomic operations, which we did optimize.
      
      However even when compiling for old architectures the generic variant
      still generates better code. So it's time to simply remove our old
      code and switch to the generic implementation.
      
      Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
      Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
      91a1fad7
  9. Sep 29, 2017