1. 13 Aug, 2010 1 commit
    • Tony Luck's avatar
      [IA64] Fix 64-bit atomic routines to return "long" · 01d69a82
      Tony Luck authored
      These have been broken (returning "int") since the dawn of
      time. But there were no users that needed the whole value
      until commit
       424acaae
       rwsem: wake queued readers when writer blocks on active read lock
      
      made this change:
      
      -           (rwsem_atomic_update(0, sem) & RWSEM_ACTIVE_MASK))
      -               /* Someone grabbed the sem already */
      +           rwsem_atomic_update(0, sem) < RWSEM_WAITING_BIAS)
      +               /* Someone grabbed the sem for write already */
      
      RWSEM_ACTIVE_MASK is 0xffffffffL, so the old code only looked
      at the low order 32-bits. The new code needs to see all 64 bits.
      Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
      01d69a82
  2. 12 Aug, 2010 39 commits