Provided by: linux-doc-2.6.15_2.6.15-23.39_all bug


       set_bit - Atomically set a bit in memory


       void set_bit  (int nr, volatile unsigned long * addr);


       nr     the bit to set

       addr   the address to start counting from


       This  function is atomic and may not be reordered. See __set_bit if you
       do not require the atomic guarantees.


       there are no guarantees that this function will not be reordered on non
       x86  architectures, so if you are writting portable code, make sure not
       to rely on its reordering guarantees.

       Note that nr may be almost arbitrarily  large;  this  function  is  not
       restricted to acting on a single-word quantity.