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

NAME

       change_bit - Toggle a bit in memory

SYNOPSIS

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

ARGUMENTS

       nr     Bit to change

       addr   Address to start counting from

DESCRIPTION

        change_bit  is atomic and may not be reordered. It may be reordered on
       other architectures than x86. Note that nr may  be  almost  arbitrarily
       large;  this  function  is  not  restricted  to acting on a single-word
       quantity.