__CHANGE_BIT(9) Basic C Library Functions __CHANGE_BIT(9)NAME__change_bit - Toggle a bit in memory
void __change_bit(int nr, volatile unsigned long * addr);
the bit to change
the address to start counting from
Unlike change_bit, this function is non-atomic and may be reordered. If
it's called on the same region of memory simultaneously, the effect may
be that only one operation succeeds.
COPYRIGHTKernel Hackers Manual 3.8. June 2014 __CHANGE_BIT(9)