wait_on_bit_io — wait for a bit to be cleared
int wait_on_bit_io ( | unsigned long * word, |
| int bit, | |
unsigned mode); |
wordthe word being waited on, a kernel virtual address
bitthe bit of the word being waited on
modethe task state to sleep in
Use the standard hashed waitqueue table to wait for a bit
to be cleared. This is similar to wait_on_bit, but calls
io_schedule instead of schedule for the actual waiting.
Returned value will be zero if the bit was cleared, or non-zero if the process received a signal and the mode permitted wakeup on that signal.