wait_on_bit_action — wait for a bit to be cleared
int wait_on_bit_action ( | void * word, |
| int bit, | |
| wait_bit_action_f * action, | |
unsigned mode); |
wordthe word being waited on, a kernel virtual address
bitthe bit of the word being waited on
actionthe function used to sleep, which may take special actions
modethe task state to sleep in
Use the standard hashed waitqueue table to wait for a bit
to be cleared, and allow the waiting action to be specified.
This is like wait_on_bit but allows fine control of how the waiting
is done.
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.