wait_on_bit_timeout(9) wait for a bit to be cleared or a timeout elapses

SYNOPSIS

int wait_on_bit_timeout(unsigned long * word, int bit, unsigned mode, unsigned long timeout);

ARGUMENTS

word

the word being waited on, a kernel virtual address

bit

the bit of the word being waited on

mode

the task state to sleep in

timeout

timeout, in jiffies

DESCRIPTION

Use the standard hashed waitqueue table to wait for a bit to be cleared. This is similar to wait_on_bit, except also takes a timeout parameter.

Returned value will be zero if the bit was cleared before the timeout elapsed, or non-zero if the timeout elapsed or process received a signal and the mode permitted wakeup on that signal.

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