1WAIT_ON_BIT_TIMEOUT(9)           Driver Basics          WAIT_ON_BIT_TIMEOUT(9)
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NAME

6       wait_on_bit_timeout - wait for a bit to be cleared or a timeout elapses
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SYNOPSIS

9       int wait_on_bit_timeout(void * word, int bit, unsigned mode,
10                               unsigned long timeout);
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ARGUMENTS

13       word
14           the word being waited on, a kernel virtual address
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16       bit
17           the bit of the word being waited on
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19       mode
20           the task state to sleep in
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22       timeout
23           timeout, in jiffies
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DESCRIPTION

26       Use the standard hashed waitqueue table to wait for a bit to be
27       cleared. This is similar to wait_on_bit, except also takes a timeout
28       parameter.
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30       Returned value will be zero if the bit was cleared before the timeout
31       elapsed, or non-zero if the timeout elapsed or process received a
32       signal and the mode permitted wakeup on that signal.
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35Kernel Hackers Manual 3.10         June 2019            WAIT_ON_BIT_TIMEOUT(9)
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