1TRY_WAIT_FOR_COMPLET(9)          Driver Basics         TRY_WAIT_FOR_COMPLET(9)
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NAME

6       try_wait_for_completion - try to decrement a completion without
7       blocking
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SYNOPSIS

10       bool try_wait_for_completion(struct completion * x);
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ARGUMENTS

13       x
14           completion structure
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RETURNS

17       0 if a decrement cannot be done without blocking 1 if a decrement
18       succeeded.
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20       If a completion is being used as a counting completion, attempt to
21       decrement the counter without blocking. This enables us to avoid
22       waiting if the resource the completion is protecting is not available.
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25Kernel Hackers Manual 2.6.       November 2011         TRY_WAIT_FOR_COMPLET(9)
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