TRY_WAIT_FOR_COMPLET

Section: Driver Basics (9)
Updated: February 2011
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NAME

try_wait_for_completion - try to decrement a completion without blocking  

SYNOPSIS

bool try_wait_for_completion(struct completion * x);
 

ARGUMENTS

x

completion structure
 

RETURNS

0 if a decrement cannot be done without blocking 1 if a decrement succeeded.

If a completion is being used as a counting completion, attempt to decrement the counter without blocking. This enables us to avoid waiting if the resource the completion is protecting is not available.  

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