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FENCE_WAIT_ANY_TIMEO(9) Device drivers infrastructure FENCE_WAIT_ANY_TIMEO(9)

NAME

fence_wait_any_timeout - sleep until any fence gets signaled or until timeout elapses

SYNOPSIS

signed long fence_wait_any_timeout(struct fence ** fences, uint32_t count, bool intr, signed long timeout);

ARGUMENTS

fences

[in] array of fences to wait on

count

[in] number of fences to wait on

intr

[in] if true, do an interruptible wait

timeout

[in] timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT

DESCRIPTION

Returns -EINVAL on custom fence wait implementation, -ERESTARTSYS if interrupted, 0 if the wait timed out, or the remaining timeout in jiffies on success.

Synchronous waits for the first fence in the array to be signaled. The caller needs to hold a reference to all fences in the array, otherwise a fence might be freed before return, resulting in undefined behavior.

COPYRIGHT

January 2017 Kernel Hackers Manual 4.8.