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FENCE_WAIT(9) | Device drivers infrastructure | FENCE_WAIT(9) |
NAME¶
fence_wait - sleep until the fence gets signaled
SYNOPSIS¶
signed long fence_wait(struct fence * fence, bool intr);
ARGUMENTS¶
fence
[in] the fence to wait on
intr
[in] if true, do an interruptible wait
DESCRIPTION¶
This function will return -ERESTARTSYS if interrupted by a signal, or 0 if the fence was signaled. Other error values may be returned on custom implementations.
Performs a synchronous wait on this fence. It is assumed the caller directly or indirectly holds a reference to the fence, otherwise the fence might be freed before return, resulting in undefined behavior.
COPYRIGHT¶
January 2017 | Kernel Hackers Manual 4.8. |