| WAIT_FOR_COMPLETION_(9) | Driver Basics | WAIT_FOR_COMPLETION_(9) |
NAME¶
wait_for_completion_io_timeout - waits for completion of a task (w/timeout)
SYNOPSIS¶
unsigned long __sched wait_for_completion_io_timeout(struct completion * x, unsigned long timeout);
ARGUMENTS¶
x
holds the state of this particular completion
timeout
timeout value in jiffies
DESCRIPTION¶
This waits for either a completion of a specific task to be signaled or for a specified timeout to expire. The timeout is in jiffies. It is not interruptible. The caller is accounted as waiting for IO.
RETURN¶
0 if timed out, and positive (at least 1, or number of jiffies left till timeout) if completed.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |