Matthew Dharm writes:
> Spinlocks can give me mutual exclusion, but what I need to do is sleep
> until there is something in the queue to process. This is a textbook
> application of semaphores -- or is the kernel implementation of semaphores
> not so textbook?
Use wait queues. They have both non-interruptible and interruptible
versions. The interruptible version uses TASK_INTERRUPTIBLE, which
won't be counted as a running process.
_____
|_____| ------------------------------------------------- ---+---+-
| | Russell King rmk@arm.linux.org.uk --- ---
| | | | http://www.arm.linux.org.uk/~rmk/aboutme.html / / |
| +-+-+ --- -+-
/ | THE developer of ARM Linux |+| /|\
/ | | | --- |
+-+-+ ------------------------------------------------- /\\\ |
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sat Jun 03 2000 - 05:31:19 EDT