Messages in this thread | | | Date | Tue, 06 Mar 2007 10:14:13 +0100 | From | Schmidt Michal <> | Subject | Re: Question: schedule() |
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Mockern wrote: > Hi, > > What does schedule() function do? I want to make my kthread preemptive.
It makes a scheduling decision, i.e. it assigns the CPU time to a suitable runnable task. If called with the current task's state set to TASK_(UN)INTERRUPTIBLE, it puts the task to sleep. Kernel threads are preemptible if the kernel is configured with CONFIG_PREEMPT. What exactly are you trying to do?
If you're new to Linux kernel programming, I suggest you read Robert Love's book "Linux Kernel Development". "Linux Device Drivers" by J.Corbet, A.Rubini and G.Kroah-Hartman will be very helpful too and it is available online: http://lwn.net/Kernel/LDD3/
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