Messages in this thread | | | Subject | Re: | From | (Jonathan Corbet) | Date | Thu, 11 Dec 2003 18:29:03 -0700 |
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> 1) When I set a timer, it is added to a timer_list chain with add_timer(). > If the time is up and the scheduled function is called, should I remove the > timer_list struct from the chain via del_timer() ? Or is it removed > automatically ?
It will be removed automatically, just before your timer function is called.
> 2) How can a module safely removed if it has some running timers ? I have to > call del_timer() in cleanup_module() for each running timer ?
You cannot remove a module (safely) if there are outstanding timers. Use del_timer_sync() to get rid of them and ensure they aren't running on another processor.
Chapter 6 of Linux Device Drivers covers this topic; see:
http://www.xml.com/ldd/chapter/book/ch06.html
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