On Tue, 2012-08-21 at 16:37 -0400, Mimi Zohar wrote:

> We're here, because fput() called schedule_work() to delay the last
> fput().  The execution needs to take place before the syscall returns to
> userspace.  Need to read __schedule()...  Do you know if cond_resched()
> can guarantee that it will be executed before the return to userspace? 

Some clarifications : 

- fput() does not call schedule_work() in this case but task_work_add()

- cond_resched() wont return to userspace.


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