Re: [PATCH] task_work: add a scheduling point in task_work_run()

[Mimi Zohar]

On Tue, 2012-08-21 at 23:32 +0200, Eric Dumazet wrote:
> 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.

Thanks for the clarification.

Mimi

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