Re: [PATCH v2 seccomp 3/6] seccomp/cache: Add "emulator" to check if filter is arg-dependent

From: YiFei Zhu
Date: Fri Sep 25 2020 - 12:45:47 EST


On Thu, Sep 24, 2020 at 10:04 PM YiFei Zhu <zhuyifei1999@xxxxxxxxx> wrote:
> > Why do the prepare here instead of during attach? (And note that it
> > should not be written to fail.)
>
> Right.

During attach a spinlock (current->sighand->siglock) is held. Do we
really want to put the emulator in the "atomic section"?

YiFei Zhu