Re: [PATCH 4/5] hv: kvp: use wrappers to propaigate state

From: Olaf Hering
Date: Mon Sep 21 2015 - 06:18:36 EST


On Sun, Sep 20, Greg KH wrote:

> On Tue, Sep 15, 2015 at 05:37:53PM -0700, K. Y. Srinivasan wrote:
> > @@ -122,8 +125,8 @@ static void kvp_timeout_func(struct work_struct *dummy)

> > + if (kvp_get_state() > HVUTIL_READY)
> > + kvp_set_state(HVUTIL_READY);

> And what if the state changed the line after this? Oops, your code is
> hosed. See, you need a lock, do this correctly.

KY, can this happen?

Olaf
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