On Wed, 11 Jul 2018 14:02:20 -0700 Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote: > The previous comment misled me into thinking the barrier wasn't needed > at all. > > Signed-off-by: Matthew Wilcox <willy@xxxxxxxxxxxxx> > --- Reviewed-by: Greg Kurz <groug@xxxxxxxx> > net/9p/client.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/net/9p/client.c b/net/9p/client.c > index 18c5271910dc..999eceb8af98 100644 > --- a/net/9p/client.c > +++ b/net/9p/client.c > @@ -447,7 +447,7 @@ void p9_client_cb(struct p9_client *c, struct p9_req_t *req, int status) > > /* > * This barrier is needed to make sure any change made to req before > - * the other thread wakes up will indeed be seen by the waiting side. > + * the status change is visible to another thread > */ > smp_wmb(); > req->status = status;
