On Tue, 30 Apr 2019, Hillf Danton wrote: > A new local variable is introduced for accessing p2m entry with lock > protection. >
Same comment about html and space damage. But the change looks correct. > > Cc: Stefano Stabellini <[email protected]> > > Signed-off-by: Hillf Danton <[email protected]> > > --- > > > > --- a/arch/arm/xen/p2m.c 2019-04-30 12:32:05.363768200 +0800 > > +++ b/arch/arm/xen/p2m.c 2019-04-30 12:58:19.854334100 +0800 > > @@ -70,8 +70,9 @@ unsigned long __pfn_to_mfn(unsigned long > > entry = rb_entry(n, struct xen_p2m_entry, rbnode_phys); > > if (entry->pfn <= pfn && > > entry->pfn + entry->nr_pages > pfn) { > > + unsigned long mfn = entry->mfn + (pfn - entry->pfn); > > read_unlock_irqrestore(&p2m_lock, irqflags); > > - return entry->mfn + (pfn - entry->pfn); > > + return mfn; > > } > > if (pfn < entry->pfn) > > n = n->rb_left; > > -- > > > > >
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