[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v12 2/3] x86/mem_sharing: reset a fork
On Thu, Mar 26, 2020 at 4:17 AM Jan Beulich <jbeulich@xxxxxxxx> wrote: > > On 23.03.2020 18:04, Tamas K Lengyel wrote: > > +static int mem_sharing_fork_reset(struct domain *d, struct domain *pd) > > +{ > > + int rc; > > + struct p2m_domain *p2m = p2m_get_hostp2m(d); > > + struct page_info *page, *tmp; > > + > > + spin_lock(&d->page_alloc_lock); > > + domain_pause(d); > > Why do you take the lock first? No particular reason - does the order matter? Tamas
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