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Subject: Re: [PATCH 2/3] powerpc/mm: Rename find_linux_pte_or_hugepte
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>, paulus@samba.org,
 mpe@ellerman.id.au, Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Date: Tue, 16 May 2017 21:22:52 +1000
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On Tue, 2017-05-16 at 14:56 +0530, Aneesh Kumar K.V wrote:
> +static inline pte_t *find_linux_pte(pgd_t *pgdir, unsigned long ea,
> +                                   bool *is_thp, unsigned *hshift)
> +{
> +       VM_WARN((!arch_irqs_disabled() && !__hard_irqs_disabled()) ,
> +               "%s called with irq enabled\n", __func__);
> +       return __find_linux_pte(pgdir, ea, is_thp, hshift);
> +}
> +

When is arch_irqs_disabled() not sufficient ?

Cheers,
Ben.