Messages in this thread | | | Date | Wed, 29 Jun 2016 09:34:04 -0600 | From | "Jan Beulich" <> | Subject | Re: [Xen-devel] [PATCH] x86/xen: Use DIV_ROUND_UP |
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>>> On 29.06.16 at 17:00, <amitoj1606@gmail.com> wrote: > --- a/arch/x86/xen/enlighten.c > +++ b/arch/x86/xen/enlighten.c > @@ -591,7 +591,7 @@ static void xen_load_gdt(const struct desc_ptr *dtr) > { > unsigned long va = dtr->address; > unsigned int size = dtr->size + 1; > - unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE; > + unsigned pages = DIV_ROUND_UP(size, PAGE_SIZE); > unsigned long frames[pages]; > int f; > > @@ -640,7 +640,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr) > { > unsigned long va = dtr->address; > unsigned int size = dtr->size + 1; > - unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE; > + unsigned pages = DIV_ROUND_UP(size, PAGE_SIZE); > unsigned long frames[pages]; > int f; >
Perhaps even more readable would be PFN_DOWN()?
Jan
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