Re: [PATCH] [7/58] x86_64: various cleanups in NUMA scan node

From: David Rientjes
Date: Thu Jul 19 2007 - 17:02:08 EST


On Thu, 19 Jul 2007, Yinghai Lu wrote:

> > Index: linux/arch/x86_64/mm/srat.c
> > ===================================================================
> > --- linux.orig/arch/x86_64/mm/srat.c
> > +++ linux/arch/x86_64/mm/srat.c
> > /* maps to convert between proximity domain and logical node ID */
> > -static int pxm_to_node_map[MAX_PXM_DOMAINS]
> > +static int __cpuinitdata pxm_to_node_map[MAX_PXM_DOMAINS]
> > = { [0 ... MAX_PXM_DOMAINS - 1] = NID_INVAL
> > };
> > -static int node_to_pxm_map[MAX_NUMNODES]
> > +static int __cpuinitdata node_to_pxm_map[MAX_NUMNODES]
> > = { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
> >
> do we need to put __initdata just before =?
>

You mangled the quoting of this patch: the deltas above are actually in
drivers/acpi/numa.c and not arch/x86_64/mm/srat.c.

The placement of __cpuinitdata as shown above is permitted by gcc for a
section attribute. I've been corrected by akpm before when I've written
function declarations such as "static __init int foo()" in preference of
using the attribute syntax following all type qualifiers, but it is also
proper syntax. It's simply a matter of coding style, the semantics of the
construct are identical.

David
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