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Subject: Re: [PATCH] powerpc/mm: Merge various PTE bits and accessors
	definitions
From: Michael Ellerman <michael@ellerman.id.au>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Date: Mon, 02 Mar 2009 18:38:01 +1100
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On Mon, 2009-03-02 at 17:22 +1100, Benjamin Herrenschmidt wrote:
> Now that they are almost identical, we can merge some of the definitions
> related to the PTE format into common files.

<snip>

> +/* Protection used for kernel text. We want the debuggers to be able to
> + * set breakpoints anywhere, so don't write protect the kernel text
> + * on platforms where such control is possible.
> + */
> +#if defined(CONFIG_KGDB) || defined(CONFIG_XMON) || defined(CONFIG_BDI_S=
WITCH) ||\
> +	defined(CONFIG_KPROBES)
> +#define PAGE_KERNEL_TEXT	PAGE_KERNEL_X
> +#else
> +#define PAGE_KERNEL_TEXT	PAGE_KERNEL_ROX
> +#endif

What about FTRACE? =E2=88=9ETRACE etc.

cheers

--=20
Michael Ellerman
OzLabs, IBM Australia Development Lab

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person

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