On Wed, Mar 07, 2007 at 11:49:15PM +0100, Pavel Machek wrote:
> Hi!
>
> > o virt_to_page() call should be used on kernel linear addresses and not
> > on kernel text and data addresses. Swsusp code uses it on kernel data
> > (statically allocated swsusp_header).
> >
> > o Allocate swsusp_header dynamically so that virt_to_page() can be used
> > safely.
> >
> > o I am changing this because in next few patches, __pa() on x86_64 will
> > no longer support kernel text and data addresses and hibernation breaks.
> >
> > Signed-off-by: Vivek Goyal <[EMAIL PROTECTED]>
>
> > +static int swsusp_header_init(void)
> > +{
> > + swsusp_header = (struct swsusp_header*) __get_free_page(GFP_KERNEL);
> > + if (!swsusp_header)
> > + panic("Could not allocate memory for swsusp_header\n");
> > + return 0;
> > +}
> > +
> > +core_initcall(swsusp_header_init);
>
> I do not like the panic, but I guess it is okay as we are running
> during boot? (Could you add a comment?) Otherwise ok.
>
Hi Pavel,
Yes, it is an initcall and this memory page will be allocated during
boot time. Not very sure what comment to put there. To me it seems
pretty obivious with "core_initcall".
Thanks
Vivek
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