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Date: Fri, 22 Oct 2010 14:36:07 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Jeremy Fitzhardinge <jeremy@...p.org>,
Xen Devel <Xen-devel@...ts.xensource.com>
Cc: linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
Gianluca Guida <gianluca.guida@...rix.com>,
Yinghai Lu <yinghai@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
Peter Zijlstra <peterz@...radead.org>
Subject: Re: linux-next: manual merge of the xen tree with the tip tree
Hi Jeremy,
On Fri, 22 Oct 2010 14:03:35 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> Today's linux-next merge of the xen tree got a conflict in
> arch/x86/mm/init_32.c between commit
> 1d931264af0f10649b35afa8fbd2e169da51ac08 ("x86-32, memblock: Make
> add_highpages honor early reserved ranges") from the tip tree and commit
> 07147a06ac3b1b028124ea00ba44e69eb8ea7685 ("x86/32: honor reservations of
> high memory") from the xen tree.
>
> I have no idea how to fix this up, sorry, so I have used the xen tree
> from next-20101021 for today.
It occurred to me that the conflicts might be useful to you, so here they
are:
diff --cc arch/x86/mm/init_32.c
index 5d0a671,573bc7f..0000000
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@@ -423,28 -422,71 +423,78 @@@ static void __init add_one_highpage_ini
totalhigh_pages++;
}
-struct add_highpages_data {
- unsigned long start_pfn;
- unsigned long end_pfn;
-};
-
-static int __init add_highpages_work_fn(unsigned long start_pfn,
- unsigned long end_pfn, void *datax)
+void __init add_highpages_with_active_regions(int nid,
+ unsigned long start_pfn, unsigned long end_pfn)
{
++<<<<<<< HEAD
+ struct range *range;
+ int nr_range;
+ int i;
+
+ nr_range = __get_free_all_memory_range(&range, nid, start_pfn, end_pfn);
++=======
+ int node_pfn;
+ struct page *page;
+ phys_addr_t chunk_end, chunk_max;
+ unsigned long final_start_pfn, final_end_pfn;
+ struct add_highpages_data *data = (struct add_highpages_data *)datax;
++>>>>>>> xen
- final_start_pfn = max(start_pfn, data->start_pfn);
- final_end_pfn = min(end_pfn, data->end_pfn);
- if (final_start_pfn >= final_end_pfn)
- return 0;
+ for (i = 0; i < nr_range; i++) {
+ struct page *page;
+ int node_pfn;
++<<<<<<< HEAD
+ for (node_pfn = range[i].start; node_pfn < range[i].end;
+ node_pfn++) {
++=======
+ chunk_end = PFN_PHYS(final_start_pfn);
+ chunk_max = PFN_PHYS(final_end_pfn);
+
+ /*
+ * Check for reserved areas.
+ */
+ for (;;) {
+ phys_addr_t chunk_start;
+ chunk_start = early_res_next_free(chunk_end);
+
+ /*
+ * Reserved area. Just count high mem pages.
+ */
+ for (node_pfn = PFN_DOWN(chunk_end);
+ node_pfn < PFN_DOWN(chunk_start); node_pfn++) {
+ if (pfn_valid(node_pfn))
+ totalhigh_pages++;
+ }
+
+ if (chunk_start >= chunk_max)
+ break;
+
+ chunk_end = early_res_next_reserved(chunk_start, chunk_max);
+ for (node_pfn = PFN_DOWN(chunk_start);
+ node_pfn < PFN_DOWN(chunk_end); node_pfn++) {
++>>>>>>> xen
if (!pfn_valid(node_pfn))
continue;
page = pfn_to_page(node_pfn);
add_one_highpage_init(page);
}
}
-
- return 0;
-
}
++<<<<<<< HEAD
++=======
+
+ void __init add_highpages_with_active_regions(int nid, unsigned long start_pfn,
+ unsigned long end_pfn)
+ {
+ struct add_highpages_data data;
+
+ data.start_pfn = start_pfn;
+ data.end_pfn = end_pfn;
+ work_with_active_regions(nid, add_highpages_work_fn, &data);
+ }
+
++>>>>>>> xen
#else
static inline void permanent_kmaps_init(pgd_t *pgd_base)
{
diff --cc arch/x86/xen/mmu.c
index f72d18c,930986d..0000000
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@@ -56,7 -55,7 +56,11 @@@
#include <asm/e820.h>
#include <asm/linkage.h>
#include <asm/page.h>
++<<<<<<< HEAD
+#include <asm/init.h>
++=======
+ #include <asm/pat.h>
++>>>>>>> xen
#include <asm/xen/hypercall.h>
#include <asm/xen/hypervisor.h>
* Unmerged path include/linux/early_res.h
* Unmerged path kernel/early_res.c
--
Cheers,
Stephen Rothwell sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/
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