[PATCH] backport e55fdf11f3029bcd41b1b9547ad9db12c27eea76 (was Re: [Xen-ia64-devel] [PATCH 4/5] kexec: fix /proc/iomem_machine)

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

[IA64] backport Pick highest possible saved_max_pfn for crash_dump

backport Upstream Linux changeset e55fdf11f3029bcd41b1b9547ad9db12c27eea76

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>

diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -977,6 +977,11 @@
                if (!is_available_memory(md))
                        continue;
 
+#ifdef CONFIG_CRASH_DUMP
+               /* saved_max_pfn should ignore max_addr= command line arg */
+               if (saved_max_pfn < (efi_md_end(md) >> PAGE_SHIFT))
+                       saved_max_pfn = (efi_md_end(md) >> PAGE_SHIFT);
+#endif
                /*
                 * Round ends inward to granule boundaries
                 * Give trimmings to uncached allocator
@@ -1016,11 +1021,6 @@
                } else
                        ae = efi_md_end(md);
 
-#ifdef CONFIG_CRASH_DUMP
-               /* saved_max_pfn should ignore max_addr= command line arg */
-               if (saved_max_pfn < (ae >> PAGE_SHIFT))
-                       saved_max_pfn = (ae >> PAGE_SHIFT);
-#endif
                /* keep within max_addr= and min_addr= command line arg */
                as = max(as, min_addr);
                ae = min(ae, max_addr);


-- 
yamahata

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