From: Andi Kleen <ak@suse.de>
Date: Sat, 25 Mar 2006 15:29:58 +0000 (+0100)
Subject: [PATCH] x86_64: Make pfn_valid work early in boot
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1f50249e940baa7133e0bdb32cd564bb3ba28456;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[PATCH] x86_64: Make pfn_valid work early in boot

It needs num_physpages, so initialize it early. It's later overwritten
again.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index 01e2de4d2540..ad3b7fc24a05 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -614,6 +614,7 @@ void __init setup_arch(char **cmdline_p)
 	 * we are rounding upwards:
 	 */
 	end_pfn = e820_end_of_ram();
+	num_physpages = end_pfn;		/* for pfn_valid */
 
 	check_efer();