From: Tony Lindgren <tony@atomide.com>
Date: Tue, 19 Jan 2010 15:42:12 +0000 (+0100)
Subject: ARM: 5885/1: arm: Flush TLB entries in setup_mm_for_reboot()
X-Git-Tag: v2.6.33-rc5~14^2~2
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=ad3e6c0b1fad31282a8384903ed811671d840a9c;p=~emulex%2Finfiniband.git

ARM: 5885/1: arm: Flush TLB entries in setup_mm_for_reboot()

We need to do that if we tinker with the MMU entries.

This fixes the occasional bug with kexec where the new
fails to uncompress with "crc error". Most likely at
least kexec on v6 and v7 need this fix.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 1708da82da9..761ffede6a2 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1067,4 +1067,6 @@ void setup_mm_for_reboot(char mode)
 		pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1)));
 		flush_pmd_entry(pmd);
 	}
+
+	local_flush_tlb_all();
 }