From: Bruce Allan <bruce.w.allan@intel.com>
Date: Tue, 30 Sep 2008 03:19:22 +0000 (-0700)
Subject: x86: export set_memory_ro and set_memory_rw
X-Git-Tag: archive/raspbian/4.9.13-1+rpi1~10^2~26231^2^9
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=a03352d2c1dcb00970801fb8b800a39acd3103d9;p=linux-4.9.git

x86: export set_memory_ro and set_memory_rw

Export set_memory_ro() and set_memory_rw() calls for use by drivers that need
to have more debug information about who might be writing to memory space.
this was initially developed for use while debugging a memory corruption
problem with e1000e.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 43e2f8483e4f..62c1eefcce05 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -906,11 +906,13 @@ int set_memory_ro(unsigned long addr, int numpages)
 {
 	return change_page_attr_clear(addr, numpages, __pgprot(_PAGE_RW));
 }
+EXPORT_SYMBOL_GPL(set_memory_ro);
 
 int set_memory_rw(unsigned long addr, int numpages)
 {
 	return change_page_attr_set(addr, numpages, __pgprot(_PAGE_RW));
 }
+EXPORT_SYMBOL_GPL(set_memory_rw);
 
 int set_memory_np(unsigned long addr, int numpages)
 {