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authorBruce Allan <bruce.w.allan@intel.com>2008-09-29 23:19:22 -0400
committerIngo Molnar <mingo@elte.hu>2008-09-30 03:06:41 -0400
commita03352d2c1dcb00970801fb8b800a39acd3103d9 (patch)
treed5977adc31e438d7bf703b48132995d9a2b1aabd /arch/x86/mm/pageattr.c
parent94aca1dac6f6d21f4b07e4864baf7768cabcc6e7 (diff)
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>
Diffstat (limited to 'arch/x86/mm/pageattr.c')
-rw-r--r--arch/x86/mm/pageattr.c2
1 files changed, 2 insertions, 0 deletions
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)
906{ 906{
907 return change_page_attr_clear(addr, numpages, __pgprot(_PAGE_RW)); 907 return change_page_attr_clear(addr, numpages, __pgprot(_PAGE_RW));
908} 908}
909EXPORT_SYMBOL_GPL(set_memory_ro);
909 910
910int set_memory_rw(unsigned long addr, int numpages) 911int set_memory_rw(unsigned long addr, int numpages)
911{ 912{
912 return change_page_attr_set(addr, numpages, __pgprot(_PAGE_RW)); 913 return change_page_attr_set(addr, numpages, __pgprot(_PAGE_RW));
913} 914}
915EXPORT_SYMBOL_GPL(set_memory_rw);
914 916
915int set_memory_np(unsigned long addr, int numpages) 917int set_memory_np(unsigned long addr, int numpages)
916{ 918{