diff options
author | Bruce Allan <bruce.w.allan@intel.com> | 2008-09-29 23:19:22 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-09-30 03:06:41 -0400 |
commit | a03352d2c1dcb00970801fb8b800a39acd3103d9 (patch) | |
tree | d5977adc31e438d7bf703b48132995d9a2b1aabd /arch/x86/mm/pageattr.c | |
parent | 94aca1dac6f6d21f4b07e4864baf7768cabcc6e7 (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.c | 2 |
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 | } |
909 | EXPORT_SYMBOL_GPL(set_memory_ro); | ||
909 | 910 | ||
910 | int set_memory_rw(unsigned long addr, int numpages) | 911 | int 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 | } |
915 | EXPORT_SYMBOL_GPL(set_memory_rw); | ||
914 | 916 | ||
915 | int set_memory_np(unsigned long addr, int numpages) | 917 | int set_memory_np(unsigned long addr, int numpages) |
916 | { | 918 | { |