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| author | Bruce Allan <bruce.w.allan@intel.com> | 2008-09-30 03:19:22 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-30 07:06:41 (GMT) |
| commit | a03352d2c1dcb00970801fb8b800a39acd3103d9 (patch) | |
| tree | d5977adc31e438d7bf703b48132995d9a2b1aabd | |
| parent | 94aca1dac6f6d21f4b07e4864baf7768cabcc6e7 (diff) | |
| download | linux-a03352d2c1dcb00970801fb8b800a39acd3103d9.tar.xz | |
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>
| -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 43e2f84..62c1eef 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) { |