Messages in this thread Patch in this message | | | From | Jesse Brandeburg <> | Subject | [RFC PATCH 01/12] x86: export set_memory_ro and set_memory_rw | Date | Mon, 29 Sep 2008 20:19:22 -0700 |
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From: Bruce Allan <bruce.w.allan@intel.com>
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.
Ingo Molnar <mingo@elte.hu> said: >> +EXPORT_SYMBOL(set_memory_rw); > that's fine, as long as you make it kernel-internal EXPORT_SYMBOL_GPL()
patch was modified with this suggestion.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: Ingo Molnar <mingo@elte.hu> ---
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) {
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