Commit a03352d2 authored by Bruce Allan's avatar Bruce Allan Committed by Ingo Molnar

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: default avatarBruce Allan <bruce.w.allan@intel.com>
Signed-off-by: default avatarJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 94aca1da
...@@ -906,11 +906,13 @@ int set_memory_ro(unsigned long addr, int numpages) ...@@ -906,11 +906,13 @@ int set_memory_ro(unsigned long addr, int numpages)
{ {
return change_page_attr_clear(addr, numpages, __pgprot(_PAGE_RW)); 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) int set_memory_rw(unsigned long addr, int numpages)
{ {
return change_page_attr_set(addr, numpages, __pgprot(_PAGE_RW)); 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) int set_memory_np(unsigned long addr, int numpages)
{ {
......
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