In commit 185be15143aa ("x86/mm: Remove set_pages_x() and set_pages_nx()"),
the wrappers were removed as they did not provide a real benefit over
set_memory_x() and set_memory_nx(). This change causes a problem because
the wrappers were exported, but the underlying routines were not. As a
result, external modules that used the wrappers would need to recreate
a significant part of memory management.
Signed-off-by: Larry Finger <larry.fin...@lwfinger.net>
Cc: Christoph Hellwig <h...@lst.de>
Cc: Peter Zijlstra (Intel) <pet...@infradead.org>
Fixes: 185be15143aa ("x86/mm: Remove set_pages_x() and set_pages_nx()")
Cc: Ingo Molnar <mi...@kernel.org>
---
arch/x86/mm/pageattr.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 0d09cc5aad61..755867fc7c19 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -1885,6 +1885,7 @@ int set_memory_x(unsigned long addr, int numpages)
return change_page_attr_clear(&addr, numpages, __pgprot(_PAGE_NX), 0);
}
+EXPORT_SYMBOL(set_memory_x);
int set_memory_nx(unsigned long addr, int numpages)
{
@@ -1893,6 +1894,7 @@ int set_memory_nx(unsigned long addr, int numpages)
return change_page_attr_set(&addr, numpages, __pgprot(_PAGE_NX), 0);
}
+EXPORT_SYMBOL(set_memory_nx);
int set_memory_ro(unsigned long addr, int numpages)
{
--
2.23.0
