From 33cf170715e87efd0608af6f2c056cafe0e7fc47 Mon Sep 17 00:00:00 2001
From: Bharata B Rao <bharata@linux.ibm.com>
Date: Mon, 25 Nov 2019 08:36:25 +0530
Subject: [PATCH] mm: ksm: Export ksm_madvise()
On PEF-enabled POWER platforms that support running of secure guests,
secure pages of the guest are represented by device private pages
in the host. Such pages needn't participate in KSM merging. This is
achieved by using ksm_madvise() call which need to be exported
since KVM PPC can be a kernel module.
Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
mm/ksm.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/ksm.c b/mm/ksm.c
index dbee2eb4dd05e..e45b02ad3f0ba 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -2478,6 +2478,7 @@ int ksm_madvise(struct vm_area_struct *vma, unsigned long start,
return 0;
}
+EXPORT_SYMBOL_GPL(ksm_madvise);
int __ksm_enter(struct mm_struct *mm)
{
--
2.30.2