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[v6,2/6] mmap: make mlock_future_check() global

Message ID 20200924132904.1391-3-rppt@kernel.org
State New
Headers show
Series mm: introduce memfd_secret system call to create "secret" memory areas | expand

Commit Message

Mike Rapoport Sept. 24, 2020, 1:29 p.m. UTC
From: Mike Rapoport <rppt@linux.ibm.com>

It will be used by the upcoming secret memory implementation.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
 mm/internal.h | 3 +++
 mm/mmap.c     | 5 ++---
 2 files changed, 5 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/mm/internal.h b/mm/internal.h
index 10c677655912..40544fbf49c9 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -350,6 +350,9 @@  static inline void munlock_vma_pages_all(struct vm_area_struct *vma)
 extern void mlock_vma_page(struct page *page);
 extern unsigned int munlock_vma_page(struct page *page);
 
+extern int mlock_future_check(struct mm_struct *mm, unsigned long flags,
+			      unsigned long len);
+
 /*
  * Clear the page's PageMlocked().  This can be useful in a situation where
  * we want to unconditionally remove a page from the pagecache -- e.g.,
diff --git a/mm/mmap.c b/mm/mmap.c
index 40248d84ad5f..190761920142 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1310,9 +1310,8 @@  static inline unsigned long round_hint_to_min(unsigned long hint)
 	return hint;
 }
 
-static inline int mlock_future_check(struct mm_struct *mm,
-				     unsigned long flags,
-				     unsigned long len)
+int mlock_future_check(struct mm_struct *mm, unsigned long flags,
+		       unsigned long len)
 {
 	unsigned long locked, lock_limit;