[PATCH v2 1/3] mm: khugepaged: export set_recommended_min_free_kbytes()

[Breno Leitao <leitao@debian.org>]

Make set_recommended_min_free_kbytes() callable from outside
khugepaged.c by removing the static qualifier and adding a
declaration in include/linux/khugepaged.h.

This allows callers that change THP settings to recalculate
watermarks without going through start_stop_khugepaged().

Suggested-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
---
 include/linux/khugepaged.h | 1 +
 mm/khugepaged.c            | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/khugepaged.h b/include/linux/khugepaged.h
index d7a9053ff4fed..76252865fca4b 100644
--- a/include/linux/khugepaged.h
+++ b/include/linux/khugepaged.h
@@ -16,6 +16,7 @@ extern void __khugepaged_exit(struct mm_struct *mm);
 extern void khugepaged_enter_vma(struct vm_area_struct *vma,
 				 vm_flags_t vm_flags);
 extern void khugepaged_min_free_kbytes_update(void);
+extern void set_recommended_min_free_kbytes(void);
 extern bool current_is_khugepaged(void);
 void collapse_pte_mapped_thp(struct mm_struct *mm, unsigned long addr,
 		bool install_pmd);
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 1dd3cfca610db..56a41c21b44c9 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -2630,7 +2630,7 @@ static int khugepaged(void *none)
 	return 0;
 }
 
-static void set_recommended_min_free_kbytes(void)
+void set_recommended_min_free_kbytes(void)
 {
 	struct zone *zone;
 	int nr_zones = 0;

-- 
2.47.3