Re: [PATCH RFCv2] mm/madvise: introduce MADV_POPULATE_(READ|WRITE) to prefault/prealloc memory
From: Rolf Eike Beer
Date: Tue Mar 09 2021 - 02:37:14 EST
diff --git a/mm/internal.h b/mm/internal.h
index 9902648f2206..a5c4ed23b1db 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -340,6 +340,9 @@ void __vma_unlink_list(struct mm_struct *mm,
struct vm_area_struct *vma);
#ifdef CONFIG_MMU
extern long populate_vma_page_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end, int *nonblocking);
+extern long faultin_vma_page_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end,
+ bool write, int *nonblocking);
extern void munlock_vma_pages_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end);
static inline void munlock_vma_pages_all(struct vm_area_struct *vma)
The parameter name does not match the one in the implementation.
Otherwise the implementation looks fine AFAICT.
Eike