The patch titled
Subject: mm: export various functions for the benefit of DAX
has been removed from the -mm tree. Its filename was
mm-export-various-functions-for-the-benefit-of-dax.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
Subject: mm: export various functions for the benefit of DAX
To use the huge zero page in DAX, we need these functions exported.
Signed-off-by: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
Cc: Hillf Danton <dhillf@xxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Theodore Ts'o <tytso@xxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/huge_mm.h | 10 ++++++++++
mm/huge_memory.c | 7 +------
2 files changed, 11 insertions(+), 6 deletions(-)
diff -puN include/linux/huge_mm.h~mm-export-various-functions-for-the-benefit-of-dax include/linux/huge_mm.h
--- a/include/linux/huge_mm.h~mm-export-various-functions-for-the-benefit-of-dax
+++ a/include/linux/huge_mm.h
@@ -155,6 +155,16 @@ static inline bool is_huge_zero_page(str
return ACCESS_ONCE(huge_zero_page) == page;
}
+static inline bool is_huge_zero_pmd(pmd_t pmd)
+{
+ return is_huge_zero_page(pmd_page(pmd));
+}
+
+struct page *get_huge_zero_page(void);
+bool set_huge_zero_page(pgtable_t pgtable, struct mm_struct *mm,
+ struct vm_area_struct *vma, unsigned long haddr,
+ pmd_t *pmd, struct page *zero_page);
+
#else /* CONFIG_TRANSPARENT_HUGEPAGE */
#define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; })
#define HPAGE_PMD_MASK ({ BUILD_BUG(); 0; })
diff -puN mm/huge_memory.c~mm-export-various-functions-for-the-benefit-of-dax mm/huge_memory.c
--- a/mm/huge_memory.c~mm-export-various-functions-for-the-benefit-of-dax
+++ a/mm/huge_memory.c
@@ -173,12 +173,7 @@ fail:
static atomic_t huge_zero_refcount;
struct page *huge_zero_page __read_mostly;
-static inline bool is_huge_zero_pmd(pmd_t pmd)
-{
- return is_huge_zero_page(pmd_page(pmd));
-}
-
-static struct page *get_huge_zero_page(void)
+struct page *get_huge_zero_page(void)
{
struct page *zero_page;
retry:
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxxxx are
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