The patch titled
Subject: mm: thp: make transhuge_vma_suitable available for anonymous THP
has been added to the -mm tree. Its filename is
mm-thp-make-transhuge_vma_suitable-available-for-anonymous-thp-v4.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-thp-make-transhuge_vma_suitable-available-for-anonymous-thp-v4.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-thp-make-transhuge_vma_suitable-available-for-anonymous-thp-v4.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx>
Subject: mm: thp: make transhuge_vma_suitable available for anonymous THP
Move transhuge_vma_suitable() to include/linux/huge_mm.h and regroup some
functions in linux/include/mm.h, per Hugh.
Link: http://lkml.kernel.org/r/1563400758-124759-2-git-send-email-yang.shi@xxxxxxxxxxxxxxxxx
Signed-off-by: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/huge_mm.h | 23 +++++++++++++++++++++++
include/linux/mm.h | 34 +++++++++++++++++-----------------
mm/internal.h | 25 -------------------------
3 files changed, 40 insertions(+), 42 deletions(-)
--- a/include/linux/huge_mm.h~mm-thp-make-transhuge_vma_suitable-available-for-anonymous-thp-v4
+++ a/include/linux/huge_mm.h
@@ -121,6 +121,23 @@ static inline bool __transparent_hugepag
bool transparent_hugepage_enabled(struct vm_area_struct *vma);
+#define HPAGE_CACHE_INDEX_MASK (HPAGE_PMD_NR - 1)
+
+static inline bool transhuge_vma_suitable(struct vm_area_struct *vma,
+ unsigned long haddr)
+{
+ /* Don't have to check pgoff for anonymous vma */
+ if (!vma_is_anonymous(vma)) {
+ if (((vma->vm_start >> PAGE_SHIFT) & HPAGE_CACHE_INDEX_MASK) !=
+ (vma->vm_pgoff & HPAGE_CACHE_INDEX_MASK))
+ return false;
+ }
+
+ if (haddr < vma->vm_start || haddr + HPAGE_PMD_SIZE > vma->vm_end)
+ return false;
+ return true;
+}
+
#define transparent_hugepage_use_zero_page() \
(transparent_hugepage_flags & \
(1<<TRANSPARENT_HUGEPAGE_USE_ZERO_PAGE_FLAG))
@@ -270,6 +287,12 @@ static inline bool transparent_hugepage_
{
return false;
}
+
+static inline bool transhuge_vma_suitable(struct vm_area_struct *vma,
+ unsigned long haddr)
+{
+ return false;
+}
static inline void prep_transhuge_page(struct page *page) {}
--- a/include/linux/mm.h~mm-thp-make-transhuge_vma_suitable-available-for-anonymous-thp-v4
+++ a/include/linux/mm.h
@@ -541,6 +541,23 @@ static inline void vma_set_anonymous(str
vma->vm_ops = NULL;
}
+static inline bool vma_is_anonymous(struct vm_area_struct *vma)
+{
+ return !vma->vm_ops;
+}
+
+#ifdef CONFIG_SHMEM
+/*
+ * The vma_is_shmem is not inline because it is used only by slow
+ * paths in userfault.
+ */
+bool vma_is_shmem(struct vm_area_struct *vma);
+#else
+static inline bool vma_is_shmem(struct vm_area_struct *vma) { return false; }
+#endif
+
+int vma_is_stack_for_current(struct vm_area_struct *vma);
+
/* flush_tlb_range() takes a vma, not a mm, and can care about flags */
#define TLB_FLUSH_VMA(mm,flags) { .vm_mm = (mm), .vm_flags = (flags) }
@@ -1620,23 +1637,6 @@ int clear_page_dirty_for_io(struct page
int get_cmdline(struct task_struct *task, char *buffer, int buflen);
-static inline bool vma_is_anonymous(struct vm_area_struct *vma)
-{
- return !vma->vm_ops;
-}
-
-#ifdef CONFIG_SHMEM
-/*
- * The vma_is_shmem is not inline because it is used only by slow
- * paths in userfault.
- */
-bool vma_is_shmem(struct vm_area_struct *vma);
-#else
-static inline bool vma_is_shmem(struct vm_area_struct *vma) { return false; }
-#endif
-
-int vma_is_stack_for_current(struct vm_area_struct *vma);
-
extern unsigned long move_page_tables(struct vm_area_struct *vma,
unsigned long old_addr, struct vm_area_struct *new_vma,
unsigned long new_addr, unsigned long len,
--- a/mm/internal.h~mm-thp-make-transhuge_vma_suitable-available-for-anonymous-thp-v4
+++ a/mm/internal.h
@@ -551,29 +551,4 @@ static inline bool is_migrate_highatomic
void setup_zone_pageset(struct zone *zone);
extern struct page *alloc_new_node_page(struct page *page, unsigned long node);
-
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-#define HPAGE_CACHE_INDEX_MASK (HPAGE_PMD_NR - 1)
-static inline bool transhuge_vma_suitable(struct vm_area_struct *vma,
- unsigned long haddr)
-{
- /* Don't have to check pgoff for anonymous vma */
- if (!vma_is_anonymous(vma)) {
- if (((vma->vm_start >> PAGE_SHIFT) & HPAGE_CACHE_INDEX_MASK) !=
- (vma->vm_pgoff & HPAGE_CACHE_INDEX_MASK))
- return false;
- }
-
- if (haddr < vma->vm_start || haddr + HPAGE_PMD_SIZE > vma->vm_end)
- return false;
- return true;
-}
-#else
-static inline bool transhuge_vma_suitable(struct vm_area_struct *vma,
- unsigned long haddr)
-{
- return false;
-}
-#endif
-
#endif /* __MM_INTERNAL_H */
_
Patches currently in -mm which might be from yang.shi@xxxxxxxxxxxxxxxxx are
revert-kmemleak-allow-to-coexist-with-fault-injection.patch
mm-mempolicy-make-the-behavior-consistent-when-mpol_mf_move-and-mpol_mf_strict-were-specified.patch
mm-mempolicy-handle-vma-with-unmovable-pages-mapped-correctly-in-mbind.patch
mm-thp-make-transhuge_vma_suitable-available-for-anonymous-thp.patch
mm-thp-make-transhuge_vma_suitable-available-for-anonymous-thp-v4.patch
mm-thp-fix-false-negative-of-shmem-vmas-thp-eligibility.patch
