[PATCH 17/20] mm: Export follow_pte()

2016-09-27 Thread Jan Kara 
DAX will need to implement its own version of page_check_address(). To
avoid duplicating page table walking code, export follow_pte() which
does what we need.

Signed-off-by: Jan Kara 
---
 include/linux/mm.h | 2 ++
 mm/memory.c| 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index e5a014be8932..133fabe4bb4c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1224,6 +1224,8 @@ int copy_page_range(struct mm_struct *dst, struct 
mm_struct *src,
struct vm_area_struct *vma);
 void unmap_mapping_range(struct address_space *mapping,
loff_t const holebegin, loff_t const holelen, int even_cows);
+int follow_pte(struct mm_struct *mm, unsigned long address, pte_t **ptepp,
+  spinlock_t **ptlp);
 int follow_pfn(struct vm_area_struct *vma, unsigned long address,
unsigned long *pfn);
 int follow_phys(struct vm_area_struct *vma, unsigned long address,
diff --git a/mm/memory.c b/mm/memory.c
index 8c8cb7f2133e..e7a4a30a5e88 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3763,8 +3763,8 @@ out:
return -EINVAL;
 }
 
-static inline int follow_pte(struct mm_struct *mm, unsigned long address,
-pte_t **ptepp, spinlock_t **ptlp)
+int follow_pte(struct mm_struct *mm, unsigned long address, pte_t **ptepp,
+  spinlock_t **ptlp)
 {
int res;
 
-- 
2.6.6

___
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm

[PATCH 17/20] mm: Export follow_pte()

2016-11-01 Thread Jan Kara 
DAX will need to implement its own version of page_check_address(). To
avoid duplicating page table walking code, export follow_pte() which
does what we need.

Signed-off-by: Jan Kara 
---
 include/linux/mm.h | 2 ++
 mm/memory.c| 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index e5a014be8932..133fabe4bb4c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1224,6 +1224,8 @@ int copy_page_range(struct mm_struct *dst, struct 
mm_struct *src,
struct vm_area_struct *vma);
 void unmap_mapping_range(struct address_space *mapping,
loff_t const holebegin, loff_t const holelen, int even_cows);
+int follow_pte(struct mm_struct *mm, unsigned long address, pte_t **ptepp,
+  spinlock_t **ptlp);
 int follow_pfn(struct vm_area_struct *vma, unsigned long address,
unsigned long *pfn);
 int follow_phys(struct vm_area_struct *vma, unsigned long address,
diff --git a/mm/memory.c b/mm/memory.c
index 8c8cb7f2133e..e7a4a30a5e88 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3763,8 +3763,8 @@ out:
return -EINVAL;
 }
 
-static inline int follow_pte(struct mm_struct *mm, unsigned long address,
-pte_t **ptepp, spinlock_t **ptlp)
+int follow_pte(struct mm_struct *mm, unsigned long address, pte_t **ptepp,
+  spinlock_t **ptlp)
 {
int res;
 
-- 
2.6.6

___
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm

[PATCH 17/20] mm: Export follow_pte()

2016-11-18 Thread Jan Kara 
DAX will need to implement its own version of page_check_address(). To
avoid duplicating page table walking code, export follow_pte() which
does what we need.

Reviewed-by: Ross Zwisler 
Signed-off-by: Jan Kara 
---
 include/linux/mm.h | 2 ++
 mm/memory.c| 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 685ff1c57f2b..a5f52c0ce61a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1210,6 +1210,8 @@ int copy_page_range(struct mm_struct *dst, struct 
mm_struct *src,
struct vm_area_struct *vma);
 void unmap_mapping_range(struct address_space *mapping,
loff_t const holebegin, loff_t const holelen, int even_cows);
+int follow_pte(struct mm_struct *mm, unsigned long address, pte_t **ptepp,
+  spinlock_t **ptlp);
 int follow_pfn(struct vm_area_struct *vma, unsigned long address,
unsigned long *pfn);
 int follow_phys(struct vm_area_struct *vma, unsigned long address,
diff --git a/mm/memory.c b/mm/memory.c
index bf87081c8a37..d4874d3733f4 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3782,8 +3782,8 @@ static int __follow_pte(struct mm_struct *mm, unsigned 
long address,
return -EINVAL;
 }
 
-static inline int follow_pte(struct mm_struct *mm, unsigned long address,
-pte_t **ptepp, spinlock_t **ptlp)
+int follow_pte(struct mm_struct *mm, unsigned long address, pte_t **ptepp,
+  spinlock_t **ptlp)
 {
int res;
 
-- 
2.6.6

___
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm

Re: [PATCH 17/20] mm: Export follow_pte()

2016-10-18 Thread Ross Zwisler 
On Tue, Sep 27, 2016 at 06:08:21PM +0200, Jan Kara wrote:
> DAX will need to implement its own version of page_check_address(). To
> avoid duplicating page table walking code, export follow_pte() which
> does what we need.
> 
> Signed-off-by: Jan Kara 

Reviewed-by: Ross Zwisler 
___
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm