Tested this patch with hfi1 driver and no issue found. 

Tested-by: Kamenee Arumugam <[email protected]>

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Jérôme Glisse
Sent: Tuesday, August 29, 2017 7:55 PM
To: [email protected]; [email protected]
Cc: Jérôme Glisse <[email protected]>; [email protected]; Luick, Dean 
<[email protected]>; Weiny, Ira <[email protected]>; Doug Ledford 
<[email protected]>; Kirill A . Shutemov <[email protected]>; 
Andrew Morton <[email protected]>; Linus Torvalds 
<[email protected]>; Andrea Arcangeli <[email protected]>
Subject: [PATCH 06/13] IB/hfi1: update to new mmu_notifier semantic

Call to mmu_notifier_invalidate_page() are replaced by call to
mmu_notifier_invalidate_range() and thus call are bracketed by call to 
mmu_notifier_invalidate_range_start()/end()

Remove now useless invalidate_page callback.

Signed-off-by: Jérôme Glisse <[email protected]>
Cc: [email protected]
Cc: Dean Luick <[email protected]>
Cc: Ira Weiny <[email protected]>
Cc: Doug Ledford <[email protected]>
Cc: Kirill A. Shutemov <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
---
 drivers/infiniband/hw/hfi1/mmu_rb.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/mmu_rb.c 
b/drivers/infiniband/hw/hfi1/mmu_rb.c
index ccbf52c8ff6f..e4b56a0dd6d0 100644
--- a/drivers/infiniband/hw/hfi1/mmu_rb.c
+++ b/drivers/infiniband/hw/hfi1/mmu_rb.c
@@ -67,8 +67,6 @@ struct mmu_rb_handler {
 
 static unsigned long mmu_node_start(struct mmu_rb_node *);  static unsigned 
long mmu_node_last(struct mmu_rb_node *); -static inline void 
mmu_notifier_page(struct mmu_notifier *, struct mm_struct *,
-                                    unsigned long);
 static inline void mmu_notifier_range_start(struct mmu_notifier *,
                                            struct mm_struct *,
                                            unsigned long, unsigned long); @@ 
-82,7 +80,6 @@ static void do_remove(struct mmu_rb_handler *handler,  static 
void handle_remove(struct work_struct *work);
 
 static const struct mmu_notifier_ops mn_opts = {
-       .invalidate_page = mmu_notifier_page,
        .invalidate_range_start = mmu_notifier_range_start,  };
 
@@ -285,12 +282,6 @@ void hfi1_mmu_rb_remove(struct mmu_rb_handler *handler,
        handler->ops->remove(handler->ops_arg, node);  }
 
-static inline void mmu_notifier_page(struct mmu_notifier *mn,
-                                    struct mm_struct *mm, unsigned long addr)
-{
-       mmu_notifier_mem_invalidate(mn, mm, addr, addr + PAGE_SIZE);
-}
-
 static inline void mmu_notifier_range_start(struct mmu_notifier *mn,
                                            struct mm_struct *mm,
                                            unsigned long start,
--
2.13.5

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