From: Ira Weiny <[email protected]>

commit ad8cfb9c42ef83ecf4079bc7d77e6557648e952b upstream.

The 'write' parameter is unused in gup_fast_permitted() so remove it.

Signed-off-by: Ira Weiny <[email protected]>
Acked-by: Kirill A. Shutemov <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Cc: Justin Forbes <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 arch/x86/include/asm/pgtable_64.h |    3 +--
 mm/gup.c                          |    6 +++---
 2 files changed, 4 insertions(+), 5 deletions(-)

--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -259,8 +259,7 @@ extern void init_extra_mapping_uc(unsign
 extern void init_extra_mapping_wb(unsigned long phys, unsigned long size);
 
 #define gup_fast_permitted gup_fast_permitted
-static inline bool gup_fast_permitted(unsigned long start, int nr_pages,
-               int write)
+static inline bool gup_fast_permitted(unsigned long start, int nr_pages)
 {
        unsigned long len, end;
 
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1811,7 +1811,7 @@ static void gup_pgd_range(unsigned long
  * Check if it's allowed to use __get_user_pages_fast() for the range, or
  * we need to fall back to the slow version:
  */
-bool gup_fast_permitted(unsigned long start, int nr_pages, int write)
+bool gup_fast_permitted(unsigned long start, int nr_pages)
 {
        unsigned long len, end;
 
@@ -1853,7 +1853,7 @@ int __get_user_pages_fast(unsigned long
         * block IPIs that come from THPs splitting.
         */
 
-       if (gup_fast_permitted(start, nr_pages, write)) {
+       if (gup_fast_permitted(start, nr_pages)) {
                local_irq_save(flags);
                gup_pgd_range(start, end, write, pages, &nr);
                local_irq_restore(flags);
@@ -1895,7 +1895,7 @@ int get_user_pages_fast(unsigned long st
        if (unlikely(!access_ok((void __user *)start, len)))
                return -EFAULT;
 
-       if (gup_fast_permitted(start, nr_pages, write)) {
+       if (gup_fast_permitted(start, nr_pages)) {
                local_irq_disable();
                gup_pgd_range(addr, end, write, pages, &nr);
                local_irq_enable();


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