[Xen-devel] [PATCH 10 of 13] Change pte_clear_full to a more appropriately named pte_clear_not_present,

[Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>]

3 files changed, 4 insertions(+), 4 deletions(-)
include/asm-generic/pgtable.h |    4 ++--
mm/fremap.c                   |    2 +-
mm/memory.c                   |    2 +-


allowing optimizations when not-present mapping changes need not be
reflected in the hardware TLB for protected page table modes.  There is
also another case that can use it in the fremap code.

Signed-off-by: Zachary Amsden <zach@xxxxxxxxxx>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>



===================================================================

diff -r 20f9c0c451af -r 553154516a1b include/asm-generic/pgtable.h
--- a/include/asm-generic/pgtable.h     Tue Aug 01 01:32:00 2006 -0700
+++ b/include/asm-generic/pgtable.h     Tue Aug 01 01:32:00 2006 -0700
@@ -110,8 +110,8 @@ do {                                                        
                  \
 })
 #endif
 
-#ifndef __HAVE_ARCH_PTE_CLEAR_FULL
-#define pte_clear_full(__mm, __address, __ptep, __full)                        
\
+#ifndef __HAVE_ARCH_PTE_CLEAR_NOT_PRESENT_FULL
+#define pte_clear_not_present_full(__mm, __address, __ptep, __full)    \
 do {                                                                   \
        pte_clear((__mm), (__address), (__ptep));                       \
 } while (0)
diff -r 20f9c0c451af -r 553154516a1b mm/fremap.c
--- a/mm/fremap.c       Tue Aug 01 01:32:00 2006 -0700
+++ b/mm/fremap.c       Tue Aug 01 01:32:00 2006 -0700
@@ -39,7 +39,7 @@ static int zap_pte(struct mm_struct *mm,
        } else {
                if (!pte_file(pte))
                        free_swap_and_cache(pte_to_swp_entry(pte));
-               pte_clear(mm, addr, ptep);
+               pte_clear_not_present_full(mm, addr, ptep, 0);
        }
        return !!page;
 }
diff -r 20f9c0c451af -r 553154516a1b mm/memory.c
--- a/mm/memory.c       Tue Aug 01 01:32:00 2006 -0700
+++ b/mm/memory.c       Tue Aug 01 01:32:00 2006 -0700
@@ -689,7 +689,7 @@ static unsigned long zap_pte_range(struc
                        continue;
                if (!pte_file(ptent))
                        free_swap_and_cache(pte_to_swp_entry(ptent));
-               pte_clear_full(mm, addr, pte, tlb->fullmm);
+               pte_clear_not_present_full(mm, addr, pte, tlb->fullmm);
        } while (pte++, addr += PAGE_SIZE, (addr != end && *zap_work > 0));
 
        add_mm_rss(mm, file_rss, anon_rss);



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