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authorZachary Amsden <zach@vmware.com>2006-09-30 23:29:31 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-01 00:39:33 -0700
commit9888a1cae3f859db38b9604e3df1c02177161bb0 (patch)
tree5954dc5e1a2dc1251a57a41aa15b7776a530f230 /mm
parent3dc907951446b9317b1887223caa4e083390de9f (diff)
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[PATCH] paravirt: pte clear not present
Change pte_clear_full to a more appropriately named pte_clear_not_present, 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@vmware.com> Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/fremap.c2
-rw-r--r--mm/memory.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/mm/fremap.c b/mm/fremap.c
index aa30618ec6b..7a9d0f5d246 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -39,7 +39,7 @@ static int zap_pte(struct mm_struct *mm, struct vm_area_struct *vma,
} 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 --git a/mm/memory.c b/mm/memory.c
index 7707187484c..2e754621d33 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -690,7 +690,7 @@ static unsigned long zap_pte_range(struct mmu_gather *tlb,
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);