The patch titled
paravirt: fix missing pte update
has been added to the -mm tree. Its filename is
paravirt-fix-missing-pte-update.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: paravirt: fix missing pte update
From: Zachary Amsden <zach@xxxxxxxxxx>
Signed-off-by: Zachary Amsden <zach@xxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxx>
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Cc: Chris Wright <chrisw@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/asm-i386/pgtable-2level.h | 3 +--
include/asm-i386/pgtable-3level.h | 3 +--
include/asm-i386/pgtable.h | 8 ++++++++
3 files changed, 10 insertions(+), 4 deletions(-)
diff -puN include/asm-i386/pgtable-2level.h~paravirt-fix-missing-pte-update include/asm-i386/pgtable-2level.h
--- a/include/asm-i386/pgtable-2level.h~paravirt-fix-missing-pte-update
+++ a/include/asm-i386/pgtable-2level.h
@@ -22,8 +22,7 @@
#define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0)
-#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
-#define ptep_get_and_clear(mm,addr,xp) __pte(xchg(&(xp)->pte_low, 0))
+#define raw_ptep_get_and_clear(xp) __pte(xchg(&(xp)->pte_low, 0))
#define pte_page(x) pfn_to_page(pte_pfn(x))
#define pte_none(x) (!(x).pte_low)
diff -puN include/asm-i386/pgtable-3level.h~paravirt-fix-missing-pte-update include/asm-i386/pgtable-3level.h
--- a/include/asm-i386/pgtable-3level.h~paravirt-fix-missing-pte-update
+++ a/include/asm-i386/pgtable-3level.h
@@ -119,8 +119,7 @@ static inline void pmd_clear(pmd_t *pmd)
*(tmp + 1) = 0;
}
-#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
-static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+static inline pte_t raw_ptep_get_and_clear(pte_t *ptep)
{
pte_t res;
diff -puN include/asm-i386/pgtable.h~paravirt-fix-missing-pte-update include/asm-i386/pgtable.h
--- a/include/asm-i386/pgtable.h~paravirt-fix-missing-pte-update
+++ a/include/asm-i386/pgtable.h
@@ -324,6 +324,14 @@ do { \
__young; \
})
+#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
+static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+ pte_t pte = raw_ptep_get_and_clear(ptep);
+ pte_update(mm, addr, ptep);
+ return pte;
+}
+
#define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL
static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, unsigned long addr, pte_t *ptep, int full)
{
_
Patches currently in -mm which might be from zach@xxxxxxxxxx are
fix-potential-interrupts-during-alternative-patching-was.patch
i386-pda-basic-definitions-for-i386-pda.patch
i386-pda-initialize-the-per-cpu-data-area.patch
i386-pda-use-%gs-as-the-pda-base-segment-in-the-kernel.patch
i386-pda-fix-places-where-using-%gs-changes-the-usermode-abi.patch
i386-pda-update-sys_vm86-to-cope-with-changed-pt_regs-and-%gs-usage.patch
i386-pda-implement-smp_processor_id-with-the-pda.patch
i386-pda-implement-current-with-the-pda.patch
paravirt-skip-timer-works.patch
paravirt-skip-timer-works-tidy.patch
paravirt-interrupts-subarch-cleanup.patch
paravirt-fix-missing-pte-update.patch
paravirt-fix-bad-mmu-names.patch
paravirt-mmu-header-movement.patch
-
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