The patch titled
paravirt_ops: revert map_pt_hook.
has been added to the -mm tree. Its filename is
paravirt_ops-revert-map_pt_hook.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: paravirt_ops: revert map_pt_hook.
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Back out the map_pt_hook to clear the way for kmap_atomic_pte.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>
Cc: Zachary Amsden <zach@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/i386/kernel/paravirt.c | 2 --
arch/i386/kernel/vmi.c | 2 ++
include/asm-i386/paravirt.h | 7 -------
include/asm-i386/pgtable.h | 23 ++++-------------------
4 files changed, 6 insertions(+), 28 deletions(-)
diff -puN arch/i386/kernel/paravirt.c~paravirt_ops-revert-map_pt_hook arch/i386/kernel/paravirt.c
--- a/arch/i386/kernel/paravirt.c~paravirt_ops-revert-map_pt_hook
+++ a/arch/i386/kernel/paravirt.c
@@ -302,8 +302,6 @@ struct paravirt_ops paravirt_ops = {
.flush_tlb_single = native_flush_tlb_single,
.flush_tlb_others = native_flush_tlb_others,
- .map_pt_hook = paravirt_nop,
-
.alloc_pt = paravirt_nop,
.alloc_pd = paravirt_nop,
.alloc_pd_clone = paravirt_nop,
diff -puN arch/i386/kernel/vmi.c~paravirt_ops-revert-map_pt_hook arch/i386/kernel/vmi.c
--- a/arch/i386/kernel/vmi.c~paravirt_ops-revert-map_pt_hook
+++ a/arch/i386/kernel/vmi.c
@@ -853,8 +853,10 @@ static inline int __init activate_vmi(vo
paravirt_ops.release_pt = vmi_release_pt;
paravirt_ops.release_pd = vmi_release_pd;
}
+#if 0
para_wrap(map_pt_hook, vmi_map_pt_hook, set_linear_mapping,
SetLinearMapping);
+#endif
/*
* These MUST always be patched. Don't support indirect jumps
diff -puN include/asm-i386/paravirt.h~paravirt_ops-revert-map_pt_hook include/asm-i386/paravirt.h
--- a/include/asm-i386/paravirt.h~paravirt_ops-revert-map_pt_hook
+++ a/include/asm-i386/paravirt.h
@@ -169,8 +169,6 @@ struct paravirt_ops
void (*flush_tlb_others)(const cpumask_t *cpus, struct mm_struct *mm,
unsigned long va);
- void (*map_pt_hook)(int type, pte_t *va, u32 pfn);
-
/* Hooks for allocating/releasing pagetable pages */
void (*alloc_pt)(u32 pfn);
void (*alloc_pd)(u32 pfn);
@@ -862,11 +860,6 @@ static inline void flush_tlb_others(cpum
PVOP_VCALL3(flush_tlb_others, &cpumask, mm, va);
}
-static inline void paravirt_map_pt_hook(int type, pte_t *va, u32 pfn)
-{
- PVOP_VCALL3(map_pt_hook, type, va, pfn);
-}
-
static inline void paravirt_alloc_pt(unsigned pfn)
{
PVOP_VCALL1(alloc_pt, pfn);
diff -puN include/asm-i386/pgtable.h~paravirt_ops-revert-map_pt_hook include/asm-i386/pgtable.h
--- a/include/asm-i386/pgtable.h~paravirt_ops-revert-map_pt_hook
+++ a/include/asm-i386/pgtable.h
@@ -272,7 +272,6 @@ static inline void vmalloc_sync_all(void
*/
#define pte_update(mm, addr, ptep) do { } while (0)
#define pte_update_defer(mm, addr, ptep) do { } while (0)
-#define paravirt_map_pt_hook(slot, va, pfn) do { } while (0)
#define raw_ptep_get_and_clear(xp) native_ptep_get_and_clear(xp)
#endif
@@ -481,24 +480,10 @@ extern pte_t *lookup_address(unsigned lo
#endif
#if defined(CONFIG_HIGHPTE)
-#define pte_offset_map(dir, address) \
-({ \
- pte_t *__ptep; \
- unsigned pfn = pmd_val(*(dir)) >> PAGE_SHIFT; \
- __ptep = (pte_t *)kmap_atomic(pfn_to_page(pfn),KM_PTE0);\
- paravirt_map_pt_hook(KM_PTE0,__ptep, pfn); \
- __ptep = __ptep + pte_index(address); \
- __ptep; \
-})
-#define pte_offset_map_nested(dir, address) \
-({ \
- pte_t *__ptep; \
- unsigned pfn = pmd_val(*(dir)) >> PAGE_SHIFT; \
- __ptep = (pte_t *)kmap_atomic(pfn_to_page(pfn),KM_PTE1);\
- paravirt_map_pt_hook(KM_PTE1,__ptep, pfn); \
- __ptep = __ptep + pte_index(address); \
- __ptep; \
-})
+#define pte_offset_map(dir, address) \
+ ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE0) + pte_index(address))
+#define pte_offset_map_nested(dir, address) \
+ ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE1) + pte_index(address))
#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
#define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1)
#else
_
Patches currently in -mm which might be from jeremy@xxxxxxxx are
paravirt_ops-update-maintainers.patch
paravirt_ops-remove-config_debug_paravirt.patch
paravirt_ops-use-paravirt_nop-to-consistently-mark-no-op-operations.patch
paravirt_ops-add-pagetable-accessors-to-pack-and-unpack-pagetable-entries.patch
paravirt_ops-hooks-to-set-up-initial-pagetable.patch
paravirt_ops-allocate-a-fixmap-slot.patch
paravirt_ops-allow-paravirt-backend-to-choose-kernel-pmd-sharing.patch
paravirt_ops-add-hooks-to-intercept-mm-creation-and-destruction.patch
paravirt_ops-rename-struct-paravirt_patch-to-paravirt_patch_site-for-clarity.patch
paravirt_ops-use-patch-site-ids-computed-from-offset-in-paravirt_ops-structure.patch
paravirt_ops-fix-patch-site-clobbers-to-include-return-register.patch
paravirt_ops-consistently-wrap-paravirt-ops-callsites-to-make-them-patchable.patch
paravirt_ops-document-asm-i386-paravirth.patch
paravirt_ops-add-common-patching-machinery.patch
paravirt_ops-add-flush_tlb_others-paravirt_op.patch
paravirt_ops-revert-map_pt_hook.patch
paravirt_ops-add-kmap_atomic_pte-for-mapping-highpte-pages.patch
add-apply_to_page_range-which-applies-a-function-to-a-pte-range.patch
re-enable-vdso-by-default-with-paravirt.patch
remove-noreplacement-option.patch
remove-smp_alt_instructions.patch
rename-the-parainstructions-symbols-to-be-consistent-with-the-others.patch
allow-boot-time-disable-of-smp-altinstructions.patch
allow-boot-time-disable-of-paravirt_ops-patching.patch
paravirt_ops-update-maintainers.patch
paravirt_ops-remove-config_debug_paravirt.patch
paravirt_ops-use-paravirt_nop-to-consistently-mark-no-op-operations.patch
paravirt_ops-add-pagetable-accessors-to-pack-and-unpack-pagetable-entries.patch
paravirt_ops-hooks-to-set-up-initial-pagetable.patch
paravirt_ops-allocate-a-fixmap-slot.patch
paravirt_ops-allow-paravirt-backend-to-choose-kernel-pmd-sharing.patch
paravirt_ops-add-hooks-to-intercept-mm-creation-and-destruction.patch
paravirt_ops-rename-struct-paravirt_patch-to-paravirt_patch_site-for-clarity.patch
paravirt_ops-use-patch-site-ids-computed-from-offset-in-paravirt_ops-structure.patch
paravirt_ops-fix-patch-site-clobbers-to-include-return-register.patch
paravirt_ops-consistently-wrap-paravirt-ops-callsites-to-make-them-patchable.patch
paravirt_ops-document-asm-i386-paravirth.patch
paravirt_ops-add-common-patching-machinery.patch
paravirt_ops-add-flush_tlb_others-paravirt_op.patch
paravirt_ops-revert-map_pt_hook.patch
paravirt_ops-add-kmap_atomic_pte-for-mapping-highpte-pages.patch
add-apply_to_page_range-which-applies-a-function-to-a-pte-range.patch
fixes-and-cleanups-for-earlyprintk-aka-boot-console.patch
ignore-stolen-time-in-the-softlockup-watchdog.patch
add-touch_all_softlockup_watchdogs.patch
clean-up-elf-note-generation.patch
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