The patch titled
Move vmalloc_to_page() to mm/vmalloc.
has been added to the -mm tree. Its filename is
move-vmalloc_to_page-to-mm-vmalloc.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: Move vmalloc_to_page() to mm/vmalloc.
From: Christoph Lameter <clameter@xxxxxxx>
We already have page table manipulation for vmalloc in vmalloc.c. Move the
vmalloc_to_page() function there as well.
Move the definitions for vmalloc related functions in mm.h to a newly created
section. A better place would be vmalloc.h but mm.h is basic and may depend
on these functions. An alternative would be to include vmalloc.h in mm.h (like done
for vmstat.h).
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 6 ++++--
mm/memory.c | 40 ----------------------------------------
mm/vmalloc.c | 38 ++++++++++++++++++++++++++++++++++++++
3 files changed, 42 insertions(+), 42 deletions(-)
diff -puN include/linux/mm.h~move-vmalloc_to_page-to-mm-vmalloc include/linux/mm.h
--- a/include/linux/mm.h~move-vmalloc_to_page-to-mm-vmalloc
+++ a/include/linux/mm.h
@@ -230,6 +230,10 @@ static inline int get_page_unless_zero(s
return atomic_inc_not_zero(&page->_count);
}
+/* Support for virtually mapped pages */
+struct page *vmalloc_to_page(void *addr);
+unsigned long vmalloc_to_pfn(void *addr);
+
static inline struct page *compound_head(struct page *page)
{
if (unlikely(PageTail(page)))
@@ -1073,8 +1077,6 @@ static inline unsigned long vma_pages(st
pgprot_t vm_get_page_prot(unsigned long vm_flags);
struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr);
-struct page *vmalloc_to_page(void *addr);
-unsigned long vmalloc_to_pfn(void *addr);
int remap_pfn_range(struct vm_area_struct *, unsigned long addr,
unsigned long pfn, unsigned long size, pgprot_t);
int vm_insert_page(struct vm_area_struct *, unsigned long addr, struct page *);
diff -puN mm/memory.c~move-vmalloc_to_page-to-mm-vmalloc mm/memory.c
--- a/mm/memory.c~move-vmalloc_to_page-to-mm-vmalloc
+++ a/mm/memory.c
@@ -2612,46 +2612,6 @@ int make_pages_present(unsigned long add
return ret == len ? 0 : -1;
}
-/*
- * Map a vmalloc()-space virtual address to the physical page.
- */
-struct page * vmalloc_to_page(void * vmalloc_addr)
-{
- unsigned long addr = (unsigned long) vmalloc_addr;
- struct page *page = NULL;
- pgd_t *pgd = pgd_offset_k(addr);
- pud_t *pud;
- pmd_t *pmd;
- pte_t *ptep, pte;
-
- if (!pgd_none(*pgd)) {
- pud = pud_offset(pgd, addr);
- if (!pud_none(*pud)) {
- pmd = pmd_offset(pud, addr);
- if (!pmd_none(*pmd)) {
- ptep = pte_offset_map(pmd, addr);
- pte = *ptep;
- if (pte_present(pte))
- page = pte_page(pte);
- pte_unmap(ptep);
- }
- }
- }
- return page;
-}
-
-EXPORT_SYMBOL(vmalloc_to_page);
-
-/*
- * Map a vmalloc()-space virtual address to the physical page frame number.
- */
-unsigned long vmalloc_to_pfn(void * vmalloc_addr)
-{
- return page_to_pfn(vmalloc_to_page(vmalloc_addr));
-}
-
-EXPORT_SYMBOL(vmalloc_to_pfn);
-
#if !defined(__HAVE_ARCH_GATE_AREA)
#if defined(AT_SYSINFO_EHDR)
diff -puN mm/vmalloc.c~move-vmalloc_to_page-to-mm-vmalloc mm/vmalloc.c
--- a/mm/vmalloc.c~move-vmalloc_to_page-to-mm-vmalloc
+++ a/mm/vmalloc.c
@@ -166,6 +166,44 @@ int map_vm_area(struct vm_struct *area,
}
EXPORT_SYMBOL_GPL(map_vm_area);
+/*
+ * Map a vmalloc()-space virtual address to the physical page.
+ */
+struct page *vmalloc_to_page(void *vmalloc_addr)
+{
+ unsigned long addr = (unsigned long) vmalloc_addr;
+ struct page *page = NULL;
+ pgd_t *pgd = pgd_offset_k(addr);
+ pud_t *pud;
+ pmd_t *pmd;
+ pte_t *ptep, pte;
+
+ if (!pgd_none(*pgd)) {
+ pud = pud_offset(pgd, addr);
+ if (!pud_none(*pud)) {
+ pmd = pmd_offset(pud, addr);
+ if (!pmd_none(*pmd)) {
+ ptep = pte_offset_map(pmd, addr);
+ pte = *ptep;
+ if (pte_present(pte))
+ page = pte_page(pte);
+ pte_unmap(ptep);
+ }
+ }
+ }
+ return page;
+}
+EXPORT_SYMBOL(vmalloc_to_page);
+
+/*
+ * Map a vmalloc()-space virtual address to the physical page frame number.
+ */
+unsigned long vmalloc_to_pfn(void *vmalloc_addr)
+{
+ return page_to_pfn(vmalloc_to_page(vmalloc_addr));
+}
+EXPORT_SYMBOL(vmalloc_to_pfn);
+
static struct vm_struct *__get_vm_area_node(unsigned long size, unsigned long flags,
unsigned long start, unsigned long end,
int node, gfp_t gfp_mask)
_
Patches currently in -mm which might be from clameter@xxxxxxx are
origin.patch
intel-iommu-dmar-detection-and-parsing-logic.patch
intel-iommu-pci-generic-helper-function.patch
intel-iommu-clflush_cache_range-now-takes-size-param.patch
intel-iommu-iova-allocation-and-management-routines.patch
intel-iommu-intel-iommu-driver.patch
intel-iommu-avoid-memory-allocation-failures-in-dma-map-api-calls.patch
intel-iommu-intel-iommu-cmdline-option-forcedac.patch
intel-iommu-dmar-fault-handling-support.patch
intel-iommu-iommu-gfx-workaround.patch
intel-iommu-iommu-floppy-workaround.patch
mem-policy-fix-mempolicy-usage-in-pci-driver.patch
slab-api-remove-useless-ctor-parameter-and-reorder-parameters-vs-unionfs.patch
git-x86.patch
slub-avoid-atomic-operation-for-slab_unlock.patch
pagecache-zeroing-zero_user_segment-zero_user_segments-and-zero_user.patch
move-vmalloc_to_page-to-mm-vmalloc.patch
vmalloc-add-const-to-void-parameters.patch
i386-resolve-dependency-of-asm-i386-pgtableh-on-highmemh.patch
is_vmalloc_addr-check-if-an-address-is-within-the-vmalloc-boundaries.patch
vmalloc-clean-up-page-array-indexing.patch
vunmap-return-page-array-passed-on-vmap.patch
slub-move-count_partial.patch
slub-rename-numa-defrag_ratio-to-remote_node_defrag_ratio.patch
slub-consolidate-add_partial-and-add_partial_tail-to-one-function.patch
vm-allow-get_page_unless_zero-on-compound-pages.patch
dentries-extract-common-code-to-remove-dentry-from-lru.patch
bufferhead-revert-constructor-removal.patch
revoke-core-code.patch
slab-api-remove-useless-ctor-parameter-and-reorder-parameters-vs-revoke.patch
memcontrol-move-oom-task-exclusion-to-tasklist.patch
oom-add-sysctl-to-enable-task-memory-dump.patch
reiser4.patch
reiser4-portion-of-zero_user-cleanup-patch.patch
page-owner-tracking-leak-detector.patch
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