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authorChristoph Lameter <clameter@sgi.com>2008-02-04 22:28:31 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-05 09:44:13 -0800
commit48667e7a43c1a1e0ba743f93ae946f8cb34ff2f9 (patch)
treeb2fb79d16fbac46a859f8332cf95852b73839e07 /mm/memory.c
parenteebd2aa355692afaf9906f62118620f1a1c19dbb (diff)
downloadop-kernel-dev-48667e7a43c1a1e0ba743f93ae946f8cb34ff2f9.zip
op-kernel-dev-48667e7a43c1a1e0ba743f93ae946f8cb34ff2f9.tar.gz
Move vmalloc_to_page() to mm/vmalloc.
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@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
-rw-r--r--mm/memory.c40
1 files changed, 0 insertions, 40 deletions
diff --git a/mm/memory.c b/mm/memory.c
index d902d0e..1b8ca16 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2618,46 +2618,6 @@ int make_pages_present(unsigned long addr, unsigned long end)
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)
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