The patch titled
Subject: avr32: drop _PAGE_FILE and pte_file()-related helpers
has been added to the -mm tree. Its filename is
avr32-drop-_page_file-and-pte_file-related-helpers.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/avr32-drop-_page_file-and-pte_file-related-helpers.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/avr32-drop-_page_file-and-pte_file-related-helpers.patch
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------------------------------------------------------
From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Subject: avr32: drop _PAGE_FILE and pte_file()-related helpers
We've replaced remap_file_pages(2) implementation with emulation. Nobody
creates non-linear mapping anymore.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Haavard Skinnemoen <hskinnemoen@xxxxxxxxx>
Acked-by: Hans-Christian Egtvedt <egtvedt@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/avr32/include/asm/pgtable.h | 25 -------------------------
1 file changed, 25 deletions(-)
diff -puN arch/avr32/include/asm/pgtable.h~avr32-drop-_page_file-and-pte_file-related-helpers arch/avr32/include/asm/pgtable.h
--- a/arch/avr32/include/asm/pgtable.h~avr32-drop-_page_file-and-pte_file-related-helpers
+++ a/arch/avr32/include/asm/pgtable.h
@@ -86,9 +86,6 @@ extern struct page *empty_zero_page;
#define _PAGE_BIT_PRESENT 10
#define _PAGE_BIT_ACCESSED 11 /* software: page was accessed */
-/* The following flags are only valid when !PRESENT */
-#define _PAGE_BIT_FILE 0 /* software: pagecache or swap? */
-
#define _PAGE_WT (1 << _PAGE_BIT_WT)
#define _PAGE_DIRTY (1 << _PAGE_BIT_DIRTY)
#define _PAGE_EXECUTE (1 << _PAGE_BIT_EXECUTE)
@@ -101,7 +98,6 @@ extern struct page *empty_zero_page;
/* Software flags */
#define _PAGE_ACCESSED (1 << _PAGE_BIT_ACCESSED)
#define _PAGE_PRESENT (1 << _PAGE_BIT_PRESENT)
-#define _PAGE_FILE (1 << _PAGE_BIT_FILE)
/*
* Page types, i.e. sizes. _PAGE_TYPE_NONE corresponds to what is
@@ -210,14 +206,6 @@ static inline int pte_special(pte_t pte)
return 0;
}
-/*
- * The following only work if pte_present() is not true.
- */
-static inline int pte_file(pte_t pte)
-{
- return pte_val(pte) & _PAGE_FILE;
-}
-
/* Mutator functions for PTE bits */
static inline pte_t pte_wrprotect(pte_t pte)
{
@@ -329,7 +317,6 @@ extern void update_mmu_cache(struct vm_a
* Encode and decode a swap entry
*
* Constraints:
- * _PAGE_FILE at bit 0
* _PAGE_TYPE_* at bits 2-3 (for emulating _PAGE_PROTNONE)
* _PAGE_PRESENT at bit 10
*
@@ -346,18 +333,6 @@ extern void update_mmu_cache(struct vm_a
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
-/*
- * Encode and decode a nonlinear file mapping entry. We have to
- * preserve _PAGE_FILE and _PAGE_PRESENT here. _PAGE_TYPE_* isn't
- * necessary, since _PAGE_FILE implies !_PAGE_PROTNONE (?)
- */
-#define PTE_FILE_MAX_BITS 30
-#define pte_to_pgoff(pte) (((pte_val(pte) >> 1) & 0x1ff) \
- | ((pte_val(pte) >> 11) << 9))
-#define pgoff_to_pte(off) ((pte_t) { ((((off) & 0x1ff) << 1) \
- | (((off) >> 9) << 11) \
- | _PAGE_FILE) })
-
typedef pte_t *pte_addr_t;
#define kern_addr_valid(addr) (1)
_
Patches currently in -mm which might be from kirill.shutemov@xxxxxxxxxxxxxxx are
mm-protect-set_page_dirty-from-ongoing-truncation.patch
mm-replace-remap_file_pages-syscall-with-emulation.patch
mm-drop-support-of-non-linear-mapping-from-unmap-zap-codepath.patch
mm-drop-support-of-non-linear-mapping-from-fault-codepath.patch
mm-drop-vm_ops-remap_pages-and-generic_file_remap_pages-stub.patch
proc-drop-handling-non-linear-mappings.patch
rmap-drop-support-of-non-linear-mappings.patch
mm-replace-vma-shareadlinear-with-vma-shared.patch
mm-remove-rest-usage-of-vm_nonlinear-and-pte_file.patch
asm-generic-drop-unused-pte_file-helpers.patch
alpha-drop-_page_file-and-pte_file-related-helpers.patch
arc-drop-_page_file-and-pte_file-related-helpers.patch
arm64-drop-pte_file-and-pte_file-related-helpers.patch
arm-drop-l_pte_file-and-pte_file-related-helpers.patch
avr32-drop-_page_file-and-pte_file-related-helpers.patch
blackfin-drop-pte_file.patch
c6x-drop-pte_file.patch
cris-drop-_page_file-and-pte_file-related-helpers.patch
frv-drop-_page_file-and-pte_file-related-helpers.patch
hexagon-drop-_page_file-and-pte_file-related-helpers.patch
ia64-drop-_page_file-and-pte_file-related-helpers.patch
m32r-drop-_page_file-and-pte_file-related-helpers.patch
m68k-drop-_page_file-and-pte_file-related-helpers.patch
metag-drop-_page_file-and-pte_file-related-helpers.patch
microblaze-drop-_page_file-and-pte_file-related-helpers.patch
mips-drop-_page_file-and-pte_file-related-helpers.patch
mn10300-drop-_page_file-and-pte_file-related-helpers.patch
nios2-drop-_page_file-and-pte_file-related-helpers.patch
openrisc-drop-_page_file-and-pte_file-related-helpers.patch
parisc-drop-_page_file-and-pte_file-related-helpers.patch
powerpc-drop-_page_file-and-pte_file-related-helpers.patch
s390-drop-pte_file-related-helpers.patch
score-drop-_page_file-and-pte_file-related-helpers.patch
sh-drop-_page_file-and-pte_file-related-helpers.patch
sparc-drop-pte_file-related-helpers.patch
tile-drop-pte_file-related-helpers.patch
um-drop-_page_file-and-pte_file-related-helpers.patch
unicore32-drop-pte_file-related-helpers.patch
x86-drop-_page_file-and-pte_file-related-helpers.patch
xtensa-drop-_page_file-and-pte_file-related-helpers.patch
mm-memory-remove-vm_file-check-on-shared-writable-vmas.patch
mm-memory-merge-shared-writable-dirtying-branches-in-do_wp_page.patch
mm-add-fields-for-compound-destructor-and-order-into-struct-page.patch
mm-add-vm_bug_on_page-for-page_mapcount.patch
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