The patch titled
Subject: frv: drop _PAGE_FILE and pte_file()-related helpers
has been added to the -mm tree. Its filename is
frv-drop-_page_file-and-pte_file-related-helpers.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/frv-drop-_page_file-and-pte_file-related-helpers.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/frv-drop-_page_file-and-pte_file-related-helpers.patch
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------------------------------------------------------
From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Subject: frv: drop _PAGE_FILE and pte_file()-related helpers
We've replaced remap_file_pages(2) implementation with emulation. Nobody
creates non-linear mapping anymore.
This patch also increase number of bits availble for swap offset.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/frv/include/asm/pgtable.h | 29 ++++++-----------------------
1 file changed, 6 insertions(+), 23 deletions(-)
diff -puN arch/frv/include/asm/pgtable.h~frv-drop-_page_file-and-pte_file-related-helpers arch/frv/include/asm/pgtable.h
--- a/arch/frv/include/asm/pgtable.h~frv-drop-_page_file-and-pte_file-related-helpers
+++ a/arch/frv/include/asm/pgtable.h
@@ -62,10 +62,6 @@ typedef pte_t *pte_addr_t;
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
-#ifndef __ASSEMBLY__
-static inline int pte_file(pte_t pte) { return 0; }
-#endif
-
#define ZERO_PAGE(vaddr) ({ BUG(); NULL; })
#define swapper_pg_dir ((pgd_t *) NULL)
@@ -298,7 +294,6 @@ static inline pmd_t *pmd_offset(pud_t *d
#define _PAGE_RESERVED_MASK (xAMPRx_RESERVED8 | xAMPRx_RESERVED13)
-#define _PAGE_FILE 0x002 /* set:pagecache unset:swap */
#define _PAGE_PROTNONE 0x000 /* If not present */
#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
@@ -463,27 +458,15 @@ static inline pte_t pte_modify(pte_t pte
* Handle swap and file entries
* - the PTE is encoded in the following format:
* bit 0: Must be 0 (!_PAGE_PRESENT)
- * bit 1: Type: 0 for swap, 1 for file (_PAGE_FILE)
- * bits 2-7: Swap type
- * bits 8-31: Swap offset
- * bits 2-31: File pgoff
- */
-#define __swp_type(x) (((x).val >> 2) & 0x1f)
-#define __swp_offset(x) ((x).val >> 8)
-#define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 2) | ((offset) << 8) })
+ * bits 1-6: Swap type
+ * bits 7-31: Swap offset
+ */
+#define __swp_type(x) (((x).val >> 1) & 0x1f)
+#define __swp_offset(x) ((x).val >> 7)
+#define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 1) | ((offset) << 7) })
#define __pte_to_swp_entry(_pte) ((swp_entry_t) { (_pte).pte })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
-static inline int pte_file(pte_t pte)
-{
- return pte.pte & _PAGE_FILE;
-}
-
-#define PTE_FILE_MAX_BITS 29
-
-#define pte_to_pgoff(PTE) ((PTE).pte >> 2)
-#define pgoff_to_pte(off) __pte((off) << 2 | _PAGE_FILE)
-
/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
#define PageSkip(page) (0)
#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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