diff options
| author | Hugh Dickins <hugh@veritas.com> | 2005-04-19 13:29:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org.(none)> | 2005-04-19 13:29:17 -0700 |
| commit | 8f6c99c11ae63ce887686f3e51c412cc4d8d8a7d (patch) | |
| tree | 4c3f29ce21f2a69f9105581c95e07de5bc5bb7aa /include/asm-generic | |
| parent | 3bf5ee95648c694bac4d13529563c230cd4fe5f2 (diff) | |
[PATCH] freepgt: remove arch pgd_addr_end
ia64 and sparc64 hurriedly had to introduce their own variants of
pgd_addr_end, to leapfrog over the holes in their virtual address spaces which
the final clear_page_range suddenly presented when converted from pgd_index to
pgd_addr_end. But now that free_pgtables respects the vma list, those holes
are never presented, and the arch variants can go.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/pgtable.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index a3b28710d56c..1f4ec7b70270 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -140,17 +140,15 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres #endif /* - * When walking page tables, get the address of the next boundary, or - * the end address of the range if that comes earlier. Although end might - * wrap to 0 only in clear_page_range, __boundary may wrap to 0 throughout. + * When walking page tables, get the address of the next boundary, + * or the end address of the range if that comes earlier. Although no + * vma end wraps to 0, rounded up __boundary may wrap to 0 throughout. */ -#ifndef pgd_addr_end #define pgd_addr_end(addr, end) \ ({ unsigned long __boundary = ((addr) + PGDIR_SIZE) & PGDIR_MASK; \ (__boundary - 1 < (end) - 1)? __boundary: (end); \ }) -#endif #ifndef pud_addr_end #define pud_addr_end(addr, end) \ |