From: Hugh Dickins <hugh@veritas.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>,
Russell King <rmk@arm.linux.org.uk>,
linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 5/6] freepgt2: arch FIRST_USER_ADDRESS 0
Date: Thu, 7 Apr 2005 02:18:33 +0100 (BST) [thread overview]
Message-ID: <Pine.LNX.4.61.0504070216480.24723@goblin.wat.veritas.com> (raw)
In-Reply-To: <Pine.LNX.4.61.0504070204390.24723@goblin.wat.veritas.com>
Replace misleading definition of FIRST_USER_PGD_NR 0 by definition of
FIRST_USER_ADDRESS 0 in all the MMU architectures beyond arm and arm26.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
---
include/asm-alpha/pgtable.h | 2 +-
include/asm-cris/pgtable.h | 2 +-
include/asm-frv/pgtable.h | 2 +-
include/asm-i386/pgtable.h | 2 +-
include/asm-ia64/pgtable.h | 2 +-
include/asm-m32r/pgtable.h | 2 +-
include/asm-m68k/pgtable.h | 2 +-
include/asm-mips/pgtable-32.h | 2 +-
include/asm-mips/pgtable-64.h | 2 +-
include/asm-parisc/pgtable.h | 2 +-
include/asm-ppc/pgtable.h | 2 +-
include/asm-ppc64/pgtable.h | 2 +-
include/asm-s390/pgtable.h | 4 ++--
include/asm-sh/pgtable.h | 2 +-
include/asm-sh64/pgtable.h | 2 +-
include/asm-sparc/pgtable.h | 2 +-
include/asm-sparc64/pgtable.h | 2 +-
include/asm-um/pgtable-2level.h | 2 +-
include/asm-um/pgtable-3level.h | 2 +-
include/asm-x86_64/pgtable.h | 2 +-
20 files changed, 21 insertions(+), 21 deletions(-)
--- 2.6.12-rc2-mm1/include/asm-alpha/pgtable.h 2005-04-05 15:20:54.000000000 +0100
+++ linux/include/asm-alpha/pgtable.h 2005-04-05 18:59:00.000000000 +0100
@@ -42,7 +42,7 @@
#define PTRS_PER_PMD (1UL << (PAGE_SHIFT-3))
#define PTRS_PER_PGD (1UL << (PAGE_SHIFT-3))
#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
/* Number of pointers that fit on a page: this will go away. */
#define PTRS_PER_PAGE (1UL << (PAGE_SHIFT-3))
--- 2.6.12-rc2-mm1/include/asm-cris/pgtable.h 2005-04-05 15:20:55.000000000 +0100
+++ linux/include/asm-cris/pgtable.h 2005-04-05 18:59:00.000000000 +0100
@@ -76,7 +76,7 @@ extern void paging_init(void);
*/
#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
/* zero page used for uninitialized stuff */
#ifndef __ASSEMBLY__
--- 2.6.12-rc2-mm1/include/asm-frv/pgtable.h 2005-04-05 15:20:55.000000000 +0100
+++ linux/include/asm-frv/pgtable.h 2005-04-05 18:59:00.000000000 +0100
@@ -141,7 +141,7 @@ extern unsigned long empty_zero_page;
#define PTRS_PER_PTE 4096
#define USER_PGDS_IN_LAST_PML4 (TASK_SIZE / PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#define USER_PGD_PTRS (PAGE_OFFSET >> PGDIR_SHIFT)
#define KERNEL_PGD_PTRS (PTRS_PER_PGD - USER_PGD_PTRS)
--- 2.6.12-rc2-mm1/include/asm-i386/pgtable.h 2005-04-05 15:20:55.000000000 +0100
+++ linux/include/asm-i386/pgtable.h 2005-04-05 18:59:00.000000000 +0100
@@ -60,7 +60,7 @@ void paging_init(void);
#define PGDIR_MASK (~(PGDIR_SIZE-1))
#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#define USER_PGD_PTRS (PAGE_OFFSET >> PGDIR_SHIFT)
#define KERNEL_PGD_PTRS (PTRS_PER_PGD-USER_PGD_PTRS)
--- 2.6.12-rc2-mm1/include/asm-ia64/pgtable.h 2005-04-05 15:22:58.000000000 +0100
+++ linux/include/asm-ia64/pgtable.h 2005-04-05 18:59:00.000000000 +0100
@@ -93,7 +93,7 @@
#define PGDIR_MASK (~(PGDIR_SIZE-1))
#define PTRS_PER_PGD (1UL << (PAGE_SHIFT-3))
#define USER_PTRS_PER_PGD (5*PTRS_PER_PGD/8) /* regions 0-4 are user regions */
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
/*
* Definitions for second level:
--- 2.6.12-rc2-mm1/include/asm-m32r/pgtable.h 2005-04-05 15:20:56.000000000 +0100
+++ linux/include/asm-m32r/pgtable.h 2005-04-05 18:59:00.000000000 +0100
@@ -51,7 +51,7 @@ extern unsigned long empty_zero_page[102
#define PGDIR_MASK (~(PGDIR_SIZE - 1))
#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#ifndef __ASSEMBLY__
/* Just any arbitrary offset to the start of the vmalloc VM area: the
--- 2.6.12-rc2-mm1/include/asm-m68k/pgtable.h 2005-04-05 15:20:56.000000000 +0100
+++ linux/include/asm-m68k/pgtable.h 2005-04-05 18:59:00.000000000 +0100
@@ -61,7 +61,7 @@
#define PTRS_PER_PGD 128
#endif
#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
/* Virtual address region for use by kernel_map() */
#ifdef CONFIG_SUN3
--- 2.6.12-rc2-mm1/include/asm-mips/pgtable-32.h 2005-03-02 07:38:57.000000000 +0000
+++ linux/include/asm-mips/pgtable-32.h 2005-04-05 18:59:00.000000000 +0100
@@ -74,7 +74,7 @@ extern int add_temporary_entry(unsigned
#define PTRS_PER_PTE ((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t))
#define USER_PTRS_PER_PGD (0x80000000UL/PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#define VMALLOC_START KSEG2
--- 2.6.12-rc2-mm1/include/asm-mips/pgtable-64.h 2004-12-24 21:36:18.000000000 +0000
+++ linux/include/asm-mips/pgtable-64.h 2005-04-05 18:59:00.000000000 +0100
@@ -89,7 +89,7 @@
#define PTRS_PER_PTE ((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t))
#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#define VMALLOC_START XKSEG
#define VMALLOC_END \
--- 2.6.12-rc2-mm1/include/asm-parisc/pgtable.h 2005-04-05 15:20:57.000000000 +0100
+++ linux/include/asm-parisc/pgtable.h 2005-04-05 18:59:00.000000000 +0100
@@ -120,7 +120,7 @@
* pgd entries used up by user/kernel:
*/
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#ifndef __ASSEMBLY__
extern void *vmalloc_start;
--- 2.6.12-rc2-mm1/include/asm-ppc/pgtable.h 2005-04-05 15:20:57.000000000 +0100
+++ linux/include/asm-ppc/pgtable.h 2005-04-05 18:59:01.000000000 +0100
@@ -96,7 +96,7 @@ extern unsigned long ioremap_bot, iorema
#define PTRS_PER_PGD (1 << (32 - PGDIR_SHIFT))
#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#define USER_PGD_PTRS (PAGE_OFFSET >> PGDIR_SHIFT)
#define KERNEL_PGD_PTRS (PTRS_PER_PGD-USER_PGD_PTRS)
--- 2.6.12-rc2-mm1/include/asm-ppc64/pgtable.h 2005-04-05 15:22:59.000000000 +0100
+++ linux/include/asm-ppc64/pgtable.h 2005-04-05 18:59:01.000000000 +0100
@@ -41,7 +41,7 @@
#define PTRS_PER_PGD (1 << PGD_INDEX_SIZE)
#define USER_PTRS_PER_PGD (1024)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#define EADDR_SIZE (PTE_INDEX_SIZE + PMD_INDEX_SIZE + \
PGD_INDEX_SIZE + PAGE_SHIFT)
--- 2.6.12-rc2-mm1/include/asm-s390/pgtable.h 2005-04-05 15:20:57.000000000 +0100
+++ linux/include/asm-s390/pgtable.h 2005-04-05 18:59:01.000000000 +0100
@@ -95,14 +95,14 @@ extern char empty_zero_page[PAGE_SIZE];
# define USER_PTRS_PER_PGD 512
# define USER_PGD_PTRS 512
# define KERNEL_PGD_PTRS 512
-# define FIRST_USER_PGD_NR 0
#else /* __s390x__ */
# define USER_PTRS_PER_PGD 2048
# define USER_PGD_PTRS 2048
# define KERNEL_PGD_PTRS 2048
-# define FIRST_USER_PGD_NR 0
#endif /* __s390x__ */
+#define FIRST_USER_ADDRESS 0
+
#define pte_ERROR(e) \
printk("%s:%d: bad pte %p.\n", __FILE__, __LINE__, (void *) pte_val(e))
#define pmd_ERROR(e) \
--- 2.6.12-rc2-mm1/include/asm-sh/pgtable.h 2005-04-05 15:20:58.000000000 +0100
+++ linux/include/asm-sh/pgtable.h 2005-04-05 18:59:01.000000000 +0100
@@ -44,7 +44,7 @@ extern unsigned long empty_zero_page[102
#define PGDIR_MASK (~(PGDIR_SIZE-1))
#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#define PTE_PHYS_MASK 0x1ffff000
--- 2.6.12-rc2-mm1/include/asm-sh64/pgtable.h 2005-04-05 15:20:58.000000000 +0100
+++ linux/include/asm-sh64/pgtable.h 2005-04-05 18:59:01.000000000 +0100
@@ -238,7 +238,7 @@ static inline pmd_t * pmd_offset(pgd_t *
/* Round it up ! */
#define USER_PTRS_PER_PGD ((TASK_SIZE+PGDIR_SIZE-1)/PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#ifndef __ASSEMBLY__
#define VMALLOC_END 0xff000000
--- 2.6.12-rc2-mm1/include/asm-sparc/pgtable.h 2005-04-05 15:20:58.000000000 +0100
+++ linux/include/asm-sparc/pgtable.h 2005-04-05 18:59:01.000000000 +0100
@@ -63,7 +63,7 @@ BTFIXUPDEF_INT(page_kernel)
#define PTRS_PER_PMD BTFIXUP_SIMM13(ptrs_per_pmd)
#define PTRS_PER_PGD BTFIXUP_SIMM13(ptrs_per_pgd)
#define USER_PTRS_PER_PGD BTFIXUP_SIMM13(user_ptrs_per_pgd)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#define PTE_SIZE (PTRS_PER_PTE*4)
#define PAGE_NONE __pgprot(BTFIXUP_INT(page_none))
--- 2.6.12-rc2-mm1/include/asm-sparc64/pgtable.h 2005-04-05 15:22:59.000000000 +0100
+++ linux/include/asm-sparc64/pgtable.h 2005-04-05 18:59:01.000000000 +0100
@@ -78,7 +78,7 @@
#define PTRS_PER_PGD (1UL << PGDIR_BITS)
/* Kernel has a separate 44bit address space. */
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#define pte_ERROR(e) __builtin_trap()
#define pmd_ERROR(e) __builtin_trap()
--- 2.6.12-rc2-mm1/include/asm-um/pgtable-2level.h 2005-04-05 15:20:58.000000000 +0100
+++ linux/include/asm-um/pgtable-2level.h 2005-04-05 18:59:01.000000000 +0100
@@ -23,7 +23,7 @@
#define PTRS_PER_PTE 1024
#define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE)
#define PTRS_PER_PGD 1024
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#define pte_ERROR(e) \
printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), \
--- 2.6.12-rc2-mm1/include/asm-um/pgtable-3level.h 2005-04-05 15:20:58.000000000 +0100
+++ linux/include/asm-um/pgtable-3level.h 2005-04-05 18:59:01.000000000 +0100
@@ -31,7 +31,7 @@
#define PTRS_PER_PMD 512
#define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE)
#define PTRS_PER_PGD 512
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#define pte_ERROR(e) \
printk("%s:%d: bad pte %p(%016lx).\n", __FILE__, __LINE__, &(e), \
--- 2.6.12-rc2-mm1/include/asm-x86_64/pgtable.h 2005-04-05 15:20:58.000000000 +0100
+++ linux/include/asm-x86_64/pgtable.h 2005-04-05 18:59:01.000000000 +0100
@@ -114,7 +114,7 @@ extern inline void pgd_clear (pgd_t * pg
#define PGDIR_MASK (~(PGDIR_SIZE-1))
#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE)
-#define FIRST_USER_PGD_NR 0
+#define FIRST_USER_ADDRESS 0
#ifndef __ASSEMBLY__
#define MAXMEM 0x3fffffffffffUL
next prev parent reply other threads:[~2005-04-07 1:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-07 1:10 [PATCH 1/6] freepgt2: free_pgtables from FIRST_USER_ADDRESS Hugh Dickins
2005-04-07 1:13 ` [PATCH 2/6] freepgt2: sys_mincore ignore FIRST_USER_PGD_NR Hugh Dickins
2005-04-07 1:14 ` [PATCH 3/6] freepgt2: arm FIRST_USER_ADDRESS PAGE_SIZE Hugh Dickins
2005-04-07 1:16 ` [PATCH 4/6] freepgt2: arm26 " Hugh Dickins
2005-04-07 2:22 ` Ian Molton
2005-04-07 1:18 ` Hugh Dickins [this message]
2005-04-07 1:19 ` [PATCH 6/6] freepgt2: remove FIRST_USER_ADDRESS hack Hugh Dickins
2005-04-07 10:14 ` [PATCH 2/6] freepgt2: sys_mincore ignore FIRST_USER_PGD_NR David Howells
2005-04-07 14:31 ` Nick Piggin
2005-04-08 3:40 ` Hugh Dickins
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