From e82dd4d6472304495afa271b2f63b572868b23d9 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 21 Oct 2005 03:21:33 -0400
Subject: [PATCH] gfp_t: dma-mapping (ppc)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/ppc/kernel/dma-mapping.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch/ppc/kernel')

diff --git a/arch/ppc/kernel/dma-mapping.c b/arch/ppc/kernel/dma-mapping.c
index 8edee806dae..0f710d2baec 100644
--- a/arch/ppc/kernel/dma-mapping.c
+++ b/arch/ppc/kernel/dma-mapping.c
@@ -115,7 +115,7 @@ static struct vm_region consistent_head = {
 };
 
 static struct vm_region *
-vm_region_alloc(struct vm_region *head, size_t size, int gfp)
+vm_region_alloc(struct vm_region *head, size_t size, gfp_t gfp)
 {
 	unsigned long addr = head->vm_start, end = head->vm_end - size;
 	unsigned long flags;
@@ -173,7 +173,7 @@ static struct vm_region *vm_region_find(struct vm_region *head, unsigned long ad
  * virtual and bus address for that space.
  */
 void *
-__dma_alloc_coherent(size_t size, dma_addr_t *handle, int gfp)
+__dma_alloc_coherent(size_t size, dma_addr_t *handle, gfp_t gfp)
 {
 	struct page *page;
 	struct vm_region *c;
-- 
cgit v1.2.3-70-g09d2


From 872fec16d9a0ed3b75b8893aa217e49cca575ee5 Mon Sep 17 00:00:00 2001
From: Hugh Dickins <hugh@veritas.com>
Date: Sat, 29 Oct 2005 18:16:21 -0700
Subject: [PATCH] mm: init_mm without ptlock

First step in pushing down the page_table_lock.  init_mm.page_table_lock has
been used throughout the architectures (usually for ioremap): not to serialize
kernel address space allocation (that's usually vmlist_lock), but because
pud_alloc,pmd_alloc,pte_alloc_kernel expect caller holds it.

Reverse that: don't lock or unlock init_mm.page_table_lock in any of the
architectures; instead rely on pud_alloc,pmd_alloc,pte_alloc_kernel to take
and drop it when allocating a new one, to check lest a racing task already
did.  Similarly no page_table_lock in vmalloc's map_vm_area.

Some temporary ugliness in __pud_alloc and __pmd_alloc: since they also handle
user mms, which are converted only by a later patch, for now they have to lock
differently according to whether or not it's init_mm.

If sources get muddled, there's a danger that an arch source taking
init_mm.page_table_lock will be mixed with common source also taking it (or
neither take it).  So break the rules and make another change, which should
break the build for such a mismatch: remove the redundant mm arg from
pte_alloc_kernel (ppc64 scrapped its distinct ioremap_mm in 2.6.13).

Exceptions: arm26 used pte_alloc_kernel on user mm, now pte_alloc_map; ia64
used pte_alloc_map on init_mm, now pte_alloc_kernel; parisc had bad args to
pmd_alloc and pte_alloc_kernel in unused USE_HPPA_IOREMAP code; ppc64
map_io_page forgot to unlock on failure; ppc mmu_mapin_ram and ppc64 im_free
took page_table_lock for no good reason.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/alpha/mm/remap.c         |  6 +----
 arch/arm/mm/consistent.c      |  6 +----
 arch/arm/mm/ioremap.c         |  4 +--
 arch/arm26/mm/memc.c          |  3 ++-
 arch/cris/mm/ioremap.c        |  4 +--
 arch/frv/mm/dma-alloc.c       |  5 +---
 arch/i386/mm/ioremap.c        |  4 +--
 arch/ia64/mm/init.c           | 11 +++-----
 arch/m32r/mm/ioremap.c        |  4 +--
 arch/m68k/mm/kmap.c           |  2 +-
 arch/m68k/sun3x/dvma.c        |  2 +-
 arch/mips/mm/ioremap.c        |  4 +--
 arch/parisc/kernel/pci-dma.c  |  2 +-
 arch/parisc/mm/ioremap.c      |  6 ++---
 arch/ppc/kernel/dma-mapping.c |  6 +----
 arch/ppc/mm/4xx_mmu.c         |  4 ---
 arch/ppc/mm/pgtable.c         |  4 +--
 arch/ppc64/mm/imalloc.c       |  5 ----
 arch/ppc64/mm/init.c          |  4 +--
 arch/s390/mm/ioremap.c        |  4 +--
 arch/sh/mm/ioremap.c          |  4 +--
 arch/sh64/mm/ioremap.c        |  4 +--
 arch/x86_64/mm/ioremap.c      |  4 +--
 include/linux/mm.h            |  2 +-
 mm/memory.c                   | 60 +++++++++++++++++++------------------------
 mm/vmalloc.c                  |  4 +--
 26 files changed, 54 insertions(+), 114 deletions(-)

(limited to 'arch/ppc/kernel')

diff --git a/arch/alpha/mm/remap.c b/arch/alpha/mm/remap.c
index 19817ad3d89..a78356c3ead 100644
--- a/arch/alpha/mm/remap.c
+++ b/arch/alpha/mm/remap.c
@@ -2,7 +2,6 @@
 #include <asm/pgalloc.h>
 #include <asm/cacheflush.h>
 
-/* called with the page_table_lock held */
 static inline void 
 remap_area_pte(pte_t * pte, unsigned long address, unsigned long size, 
 	       unsigned long phys_addr, unsigned long flags)
@@ -31,7 +30,6 @@ remap_area_pte(pte_t * pte, unsigned long address, unsigned long size,
 	} while (address && (address < end));
 }
 
-/* called with the page_table_lock held */
 static inline int 
 remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size, 
 	       unsigned long phys_addr, unsigned long flags)
@@ -46,7 +44,7 @@ remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size,
 	if (address >= end)
 		BUG();
 	do {
-		pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
+		pte_t * pte = pte_alloc_kernel(pmd, address);
 		if (!pte)
 			return -ENOMEM;
 		remap_area_pte(pte, address, end - address, 
@@ -70,7 +68,6 @@ __alpha_remap_area_pages(unsigned long address, unsigned long phys_addr,
 	flush_cache_all();
 	if (address >= end)
 		BUG();
-	spin_lock(&init_mm.page_table_lock);
 	do {
 		pmd_t *pmd;
 		pmd = pmd_alloc(&init_mm, dir, address);
@@ -84,7 +81,6 @@ __alpha_remap_area_pages(unsigned long address, unsigned long phys_addr,
 		address = (address + PGDIR_SIZE) & PGDIR_MASK;
 		dir++;
 	} while (address && (address < end));
-	spin_unlock(&init_mm.page_table_lock);
 	return error;
 }
 
diff --git a/arch/arm/mm/consistent.c b/arch/arm/mm/consistent.c
index 82f4d5e27c5..47b0b767f08 100644
--- a/arch/arm/mm/consistent.c
+++ b/arch/arm/mm/consistent.c
@@ -397,8 +397,6 @@ static int __init consistent_init(void)
 	pte_t *pte;
 	int ret = 0;
 
-	spin_lock(&init_mm.page_table_lock);
-
 	do {
 		pgd = pgd_offset(&init_mm, CONSISTENT_BASE);
 		pmd = pmd_alloc(&init_mm, pgd, CONSISTENT_BASE);
@@ -409,7 +407,7 @@ static int __init consistent_init(void)
 		}
 		WARN_ON(!pmd_none(*pmd));
 
-		pte = pte_alloc_kernel(&init_mm, pmd, CONSISTENT_BASE);
+		pte = pte_alloc_kernel(pmd, CONSISTENT_BASE);
 		if (!pte) {
 			printk(KERN_ERR "%s: no pte tables\n", __func__);
 			ret = -ENOMEM;
@@ -419,8 +417,6 @@ static int __init consistent_init(void)
 		consistent_pte = pte;
 	} while (0);
 
-	spin_unlock(&init_mm.page_table_lock);
-
 	return ret;
 }
 
diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index 6fb1258df1b..0f128c28fee 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -75,7 +75,7 @@ remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size,
 
 	pgprot = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | L_PTE_WRITE | flags);
 	do {
-		pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
+		pte_t * pte = pte_alloc_kernel(pmd, address);
 		if (!pte)
 			return -ENOMEM;
 		remap_area_pte(pte, address, end - address, address + phys_addr, pgprot);
@@ -97,7 +97,6 @@ remap_area_pages(unsigned long start, unsigned long phys_addr,
 	phys_addr -= address;
 	dir = pgd_offset(&init_mm, address);
 	BUG_ON(address >= end);
-	spin_lock(&init_mm.page_table_lock);
 	do {
 		pmd_t *pmd = pmd_alloc(&init_mm, dir, address);
 		if (!pmd) {
@@ -114,7 +113,6 @@ remap_area_pages(unsigned long start, unsigned long phys_addr,
 		dir++;
 	} while (address && (address < end));
 
-	spin_unlock(&init_mm.page_table_lock);
 	flush_cache_vmap(start, end);
 	return err;
 }
diff --git a/arch/arm26/mm/memc.c b/arch/arm26/mm/memc.c
index 8e8a2bb2487..d6b008b8db7 100644
--- a/arch/arm26/mm/memc.c
+++ b/arch/arm26/mm/memc.c
@@ -92,7 +92,7 @@ pgd_t *get_pgd_slow(struct mm_struct *mm)
 	if (!new_pmd)
 		goto no_pmd;
 
-	new_pte = pte_alloc_kernel(mm, new_pmd, 0);
+	new_pte = pte_alloc_map(mm, new_pmd, 0);
 	if (!new_pte)
 		goto no_pte;
 
@@ -101,6 +101,7 @@ pgd_t *get_pgd_slow(struct mm_struct *mm)
 	init_pte = pte_offset(init_pmd, 0);
 
 	set_pte(new_pte, *init_pte);
+	pte_unmap(new_pte);
 
 	/*
 	 * the page table entries are zeroed
diff --git a/arch/cris/mm/ioremap.c b/arch/cris/mm/ioremap.c
index ebba11e270f..a92ac987758 100644
--- a/arch/cris/mm/ioremap.c
+++ b/arch/cris/mm/ioremap.c
@@ -52,7 +52,7 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned lo
 	if (address >= end)
 		BUG();
 	do {
-		pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
+		pte_t * pte = pte_alloc_kernel(pmd, address);
 		if (!pte)
 			return -ENOMEM;
 		remap_area_pte(pte, address, end - address, address + phys_addr, prot);
@@ -74,7 +74,6 @@ static int remap_area_pages(unsigned long address, unsigned long phys_addr,
 	flush_cache_all();
 	if (address >= end)
 		BUG();
-	spin_lock(&init_mm.page_table_lock);
 	do {
 		pud_t *pud;
 		pmd_t *pmd;
@@ -94,7 +93,6 @@ static int remap_area_pages(unsigned long address, unsigned long phys_addr,
 		address = (address + PGDIR_SIZE) & PGDIR_MASK;
 		dir++;
 	} while (address && (address < end));
-	spin_unlock(&init_mm.page_table_lock);
 	flush_tlb_all();
 	return error;
 }
diff --git a/arch/frv/mm/dma-alloc.c b/arch/frv/mm/dma-alloc.c
index cfc4f97490c..342823aad75 100644
--- a/arch/frv/mm/dma-alloc.c
+++ b/arch/frv/mm/dma-alloc.c
@@ -55,21 +55,18 @@ static int map_page(unsigned long va, unsigned long pa, pgprot_t prot)
 	pte_t *pte;
 	int err = -ENOMEM;
 
-	spin_lock(&init_mm.page_table_lock);
-
 	/* Use upper 10 bits of VA to index the first level map */
 	pge = pgd_offset_k(va);
 	pue = pud_offset(pge, va);
 	pme = pmd_offset(pue, va);
 
 	/* Use middle 10 bits of VA to index the second-level map */
-	pte = pte_alloc_kernel(&init_mm, pme, va);
+	pte = pte_alloc_kernel(pme, va);
 	if (pte != 0) {
 		err = 0;
 		set_pte(pte, mk_pte_phys(pa & PAGE_MASK, prot));
 	}
 
-	spin_unlock(&init_mm.page_table_lock);
 	return err;
 }
 
diff --git a/arch/i386/mm/ioremap.c b/arch/i386/mm/ioremap.c
index f379b8d6755..5d09de8d1c6 100644
--- a/arch/i386/mm/ioremap.c
+++ b/arch/i386/mm/ioremap.c
@@ -28,7 +28,7 @@ static int ioremap_pte_range(pmd_t *pmd, unsigned long addr,
 	unsigned long pfn;
 
 	pfn = phys_addr >> PAGE_SHIFT;
-	pte = pte_alloc_kernel(&init_mm, pmd, addr);
+	pte = pte_alloc_kernel(pmd, addr);
 	if (!pte)
 		return -ENOMEM;
 	do {
@@ -87,14 +87,12 @@ static int ioremap_page_range(unsigned long addr,
 	flush_cache_all();
 	phys_addr -= addr;
 	pgd = pgd_offset_k(addr);
-	spin_lock(&init_mm.page_table_lock);
 	do {
 		next = pgd_addr_end(addr, end);
 		err = ioremap_pud_range(pgd, addr, next, phys_addr+addr, flags);
 		if (err)
 			break;
 	} while (pgd++, addr = next, addr != end);
-	spin_unlock(&init_mm.page_table_lock);
 	flush_tlb_all();
 	return err;
 }
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 0063b2c5090..e3215ba64ff 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -275,26 +275,21 @@ put_kernel_page (struct page *page, unsigned long address, pgprot_t pgprot)
 
 	pgd = pgd_offset_k(address);		/* note: this is NOT pgd_offset()! */
 
-	spin_lock(&init_mm.page_table_lock);
 	{
 		pud = pud_alloc(&init_mm, pgd, address);
 		if (!pud)
 			goto out;
-
 		pmd = pmd_alloc(&init_mm, pud, address);
 		if (!pmd)
 			goto out;
-		pte = pte_alloc_map(&init_mm, pmd, address);
+		pte = pte_alloc_kernel(pmd, address);
 		if (!pte)
 			goto out;
-		if (!pte_none(*pte)) {
-			pte_unmap(pte);
+		if (!pte_none(*pte))
 			goto out;
-		}
 		set_pte(pte, mk_pte(page, pgprot));
-		pte_unmap(pte);
 	}
-  out:	spin_unlock(&init_mm.page_table_lock);
+  out:
 	/* no need for flush_tlb */
 	return page;
 }
diff --git a/arch/m32r/mm/ioremap.c b/arch/m32r/mm/ioremap.c
index 70c59055c19..a151849a605 100644
--- a/arch/m32r/mm/ioremap.c
+++ b/arch/m32r/mm/ioremap.c
@@ -67,7 +67,7 @@ remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size,
 	if (address >= end)
 		BUG();
 	do {
-		pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
+		pte_t * pte = pte_alloc_kernel(pmd, address);
 		if (!pte)
 			return -ENOMEM;
 		remap_area_pte(pte, address, end - address, address + phys_addr, flags);
@@ -90,7 +90,6 @@ remap_area_pages(unsigned long address, unsigned long phys_addr,
 	flush_cache_all();
 	if (address >= end)
 		BUG();
-	spin_lock(&init_mm.page_table_lock);
 	do {
 		pmd_t *pmd;
 		pmd = pmd_alloc(&init_mm, dir, address);
@@ -104,7 +103,6 @@ remap_area_pages(unsigned long address, unsigned long phys_addr,
 		address = (address + PGDIR_SIZE) & PGDIR_MASK;
 		dir++;
 	} while (address && (address < end));
-	spin_unlock(&init_mm.page_table_lock);
 	flush_tlb_all();
 	return error;
 }
diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c
index 5dcb3fa35ea..fe2383e36b0 100644
--- a/arch/m68k/mm/kmap.c
+++ b/arch/m68k/mm/kmap.c
@@ -201,7 +201,7 @@ void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
 			virtaddr += PTRTREESIZE;
 			size -= PTRTREESIZE;
 		} else {
-			pte_dir = pte_alloc_kernel(&init_mm, pmd_dir, virtaddr);
+			pte_dir = pte_alloc_kernel(pmd_dir, virtaddr);
 			if (!pte_dir) {
 				printk("ioremap: no mem for pte_dir\n");
 				return NULL;
diff --git a/arch/m68k/sun3x/dvma.c b/arch/m68k/sun3x/dvma.c
index 32e55adfeb8..117481e8630 100644
--- a/arch/m68k/sun3x/dvma.c
+++ b/arch/m68k/sun3x/dvma.c
@@ -116,7 +116,7 @@ inline int dvma_map_cpu(unsigned long kaddr,
 			pte_t *pte;
 			unsigned long end3;
 
-			if((pte = pte_alloc_kernel(&init_mm, pmd, vaddr)) == NULL) {
+			if((pte = pte_alloc_kernel(pmd, vaddr)) == NULL) {
 				ret = -ENOMEM;
 				goto out;
 			}
diff --git a/arch/mips/mm/ioremap.c b/arch/mips/mm/ioremap.c
index 9c44ca70bef..3101d1db559 100644
--- a/arch/mips/mm/ioremap.c
+++ b/arch/mips/mm/ioremap.c
@@ -55,7 +55,7 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address,
 	if (address >= end)
 		BUG();
 	do {
-		pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
+		pte_t * pte = pte_alloc_kernel(pmd, address);
 		if (!pte)
 			return -ENOMEM;
 		remap_area_pte(pte, address, end - address, address + phys_addr, flags);
@@ -77,7 +77,6 @@ static int remap_area_pages(unsigned long address, phys_t phys_addr,
 	flush_cache_all();
 	if (address >= end)
 		BUG();
-	spin_lock(&init_mm.page_table_lock);
 	do {
 		pud_t *pud;
 		pmd_t *pmd;
@@ -96,7 +95,6 @@ static int remap_area_pages(unsigned long address, phys_t phys_addr,
 		address = (address + PGDIR_SIZE) & PGDIR_MASK;
 		dir++;
 	} while (address && (address < end));
-	spin_unlock(&init_mm.page_table_lock);
 	flush_tlb_all();
 	return error;
 }
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index ae6213d7167..f94a02ef3d9 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -114,7 +114,7 @@ static inline int map_pmd_uncached(pmd_t * pmd, unsigned long vaddr,
 	if (end > PGDIR_SIZE)
 		end = PGDIR_SIZE;
 	do {
-		pte_t * pte = pte_alloc_kernel(&init_mm, pmd, vaddr);
+		pte_t * pte = pte_alloc_kernel(pmd, vaddr);
 		if (!pte)
 			return -ENOMEM;
 		if (map_pte_uncached(pte, orig_vaddr, end - vaddr, paddr_ptr))
diff --git a/arch/parisc/mm/ioremap.c b/arch/parisc/mm/ioremap.c
index f2df502cdae..5c7a1b3b932 100644
--- a/arch/parisc/mm/ioremap.c
+++ b/arch/parisc/mm/ioremap.c
@@ -52,7 +52,7 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned lo
 	if (address >= end)
 		BUG();
 	do {
-		pte_t * pte = pte_alloc_kernel(NULL, pmd, address);
+		pte_t * pte = pte_alloc_kernel(pmd, address);
 		if (!pte)
 			return -ENOMEM;
 		remap_area_pte(pte, address, end - address, address + phys_addr, flags);
@@ -75,10 +75,9 @@ static int remap_area_pages(unsigned long address, unsigned long phys_addr,
 	flush_cache_all();
 	if (address >= end)
 		BUG();
-	spin_lock(&init_mm.page_table_lock);
 	do {
 		pmd_t *pmd;
-		pmd = pmd_alloc(dir, address);
+		pmd = pmd_alloc(&init_mm, dir, address);
 		error = -ENOMEM;
 		if (!pmd)
 			break;
@@ -89,7 +88,6 @@ static int remap_area_pages(unsigned long address, unsigned long phys_addr,
 		address = (address + PGDIR_SIZE) & PGDIR_MASK;
 		dir++;
 	} while (address && (address < end));
-	spin_unlock(&init_mm.page_table_lock);
 	flush_tlb_all();
 	return error;
 }
diff --git a/arch/ppc/kernel/dma-mapping.c b/arch/ppc/kernel/dma-mapping.c
index 0f710d2baec..685fd0defe2 100644
--- a/arch/ppc/kernel/dma-mapping.c
+++ b/arch/ppc/kernel/dma-mapping.c
@@ -335,8 +335,6 @@ static int __init dma_alloc_init(void)
 	pte_t *pte;
 	int ret = 0;
 
-	spin_lock(&init_mm.page_table_lock);
-
 	do {
 		pgd = pgd_offset(&init_mm, CONSISTENT_BASE);
 		pmd = pmd_alloc(&init_mm, pgd, CONSISTENT_BASE);
@@ -347,7 +345,7 @@ static int __init dma_alloc_init(void)
 		}
 		WARN_ON(!pmd_none(*pmd));
 
-		pte = pte_alloc_kernel(&init_mm, pmd, CONSISTENT_BASE);
+		pte = pte_alloc_kernel(pmd, CONSISTENT_BASE);
 		if (!pte) {
 			printk(KERN_ERR "%s: no pte tables\n", __func__);
 			ret = -ENOMEM;
@@ -357,8 +355,6 @@ static int __init dma_alloc_init(void)
 		consistent_pte = pte;
 	} while (0);
 
-	spin_unlock(&init_mm.page_table_lock);
-
 	return ret;
 }
 
diff --git a/arch/ppc/mm/4xx_mmu.c b/arch/ppc/mm/4xx_mmu.c
index b7bcbc232f3..4d006aa1a0d 100644
--- a/arch/ppc/mm/4xx_mmu.c
+++ b/arch/ppc/mm/4xx_mmu.c
@@ -110,13 +110,11 @@ unsigned long __init mmu_mapin_ram(void)
 		pmd_t *pmdp;
 		unsigned long val = p | _PMD_SIZE_16M | _PAGE_HWEXEC | _PAGE_HWWRITE;
 
-		spin_lock(&init_mm.page_table_lock);
 		pmdp = pmd_offset(pgd_offset_k(v), v);
 		pmd_val(*pmdp++) = val;
 		pmd_val(*pmdp++) = val;
 		pmd_val(*pmdp++) = val;
 		pmd_val(*pmdp++) = val;
-		spin_unlock(&init_mm.page_table_lock);
 
 		v += LARGE_PAGE_SIZE_16M;
 		p += LARGE_PAGE_SIZE_16M;
@@ -127,10 +125,8 @@ unsigned long __init mmu_mapin_ram(void)
 		pmd_t *pmdp;
 		unsigned long val = p | _PMD_SIZE_4M | _PAGE_HWEXEC | _PAGE_HWWRITE;
 
-		spin_lock(&init_mm.page_table_lock);
 		pmdp = pmd_offset(pgd_offset_k(v), v);
 		pmd_val(*pmdp) = val;
-		spin_unlock(&init_mm.page_table_lock);
 
 		v += LARGE_PAGE_SIZE_4M;
 		p += LARGE_PAGE_SIZE_4M;
diff --git a/arch/ppc/mm/pgtable.c b/arch/ppc/mm/pgtable.c
index 43505b1fc5d..6ea9185fd12 100644
--- a/arch/ppc/mm/pgtable.c
+++ b/arch/ppc/mm/pgtable.c
@@ -280,18 +280,16 @@ map_page(unsigned long va, phys_addr_t pa, int flags)
 	pte_t *pg;
 	int err = -ENOMEM;
 
-	spin_lock(&init_mm.page_table_lock);
 	/* Use upper 10 bits of VA to index the first level map */
 	pd = pmd_offset(pgd_offset_k(va), va);
 	/* Use middle 10 bits of VA to index the second-level map */
-	pg = pte_alloc_kernel(&init_mm, pd, va);
+	pg = pte_alloc_kernel(pd, va);
 	if (pg != 0) {
 		err = 0;
 		set_pte_at(&init_mm, va, pg, pfn_pte(pa >> PAGE_SHIFT, __pgprot(flags)));
 		if (mem_init_done)
 			flush_HPTE(0, va, pmd_val(*pd));
 	}
-	spin_unlock(&init_mm.page_table_lock);
 	return err;
 }
 
diff --git a/arch/ppc64/mm/imalloc.c b/arch/ppc64/mm/imalloc.c
index c65b87b9275..f4ca29cf536 100644
--- a/arch/ppc64/mm/imalloc.c
+++ b/arch/ppc64/mm/imalloc.c
@@ -300,12 +300,7 @@ void im_free(void * addr)
 	for (p = &imlist ; (tmp = *p) ; p = &tmp->next) {
 		if (tmp->addr == addr) {
 			*p = tmp->next;
-
-			/* XXX: do we need the lock? */
-			spin_lock(&init_mm.page_table_lock);
 			unmap_vm_area(tmp);
-			spin_unlock(&init_mm.page_table_lock);
-
 			kfree(tmp);
 			up(&imlist_sem);
 			return;
diff --git a/arch/ppc64/mm/init.c b/arch/ppc64/mm/init.c
index be64b157afc..a45584b3440 100644
--- a/arch/ppc64/mm/init.c
+++ b/arch/ppc64/mm/init.c
@@ -155,7 +155,6 @@ static int map_io_page(unsigned long ea, unsigned long pa, int flags)
 	unsigned long vsid;
 
 	if (mem_init_done) {
-		spin_lock(&init_mm.page_table_lock);
 		pgdp = pgd_offset_k(ea);
 		pudp = pud_alloc(&init_mm, pgdp, ea);
 		if (!pudp)
@@ -163,12 +162,11 @@ static int map_io_page(unsigned long ea, unsigned long pa, int flags)
 		pmdp = pmd_alloc(&init_mm, pudp, ea);
 		if (!pmdp)
 			return -ENOMEM;
-		ptep = pte_alloc_kernel(&init_mm, pmdp, ea);
+		ptep = pte_alloc_kernel(pmdp, ea);
 		if (!ptep)
 			return -ENOMEM;
 		set_pte_at(&init_mm, ea, ptep, pfn_pte(pa >> PAGE_SHIFT,
 							  __pgprot(flags)));
-		spin_unlock(&init_mm.page_table_lock);
 	} else {
 		unsigned long va, vpn, hash, hpteg;
 
diff --git a/arch/s390/mm/ioremap.c b/arch/s390/mm/ioremap.c
index c6c39d868bc..0f6e9ecbefe 100644
--- a/arch/s390/mm/ioremap.c
+++ b/arch/s390/mm/ioremap.c
@@ -58,7 +58,7 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned lo
 	if (address >= end)
 		BUG();
 	do {
-		pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
+		pte_t * pte = pte_alloc_kernel(pmd, address);
 		if (!pte)
 			return -ENOMEM;
 		remap_area_pte(pte, address, end - address, address + phys_addr, flags);
@@ -80,7 +80,6 @@ static int remap_area_pages(unsigned long address, unsigned long phys_addr,
 	flush_cache_all();
 	if (address >= end)
 		BUG();
-	spin_lock(&init_mm.page_table_lock);
 	do {
 		pmd_t *pmd;
 		pmd = pmd_alloc(&init_mm, dir, address);
@@ -94,7 +93,6 @@ static int remap_area_pages(unsigned long address, unsigned long phys_addr,
 		address = (address + PGDIR_SIZE) & PGDIR_MASK;
 		dir++;
 	} while (address && (address < end));
-	spin_unlock(&init_mm.page_table_lock);
 	flush_tlb_all();
 	return 0;
 }
diff --git a/arch/sh/mm/ioremap.c b/arch/sh/mm/ioremap.c
index 9f490c2742f..e794e27a72f 100644
--- a/arch/sh/mm/ioremap.c
+++ b/arch/sh/mm/ioremap.c
@@ -57,7 +57,7 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address,
 	if (address >= end)
 		BUG();
 	do {
-		pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
+		pte_t * pte = pte_alloc_kernel(pmd, address);
 		if (!pte)
 			return -ENOMEM;
 		remap_area_pte(pte, address, end - address, address + phys_addr, flags);
@@ -79,7 +79,6 @@ int remap_area_pages(unsigned long address, unsigned long phys_addr,
 	flush_cache_all();
 	if (address >= end)
 		BUG();
-	spin_lock(&init_mm.page_table_lock);
 	do {
 		pmd_t *pmd;
 		pmd = pmd_alloc(&init_mm, dir, address);
@@ -93,7 +92,6 @@ int remap_area_pages(unsigned long address, unsigned long phys_addr,
 		address = (address + PGDIR_SIZE) & PGDIR_MASK;
 		dir++;
 	} while (address && (address < end));
-	spin_unlock(&init_mm.page_table_lock);
 	flush_tlb_all();
 	return error;
 }
diff --git a/arch/sh64/mm/ioremap.c b/arch/sh64/mm/ioremap.c
index f4003da556b..fb1866fa2c9 100644
--- a/arch/sh64/mm/ioremap.c
+++ b/arch/sh64/mm/ioremap.c
@@ -79,7 +79,7 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned lo
 		BUG();
 
 	do {
-		pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
+		pte_t * pte = pte_alloc_kernel(pmd, address);
 		if (!pte)
 			return -ENOMEM;
 		remap_area_pte(pte, address, end - address, address + phys_addr, flags);
@@ -101,7 +101,6 @@ static int remap_area_pages(unsigned long address, unsigned long phys_addr,
 	flush_cache_all();
 	if (address >= end)
 		BUG();
-	spin_lock(&init_mm.page_table_lock);
 	do {
 		pmd_t *pmd = pmd_alloc(&init_mm, dir, address);
 		error = -ENOMEM;
@@ -115,7 +114,6 @@ static int remap_area_pages(unsigned long address, unsigned long phys_addr,
 		address = (address + PGDIR_SIZE) & PGDIR_MASK;
 		dir++;
 	} while (address && (address < end));
-	spin_unlock(&init_mm.page_table_lock);
 	flush_tlb_all();
 	return 0;
 }
diff --git a/arch/x86_64/mm/ioremap.c b/arch/x86_64/mm/ioremap.c
index 6972df480d2..ecf7acb5db9 100644
--- a/arch/x86_64/mm/ioremap.c
+++ b/arch/x86_64/mm/ioremap.c
@@ -60,7 +60,7 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned lo
 	if (address >= end)
 		BUG();
 	do {
-		pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
+		pte_t * pte = pte_alloc_kernel(pmd, address);
 		if (!pte)
 			return -ENOMEM;
 		remap_area_pte(pte, address, end - address, address + phys_addr, flags);
@@ -105,7 +105,6 @@ static int remap_area_pages(unsigned long address, unsigned long phys_addr,
 	flush_cache_all();
 	if (address >= end)
 		BUG();
-	spin_lock(&init_mm.page_table_lock);
 	do {
 		pud_t *pud;
 		pud = pud_alloc(&init_mm, pgd, address);
@@ -119,7 +118,6 @@ static int remap_area_pages(unsigned long address, unsigned long phys_addr,
 		address = (address + PGDIR_SIZE) & PGDIR_MASK;
 		pgd++;
 	} while (address && (address < end));
-	spin_unlock(&init_mm.page_table_lock);
 	flush_tlb_all();
 	return error;
 }
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 89398032bc4..b9fa82b96d9 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -706,7 +706,7 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping,
 extern int vmtruncate(struct inode * inode, loff_t offset);
 extern pud_t *FASTCALL(__pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address));
 extern pmd_t *FASTCALL(__pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address));
-extern pte_t *FASTCALL(pte_alloc_kernel(struct mm_struct *mm, pmd_t *pmd, unsigned long address));
+extern pte_t *FASTCALL(pte_alloc_kernel(pmd_t *pmd, unsigned long address));
 extern pte_t *FASTCALL(pte_alloc_map(struct mm_struct *mm, pmd_t *pmd, unsigned long address));
 extern int install_page(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, struct page *page, pgprot_t prot);
 extern int install_file_pte(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, unsigned long pgoff, pgprot_t prot);
diff --git a/mm/memory.c b/mm/memory.c
index 692ad810263..95a4553c75f 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -307,28 +307,22 @@ out:
 	return pte_offset_map(pmd, address);
 }
 
-pte_t fastcall * pte_alloc_kernel(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
+pte_t fastcall * pte_alloc_kernel(pmd_t *pmd, unsigned long address)
 {
 	if (!pmd_present(*pmd)) {
 		pte_t *new;
 
-		spin_unlock(&mm->page_table_lock);
-		new = pte_alloc_one_kernel(mm, address);
-		spin_lock(&mm->page_table_lock);
+		new = pte_alloc_one_kernel(&init_mm, address);
 		if (!new)
 			return NULL;
 
-		/*
-		 * Because we dropped the lock, we should re-check the
-		 * entry, as somebody else could have populated it..
-		 */
-		if (pmd_present(*pmd)) {
+		spin_lock(&init_mm.page_table_lock);
+		if (pmd_present(*pmd))
 			pte_free_kernel(new);
-			goto out;
-		}
-		pmd_populate_kernel(mm, pmd, new);
+		else
+			pmd_populate_kernel(&init_mm, pmd, new);
+		spin_unlock(&init_mm.page_table_lock);
 	}
-out:
 	return pte_offset_kernel(pmd, address);
 }
 
@@ -2097,30 +2091,30 @@ int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 #ifndef __PAGETABLE_PUD_FOLDED
 /*
  * Allocate page upper directory.
- *
- * We've already handled the fast-path in-line, and we own the
- * page table lock.
+ * We've already handled the fast-path in-line.
  */
 pud_t fastcall *__pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
 {
 	pud_t *new;
 
-	spin_unlock(&mm->page_table_lock);
+	if (mm != &init_mm)		/* Temporary bridging hack */
+		spin_unlock(&mm->page_table_lock);
 	new = pud_alloc_one(mm, address);
-	spin_lock(&mm->page_table_lock);
-	if (!new)
+	if (!new) {
+		if (mm != &init_mm)	/* Temporary bridging hack */
+			spin_lock(&mm->page_table_lock);
 		return NULL;
+	}
 
-	/*
-	 * Because we dropped the lock, we should re-check the
-	 * entry, as somebody else could have populated it..
-	 */
+	spin_lock(&mm->page_table_lock);
 	if (pgd_present(*pgd)) {
 		pud_free(new);
 		goto out;
 	}
 	pgd_populate(mm, pgd, new);
  out:
+	if (mm == &init_mm)		/* Temporary bridging hack */
+		spin_unlock(&mm->page_table_lock);
 	return pud_offset(pgd, address);
 }
 #endif /* __PAGETABLE_PUD_FOLDED */
@@ -2128,24 +2122,22 @@ pud_t fastcall *__pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long addr
 #ifndef __PAGETABLE_PMD_FOLDED
 /*
  * Allocate page middle directory.
- *
- * We've already handled the fast-path in-line, and we own the
- * page table lock.
+ * We've already handled the fast-path in-line.
  */
 pmd_t fastcall *__pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
 {
 	pmd_t *new;
 
-	spin_unlock(&mm->page_table_lock);
+	if (mm != &init_mm)		/* Temporary bridging hack */
+		spin_unlock(&mm->page_table_lock);
 	new = pmd_alloc_one(mm, address);
-	spin_lock(&mm->page_table_lock);
-	if (!new)
+	if (!new) {
+		if (mm != &init_mm)	/* Temporary bridging hack */
+			spin_lock(&mm->page_table_lock);
 		return NULL;
+	}
 
-	/*
-	 * Because we dropped the lock, we should re-check the
-	 * entry, as somebody else could have populated it..
-	 */
+	spin_lock(&mm->page_table_lock);
 #ifndef __ARCH_HAS_4LEVEL_HACK
 	if (pud_present(*pud)) {
 		pmd_free(new);
@@ -2161,6 +2153,8 @@ pmd_t fastcall *__pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long addr
 #endif /* __ARCH_HAS_4LEVEL_HACK */
 
  out:
+	if (mm == &init_mm)		/* Temporary bridging hack */
+		spin_unlock(&mm->page_table_lock);
 	return pmd_offset(pud, address);
 }
 #endif /* __PAGETABLE_PMD_FOLDED */
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 5e912059879..54a90e83cb3 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -89,7 +89,7 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
 {
 	pte_t *pte;
 
-	pte = pte_alloc_kernel(&init_mm, pmd, addr);
+	pte = pte_alloc_kernel(pmd, addr);
 	if (!pte)
 		return -ENOMEM;
 	do {
@@ -147,14 +147,12 @@ int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages)
 
 	BUG_ON(addr >= end);
 	pgd = pgd_offset_k(addr);
-	spin_lock(&init_mm.page_table_lock);
 	do {
 		next = pgd_addr_end(addr, end);
 		err = vmap_pud_range(pgd, addr, next, prot, pages);
 		if (err)
 			break;
 	} while (pgd++, addr = next, addr != end);
-	spin_unlock(&init_mm.page_table_lock);
 	flush_cache_vmap((unsigned long) area->addr, end);
 	return err;
 }
-- 
cgit v1.2.3-70-g09d2


From dfb7dac3af623a68262536437af008ed6aba4d88 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sun, 30 Oct 2005 15:02:22 -0800
Subject: [PATCH] unify sys_ptrace prototype

Make sure we always return, as all syscalls should.  Also move the common
prototype to <linux/syscalls.h>

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/arm/kernel/ptrace.c               | 2 +-
 arch/arm26/kernel/ptrace.c             | 2 +-
 arch/frv/kernel/ptrace.c               | 2 +-
 arch/h8300/kernel/ptrace.c             | 2 +-
 arch/i386/kernel/ptrace.c              | 2 +-
 arch/ia64/ia32/sys_ia32.c              | 1 +
 arch/m32r/kernel/ptrace.c              | 2 +-
 arch/m68k/kernel/ptrace.c              | 2 +-
 arch/m68knommu/kernel/ptrace.c         | 2 +-
 arch/mips/kernel/ptrace.c              | 2 +-
 arch/ppc/kernel/ptrace.c               | 2 +-
 arch/ppc64/kernel/ptrace.c             | 2 +-
 arch/sh/kernel/ptrace.c                | 2 +-
 arch/sh64/kernel/ptrace.c              | 2 +-
 arch/um/include/sysdep-i386/syscalls.h | 1 -
 arch/v850/kernel/ptrace.c              | 2 +-
 arch/xtensa/kernel/ptrace.c            | 2 +-
 include/asm-arm/unistd.h               | 1 -
 include/asm-arm26/unistd.h             | 1 -
 include/asm-cris/unistd.h              | 1 -
 include/asm-h8300/unistd.h             | 1 -
 include/asm-i386/unistd.h              | 1 -
 include/asm-ia64/unistd.h              | 2 --
 include/asm-m32r/unistd.h              | 1 -
 include/asm-m68k/unistd.h              | 1 -
 include/asm-m68knommu/unistd.h         | 1 -
 include/asm-mips/unistd.h              | 1 -
 include/asm-ppc/unistd.h               | 1 -
 include/asm-ppc64/unistd.h             | 1 -
 include/asm-s390/unistd.h              | 1 -
 include/asm-sh/unistd.h                | 1 -
 include/asm-v850/unistd.h              | 1 -
 include/asm-x86_64/unistd.h            | 2 --
 include/linux/syscalls.h               | 1 +
 34 files changed, 17 insertions(+), 34 deletions(-)

(limited to 'arch/ppc/kernel')

diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index cd99b83f14c..9bd8609a292 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -782,7 +782,7 @@ static int do_ptrace(int request, struct task_struct *child, long addr, long dat
 	return ret;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret;
diff --git a/arch/arm26/kernel/ptrace.c b/arch/arm26/kernel/ptrace.c
index 8a52124de0e..cf7e977d18c 100644
--- a/arch/arm26/kernel/ptrace.c
+++ b/arch/arm26/kernel/ptrace.c
@@ -665,7 +665,7 @@ static int do_ptrace(int request, struct task_struct *child, long addr, long dat
 	return ret;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret;
diff --git a/arch/frv/kernel/ptrace.c b/arch/frv/kernel/ptrace.c
index cbe03cba9f0..cb335a14a31 100644
--- a/arch/frv/kernel/ptrace.c
+++ b/arch/frv/kernel/ptrace.c
@@ -106,7 +106,7 @@ void ptrace_enable(struct task_struct *child)
 	child->thread.frame0->__status |= REG__STATUS_STEP;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	unsigned long tmp;
diff --git a/arch/h8300/kernel/ptrace.c b/arch/h8300/kernel/ptrace.c
index 05c15e86977..a569fe4aa28 100644
--- a/arch/h8300/kernel/ptrace.c
+++ b/arch/h8300/kernel/ptrace.c
@@ -57,7 +57,7 @@ void ptrace_disable(struct task_struct *child)
 	h8300_disable_trace(child);
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret;
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c
index 7b6368bf897..efd11f09c99 100644
--- a/arch/i386/kernel/ptrace.c
+++ b/arch/i386/kernel/ptrace.c
@@ -354,7 +354,7 @@ ptrace_set_thread_area(struct task_struct *child,
 	return 0;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	struct user * dummy = NULL;
diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
index 3fa67ecebc8..dc282710421 100644
--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -36,6 +36,7 @@
 #include <linux/uio.h>
 #include <linux/nfs_fs.h>
 #include <linux/quota.h>
+#include <linux/syscalls.h>
 #include <linux/sunrpc/svc.h>
 #include <linux/nfsd/nfsd.h>
 #include <linux/nfsd/cache.h>
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index 124f7c1b775..078d2a0e71c 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -756,7 +756,7 @@ do_ptrace(long request, struct task_struct *child, long addr, long data)
 	return ret;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret;
diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c
index 8ed1b01a6a8..f7f1d2e5b90 100644
--- a/arch/m68k/kernel/ptrace.c
+++ b/arch/m68k/kernel/ptrace.c
@@ -121,7 +121,7 @@ void ptrace_disable(struct task_struct *child)
 	child->thread.work.syscall_trace = 0;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	unsigned long tmp;
diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c
index 9724e1cd82e..621d7b91ccf 100644
--- a/arch/m68knommu/kernel/ptrace.c
+++ b/arch/m68knommu/kernel/ptrace.c
@@ -101,7 +101,7 @@ void ptrace_disable(struct task_struct *child)
 	put_reg(child, PT_SR, tmp);
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret;
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index fcceab8f2e0..f1b0f3e1f95 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -174,7 +174,7 @@ int ptrace_setfpregs (struct task_struct *child, __u32 __user *data)
 	return 0;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret;
diff --git a/arch/ppc/kernel/ptrace.c b/arch/ppc/kernel/ptrace.c
index e7aee4108de..e2744b6879d 100644
--- a/arch/ppc/kernel/ptrace.c
+++ b/arch/ppc/kernel/ptrace.c
@@ -240,7 +240,7 @@ void ptrace_disable(struct task_struct *child)
 	clear_single_step(child);
 }
 
-int sys_ptrace(long request, long pid, long addr, long data)
+long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret = -EPERM;
diff --git a/arch/ppc64/kernel/ptrace.c b/arch/ppc64/kernel/ptrace.c
index b1c044ca575..b33073c3172 100644
--- a/arch/ppc64/kernel/ptrace.c
+++ b/arch/ppc64/kernel/ptrace.c
@@ -53,7 +53,7 @@ void ptrace_disable(struct task_struct *child)
 	clear_single_step(child);
 }
 
-int sys_ptrace(long request, long pid, long addr, long data)
+long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret = -EPERM;
diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c
index b28919b6568..1fbe5a428e3 100644
--- a/arch/sh/kernel/ptrace.c
+++ b/arch/sh/kernel/ptrace.c
@@ -80,7 +80,7 @@ void ptrace_disable(struct task_struct *child)
 	/* nothing to do.. */
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	struct user * dummy = NULL;
diff --git a/arch/sh64/kernel/ptrace.c b/arch/sh64/kernel/ptrace.c
index fd2000956da..71f2eec00b9 100644
--- a/arch/sh64/kernel/ptrace.c
+++ b/arch/sh64/kernel/ptrace.c
@@ -121,7 +121,7 @@ put_fpu_long(struct task_struct *task, unsigned long addr, unsigned long data)
 	return 0;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	extern void poke_real_address_q(unsigned long long addr, unsigned long long data);
diff --git a/arch/um/include/sysdep-i386/syscalls.h b/arch/um/include/sysdep-i386/syscalls.h
index a0d5b74d373..57bd79efbee 100644
--- a/arch/um/include/sysdep-i386/syscalls.h
+++ b/arch/um/include/sysdep-i386/syscalls.h
@@ -11,7 +11,6 @@ typedef long syscall_handler_t(struct pt_regs);
 /* Not declared on x86, incompatible declarations on x86_64, so these have
  * to go here rather than in sys_call_table.c
  */
-extern syscall_handler_t sys_ptrace;
 extern syscall_handler_t sys_rt_sigaction;
 
 extern syscall_handler_t old_mmap_i386;
diff --git a/arch/v850/kernel/ptrace.c b/arch/v850/kernel/ptrace.c
index 4726b87f5e5..d6077ff47d2 100644
--- a/arch/v850/kernel/ptrace.c
+++ b/arch/v850/kernel/ptrace.c
@@ -113,7 +113,7 @@ static int set_single_step (struct task_struct *t, int val)
 	return 1;
 }
 
-int sys_ptrace(long request, long pid, long addr, long data)
+long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int rval;
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 2659efdd4e9..14460743de0 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -45,7 +45,7 @@ void ptrace_disable(struct task_struct *child)
 	/* Nothing to do.. */
 }
 
-int sys_ptrace(long request, long pid, long addr, long data)
+long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret = -EPERM;
diff --git a/include/asm-arm/unistd.h b/include/asm-arm/unistd.h
index c49df635a80..d626e70fade 100644
--- a/include/asm-arm/unistd.h
+++ b/include/asm-arm/unistd.h
@@ -544,7 +544,6 @@ asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
 asmlinkage int sys_fork(struct pt_regs *regs);
 asmlinkage int sys_vfork(struct pt_regs *regs);
 asmlinkage int sys_pipe(unsigned long *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
 				const struct sigaction __user *act,
diff --git a/include/asm-arm26/unistd.h b/include/asm-arm26/unistd.h
index dfa0b0c30aa..be4c2fb9c04 100644
--- a/include/asm-arm26/unistd.h
+++ b/include/asm-arm26/unistd.h
@@ -480,7 +480,6 @@ asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
 asmlinkage int sys_fork(struct pt_regs *regs);
 asmlinkage int sys_vfork(struct pt_regs *regs);
 asmlinkage int sys_pipe(unsigned long *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
 				const struct sigaction __user *act,
diff --git a/include/asm-cris/unistd.h b/include/asm-cris/unistd.h
index 28232ad2ff3..156a34bfc58 100644
--- a/include/asm-cris/unistd.h
+++ b/include/asm-cris/unistd.h
@@ -367,7 +367,6 @@ asmlinkage int sys_fork(long r10, long r11, long r12, long r13,
 asmlinkage int sys_vfork(long r10, long r11, long r12, long r13,
 			long mof, long srp, struct pt_regs *regs);
 asmlinkage int sys_pipe(unsigned long __user *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
 				const struct sigaction __user *act,
diff --git a/include/asm-h8300/unistd.h b/include/asm-h8300/unistd.h
index 56a6401886f..56a4a5686c8 100644
--- a/include/asm-h8300/unistd.h
+++ b/include/asm-h8300/unistd.h
@@ -528,7 +528,6 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
 asmlinkage int sys_execve(char *name, char **argv, char **envp,
 			int dummy, ...);
 asmlinkage int sys_pipe(unsigned long *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
 				const struct sigaction __user *act,
diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h
index fbaf90a3968..0f92e78dfea 100644
--- a/include/asm-i386/unistd.h
+++ b/include/asm-i386/unistd.h
@@ -448,7 +448,6 @@ asmlinkage int sys_clone(struct pt_regs regs);
 asmlinkage int sys_fork(struct pt_regs regs);
 asmlinkage int sys_vfork(struct pt_regs regs);
 asmlinkage int sys_pipe(unsigned long __user *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 asmlinkage long sys_iopl(unsigned long unused);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
diff --git a/include/asm-ia64/unistd.h b/include/asm-ia64/unistd.h
index 3a0c6952465..6d96a67439b 100644
--- a/include/asm-ia64/unistd.h
+++ b/include/asm-ia64/unistd.h
@@ -383,8 +383,6 @@ struct sigaction;
 long sys_execve(char __user *filename, char __user * __user *argv,
 			   char __user * __user *envp, struct pt_regs *regs);
 asmlinkage long sys_pipe(void);
-asmlinkage long sys_ptrace(long request, pid_t pid,
-			   unsigned long addr, unsigned long data);
 asmlinkage long sys_rt_sigaction(int sig,
 				 const struct sigaction __user *act,
 				 struct sigaction __user *oact,
diff --git a/include/asm-m32r/unistd.h b/include/asm-m32r/unistd.h
index 8552d8f45ab..ac399e1f7bc 100644
--- a/include/asm-m32r/unistd.h
+++ b/include/asm-m32r/unistd.h
@@ -452,7 +452,6 @@ asmlinkage int sys_clone(struct pt_regs regs);
 asmlinkage int sys_fork(struct pt_regs regs);
 asmlinkage int sys_vfork(struct pt_regs regs);
 asmlinkage int sys_pipe(unsigned long __user *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
 				 const struct sigaction __user *act,
diff --git a/include/asm-m68k/unistd.h b/include/asm-m68k/unistd.h
index cbabde4f8a4..c2554bcd174 100644
--- a/include/asm-m68k/unistd.h
+++ b/include/asm-m68k/unistd.h
@@ -444,7 +444,6 @@ asmlinkage long sys_mmap2(
 			unsigned long fd, unsigned long pgoff);
 asmlinkage int sys_execve(char *name, char **argv, char **envp);
 asmlinkage int sys_pipe(unsigned long *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct pt_regs;
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
diff --git a/include/asm-m68knommu/unistd.h b/include/asm-m68knommu/unistd.h
index 84b6fa14459..5373988a7e5 100644
--- a/include/asm-m68knommu/unistd.h
+++ b/include/asm-m68knommu/unistd.h
@@ -504,7 +504,6 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
 			unsigned long fd, unsigned long pgoff);
 asmlinkage int sys_execve(char *name, char **argv, char **envp);
 asmlinkage int sys_pipe(unsigned long *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct pt_regs;
 int sys_request_irq(unsigned int,
 			irqreturn_t (*)(int, void *, struct pt_regs *),
diff --git a/include/asm-mips/unistd.h b/include/asm-mips/unistd.h
index c9eaf4c104d..89ea8b60e94 100644
--- a/include/asm-mips/unistd.h
+++ b/include/asm-mips/unistd.h
@@ -1177,7 +1177,6 @@ asmlinkage long sys_mmap2(
 			unsigned long fd, unsigned long pgoff);
 asmlinkage int sys_execve(nabi_no_regargs struct pt_regs regs);
 asmlinkage int sys_pipe(nabi_no_regargs struct pt_regs regs);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
 				const struct sigaction __user *act,
diff --git a/include/asm-ppc/unistd.h b/include/asm-ppc/unistd.h
index 3173ab3d2eb..404c143e643 100644
--- a/include/asm-ppc/unistd.h
+++ b/include/asm-ppc/unistd.h
@@ -469,7 +469,6 @@ int sys_fork(int p1, int p2, int p3, int p4, int p5, int p6,
 int sys_vfork(int p1, int p2, int p3, int p4, int p5, int p6,
 		struct pt_regs *regs);
 int sys_pipe(int __user *fildes);
-int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 long sys_rt_sigaction(int sig,
 		      const struct sigaction __user *act,
diff --git a/include/asm-ppc64/unistd.h b/include/asm-ppc64/unistd.h
index 977bc980c1a..6b5fcbadbc5 100644
--- a/include/asm-ppc64/unistd.h
+++ b/include/asm-ppc64/unistd.h
@@ -467,7 +467,6 @@ int sys_vfork(unsigned long p1, unsigned long p2, unsigned long p3,
 		unsigned long p4, unsigned long p5, unsigned long p6,
 		struct pt_regs *regs);
 int sys_pipe(int __user *fildes);
-int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 long sys_rt_sigaction(int sig, const struct sigaction __user *act,
 		      struct sigaction __user *oact, size_t sigsetsize);
diff --git a/include/asm-s390/unistd.h b/include/asm-s390/unistd.h
index 221e965da92..f97d92691f1 100644
--- a/include/asm-s390/unistd.h
+++ b/include/asm-s390/unistd.h
@@ -590,7 +590,6 @@ asmlinkage long sys_clone(struct pt_regs regs);
 asmlinkage long sys_fork(struct pt_regs regs);
 asmlinkage long sys_vfork(struct pt_regs regs);
 asmlinkage long sys_pipe(unsigned long __user *fildes);
-asmlinkage long sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
 				const struct sigaction __user *act,
diff --git a/include/asm-sh/unistd.h b/include/asm-sh/unistd.h
index ea89e8f223e..f2c8e14d1fd 100644
--- a/include/asm-sh/unistd.h
+++ b/include/asm-sh/unistd.h
@@ -503,7 +503,6 @@ asmlinkage int sys_vfork(unsigned long r4, unsigned long r5,
 asmlinkage int sys_pipe(unsigned long r4, unsigned long r5,
 			unsigned long r6, unsigned long r7,
 			struct pt_regs regs);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char *buf,
 				size_t count, long dummy, loff_t pos);
 asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char *buf,
diff --git a/include/asm-v850/unistd.h b/include/asm-v850/unistd.h
index 3b552096c0e..5a86f8e976e 100644
--- a/include/asm-v850/unistd.h
+++ b/include/asm-v850/unistd.h
@@ -452,7 +452,6 @@ unsigned long sys_mmap2(unsigned long addr, size_t len,
 struct pt_regs;
 int sys_execve (char *name, char **argv, char **envp, struct pt_regs *regs);
 int sys_pipe (int *fildes);
-int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
 				const struct sigaction __user *act,
diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h
index 11ba931cf82..3c494b65d33 100644
--- a/include/asm-x86_64/unistd.h
+++ b/include/asm-x86_64/unistd.h
@@ -780,8 +780,6 @@ asmlinkage long sys_pipe(int *fildes);
 #include <linux/types.h>
 #include <asm/ptrace.h>
 
-asmlinkage long sys_ptrace(long request, long pid,
-				unsigned long addr, long data);
 asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs);
 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on);
 struct sigaction;
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index a6f03e47373..c7007b1db91 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -491,6 +491,7 @@ asmlinkage long sys_nfsservctl(int cmd,
 asmlinkage long sys_syslog(int type, char __user *buf, int len);
 asmlinkage long sys_uselib(const char __user *library);
 asmlinkage long sys_ni_syscall(void);
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data);
 
 asmlinkage long sys_add_key(const char __user *_type,
 			    const char __user *_description,
-- 
cgit v1.2.3-70-g09d2


From ecea8d19c9f0ebd62ddaa07fc919ff4e4b820d99 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sun, 30 Oct 2005 15:03:00 -0800
Subject: [PATCH] jiffies_64 cleanup

Define jiffies_64 in kernel/timer.c rather than having 24 duplicated
defines in each architecture.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/alpha/kernel/time.c     | 4 ----
 arch/arm/kernel/time.c       | 4 ----
 arch/arm26/kernel/time.c     | 4 ----
 arch/cris/kernel/time.c      | 4 ----
 arch/frv/kernel/time.c       | 3 ---
 arch/h8300/kernel/time.c     | 4 ----
 arch/i386/kernel/time.c      | 4 ----
 arch/ia64/kernel/time.c      | 4 ----
 arch/m32r/kernel/time.c      | 4 ----
 arch/m68k/kernel/time.c      | 4 ----
 arch/m68knommu/kernel/time.c | 4 ----
 arch/mips/kernel/time.c      | 4 ----
 arch/parisc/kernel/time.c    | 4 ----
 arch/ppc/kernel/time.c       | 5 -----
 arch/ppc64/kernel/time.c     | 4 ----
 arch/s390/kernel/time.c      | 4 ----
 arch/sh/kernel/time.c        | 4 ----
 arch/sh64/kernel/time.c      | 2 --
 arch/sparc/kernel/time.c     | 4 ----
 arch/sparc64/kernel/time.c   | 4 ----
 arch/um/kernel/time_kern.c   | 4 ----
 arch/v850/kernel/time.c      | 4 ----
 arch/x86_64/kernel/time.c    | 4 ----
 arch/xtensa/kernel/time.c    | 3 ---
 kernel/timer.c               | 4 ++++
 25 files changed, 4 insertions(+), 93 deletions(-)

(limited to 'arch/ppc/kernel')

diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index 67be50b7d80..6b2921be190 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -55,10 +55,6 @@
 #include "proto.h"
 #include "irq_impl.h"
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 extern unsigned long wall_jiffies;	/* kernel/timer.c */
 
 static int set_rtc_mmss(unsigned long);
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 69449a818dc..fc4729106a3 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -36,10 +36,6 @@
 #include <asm/thread_info.h>
 #include <asm/mach/time.h>
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /*
  * Our system timer.
  */
diff --git a/arch/arm26/kernel/time.c b/arch/arm26/kernel/time.c
index e66aedd02fa..335525339ad 100644
--- a/arch/arm26/kernel/time.c
+++ b/arch/arm26/kernel/time.c
@@ -34,10 +34,6 @@
 #include <asm/irq.h>
 #include <asm/ioc.h>
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 extern unsigned long wall_jiffies;
 
 /* this needs a better home */
diff --git a/arch/cris/kernel/time.c b/arch/cris/kernel/time.c
index a2d99b4aedc..b863815de78 100644
--- a/arch/cris/kernel/time.c
+++ b/arch/cris/kernel/time.c
@@ -32,10 +32,6 @@
 #include <linux/init.h>
 #include <linux/profile.h>
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 int have_rtc;  /* used to remember if we have an RTC or not */;
 
 #define TICK_SIZE tick
diff --git a/arch/frv/kernel/time.c b/arch/frv/kernel/time.c
index f43b734482e..2e9741227b7 100644
--- a/arch/frv/kernel/time.c
+++ b/arch/frv/kernel/time.c
@@ -34,9 +34,6 @@
 
 extern unsigned long wall_jiffies;
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-EXPORT_SYMBOL(jiffies_64);
-
 unsigned long __nongprelbss __clkin_clock_speed_HZ;
 unsigned long __nongprelbss __ext_bus_clock_speed_HZ;
 unsigned long __nongprelbss __res_bus_clock_speed_HZ;
diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c
index af8c5d2057d..688a5100604 100644
--- a/arch/h8300/kernel/time.c
+++ b/arch/h8300/kernel/time.c
@@ -32,10 +32,6 @@
 
 #define	TICK_SIZE (tick_nsec / 1000)
 
-u64 jiffies_64;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /*
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick
diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c
index 46c35ec9137..07471bba2dc 100644
--- a/arch/i386/kernel/time.c
+++ b/arch/i386/kernel/time.c
@@ -74,10 +74,6 @@ int pit_latch_buggy;              /* extern */
 
 #include "do_timer.h"
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 unsigned int cpu_khz;	/* Detected as we calibrate the TSC */
 EXPORT_SYMBOL(cpu_khz);
 
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index 8b8a5a45b62..5b7e736f3b4 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -32,10 +32,6 @@
 
 extern unsigned long wall_jiffies;
 
-u64 jiffies_64 __cacheline_aligned_in_smp = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 #define TIME_KEEPER_ID	0	/* smp_processor_id() of time-keeper */
 
 #ifdef CONFIG_IA64_DEBUG_IRQ
diff --git a/arch/m32r/kernel/time.c b/arch/m32r/kernel/time.c
index 539c562cd54..2ebce2063fe 100644
--- a/arch/m32r/kernel/time.c
+++ b/arch/m32r/kernel/time.c
@@ -39,10 +39,6 @@ extern void send_IPI_allbutself(int, int);
 extern void smp_local_timer_interrupt(struct pt_regs *);
 #endif
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 extern unsigned long wall_jiffies;
 #define TICK_SIZE	(tick_nsec / 1000)
 
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 4ec95e3cb87..98e4b1adfa2 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -27,10 +27,6 @@
 #include <linux/timex.h>
 #include <linux/profile.h>
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 static inline int set_rtc_mmss(unsigned long nowtime)
 {
   if (mach_set_clock_mmss)
diff --git a/arch/m68knommu/kernel/time.c b/arch/m68knommu/kernel/time.c
index b17c1ecba96..b9d8abb4543 100644
--- a/arch/m68knommu/kernel/time.c
+++ b/arch/m68knommu/kernel/time.c
@@ -27,10 +27,6 @@
 
 #define	TICK_SIZE (tick_nsec / 1000)
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 extern unsigned long wall_jiffies;
 
 
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index a24651dfaab..787ed541d44 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -45,10 +45,6 @@
 
 #define TICK_SIZE	(tick_nsec / 1000)
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /*
  * forward reference
  */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index bc979e1abde..cded2568078 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -33,10 +33,6 @@
 
 #include <linux/timex.h>
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /* xtime and wall_jiffies keep wall-clock time */
 extern unsigned long wall_jiffies;
 
diff --git a/arch/ppc/kernel/time.c b/arch/ppc/kernel/time.c
index 22d7fd1e0ae..67797184f4e 100644
--- a/arch/ppc/kernel/time.c
+++ b/arch/ppc/kernel/time.c
@@ -66,11 +66,6 @@
 
 #include <asm/time.h>
 
-/* XXX false sharing with below? */
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 unsigned long disarm_decr[NR_CPUS];
 
 extern struct timezone sys_tz;
diff --git a/arch/ppc64/kernel/time.c b/arch/ppc64/kernel/time.c
index b56c6a324e1..ab565468578 100644
--- a/arch/ppc64/kernel/time.c
+++ b/arch/ppc64/kernel/time.c
@@ -68,10 +68,6 @@
 #include <asm/systemcfg.h>
 #include <asm/firmware.h>
 
-u64 jiffies_64 __cacheline_aligned_in_smp = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /* keep track of when we need to update the rtc */
 time_t last_rtc_update;
 extern int piranha_simulator;
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 2fd75da1549..9a1d95894f3 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -49,10 +49,6 @@
 
 #define TICK_SIZE tick
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 static ext_int_info_t ext_int_info_cc;
 static u64 init_timer_cc;
 static u64 jiffies_timer_cc;
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index 02ca69918d7..671b876416b 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -56,10 +56,6 @@ extern unsigned long wall_jiffies;
 #define TICK_SIZE (tick_nsec / 1000)
 DEFINE_SPINLOCK(tmu0_lock);
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /* XXX: Can we initialize this in a routine somewhere?  Dreamcast doesn't want
  * these routines anywhere... */
 #ifdef CONFIG_SH_RTC
diff --git a/arch/sh64/kernel/time.c b/arch/sh64/kernel/time.c
index 43e395a14f4..870fe5327e0 100644
--- a/arch/sh64/kernel/time.c
+++ b/arch/sh64/kernel/time.c
@@ -116,8 +116,6 @@
 
 extern unsigned long wall_jiffies;
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
 static unsigned long tmu_base, rtc_base;
 unsigned long cprc_base;
 
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index 279a62627c1..24814d58f9e 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -45,10 +45,6 @@
 
 extern unsigned long wall_jiffies;
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 DEFINE_SPINLOCK(rtc_lock);
 enum sparc_clock_type sp_clock_typ;
 DEFINE_SPINLOCK(mostek_lock);
diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c
index 3f08a32f51a..38c5525087a 100644
--- a/arch/sparc64/kernel/time.c
+++ b/arch/sparc64/kernel/time.c
@@ -55,10 +55,6 @@ unsigned long ds1287_regs = 0UL;
 
 extern unsigned long wall_jiffies;
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 static void __iomem *mstk48t08_regs;
 static void __iomem *mstk48t59_regs;
 
diff --git a/arch/um/kernel/time_kern.c b/arch/um/kernel/time_kern.c
index 4e08f7545d6..020ca79b8d3 100644
--- a/arch/um/kernel/time_kern.c
+++ b/arch/um/kernel/time_kern.c
@@ -22,10 +22,6 @@
 #include "mode.h"
 #include "os.h"
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 int hz(void)
 {
 	return(HZ);
diff --git a/arch/v850/kernel/time.c b/arch/v850/kernel/time.c
index ea3fd8844ff..c1e85c2aef6 100644
--- a/arch/v850/kernel/time.c
+++ b/arch/v850/kernel/time.c
@@ -26,10 +26,6 @@
 
 #include "mach.h"
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 #define TICK_SIZE	(tick_nsec / 1000)
 
 /*
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c
index 47d25ad0816..bd5ea09bfdf 100644
--- a/arch/x86_64/kernel/time.c
+++ b/arch/x86_64/kernel/time.c
@@ -42,10 +42,6 @@
 #include <asm/apic.h>
 #endif
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 #ifdef CONFIG_CPU_FREQ
 static void cpufreq_delayed_get(void);
 #endif
diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c
index 8e423d1335c..cb6e38ed2b1 100644
--- a/arch/xtensa/kernel/time.c
+++ b/arch/xtensa/kernel/time.c
@@ -29,9 +29,6 @@
 
 extern volatile unsigned long wall_jiffies;
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-EXPORT_SYMBOL(jiffies_64);
-
 spinlock_t rtc_lock = SPIN_LOCK_UNLOCKED;
 EXPORT_SYMBOL(rtc_lock);
 
diff --git a/kernel/timer.c b/kernel/timer.c
index 562d53eabb4..fd74268d866 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -46,6 +46,10 @@ static void time_interpolator_update(long delta_nsec);
 #define time_interpolator_update(x)
 #endif
 
+u64 jiffies_64 __cacheline_aligned_in_smp = INITIAL_JIFFIES;
+
+EXPORT_SYMBOL(jiffies_64);
+
 /*
  * per-CPU timer vector definitions:
  */
-- 
cgit v1.2.3-70-g09d2