[PATCH 09/20] mm: Now that all old mmu_gather code is gone, remove the storage

From: Peter Zijlstra
Date: Fri Apr 01 2011 - 09:43:42 EST

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XXX fold all the mmu_gather rework patches into one for submission

Reported-by: Hugh Dickins <hughd@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
LKML-Reference: <new-submission>
---
arch/alpha/mm/init.c | 2 --
arch/arm/mm/mmu.c | 2 --
arch/avr32/mm/init.c | 2 --
arch/cris/mm/init.c | 2 --
arch/frv/mm/init.c | 2 --
arch/ia64/mm/init.c | 2 --
arch/m32r/mm/init.c | 2 --
arch/m68k/mm/init_mm.c | 2 --
arch/microblaze/mm/init.c | 2 --
arch/mips/mm/init.c | 2 --
arch/mn10300/mm/init.c | 2 --
arch/parisc/mm/init.c | 2 --
arch/s390/mm/pgtable.c | 1 -
arch/score/mm/init.c | 2 --
arch/sh/mm/init.c | 1 -
arch/sparc/mm/init_32.c | 2 --
arch/tile/mm/init.c | 2 --
arch/um/kernel/smp.c | 3 ---
arch/unicore32/mm/mmu.c | 2 --
arch/x86/mm/init.c | 2 --
arch/xtensa/mm/mmu.c | 2 --
21 files changed, 41 deletions(-)

Index: linux-2.6/arch/alpha/mm/init.c
===================================================================
--- linux-2.6.orig/arch/alpha/mm/init.c
+++ linux-2.6/arch/alpha/mm/init.c
@@ -32,8 +32,6 @@
#include <asm/console.h>
#include <asm/tlb.h>

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
extern void die_if_kernel(char *,struct pt_regs *,long);

static struct pcb_struct original_pcb;
Index: linux-2.6/arch/arm/mm/mmu.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/mmu.c
+++ linux-2.6/arch/arm/mm/mmu.c
@@ -31,8 +31,6 @@

#include "mm.h"

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
/*
* empty_zero_page is a special page that is used for
* zero-initialized data and COW.
Index: linux-2.6/arch/avr32/mm/init.c
===================================================================
--- linux-2.6.orig/arch/avr32/mm/init.c
+++ linux-2.6/arch/avr32/mm/init.c
@@ -25,8 +25,6 @@
#include <asm/setup.h>
#include <asm/sections.h>

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
pgd_t swapper_pg_dir[PTRS_PER_PGD] __page_aligned_data;

struct page *empty_zero_page;
Index: linux-2.6/arch/cris/mm/init.c
===================================================================
--- linux-2.6.orig/arch/cris/mm/init.c
+++ linux-2.6/arch/cris/mm/init.c
@@ -13,8 +13,6 @@
#include <linux/bootmem.h>
#include <asm/tlb.h>

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
unsigned long empty_zero_page;

extern char _stext, _edata, _etext; /* From linkerscript */
Index: linux-2.6/arch/frv/mm/init.c
===================================================================
--- linux-2.6.orig/arch/frv/mm/init.c
+++ linux-2.6/arch/frv/mm/init.c
@@ -41,8 +41,6 @@

#undef DEBUG

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
/*
* BAD_PAGE is the page that is used for page faults when linux
* is out-of-memory. Older versions of linux just did a
Index: linux-2.6/arch/ia64/mm/init.c
===================================================================
--- linux-2.6.orig/arch/ia64/mm/init.c
+++ linux-2.6/arch/ia64/mm/init.c
@@ -36,8 +36,6 @@
#include <asm/mca.h>
#include <asm/paravirt.h>

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
extern void ia64_tlb_init (void);

unsigned long MAX_DMA_ADDRESS = PAGE_OFFSET + 0x100000000UL;
Index: linux-2.6/arch/m32r/mm/init.c
===================================================================
--- linux-2.6.orig/arch/m32r/mm/init.c
+++ linux-2.6/arch/m32r/mm/init.c
@@ -35,8 +35,6 @@ extern char __init_begin, __init_end;

pgd_t swapper_pg_dir[1024];

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
/*
* Cache of MMU context last used.
*/
Index: linux-2.6/arch/microblaze/mm/init.c
===================================================================
--- linux-2.6.orig/arch/microblaze/mm/init.c
+++ linux-2.6/arch/microblaze/mm/init.c
@@ -32,8 +32,6 @@ unsigned int __page_offset;
EXPORT_SYMBOL(__page_offset);

#else
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
static int init_bootmem_done;
#endif /* CONFIG_MMU */

Index: linux-2.6/arch/mips/mm/init.c
===================================================================
--- linux-2.6.orig/arch/mips/mm/init.c
+++ linux-2.6/arch/mips/mm/init.c
@@ -64,8 +64,6 @@

#endif /* CONFIG_MIPS_MT_SMTC */

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
/*
* We have up to 8 empty zeroed pages so we can map one of the right colour
* when needed. This is necessary only on R4000 / R4400 SC and MC versions
Index: linux-2.6/arch/mn10300/mm/init.c
===================================================================
--- linux-2.6.orig/arch/mn10300/mm/init.c
+++ linux-2.6/arch/mn10300/mm/init.c
@@ -37,8 +37,6 @@
#include <asm/tlb.h>
#include <asm/sections.h>

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
unsigned long highstart_pfn, highend_pfn;

#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
Index: linux-2.6/arch/parisc/mm/init.c
===================================================================
--- linux-2.6.orig/arch/parisc/mm/init.c
+++ linux-2.6/arch/parisc/mm/init.c
@@ -31,8 +31,6 @@
#include <asm/mmzone.h>
#include <asm/sections.h>

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
extern int data_start;

#ifdef CONFIG_DISCONTIGMEM
Index: linux-2.6/arch/s390/mm/pgtable.c
===================================================================
--- linux-2.6.orig/arch/s390/mm/pgtable.c
+++ linux-2.6/arch/s390/mm/pgtable.c
@@ -36,7 +36,6 @@ struct rcu_table_freelist {
((PAGE_SIZE - sizeof(struct rcu_table_freelist)) \
/ sizeof(unsigned long))

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
static DEFINE_PER_CPU(struct rcu_table_freelist *, rcu_table_freelist);

static void __page_table_free(struct mm_struct *mm, unsigned long *table);
Index: linux-2.6/arch/score/mm/init.c
===================================================================
--- linux-2.6.orig/arch/score/mm/init.c
+++ linux-2.6/arch/score/mm/init.c
@@ -38,8 +38,6 @@
#include <asm/sections.h>
#include <asm/tlb.h>

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
unsigned long empty_zero_page;
EXPORT_SYMBOL_GPL(empty_zero_page);

Index: linux-2.6/arch/sh/mm/init.c
===================================================================
--- linux-2.6.orig/arch/sh/mm/init.c
+++ linux-2.6/arch/sh/mm/init.c
@@ -28,7 +28,6 @@
#include <asm/cache.h>
#include <asm/sizes.h>

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
pgd_t swapper_pg_dir[PTRS_PER_PGD];

void __init generic_mem_init(void)
Index: linux-2.6/arch/sparc/mm/init_32.c
===================================================================
--- linux-2.6.orig/arch/sparc/mm/init_32.c
+++ linux-2.6/arch/sparc/mm/init_32.c
@@ -37,8 +37,6 @@
#include <asm/prom.h>
#include <asm/leon.h>

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
unsigned long *sparc_valid_addr_bitmap;
EXPORT_SYMBOL(sparc_valid_addr_bitmap);

Index: linux-2.6/arch/tile/mm/init.c
===================================================================
--- linux-2.6.orig/arch/tile/mm/init.c
+++ linux-2.6/arch/tile/mm/init.c
@@ -60,8 +60,6 @@ unsigned long VMALLOC_RESERVE = CONFIG_V
EXPORT_SYMBOL(VMALLOC_RESERVE);
#endif

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
/* Create an L2 page table */
static pte_t * __init alloc_pte(void)
{
Index: linux-2.6/arch/um/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/um/kernel/smp.c
+++ linux-2.6/arch/um/kernel/smp.c
@@ -7,9 +7,6 @@
#include "asm/pgalloc.h"
#include "asm/tlb.h"

-/* For some reason, mmu_gathers are referenced when CONFIG_SMP is off. */
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
#ifdef CONFIG_SMP

#include "linux/sched.h"
Index: linux-2.6/arch/x86/mm/init.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/init.c
+++ linux-2.6/arch/x86/mm/init.c
@@ -16,8 +16,6 @@
#include <asm/tlb.h>
#include <asm/proto.h>

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
unsigned long __initdata pgt_buf_start;
unsigned long __meminitdata pgt_buf_end;
unsigned long __meminitdata pgt_buf_top;
Index: linux-2.6/arch/xtensa/mm/mmu.c
===================================================================
--- linux-2.6.orig/arch/xtensa/mm/mmu.c
+++ linux-2.6/arch/xtensa/mm/mmu.c
@@ -14,8 +14,6 @@
#include <asm/mmu_context.h>
#include <asm/page.h>

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
void __init paging_init(void)
{
memset(swapper_pg_dir, 0, PAGE_SIZE);
Index: linux-2.6/arch/unicore32/mm/mmu.c
===================================================================
--- linux-2.6.orig/arch/unicore32/mm/mmu.c
+++ linux-2.6/arch/unicore32/mm/mmu.c
@@ -30,8 +30,6 @@

#include "mm.h"

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
/*
* empty_zero_page is a special page that is used for
* zero-initialized data and COW.
Index: linux-2.6/arch/m68k/mm/init_mm.c
===================================================================
--- linux-2.6.orig/arch/m68k/mm/init_mm.c
+++ linux-2.6/arch/m68k/mm/init_mm.c
@@ -32,8 +32,6 @@
#include <asm/sections.h>
#include <asm/tlb.h>

-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
pg_data_t pg_data_map[MAX_NUMNODES];
EXPORT_SYMBOL(pg_data_map);

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Next message: Peter Zijlstra: "[PATCH 19/20] mm: Convert anon_vma->lock to a mutex"
Previous message: Peter Zijlstra: "[PATCH 07/20] ia64: mmu_gather rework"
In reply to: Peter Zijlstra: "[PATCH 07/20] ia64: mmu_gather rework"
Next in thread: Peter Zijlstra: "[PATCH 19/20] mm: Convert anon_vma->lock to a mutex"
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