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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 20:37:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 20:37:50 -0700
commit10f2a2b0f68abf39c06cf519cbc1740fa50f900b (patch)
tree70b33e4437ae0d5ac92f56c60b048756bde7f3e4 /arch/x86/mm
parent8814011679d1a47d8b0158fc991727a5859471a0 (diff)
parentb40827fa7268fda8a62490728a61c2856f33830b (diff)
downloadop-kernel-dev-10f2a2b0f68abf39c06cf519cbc1740fa50f900b.zip
op-kernel-dev-10f2a2b0f68abf39c06cf519cbc1740fa50f900b.tar.gz
Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86-32, mm: Add an initial page table for core bootstrapping
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/init_32.c45
1 files changed, 0 insertions, 45 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 5d0a671..0e969f9 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -528,48 +528,6 @@ static void __init pagetable_init(void)
permanent_kmaps_init(pgd_base);
}
-#ifdef CONFIG_ACPI_SLEEP
-/*
- * ACPI suspend needs this for resume, because things like the intel-agp
- * driver might have split up a kernel 4MB mapping.
- */
-char swsusp_pg_dir[PAGE_SIZE]
- __attribute__ ((aligned(PAGE_SIZE)));
-
-static inline void save_pg_dir(void)
-{
- copy_page(swsusp_pg_dir, swapper_pg_dir);
-}
-#else /* !CONFIG_ACPI_SLEEP */
-static inline void save_pg_dir(void)
-{
-}
-#endif /* !CONFIG_ACPI_SLEEP */
-
-void zap_low_mappings(bool early)
-{
- int i;
-
- /*
- * Zap initial low-memory mappings.
- *
- * Note that "pgd_clear()" doesn't do it for
- * us, because pgd_clear() is a no-op on i386.
- */
- for (i = 0; i < KERNEL_PGD_BOUNDARY; i++) {
-#ifdef CONFIG_X86_PAE
- set_pgd(swapper_pg_dir+i, __pgd(1 + __pa(empty_zero_page)));
-#else
- set_pgd(swapper_pg_dir+i, __pgd(0));
-#endif
- }
-
- if (early)
- __flush_tlb();
- else
- flush_tlb_all();
-}
-
pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
EXPORT_SYMBOL_GPL(__supported_pte_mask);
@@ -882,9 +840,6 @@ void __init mem_init(void)
if (boot_cpu_data.wp_works_ok < 0)
test_wp_bit();
-
- save_pg_dir();
- zap_low_mappings(true);
}
#ifdef CONFIG_MEMORY_HOTPLUG
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