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authorLinus Torvalds <torvalds@linux-foundation.org>2008-02-01 10:15:32 +1100
committerLinus Torvalds <torvalds@linux-foundation.org>2008-02-01 10:15:32 +1100
commitfcc3ff4f9d695a80dc6e6058e0d631a3026ed4c3 (patch)
tree050a81468f8644cfb0f3c07a140456c136301a30 /arch/x86/mm/pgtable_32.c
parente95035c61a4c3dae1aa543a5bf5b39846daca061 (diff)
parent62152d0ea7012382cd814c7b361b4ef2029f26e6 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: asm-generic/tlb.h: build fix x86: uninline __pte_free_tlb() and __pmd_free_tlb() x86: fix small sparse warning x86: fix sparse warning in kernel/scx200_32.c x86: early_ioremap_reset fix 2 x86: c_p_a clflush_cache_range fix x86: change_page_attr_clear fix x86: fix sparse warnings in intel_cacheinfo.c
Diffstat (limited to 'arch/x86/mm/pgtable_32.c')
-rw-r--r--arch/x86/mm/pgtable_32.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index 2ae5999a795..cb3aa470249 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -376,3 +376,26 @@ void check_pgt_cache(void)
{
quicklist_trim(0, pgd_dtor, 25, 16);
}
+
+void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
+{
+ paravirt_release_pt(page_to_pfn(pte));
+ tlb_remove_page(tlb, pte);
+}
+
+#ifdef CONFIG_X86_PAE
+
+void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
+{
+ /* This is called just after the pmd has been detached from
+ the pgd, which requires a full tlb flush to be recognized
+ by the CPU. Rather than incurring multiple tlb flushes
+ while the address space is being pulled down, make the tlb
+ gathering machinery do a full flush when we're done. */
+ tlb->fullmm = 1;
+
+ paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT);
+ tlb_remove_page(tlb, virt_to_page(pmd));
+}
+
+#endif