X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-x86_64%2Fpgalloc.h;h=21b7f3f993fd7dfe5f5523c460ff93cb8fa6c462;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=cc0b2d52b1bb1111441b0a87c8d11c2791a03338;hpb=6a77f38946aaee1cd85eeec6cf4229b204c15071;p=linux-2.6.git

diff --git a/include/asm-x86_64/pgalloc.h b/include/asm-x86_64/pgalloc.h
index cc0b2d52b..21b7f3f99 100644
--- a/include/asm-x86_64/pgalloc.h
+++ b/include/asm-x86_64/pgalloc.h
@@ -1,12 +1,18 @@
 #ifndef _X86_64_PGALLOC_H
 #define _X86_64_PGALLOC_H
 
-#include <asm/processor.h>
 #include <asm/fixmap.h>
 #include <asm/pda.h>
 #include <linux/threads.h>
 #include <linux/mm.h>
 
+#define arch_add_exec_range(mm, limit) \
+		do { (void)(mm), (void)(limit); } while (0)
+#define arch_flush_exec_range(mm) \
+		do { (void)(mm); } while (0)
+#define arch_remove_exec_range(mm, limit) \
+		do { (void)(mm), (void)(limit); } while (0)
+
 #define pmd_populate_kernel(mm, pmd, pte) \
 		set_pmd(pmd, __pmd(_PAGE_TABLE | __pa(pte)))
 #define pud_populate(mm, pud, pmd) \
@@ -19,12 +25,12 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *p
 	set_pmd(pmd, __pmd(_PAGE_TABLE | (page_to_pfn(pte) << PAGE_SHIFT)));
 }
 
-extern __inline__ pmd_t *get_pmd(void)
+static inline pmd_t *get_pmd(void)
 {
 	return (pmd_t *)get_zeroed_page(GFP_KERNEL);
 }
 
-extern __inline__ void pmd_free(pmd_t *pmd)
+static inline void pmd_free(pmd_t *pmd)
 {
 	BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
 	free_page((unsigned long)pmd);
@@ -46,12 +52,39 @@ static inline void pud_free (pud_t *pud)
 	free_page((unsigned long)pud);
 }
 
+static inline void pgd_list_add(pgd_t *pgd)
+{
+	struct page *page = virt_to_page(pgd);
+
+	spin_lock(&pgd_lock);
+	page->index = (pgoff_t)pgd_list;
+	if (pgd_list)
+		pgd_list->private = (unsigned long)&page->index;
+	pgd_list = page;
+	page->private = (unsigned long)&pgd_list;
+	spin_unlock(&pgd_lock);
+}
+
+static inline void pgd_list_del(pgd_t *pgd)
+{
+	struct page *next, **pprev, *page = virt_to_page(pgd);
+
+	spin_lock(&pgd_lock);
+	next = (struct page *)page->index;
+	pprev = (struct page **)page->private;
+	*pprev = next;
+	if (next)
+		next->private = (unsigned long)pprev;
+	spin_unlock(&pgd_lock);
+}
+
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
 	unsigned boundary;
 	pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
 	if (!pgd)
 		return NULL;
+	pgd_list_add(pgd);
 	/*
 	 * Copy kernel pointers in from init.
 	 * Could keep a freelist or slab cache of those because the kernel
@@ -68,6 +101,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 static inline void pgd_free(pgd_t *pgd)
 {
 	BUG_ON((unsigned long)pgd & (PAGE_SIZE-1));
+	pgd_list_del(pgd);
 	free_page((unsigned long)pgd);
 }
 
@@ -87,19 +121,20 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long add
 /* Should really implement gc for free page table pages. This could be
    done with a reference count in struct page. */
 
-extern __inline__ void pte_free_kernel(pte_t *pte)
+static inline void pte_free_kernel(pte_t *pte)
 {
 	BUG_ON((unsigned long)pte & (PAGE_SIZE-1));
 	free_page((unsigned long)pte); 
 }
 
-extern inline void pte_free(struct page *pte)
+static inline void pte_free(struct page *pte)
 {
 	__free_page(pte);
 } 
 
 #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
-#define __pmd_free_tlb(tlb,x)   pmd_free(x)
-#define __pud_free_tlb(tlb,x)   pud_free(x)
+
+#define __pmd_free_tlb(tlb,x)   tlb_remove_page((tlb),virt_to_page(x))
+#define __pud_free_tlb(tlb,x)   tlb_remove_page((tlb),virt_to_page(x))
 
 #endif /* _X86_64_PGALLOC_H */