x86: demacro asm-x86/pgalloc_32.h
Convert macros into inline functions, for better type-checking.
This patch required a little bit of fiddling with headers in order to
make __(pte|pmd)_free_tlb inline rather than macros.
asm-generic/tlb.h includes asm/pgalloc.h, though it doesn't directly
use any pgalloc definitions. I removed this include to avoid an
include cycle, but it may cause secondary compile failures by things
depending on the indirect inclusion; arch/x86/mm/hugetlbpage.c was one
such place; there may be others.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/asm-x86/pgalloc_32.h b/include/asm-x86/pgalloc_32.h
index fbc6357..3482c34 100644
--- a/include/asm-x86/pgalloc_32.h
+++ b/include/asm-x86/pgalloc_32.h
@@ -3,6 +3,8 @@
#include <linux/threads.h>
#include <linux/mm.h> /* for struct page */
+#include <asm/tlb.h>
+#include <asm-generic/tlb.h>
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
@@ -14,19 +16,20 @@
#define paravirt_release_pd(pfn) do { } while (0)
#endif
-#define pmd_populate_kernel(mm, pmd, pte) \
-do { \
- paravirt_alloc_pt(mm, __pa(pte) >> PAGE_SHIFT); \
- set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))); \
-} while (0)
+static inline void pmd_populate_kernel(struct mm_struct *mm,
+ pmd_t *pmd, pte_t *pte)
+{
+ paravirt_alloc_pt(mm, __pa(pte) >> PAGE_SHIFT);
+ set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
+}
-#define pmd_populate(mm, pmd, pte) \
-do { \
- paravirt_alloc_pt(mm, page_to_pfn(pte)); \
- set_pmd(pmd, __pmd(_PAGE_TABLE + \
- ((unsigned long long)page_to_pfn(pte) << \
- (unsigned long long) PAGE_SHIFT))); \
-} while (0)
+static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte)
+{
+ unsigned long pfn = page_to_pfn(pte);
+
+ paravirt_alloc_pt(mm, pfn);
+ set_pmd(pmd, __pmd(((pteval_t)pfn << PAGE_SHIFT) | _PAGE_TABLE));
+}
/*
* Allocate and free page tables.
@@ -48,20 +51,34 @@
}
-#define __pte_free_tlb(tlb,pte) \
-do { \
- paravirt_release_pt(page_to_pfn(pte)); \
- tlb_remove_page((tlb),(pte)); \
-} while (0)
+static inline 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
/*
* In the PAE case we free the pmds as part of the pgd.
*/
-#define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); })
-#define pmd_free(x) do { } while (0)
-#define __pmd_free_tlb(tlb,x) do { } while (0)
-#define pud_populate(mm, pmd, pte) BUG()
-#endif
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
+{
+ BUG();
+ return (pmd_t *)2;
+}
+
+static inline void pmd_free(pmd_t *pmd)
+{
+}
+
+static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
+{
+}
+
+static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+ BUG();
+}
+#endif /* CONFIG_X86_PAE */
#endif /* _I386_PGALLOC_H */