x86: rename PTE_MASK to PTE_PFN_MASK
Rusty, in his peevish way, complained that macros defining constants
should have a name which somewhat accurately reflects the actual
purpose of the constant.
Aside from the fact that PTE_MASK gives no clue as to what's actually
being masked, and is misleadingly similar to the functionally entirely
different PMD_MASK, PUD_MASK and PGD_MASK, I don't really see what the
problem is.
But if this patch silences the incessent noise, then it will have
achieved its goal (TODO: write test-case).
Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h
index c93dbb6..105057f 100644
--- a/include/asm-x86/pgtable-3level.h
+++ b/include/asm-x86/pgtable-3level.h
@@ -25,7 +25,7 @@
static inline int pud_bad(pud_t pud)
{
- return (pud_val(pud) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER)) != 0;
+ return (pud_val(pud) & ~(PTE_PFN_MASK | _KERNPG_TABLE | _PAGE_USER)) != 0;
}
static inline int pud_present(pud_t pud)
@@ -120,9 +120,9 @@
write_cr3(pgd);
}
-#define pud_page(pud) ((struct page *) __va(pud_val(pud) & PTE_MASK))
+#define pud_page(pud) ((struct page *) __va(pud_val(pud) & PTE_PFN_MASK))
-#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PTE_MASK))
+#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PTE_PFN_MASK))
/* Find an entry in the second-level page table.. */
@@ -160,7 +160,7 @@
static inline unsigned long pte_pfn(pte_t pte)
{
- return (pte_val(pte) & PTE_MASK) >> PAGE_SHIFT;
+ return (pte_val(pte) & PTE_PFN_MASK) >> PAGE_SHIFT;
}
/*