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Subjectforget_pte()
# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
# ChangeSet 1.656 -> 1.657
# mm/memory.c 1.70 -> 1.71
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 02/06/01 wli@holomorphy.com 1.657
# memory.c:
# Fix stale comment around forget_pte() and change to a #define in order to get accurate line numbers for BUG(), also using BUG_ON().
# --------------------------------------------
#
diff -Nru a/mm/memory.c b/mm/memory.c
--- a/mm/memory.c Sat Jun 1 09:35:40 2002
+++ b/mm/memory.c Sat Jun 1 09:35:40 2002
@@ -309,15 +309,12 @@
}

/*
- * Return indicates whether a page was freed so caller can adjust rss
+ * bug check to be sure pte's are unmapped when no longer used
*/
-static inline void forget_pte(pte_t page)
-{
- if (!pte_none(page)) {
- printk("forget_pte: old mapping existed!\n");
- BUG();
- }
-}
+#define forget_pte(pte) \
+ do { \
+ BUG_ON(!pte_none(pte)); \
+ } while (0)

static void zap_pte_range(mmu_gather_t *tlb, pmd_t * pmd, unsigned long address, unsigned long size)
{
-
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