diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 3cafd87..437778c 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -79,8 +79,6 @@
 	PG_active,
 	PG_slab,
 	PG_owner_priv_1,	/* Owner use. If pagecache, fs may use*/
-	PG_checked = PG_owner_priv_1, /* Used by some filesystems */
-	PG_pinned = PG_owner_priv_1, /* Xen pinned pagetable */
 	PG_arch_1,
 	PG_reserved,
 	PG_private,		/* If pagecache, has fs-private data */
@@ -89,8 +87,6 @@
 	PG_swapcache,		/* Swap page: swp_entry_t in private */
 	PG_mappedtodisk,	/* Has blocks allocated on-disk */
 	PG_reclaim,		/* To be reclaimed asap */
-	/* PG_readahead is only used for file reads; PG_reclaim is only for writes */
-	PG_readahead = PG_reclaim, /* Reminder to do async read-ahead */
 	PG_buddy,		/* Page is free, on buddy lists */
 
 #if (BITS_PER_LONG > 32)
@@ -158,8 +154,8 @@
 PAGEFLAG(LRU, lru) __CLEARPAGEFLAG(LRU, lru)
 PAGEFLAG(Active, active) __CLEARPAGEFLAG(Active, active)
 __PAGEFLAG(Slab, slab)
-PAGEFLAG(Checked, checked)		/* Used by some filesystems */
-PAGEFLAG(Pinned, pinned) TESTSCFLAG(Pinned, pinned) /* Xen pagetable */
+PAGEFLAG(Checked, owner_priv_1)		/* Used by some filesystems */
+PAGEFLAG(Pinned, owner_priv_1) TESTSCFLAG(Pinned, owner_priv_1) /* Xen */
 PAGEFLAG(Reserved, reserved) __CLEARPAGEFLAG(Reserved, reserved)
 PAGEFLAG(Private, private) __CLEARPAGEFLAG(Private, private)
 	__SETPAGEFLAG(Private, private)
@@ -174,14 +170,14 @@
 
 /* PG_readahead is only used for file reads; PG_reclaim is only for writes */
 PAGEFLAG(Reclaim, reclaim) TESTCLEARFLAG(Reclaim, reclaim)
-PAGEFLAG(Readahead, readahead)		/* Reminder to do async read-ahead */
+PAGEFLAG(Readahead, reclaim)		/* Reminder to do async read-ahead */
 
 #ifdef CONFIG_HIGHMEM
 /*
  * Must use a macro here due to header dependency issues. page_zone() is not
  * available at this point.
  */
-#define PageHighMem(__p) is_highmem(page_zone(page))
+#define PageHighMem(__p) is_highmem(page_zone(__p))
 #else
 static inline int PageHighMem(struct page *page)
 {
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index af28e2c..e0fc3bab 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -632,7 +632,7 @@
 	if (PageReserved(page))
 		return 1;
 
-	page->flags &= ~(1 << PG_uptodate | 1 << PG_error | 1 << PG_readahead |
+	page->flags &= ~(1 << PG_uptodate | 1 << PG_error | 1 << PG_reclaim |
 			1 << PG_referenced | 1 << PG_arch_1 |
 			1 << PG_owner_priv_1 | 1 << PG_mappedtodisk);
 	set_page_private(page, 0);