4 files changed, 7 insertions, 10 deletions

diff --git a/include/asm-i386/mach-summit/mach_mpparse.h b/include/asm-i386/mach-summit/mach_mpparse.h
index 2b9e6d55bef1..1cce2b924a80 100644
--- a/include/asm-i386/mach-summit/mach_mpparse.h
+++ b/include/asm-i386/mach-summit/mach_mpparse.h
@@ -22,7 +22,6 @@ static inline void mpc_oem_pci_bus(struct mpc_config_bus *m,
 {
 }
 
-extern int usb_early_handoff;
 static inline int mps_oem_check(struct mp_config_table *mpc, char *oem, 
                 char *productid)
 {
@@ -32,7 +31,6 @@ static inline int mps_oem_check(struct mp_config_table *mpc, char *oem,
                          || !strncmp(productid, "RUTHLESS SMP", 12))){
                 use_cyclone = 1; /*enable cyclone-timer*/
                 setup_summit();
-                usb_early_handoff = 1;
                 return 1;
         }
         return 0;
@@ -46,7 +44,6 @@ static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id)
              || !strncmp(oem_table_id, "EXA", 3))){
                 use_cyclone = 1; /*enable cyclone-timer*/
                 setup_summit();
-                usb_early_handoff = 1;
                 return 1;
         }
         return 0;
diff --git a/include/asm-i386/mmzone.h b/include/asm-i386/mmzone.h
index 348fe3a4879d..620a90641ea8 100644
--- a/include/asm-i386/mmzone.h
+++ b/include/asm-i386/mmzone.h
@@ -88,12 +88,6 @@ static inline int pfn_to_nid(unsigned long pfn)
         __pgdat->node_start_pfn + __pgdat->node_spanned_pages;          \
 })
 
-#define local_mapnr(kvaddr)                                             \
-({                                                                      \
-        unsigned long __pfn = __pa(kvaddr) >> PAGE_SHIFT;               \
-        (__pfn - node_start_pfn(pfn_to_nid(__pfn)));                    \
-})
-
 /* XXX: FIXME -- wli */
 #define kern_addr_valid(kaddr)  (0)
 
diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h
index d101ac414f07..0e3ec809352d 100644
--- a/include/asm-i386/pgtable.h
+++ b/include/asm-i386/pgtable.h
@@ -203,7 +203,8 @@ extern unsigned long pg0[];
 #define pte_present(x)  ((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE))
 #define pte_clear(mm,addr,xp)   do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
 
-#define pmd_none(x)     (!pmd_val(x))
+/* To avoid harmful races, pmd_none(x) should check only the lower when PAE */
+#define pmd_none(x)     (!(unsigned long)pmd_val(x))
 #define pmd_present(x)  (pmd_val(x) & _PAGE_PRESENT)
 #define pmd_clear(xp)   do { set_pmd(xp, __pmd(0)); } while (0)
 #define pmd_bad(x)      ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
diff --git a/include/asm-i386/rwsem.h b/include/asm-i386/rwsem.h
index 7625a675852f..be4ab859238e 100644
--- a/include/asm-i386/rwsem.h
+++ b/include/asm-i386/rwsem.h
@@ -284,5 +284,10 @@ LOCK_PREFIX	"xadd %0,(%2)"
         return tmp+delta;
 }
 
+static inline int rwsem_is_locked(struct rw_semaphore *sem)
+{
+        return (sem->count != 0);
+}
+
 #endif /* __KERNEL__ */
 #endif /* _I386_RWSEM_H */