Merge branch 'for-2.6.32' into for-2.6.33

3 files changed, 30 insertions, 23 deletions

diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c
index 97c1eca83cc2..752b362bf651 100644
--- a/arch/s390/lib/delay.c
+++ b/arch/s390/lib/delay.c
@@ -25,13 +25,13 @@ void __delay(unsigned long loops)
         asm volatile("0: brct %0,0b" : : "d" ((loops/2) + 1));
 }
 
-static void __udelay_disabled(unsigned long usecs)
+static void __udelay_disabled(unsigned long long usecs)
 {
         unsigned long mask, cr0, cr0_saved;
         u64 clock_saved;
 
         clock_saved = local_tick_disable();
-        set_clock_comparator(get_clock() + ((u64) usecs << 12));
+        set_clock_comparator(get_clock() + (usecs << 12));
         __ctl_store(cr0_saved, 0, 0);
         cr0 = (cr0_saved & 0xffff00e0) | 0x00000800;
         __ctl_load(cr0 , 0, 0);
@@ -46,20 +46,25 @@ static void __udelay_disabled(unsigned long usecs)
         set_clock_comparator(S390_lowcore.clock_comparator);
 }
 
-static void __udelay_enabled(unsigned long usecs)
+static void __udelay_enabled(unsigned long long usecs)
 {
         unsigned long mask;
-        u64 end, time;
+        u64 clock_saved;
+        u64 end;
 
         mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT | PSW_MASK_IO;
-        end = get_clock() + ((u64) usecs << 12);
+        end = get_clock() + (usecs << 12);
         do {
-                time = end < S390_lowcore.clock_comparator ?
-                        end : S390_lowcore.clock_comparator;
-                set_clock_comparator(time);
+                clock_saved = 0;
+                if (end < S390_lowcore.clock_comparator) {
+                        clock_saved = local_tick_disable();
+                        set_clock_comparator(end);
+                }
                 trace_hardirqs_on();
                 __load_psw_mask(mask);
                 local_irq_disable();
+                if (clock_saved)
+                        local_tick_enable(clock_saved);
         } while (get_clock() < end);
         set_clock_comparator(S390_lowcore.clock_comparator);
 }
@@ -67,7 +72,7 @@ static void __udelay_enabled(unsigned long usecs)
 /*
  * Waits for 'usecs' microseconds using the TOD clock comparator.
  */
-void __udelay(unsigned long usecs)
+void __udelay(unsigned long long usecs)
 {
         unsigned long flags;
 
@@ -101,11 +106,11 @@ EXPORT_SYMBOL(__udelay);
  * Simple udelay variant. To be used on startup and reboot
  * when the interrupt handler isn't working.
  */
-void udelay_simple(unsigned long usecs)
+void udelay_simple(unsigned long long usecs)
 {
         u64 end;
 
-        end = get_clock() + ((u64) usecs << 12);
+        end = get_clock() + (usecs << 12);
         while (get_clock() < end)
                 cpu_relax();
 }
diff --git a/arch/s390/lib/uaccess_mvcos.c b/arch/s390/lib/uaccess_mvcos.c
index 3f15aaf54855..58da3f461214 100644
--- a/arch/s390/lib/uaccess_mvcos.c
+++ b/arch/s390/lib/uaccess_mvcos.c
@@ -36,7 +36,7 @@ static size_t copy_from_user_mvcos(size_t size, const void __user *ptr, void *x)
         tmp1 = -4096UL;
         asm volatile(
                 "0: .insn ss,0xc80000000000,0(%0,%2),0(%1),0\n"
-                "   jz    7f\n"
+                "9: jz    7f\n"
                 "1:"ALR"  %0,%3\n"
                 "  "SLR"  %1,%3\n"
                 "  "SLR"  %2,%3\n"
@@ -47,7 +47,7 @@ static size_t copy_from_user_mvcos(size_t size, const void __user *ptr, void *x)
                 "  "CLR"  %0,%4\n"      /* copy crosses next page boundary? */
                 "   jnh   4f\n"
                 "3: .insn ss,0xc80000000000,0(%4,%2),0(%1),0\n"
-                "  "SLR"  %0,%4\n"
+                "10:"SLR"  %0,%4\n"
                 "  "ALR"  %2,%4\n"
                 "4:"LHI"  %4,-1\n"
                 "  "ALR"  %4,%0\n"      /* copy remaining size, subtract 1 */
@@ -61,7 +61,7 @@ static size_t copy_from_user_mvcos(size_t size, const void __user *ptr, void *x)
                 "   j     8f\n"
                 "7:"SLR"  %0,%0\n"
                 "8: \n"
-                EX_TABLE(0b,2b) EX_TABLE(3b,4b)
+                EX_TABLE(0b,2b) EX_TABLE(3b,4b) EX_TABLE(9b,2b) EX_TABLE(10b,4b)
                 : "+a" (size), "+a" (ptr), "+a" (x), "+a" (tmp1), "=a" (tmp2)
                 : "d" (reg0) : "cc", "memory");
         return size;
@@ -82,7 +82,7 @@ static size_t copy_to_user_mvcos(size_t size, void __user *ptr, const void *x)
         tmp1 = -4096UL;
         asm volatile(
                 "0: .insn ss,0xc80000000000,0(%0,%1),0(%2),0\n"
-                "   jz    4f\n"
+                "6: jz    4f\n"
                 "1:"ALR"  %0,%3\n"
                 "  "SLR"  %1,%3\n"
                 "  "SLR"  %2,%3\n"
@@ -93,11 +93,11 @@ static size_t copy_to_user_mvcos(size_t size, void __user *ptr, const void *x)
                 "  "CLR"  %0,%4\n"      /* copy crosses next page boundary? */
                 "   jnh   5f\n"
                 "3: .insn ss,0xc80000000000,0(%4,%1),0(%2),0\n"
-                "  "SLR"  %0,%4\n"
+                "7:"SLR"  %0,%4\n"
                 "   j     5f\n"
                 "4:"SLR"  %0,%0\n"
                 "5: \n"
-                EX_TABLE(0b,2b) EX_TABLE(3b,5b)
+                EX_TABLE(0b,2b) EX_TABLE(3b,5b) EX_TABLE(6b,2b) EX_TABLE(7b,5b)
                 : "+a" (size), "+a" (ptr), "+a" (x), "+a" (tmp1), "=a" (tmp2)
                 : "d" (reg0) : "cc", "memory");
         return size;
diff --git a/arch/s390/lib/uaccess_std.c b/arch/s390/lib/uaccess_std.c
index d2ffbadb51a7..07deaeee14c8 100644
--- a/arch/s390/lib/uaccess_std.c
+++ b/arch/s390/lib/uaccess_std.c
@@ -36,12 +36,12 @@ size_t copy_from_user_std(size_t size, const void __user *ptr, void *x)
         tmp1 = -256UL;
         asm volatile(
                 "0: mvcp  0(%0,%2),0(%1),%3\n"
-                "   jz    8f\n"
+                "10:jz    8f\n"
                 "1:"ALR"  %0,%3\n"
                 "   la    %1,256(%1)\n"
                 "   la    %2,256(%2)\n"
                 "2: mvcp  0(%0,%2),0(%1),%3\n"
-                "   jnz   1b\n"
+                "11:jnz   1b\n"
                 "   j     8f\n"
                 "3: la    %4,255(%1)\n" /* %4 = ptr + 255 */
                 "  "LHI"  %3,-4096\n"
@@ -50,7 +50,7 @@ size_t copy_from_user_std(size_t size, const void __user *ptr, void *x)
                 "  "CLR"  %0,%4\n"      /* copy crosses next page boundary? */
                 "   jnh   5f\n"
                 "4: mvcp  0(%4,%2),0(%1),%3\n"
-                "  "SLR"  %0,%4\n"
+                "12:"SLR"  %0,%4\n"
                 "  "ALR"  %2,%4\n"
                 "5:"LHI"  %4,-1\n"
                 "  "ALR"  %4,%0\n"      /* copy remaining size, subtract 1 */
@@ -65,6 +65,7 @@ size_t copy_from_user_std(size_t size, const void __user *ptr, void *x)
                 "8:"SLR"  %0,%0\n"
                 "9: \n"
                 EX_TABLE(0b,3b) EX_TABLE(2b,3b) EX_TABLE(4b,5b)
+                EX_TABLE(10b,3b) EX_TABLE(11b,3b) EX_TABLE(12b,5b)
                 : "+a" (size), "+a" (ptr), "+a" (x), "+a" (tmp1), "=a" (tmp2)
                 : : "cc", "memory");
         return size;
@@ -85,12 +86,12 @@ size_t copy_to_user_std(size_t size, void __user *ptr, const void *x)
         tmp1 = -256UL;
         asm volatile(
                 "0: mvcs  0(%0,%1),0(%2),%3\n"
-                "   jz    5f\n"
+                "7: jz    5f\n"
                 "1:"ALR"  %0,%3\n"
                 "   la    %1,256(%1)\n"
                 "   la    %2,256(%2)\n"
                 "2: mvcs  0(%0,%1),0(%2),%3\n"
-                "   jnz   1b\n"
+                "8: jnz   1b\n"
                 "   j     5f\n"
                 "3: la    %4,255(%1)\n" /* %4 = ptr + 255 */
                 "  "LHI"  %3,-4096\n"
@@ -99,11 +100,12 @@ size_t copy_to_user_std(size_t size, void __user *ptr, const void *x)
                 "  "CLR"  %0,%4\n"      /* copy crosses next page boundary? */
                 "   jnh   6f\n"
                 "4: mvcs  0(%4,%1),0(%2),%3\n"
-                "  "SLR"  %0,%4\n"
+                "9:"SLR"  %0,%4\n"
                 "   j     6f\n"
                 "5:"SLR"  %0,%0\n"
                 "6: \n"
                 EX_TABLE(0b,3b) EX_TABLE(2b,3b) EX_TABLE(4b,6b)
+                EX_TABLE(7b,3b) EX_TABLE(8b,3b) EX_TABLE(9b,6b)
                 : "+a" (size), "+a" (ptr), "+a" (x), "+a" (tmp1), "=a" (tmp2)
                 : : "cc", "memory");
         return size;