15 files changed, 42 insertions, 52 deletions

diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile
index 4c6ed96d5f7c..a9cd42e61828 100644
--- a/arch/x86_64/Makefile
+++ b/arch/x86_64/Makefile
@@ -86,16 +86,6 @@ install fdimage fdimage144 fdimage288: vmlinux
 archclean:
         $(Q)$(MAKE) $(clean)=$(boot)
 
-prepare: include/asm-$(ARCH)/offset.h
-
-arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
-                                   include/config/MARKER
-
-include/asm-$(ARCH)/offset.h: arch/$(ARCH)/kernel/asm-offsets.s
-        $(call filechk,gen-asm-offsets)
-
-CLEAN_FILES += include/asm-$(ARCH)/offset.h
-
 define archhelp
   echo  '* bzImage      - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
   echo  '  install      - Install kernel using'
diff --git a/arch/x86_64/ia32/ia32_ioctl.c b/arch/x86_64/ia32/ia32_ioctl.c
index d259f8a6f811..419758f19ca4 100644
--- a/arch/x86_64/ia32/ia32_ioctl.c
+++ b/arch/x86_64/ia32/ia32_ioctl.c
@@ -24,17 +24,26 @@
 static int tiocgdev(unsigned fd, unsigned cmd,  unsigned int __user *ptr) 
 { 
 
-        struct file *file = fget(fd);
+        struct file *file;
         struct tty_struct *real_tty;
+        int fput_needed, ret;
 
+        file = fget_light(fd, &fput_needed);
         if (!file)
                 return -EBADF;
+
+        ret = -EINVAL;
         if (file->f_op->ioctl != tty_ioctl)
-                return -EINVAL; 
+                goto out;
         real_tty = (struct tty_struct *)file->private_data;
         if (!real_tty)  
-                return -EINVAL; 
-        return put_user(new_encode_dev(tty_devnum(real_tty)), ptr); 
+                goto out;
+
+        ret = put_user(new_encode_dev(tty_devnum(real_tty)), ptr); 
+
+out:
+        fput_light(file, fput_needed);
+        return ret;
 } 
 
 #define RTC_IRQP_READ32 _IOR('p', 0x0b, unsigned int)    /* Read IRQ rate   */
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index f174083d5567..5244f803203d 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -6,7 +6,7 @@
 
 #include <asm/dwarf2.h>
 #include <asm/calling.h>
-#include <asm/offset.h>
+#include <asm/asm-offsets.h>
 #include <asm/current.h>
 #include <asm/errno.h>
 #include <asm/ia32_unistd.h>    
diff --git a/arch/x86_64/ia32/vsyscall-syscall.S b/arch/x86_64/ia32/vsyscall-syscall.S
index e2aaf3de8a42..b024965bb689 100644
--- a/arch/x86_64/ia32/vsyscall-syscall.S
+++ b/arch/x86_64/ia32/vsyscall-syscall.S
@@ -3,7 +3,7 @@
  */
 
 #include <asm/ia32_unistd.h>
-#include <asm/offset.h>
+#include <asm/asm-offsets.h>
 #include <asm/segment.h>
 
         .text
diff --git a/arch/x86_64/ia32/vsyscall-sysenter.S b/arch/x86_64/ia32/vsyscall-sysenter.S
index 8fb8e0ff3afa..71f3de586b56 100644
--- a/arch/x86_64/ia32/vsyscall-sysenter.S
+++ b/arch/x86_64/ia32/vsyscall-sysenter.S
@@ -3,7 +3,7 @@
  */
 
 #include <asm/ia32_unistd.h>
-#include <asm/offset.h>
+#include <asm/asm-offsets.h>
 
         .text
         .section .text.vsyscall,"ax"
diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c
index 116ac5f53dce..bb0ae18ec02b 100644
--- a/arch/x86_64/kernel/e820.c
+++ b/arch/x86_64/kernel/e820.c
@@ -567,7 +567,7 @@ unsigned long pci_mem_start = 0xaeedbabe;
  */
 __init void e820_setup_gap(void)
 {
-        unsigned long gapstart, gapsize;
+        unsigned long gapstart, gapsize, round;
         unsigned long last;
         int i;
         int found = 0;
@@ -604,14 +604,14 @@ __init void e820_setup_gap(void)
         }
 
         /*
-         * Start allocating dynamic PCI memory a bit into the gap,
-         * aligned up to the nearest megabyte.
-         *
-         * Question: should we try to pad it up a bit (do something
-         * like " + (gapsize >> 3)" in there too?). We now have the
-         * technology.
+         * See how much we want to round up: start off with
+         * rounding to the next 1MB area.
          */
-        pci_mem_start = (gapstart + 0xfffff) & ~0xfffff;
+        round = 0x100000;
+        while ((gapsize >> 4) > round)
+                round += round;
+        /* Fun with two's complement */
+        pci_mem_start = (gapstart + round) & -round;
 
         printk(KERN_INFO "Allocating PCI resources starting at %lx (gap: %lx:%lx)\n",
                 pci_mem_start, gapstart, gapsize);
diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
index be51dbe1f75e..3620508c8bd9 100644
--- a/arch/x86_64/kernel/entry.S
+++ b/arch/x86_64/kernel/entry.S
@@ -36,7 +36,7 @@
 #include <asm/errno.h>
 #include <asm/dwarf2.h>
 #include <asm/calling.h>
-#include <asm/offset.h>
+#include <asm/asm-offsets.h>
 #include <asm/msr.h>
 #include <asm/unistd.h>
 #include <asm/thread_info.h>
diff --git a/arch/x86_64/kernel/genapic_flat.c b/arch/x86_64/kernel/genapic_flat.c
index adc96282a9e2..6d57da96bf8c 100644
--- a/arch/x86_64/kernel/genapic_flat.c
+++ b/arch/x86_64/kernel/genapic_flat.c
@@ -78,8 +78,18 @@ static void flat_send_IPI_mask(cpumask_t cpumask, int vector)
 
 static void flat_send_IPI_allbutself(int vector)
 {
+#ifndef CONFIG_HOTPLUG_CPU
         if (((num_online_cpus()) - 1) >= 1)
                 __send_IPI_shortcut(APIC_DEST_ALLBUT, vector,APIC_DEST_LOGICAL);
+#else
+        cpumask_t allbutme = cpu_online_map;
+        int me = get_cpu(); /* Ensure we are not preempted when we clear */
+        cpu_clear(me, allbutme);
+
+        if (!cpus_empty(allbutme))
+                flat_send_IPI_mask(allbutme, vector);
+        put_cpu();
+#endif
 }
 
 static void flat_send_IPI_all(int vector)
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index 40e0aca088fb..5f1529be1237 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -1167,9 +1167,9 @@ void disable_IO_APIC(void)
         clear_IO_APIC();
 
         /*
-         * If the i82559 is routed through an IOAPIC
+         * If the i8259 is routed through an IOAPIC
          * Put that IOAPIC in virtual wire mode
-         * so legacy interrups can be delivered.
+         * so legacy interrupts can be delivered.
          */
         pin = find_isa_irq_pin(0, mp_ExtINT);
         if (pin != -1) {
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index 0511d8087910..9aec524be3eb 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -929,7 +929,7 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
         c->x86_num_cores = intel_num_cpu_cores(c);
 }
 
-void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c)
+static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c)
 {
         char *v = c->x86_vendor_id;
 
diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index 90aeccd15190..4fb34b5cb1f9 100644
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -894,23 +894,6 @@ static __init void disable_smp(void)
         cpu_set(0, cpu_core_map[0]);
 }
 
-/*
- * Handle user cpus=... parameter.
- */
-static __init void enforce_max_cpus(unsigned max_cpus)
-{
-        int i, k;
-        k = 0;
-        for (i = 0; i < NR_CPUS; i++) {
-                if (!cpu_possible(i))
-                        continue;
-                if (++k > max_cpus) {
-                        cpu_clear(i, cpu_possible_map);
-                        cpu_clear(i, cpu_present_map);
-                }
-        }
-}
-
 #ifdef CONFIG_HOTPLUG_CPU
 /*
  * cpu_possible_map should be static, it cannot change as cpu's
@@ -999,8 +982,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
         current_cpu_data = boot_cpu_data;
         current_thread_info()->cpu = 0;  /* needed? */
 
-        enforce_max_cpus(max_cpus);
-
 #ifdef CONFIG_HOTPLUG_CPU
         prefill_possible_map();
 #endif
diff --git a/arch/x86_64/kernel/suspend_asm.S b/arch/x86_64/kernel/suspend_asm.S
index 53f8e1659511..4d659e97df10 100644
--- a/arch/x86_64/kernel/suspend_asm.S
+++ b/arch/x86_64/kernel/suspend_asm.S
@@ -14,7 +14,7 @@
 #include <linux/linkage.h>
 #include <asm/segment.h>
 #include <asm/page.h>
-#include <asm/offset.h>
+#include <asm/asm-offsets.h>
 
 ENTRY(swsusp_arch_suspend)
 
diff --git a/arch/x86_64/lib/copy_user.S b/arch/x86_64/lib/copy_user.S
index bd556c804248..dfa358b05c89 100644
--- a/arch/x86_64/lib/copy_user.S
+++ b/arch/x86_64/lib/copy_user.S
@@ -7,7 +7,7 @@
 #define FIX_ALIGNMENT 1
                 
         #include <asm/current.h>
-        #include <asm/offset.h>
+        #include <asm/asm-offsets.h>
         #include <asm/thread_info.h>
         #include <asm/cpufeature.h>
 
diff --git a/arch/x86_64/lib/getuser.S b/arch/x86_64/lib/getuser.S
index f80bafee8669..3844d5e885a4 100644
--- a/arch/x86_64/lib/getuser.S
+++ b/arch/x86_64/lib/getuser.S
@@ -29,7 +29,7 @@
 #include <linux/linkage.h>
 #include <asm/page.h>
 #include <asm/errno.h>
-#include <asm/offset.h>
+#include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
 
         .text
diff --git a/arch/x86_64/lib/putuser.S b/arch/x86_64/lib/putuser.S
index 5828b8191667..7f5593974e2d 100644
--- a/arch/x86_64/lib/putuser.S
+++ b/arch/x86_64/lib/putuser.S
@@ -27,7 +27,7 @@
 #include <linux/linkage.h>
 #include <asm/page.h>
 #include <asm/errno.h>
-#include <asm/offset.h>
+#include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
 
         .text