16 files changed, 78 insertions, 56 deletions

diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S
index 68d9223b145e..3eb84931d2aa 100644
--- a/arch/sh/kernel/entry-common.S
+++ b/arch/sh/kernel/entry-common.S
@@ -121,7 +121,7 @@ noresched:
 ENTRY(resume_userspace)
         ! r8: current_thread_info
         cli
-        TRACE_IRQS_OfF
+        TRACE_IRQS_OFF
         mov.l   @(TI_FLAGS,r8), r0              ! current_thread_info->flags
         tst     #(_TIF_WORK_MASK & 0xff), r0
         bt/s    __restore_all
diff --git a/arch/sh/kernel/ftrace.c b/arch/sh/kernel/ftrace.c
index a3dcc6d5d253..2c48e267256e 100644
--- a/arch/sh/kernel/ftrace.c
+++ b/arch/sh/kernel/ftrace.c
@@ -291,31 +291,48 @@ struct syscall_metadata *syscall_nr_to_meta(int nr)
         return syscalls_metadata[nr];
 }
 
-void arch_init_ftrace_syscalls(void)
+int syscall_name_to_nr(char *name)
+{
+        int i;
+
+        if (!syscalls_metadata)
+                return -1;
+        for (i = 0; i < NR_syscalls; i++)
+                if (syscalls_metadata[i])
+                        if (!strcmp(syscalls_metadata[i]->name, name))
+                                return i;
+        return -1;
+}
+
+void set_syscall_enter_id(int num, int id)
+{
+        syscalls_metadata[num]->enter_id = id;
+}
+
+void set_syscall_exit_id(int num, int id)
+{
+        syscalls_metadata[num]->exit_id = id;
+}
+
+static int __init arch_init_ftrace_syscalls(void)
 {
         int i;
         struct syscall_metadata *meta;
         unsigned long **psys_syscall_table = &sys_call_table;
-        static atomic_t refs;
-
-        if (atomic_inc_return(&refs) != 1)
-                goto end;
 
         syscalls_metadata = kzalloc(sizeof(*syscalls_metadata) *
                                         FTRACE_SYSCALL_MAX, GFP_KERNEL);
         if (!syscalls_metadata) {
                 WARN_ON(1);
-                return;
+                return -ENOMEM;
         }
 
         for (i = 0; i < FTRACE_SYSCALL_MAX; i++) {
                 meta = find_syscall_meta(psys_syscall_table[i]);
                 syscalls_metadata[i] = meta;
         }
-        return;
 
-        /* Paranoid: avoid overflow */
-end:
-        atomic_dec(&refs);
+        return 0;
 }
+arch_initcall(arch_init_ftrace_syscalls);
 #endif /* CONFIG_FTRACE_SYSCALLS */
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index f9d44f8e0df6..99b4fb553bf1 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -549,6 +549,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 
         if (cpu == 0)
                 seq_printf(m, "machine\t\t: %s\n", get_system_type());
+        else
+                seq_printf(m, "\n");
 
         seq_printf(m, "processor\t: %d\n", cpu);
         seq_printf(m, "cpu family\t: %s\n", init_utsname()->machine);
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
index 6729703547a1..3db37425210d 100644
--- a/arch/sh/kernel/signal_32.c
+++ b/arch/sh/kernel/signal_32.c
@@ -145,7 +145,7 @@ static inline int restore_sigcontext_fpu(struct sigcontext __user *sc)
 {
         struct task_struct *tsk = current;
 
-        if (!(current_cpu_data.flags & CPU_HAS_FPU))
+        if (!(boot_cpu_data.flags & CPU_HAS_FPU))
                 return 0;
 
         set_used_math();
@@ -158,7 +158,7 @@ static inline int save_sigcontext_fpu(struct sigcontext __user *sc,
 {
         struct task_struct *tsk = current;
 
-        if (!(current_cpu_data.flags & CPU_HAS_FPU))
+        if (!(boot_cpu_data.flags & CPU_HAS_FPU))
                 return 0;
 
         if (!used_math()) {
@@ -199,7 +199,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *r0_p
 #undef COPY
 
 #ifdef CONFIG_SH_FPU
-        if (current_cpu_data.flags & CPU_HAS_FPU) {
+        if (boot_cpu_data.flags & CPU_HAS_FPU) {
                 int owned_fp;
                 struct task_struct *tsk = current;
 
@@ -472,6 +472,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                 err |= __put_user(OR_R0_R0, &frame->retcode[6]);
                 err |= __put_user((__NR_rt_sigreturn), &frame->retcode[7]);
                 regs->pr = (unsigned long) frame->retcode;
+                flush_icache_range(regs->pr, regs->pr + sizeof(frame->retcode));
         }
 
         if (err)
@@ -497,8 +498,6 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
         pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n",
                  current->comm, task_pid_nr(current), frame, regs->pc, regs->pr);
 
-        flush_icache_range(regs->pr, regs->pr + sizeof(frame->retcode));
-
         return 0;
 
 give_sigsegv:
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 442d8d47a41e..160db1003cfb 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -35,6 +35,8 @@ static inline void __init smp_store_cpu_info(unsigned int cpu)
 {
         struct sh_cpuinfo *c = cpu_data + cpu;
 
+        memcpy(c, &boot_cpu_data, sizeof(struct sh_cpuinfo));
+
         c->loops_per_jiffy = loops_per_jiffy;
 }
 
diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c
index e0b5e4b5accd..7a2ee3a6b8e7 100644
--- a/arch/sh/kernel/traps_32.c
+++ b/arch/sh/kernel/traps_32.c
@@ -25,6 +25,7 @@
 #include <linux/kexec.h>
 #include <linux/limits.h>
 #include <linux/proc_fs.h>
+#include <linux/sysfs.h>
 #include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/fpu.h>
@@ -159,12 +160,12 @@ void die(const char * str, struct pt_regs * regs, long err)
 
         oops_enter();
 
-        console_verbose();
         spin_lock_irq(&die_lock);
+        console_verbose();
         bust_spinlocks(1);
 
         printk("%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter);
-
+        sysfs_printk_last_file();
         print_modules();
         show_regs(regs);
 
@@ -180,6 +181,7 @@ void die(const char * str, struct pt_regs * regs, long err)
         bust_spinlocks(0);
         add_taint(TAINT_DIE);
         spin_unlock_irq(&die_lock);
+        oops_exit();
 
         if (kexec_should_crash(current))
                 crash_kexec(regs);
@@ -190,7 +192,6 @@ void die(const char * str, struct pt_regs * regs, long err)
         if (panic_on_oops)
                 panic("Fatal exception");
 
-        oops_exit();
         do_exit(SIGSEGV);
 }
 
diff --git a/arch/sh/mm/cache.c b/arch/sh/mm/cache.c
index 35c37b7f717a..5e1091be9dc4 100644
--- a/arch/sh/mm/cache.c
+++ b/arch/sh/mm/cache.c
@@ -128,7 +128,7 @@ void __update_cache(struct vm_area_struct *vma,
                 return;
 
         page = pfn_to_page(pfn);
-        if (pfn_valid(pfn) && page_mapping(page)) {
+        if (pfn_valid(pfn)) {
                 int dirty = test_and_clear_bit(PG_dcache_dirty, &page->flags);
                 if (dirty) {
                         unsigned long addr = (unsigned long)page_address(page);
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c876bace8fdc..07e01149e3bf 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -491,7 +491,7 @@ if PARAVIRT_GUEST
 source "arch/x86/xen/Kconfig"
 
 config VMI
-        bool "VMI Guest support"
+        bool "VMI Guest support (DEPRECATED)"
         select PARAVIRT
         depends on X86_32
         ---help---
@@ -500,6 +500,15 @@ config VMI
           at the moment), by linking the kernel to a GPL-ed ROM module
           provided by the hypervisor.
 
+          As of September 2009, VMware has started a phased retirement
+          of this feature from VMware's products. Please see
+          feature-removal-schedule.txt for details.  If you are
+          planning to enable this option, please note that you cannot
+          live migrate a VMI enabled VM to a future VMware product,
+          which doesn't support VMI. So if you expect your kernel to
+          seamlessly migrate to newer VMware products, keep this
+          disabled.
+
 config KVM_CLOCK
         bool "KVM paravirtualized clock"
         select PARAVIRT
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 8aebcc41041d..efb38994859c 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -840,42 +840,22 @@ static __always_inline void __raw_spin_unlock(struct raw_spinlock *lock)
 
 static inline unsigned long __raw_local_save_flags(void)
 {
-        unsigned long f;
-
-        asm volatile(paravirt_alt(PARAVIRT_CALL)
-                     : "=a"(f)
-                     : paravirt_type(pv_irq_ops.save_fl),
-                       paravirt_clobber(CLBR_EAX)
-                     : "memory", "cc");
-        return f;
+        return PVOP_CALLEE0(unsigned long, pv_irq_ops.save_fl);
 }
 
 static inline void raw_local_irq_restore(unsigned long f)
 {
-        asm volatile(paravirt_alt(PARAVIRT_CALL)
-                     : "=a"(f)
-                     : PV_FLAGS_ARG(f),
-                       paravirt_type(pv_irq_ops.restore_fl),
-                       paravirt_clobber(CLBR_EAX)
-                     : "memory", "cc");
+        PVOP_VCALLEE1(pv_irq_ops.restore_fl, f);
 }
 
 static inline void raw_local_irq_disable(void)
 {
-        asm volatile(paravirt_alt(PARAVIRT_CALL)
-                     :
-                     : paravirt_type(pv_irq_ops.irq_disable),
-                       paravirt_clobber(CLBR_EAX)
-                     : "memory", "eax", "cc");
+        PVOP_VCALLEE0(pv_irq_ops.irq_disable);
 }
 
 static inline void raw_local_irq_enable(void)
 {
-        asm volatile(paravirt_alt(PARAVIRT_CALL)
-                     :
-                     : paravirt_type(pv_irq_ops.irq_enable),
-                       paravirt_clobber(CLBR_EAX)
-                     : "memory", "eax", "cc");
+        PVOP_VCALLEE0(pv_irq_ops.irq_enable);
 }
 
 static inline unsigned long __raw_local_irq_save(void)
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index dd0f5b32489d..9357473c8da0 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -494,10 +494,11 @@ int paravirt_disable_iospace(void);
 #define EXTRA_CLOBBERS
 #define VEXTRA_CLOBBERS
 #else  /* CONFIG_X86_64 */
+/* [re]ax isn't an arg, but the return val */
 #define PVOP_VCALL_ARGS                                 \
         unsigned long __edi = __edi, __esi = __esi,     \
-                __edx = __edx, __ecx = __ecx
-#define PVOP_CALL_ARGS          PVOP_VCALL_ARGS, __eax
+                __edx = __edx, __ecx = __ecx, __eax = __eax
+#define PVOP_CALL_ARGS          PVOP_VCALL_ARGS
 
 #define PVOP_CALL_ARG1(x)               "D" ((unsigned long)(x))
 #define PVOP_CALL_ARG2(x)               "S" ((unsigned long)(x))
@@ -509,6 +510,7 @@ int paravirt_disable_iospace(void);
                                 "=c" (__ecx)
 #define PVOP_CALL_CLOBBERS      PVOP_VCALL_CLOBBERS, "=a" (__eax)
 
+/* void functions are still allowed [re]ax for scratch */
 #define PVOP_VCALLEE_CLOBBERS   "=a" (__eax)
 #define PVOP_CALLEE_CLOBBERS    PVOP_VCALLEE_CLOBBERS
 
@@ -583,8 +585,8 @@ int paravirt_disable_iospace(void);
                        VEXTRA_CLOBBERS,                                 \
                        pre, post, ##__VA_ARGS__)
 
-#define __PVOP_VCALLEESAVE(rettype, op, pre, post, ...)                 \
-        ____PVOP_CALL(rettype, op.func, CLBR_RET_REG,                   \
+#define __PVOP_VCALLEESAVE(op, pre, post, ...)                          \
+        ____PVOP_VCALL(op.func, CLBR_RET_REG,                           \
                       PVOP_VCALLEE_CLOBBERS, ,                          \
                       pre, post, ##__VA_ARGS__)
 
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 391206199515..74656d1d4e30 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -244,7 +244,6 @@ unsigned int __irq_entry do_IRQ(struct pt_regs *regs)
                                 __func__, smp_processor_id(), vector, irq);
         }
 
-        run_local_timers();
         irq_exit();
 
         set_irq_regs(old_regs);
@@ -269,7 +268,6 @@ void smp_generic_interrupt(struct pt_regs *regs)
         if (generic_interrupt_extension)
                 generic_interrupt_extension();
 
-        run_local_timers();
         irq_exit();
 
         set_irq_regs(old_regs);
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index d915d956e66d..ec1de97600e7 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -198,7 +198,6 @@ void smp_reschedule_interrupt(struct pt_regs *regs)
 {
         ack_APIC_irq();
         inc_irq_stat(irq_resched_count);
-        run_local_timers();
         /*
          * KVM uses this interrupt to force a cpu out of guest mode
          */
diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index dcb00d278512..be2573448ed9 100644
--- a/arch/x86/kernel/time.c
+++ b/arch/x86/kernel/time.c
@@ -38,7 +38,8 @@ unsigned long profile_pc(struct pt_regs *regs)
 #ifdef CONFIG_FRAME_POINTER
                 return *(unsigned long *)(regs->bp + sizeof(long));
 #else
-                unsigned long *sp = (unsigned long *)regs->sp;
+                unsigned long *sp =
+                        (unsigned long *)kernel_stack_pointer(regs);
                 /*
                  * Return address is either directly at stack pointer
                  * or above a saved flags. Eflags has bits 22-31 zero,
diff --git a/arch/x86/kernel/trampoline.c b/arch/x86/kernel/trampoline.c
index 699f7eeb896a..cd022121cab6 100644
--- a/arch/x86/kernel/trampoline.c
+++ b/arch/x86/kernel/trampoline.c
@@ -3,8 +3,16 @@
 #include <asm/trampoline.h>
 #include <asm/e820.h>
 
+#if defined(CONFIG_X86_64) && defined(CONFIG_ACPI_SLEEP)
+#define __trampinit
+#define __trampinitdata
+#else
+#define __trampinit __cpuinit
+#define __trampinitdata __cpuinitdata
+#endif
+
 /* ready for x86_64 and x86 */
-unsigned char *__cpuinitdata trampoline_base = __va(TRAMPOLINE_BASE);
+unsigned char *__trampinitdata trampoline_base = __va(TRAMPOLINE_BASE);
 
 void __init reserve_trampoline_memory(void)
 {
@@ -26,7 +34,7 @@ void __init reserve_trampoline_memory(void)
  * bootstrap into the page concerned. The caller
  * has made sure it's suitably aligned.
  */
-unsigned long __cpuinit setup_trampoline(void)
+unsigned long __trampinit setup_trampoline(void)
 {
         memcpy(trampoline_base, trampoline_data, TRAMPOLINE_SIZE);
         return virt_to_phys(trampoline_base);
diff --git a/arch/x86/kernel/trampoline_64.S b/arch/x86/kernel/trampoline_64.S
index 596d54c660a5..3af2dff58b21 100644
--- a/arch/x86/kernel/trampoline_64.S
+++ b/arch/x86/kernel/trampoline_64.S
@@ -32,8 +32,12 @@
 #include <asm/segment.h>
 #include <asm/processor-flags.h>
 
+#ifdef CONFIG_ACPI_SLEEP
+.section .rodata, "a", @progbits
+#else
 /* We can free up the trampoline after bootup if cpu hotplug is not supported. */
 __CPUINITRODATA
+#endif
 .code16
 
 ENTRY(trampoline_data)
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 31e6f6cfe53e..d430e4c30193 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -648,7 +648,7 @@ static inline int __init activate_vmi(void)
 
         pv_info.paravirt_enabled = 1;
         pv_info.kernel_rpl = kernel_cs & SEGMENT_RPL_MASK;
-        pv_info.name = "vmi";
+        pv_info.name = "vmi [deprecated]";
 
         pv_init_ops.patch = vmi_patch;