diff --git a/[refs] b/[refs]
index eb25cf9aea48..ba2833252aff 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
---
-refs/heads/master: ddae9c2ea79449beb00027cf77fca6dc489f2d15
+refs/heads/master: 9f5974c8734d83d4ab7096ed98136a82f41210d6
diff --git a/trunk/Documentation/filesystems/ext3.txt b/trunk/Documentation/filesystems/ext3.txt
index f4d0de6bac63..afb1335c05d6 100644
--- a/trunk/Documentation/filesystems/ext3.txt
+++ b/trunk/Documentation/filesystems/ext3.txt
@@ -84,8 +84,6 @@ reservation
noreservation
-resize=
-
bsddf (*) Make 'df' act like BSD.
minixdf Make 'df' act like Minix.
@@ -175,6 +173,7 @@ See manual pages to learn more.
tune2fs: create a ext3 journal on a ext2 partition with the -j flag.
mke2fs: create a ext3 partition with the -j flag.
debugfs: ext2 and ext3 file system debugger.
+ext2online: online (mounted) ext2 and ext3 filesystem resizer
References
@@ -184,6 +183,7 @@ kernel source:
programs: http://e2fsprogs.sourceforge.net/
+ http://ext2resize.sourceforge.net
useful links: http://www.zip.com.au/~akpm/linux/ext3/ext3-usage.html
http://www-106.ibm.com/developerworks/linux/library/l-fs7/
diff --git a/trunk/Documentation/kdump/gdbmacros.txt b/trunk/Documentation/kdump/gdbmacros.txt
index bc1b9eb92ae1..dcf5580380ab 100644
--- a/trunk/Documentation/kdump/gdbmacros.txt
+++ b/trunk/Documentation/kdump/gdbmacros.txt
@@ -177,3 +177,25 @@ document trapinfo
'trapinfo ' will tell you by which trap & possibly
addresthe kernel paniced.
end
+
+
+define dmesg
+ set $i = 0
+ set $end_idx = (log_end - 1) & (log_buf_len - 1)
+
+ while ($i < logged_chars)
+ set $idx = (log_end - 1 - logged_chars + $i) & (log_buf_len - 1)
+
+ if ($idx + 100 <= $end_idx) || \
+ ($end_idx <= $idx && $idx + 100 < log_buf_len)
+ printf "%.100s", &log_buf[$idx]
+ set $i = $i + 100
+ else
+ printf "%c", log_buf[$idx]
+ set $i = $i + 1
+ end
+ end
+end
+document dmesg
+ print the kernel ring buffer
+end
diff --git a/trunk/Documentation/kernel-parameters.txt b/trunk/Documentation/kernel-parameters.txt
index dd0bfc291a68..fe11fccf7e41 100644
--- a/trunk/Documentation/kernel-parameters.txt
+++ b/trunk/Documentation/kernel-parameters.txt
@@ -856,6 +856,49 @@ running once the system is up.
mga= [HW,DRM]
+ migration_cost=
+ [KNL,SMP] debug: override scheduler migration costs
+ Format: ,,...
+ This debugging option can be used to override the
+ default scheduler migration cost matrix. The numbers
+ are indexed by 'CPU domain distance'.
+ E.g. migration_cost=1000,2000,3000 on an SMT NUMA
+ box will set up an intra-core migration cost of
+ 1 msec, an inter-core migration cost of 2 msecs,
+ and an inter-node migration cost of 3 msecs.
+
+ WARNING: using the wrong values here can break
+ scheduler performance, so it's only for scheduler
+ development purposes, not production environments.
+
+ migration_debug=
+ [KNL,SMP] migration cost auto-detect verbosity
+ Format=<0|1|2>
+ If a system's migration matrix reported at bootup
+ seems erroneous then this option can be used to
+ increase verbosity of the detection process.
+ We default to 0 (no extra messages), 1 will print
+ some more information, and 2 will be really
+ verbose (probably only useful if you also have a
+ serial console attached to the system).
+
+ migration_factor=
+ [KNL,SMP] multiply/divide migration costs by a factor
+ Format=
+ This debug option can be used to proportionally
+ increase or decrease the auto-detected migration
+ costs for all entries of the migration matrix.
+ E.g. migration_factor=150 will increase migration
+ costs by 50%. (and thus the scheduler will be less
+ eager migrating cache-hot tasks)
+ migration_factor=80 will decrease migration costs
+ by 20%. (thus the scheduler will be more eager to
+ migrate tasks)
+
+ WARNING: using the wrong values here can break
+ scheduler performance, so it's only for scheduler
+ development purposes, not production environments.
+
mousedev.tap_time=
[MOUSE] Maximum time between finger touching and
leaving touchpad surface for touch to be considered
diff --git a/trunk/Documentation/oops-tracing.txt b/trunk/Documentation/oops-tracing.txt
index 05960f8a748e..2503404ae5c2 100644
--- a/trunk/Documentation/oops-tracing.txt
+++ b/trunk/Documentation/oops-tracing.txt
@@ -41,11 +41,9 @@ the disk is not available then you have three options :-
run a null modem to a second machine and capture the output there
using your favourite communication program. Minicom works well.
-(3) Patch the kernel with one of the crash dump patches. These save
- data to a floppy disk or video rom or a swap partition. None of
- these are standard kernel patches so you have to find and apply
- them yourself. Search kernel archives for kmsgdump, lkcd and
- oops+smram.
+(3) Use Kdump (see Documentation/kdump/kdump.txt),
+ extract the kernel ring buffer from old memory with using dmesg
+ gdbmacro in Documentation/kdump/gdbmacros.txt.
Full Information
diff --git a/trunk/Documentation/video4linux/CARDLIST.bttv b/trunk/Documentation/video4linux/CARDLIST.bttv
index 74fb085e178b..b72706c58a44 100644
--- a/trunk/Documentation/video4linux/CARDLIST.bttv
+++ b/trunk/Documentation/video4linux/CARDLIST.bttv
@@ -142,3 +142,4 @@
141 -> Asound Skyeye PCTV
142 -> Sabrent TV-FM (bttv version)
143 -> Hauppauge ImpactVCB (bt878) [0070:13eb]
+144 -> MagicTV
diff --git a/trunk/Documentation/video4linux/CARDLIST.cx88 b/trunk/Documentation/video4linux/CARDLIST.cx88
index 34b6e59f2968..56e194f1a0b0 100644
--- a/trunk/Documentation/video4linux/CARDLIST.cx88
+++ b/trunk/Documentation/video4linux/CARDLIST.cx88
@@ -19,7 +19,7 @@
18 -> Hauppauge Nova-T DVB-T [0070:9002,0070:9001]
19 -> Conexant DVB-T reference design [14f1:0187]
20 -> Provideo PV259 [1540:2580]
- 21 -> DViCO FusionHDTV DVB-T Plus [18ac:db10]
+ 21 -> DViCO FusionHDTV DVB-T Plus [18ac:db10,18ac:db11]
22 -> pcHDTV HD3000 HDTV [7063:3000]
23 -> digitalnow DNTV Live! DVB-T [17de:a8a6]
24 -> Hauppauge WinTV 28xxx (Roslyn) models [0070:2801]
diff --git a/trunk/Documentation/x86_64/boot-options.txt b/trunk/Documentation/x86_64/boot-options.txt
index e566affeed7f..72ab9b99b22c 100644
--- a/trunk/Documentation/x86_64/boot-options.txt
+++ b/trunk/Documentation/x86_64/boot-options.txt
@@ -125,7 +125,7 @@ SMP
cpumask=MASK only use cpus with bits set in mask
additional_cpus=NUM Allow NUM more CPUs for hotplug
- (defaults are specified by the BIOS or half the available CPUs)
+ (defaults are specified by the BIOS, see Documentation/x86_64/cpu-hotplug-spec)
NUMA
diff --git a/trunk/Documentation/x86_64/cpu-hotplug-spec b/trunk/Documentation/x86_64/cpu-hotplug-spec
new file mode 100644
index 000000000000..5c0fa345e556
--- /dev/null
+++ b/trunk/Documentation/x86_64/cpu-hotplug-spec
@@ -0,0 +1,21 @@
+Firmware support for CPU hotplug under Linux/x86-64
+---------------------------------------------------
+
+Linux/x86-64 supports CPU hotplug now. For various reasons Linux wants to
+know in advance boot time the maximum number of CPUs that could be plugged
+into the system. ACPI 3.0 currently has no official way to supply
+this information from the firmware to the operating system.
+
+In ACPI each CPU needs an LAPIC object in the MADT table (5.2.11.5 in the
+ACPI 3.0 specification). ACPI already has the concept of disabled LAPIC
+objects by setting the Enabled bit in the LAPIC object to zero.
+
+For CPU hotplug Linux/x86-64 expects now that any possible future hotpluggable
+CPU is already available in the MADT. If the CPU is not available yet
+it should have its LAPIC Enabled bit set to 0. Linux will use the number
+of disabled LAPICs to compute the maximum number of future CPUs.
+
+In the worst case the user can overwrite this choice using a command line
+option (additional_cpus=...), but it is recommended to supply the correct
+number (or a reasonable approximation of it, with erring towards more not less)
+in the MADT to avoid manual configuration.
diff --git a/trunk/MAINTAINERS b/trunk/MAINTAINERS
index b6416a293ec9..0db72a36e245 100644
--- a/trunk/MAINTAINERS
+++ b/trunk/MAINTAINERS
@@ -2359,13 +2359,6 @@ P: Nicolas Pitre
M: nico@cam.org
S: Maintained
-SNA NETWORK LAYER
-P: Jay Schulist
-M: jschlst@samba.org
-L: linux-sna@turbolinux.com
-W: http://www.linux-sna.org
-S: Supported
-
SOFTWARE RAID (Multiple Disks) SUPPORT
P: Ingo Molnar
M: mingo@redhat.com
diff --git a/trunk/arch/alpha/kernel/pci-noop.c b/trunk/arch/alpha/kernel/pci-noop.c
index 9903e3a79102..fff5cf93e816 100644
--- a/trunk/arch/alpha/kernel/pci-noop.c
+++ b/trunk/arch/alpha/kernel/pci-noop.c
@@ -7,6 +7,7 @@
#include
#include
#include
+#include
#include
#include
#include
diff --git a/trunk/arch/alpha/kernel/process.c b/trunk/arch/alpha/kernel/process.c
index abb739b88ed1..9924fd07743a 100644
--- a/trunk/arch/alpha/kernel/process.c
+++ b/trunk/arch/alpha/kernel/process.c
@@ -276,7 +276,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
{
extern void ret_from_fork(void);
- struct thread_info *childti = p->thread_info;
+ struct thread_info *childti = task_thread_info(p);
struct pt_regs * childregs;
struct switch_stack * childstack, *stack;
unsigned long stack_offset, settls;
@@ -285,7 +285,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
if (!(regs->ps & 8))
stack_offset = (PAGE_SIZE-1) & (unsigned long) regs;
childregs = (struct pt_regs *)
- (stack_offset + PAGE_SIZE + (long) childti);
+ (stack_offset + PAGE_SIZE + task_stack_page(p));
*childregs = *regs;
settls = regs->r20;
@@ -428,30 +428,15 @@ dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt, struct thread_info *ti)
int
dump_elf_task(elf_greg_t *dest, struct task_struct *task)
{
- struct thread_info *ti;
- struct pt_regs *pt;
-
- ti = task->thread_info;
- pt = (struct pt_regs *)((unsigned long)ti + 2*PAGE_SIZE) - 1;
-
- dump_elf_thread(dest, pt, ti);
-
+ dump_elf_thread(dest, task_pt_regs(task), task_thread_info(task));
return 1;
}
int
dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task)
{
- struct thread_info *ti;
- struct pt_regs *pt;
- struct switch_stack *sw;
-
- ti = task->thread_info;
- pt = (struct pt_regs *)((unsigned long)ti + 2*PAGE_SIZE) - 1;
- sw = (struct switch_stack *)pt - 1;
-
+ struct switch_stack *sw = (struct switch_stack *)task_pt_regs(task) - 1;
memcpy(dest, sw->fp, 32 * 8);
-
return 1;
}
@@ -492,8 +477,8 @@ do_sys_execve(char __user *ufilename, char __user * __user *argv,
unsigned long
thread_saved_pc(task_t *t)
{
- unsigned long base = (unsigned long)t->thread_info;
- unsigned long fp, sp = t->thread_info->pcb.ksp;
+ unsigned long base = (unsigned long)task_stack_page(t);
+ unsigned long fp, sp = task_thread_info(t)->pcb.ksp;
if (sp > base && sp+6*8 < base + 16*1024) {
fp = ((unsigned long*)sp)[6];
@@ -523,7 +508,7 @@ get_wchan(struct task_struct *p)
pc = thread_saved_pc(p);
if (in_sched_functions(pc)) {
- schedule_frame = ((unsigned long *)p->thread_info->pcb.ksp)[6];
+ schedule_frame = ((unsigned long *)task_thread_info(p)->pcb.ksp)[6];
return ((unsigned long *)schedule_frame)[12];
}
return pc;
diff --git a/trunk/arch/alpha/kernel/ptrace.c b/trunk/arch/alpha/kernel/ptrace.c
index 9969d212e94d..0cd060598f9a 100644
--- a/trunk/arch/alpha/kernel/ptrace.c
+++ b/trunk/arch/alpha/kernel/ptrace.c
@@ -72,6 +72,13 @@ enum {
REG_R0 = 0, REG_F0 = 32, REG_FPCR = 63, REG_PC = 64
};
+#define PT_REG(reg) \
+ (PAGE_SIZE*2 - sizeof(struct pt_regs) + offsetof(struct pt_regs, reg))
+
+#define SW_REG(reg) \
+ (PAGE_SIZE*2 - sizeof(struct pt_regs) - sizeof(struct switch_stack) \
+ + offsetof(struct switch_stack, reg))
+
static int regoff[] = {
PT_REG( r0), PT_REG( r1), PT_REG( r2), PT_REG( r3),
PT_REG( r4), PT_REG( r5), PT_REG( r6), PT_REG( r7),
@@ -103,14 +110,14 @@ get_reg_addr(struct task_struct * task, unsigned long regno)
unsigned long *addr;
if (regno == 30) {
- addr = &task->thread_info->pcb.usp;
+ addr = &task_thread_info(task)->pcb.usp;
} else if (regno == 65) {
- addr = &task->thread_info->pcb.unique;
+ addr = &task_thread_info(task)->pcb.unique;
} else if (regno == 31 || regno > 65) {
zero = 0;
addr = &zero;
} else {
- addr = (void *)task->thread_info + regoff[regno];
+ addr = task_stack_page(task) + regoff[regno];
}
return addr;
}
@@ -125,7 +132,7 @@ get_reg(struct task_struct * task, unsigned long regno)
if (regno == 63) {
unsigned long fpcr = *get_reg_addr(task, regno);
unsigned long swcr
- = task->thread_info->ieee_state & IEEE_SW_MASK;
+ = task_thread_info(task)->ieee_state & IEEE_SW_MASK;
swcr = swcr_update_status(swcr, fpcr);
return fpcr | swcr;
}
@@ -139,8 +146,8 @@ static int
put_reg(struct task_struct *task, unsigned long regno, unsigned long data)
{
if (regno == 63) {
- task->thread_info->ieee_state
- = ((task->thread_info->ieee_state & ~IEEE_SW_MASK)
+ task_thread_info(task)->ieee_state
+ = ((task_thread_info(task)->ieee_state & ~IEEE_SW_MASK)
| (data & IEEE_SW_MASK));
data = (data & FPCR_DYN_MASK) | ieee_swcr_to_fpcr(data);
}
@@ -188,35 +195,35 @@ ptrace_set_bpt(struct task_struct * child)
* branch (emulation can be tricky for fp branches).
*/
displ = ((s32)(insn << 11)) >> 9;
- child->thread_info->bpt_addr[nsaved++] = pc + 4;
+ task_thread_info(child)->bpt_addr[nsaved++] = pc + 4;
if (displ) /* guard against unoptimized code */
- child->thread_info->bpt_addr[nsaved++]
+ task_thread_info(child)->bpt_addr[nsaved++]
= pc + 4 + displ;
DBG(DBG_BPT, ("execing branch\n"));
} else if (op_code == 0x1a) {
reg_b = (insn >> 16) & 0x1f;
- child->thread_info->bpt_addr[nsaved++] = get_reg(child, reg_b);
+ task_thread_info(child)->bpt_addr[nsaved++] = get_reg(child, reg_b);
DBG(DBG_BPT, ("execing jump\n"));
} else {
- child->thread_info->bpt_addr[nsaved++] = pc + 4;
+ task_thread_info(child)->bpt_addr[nsaved++] = pc + 4;
DBG(DBG_BPT, ("execing normal insn\n"));
}
/* install breakpoints: */
for (i = 0; i < nsaved; ++i) {
- res = read_int(child, child->thread_info->bpt_addr[i],
+ res = read_int(child, task_thread_info(child)->bpt_addr[i],
(int *) &insn);
if (res < 0)
return res;
- child->thread_info->bpt_insn[i] = insn;
+ task_thread_info(child)->bpt_insn[i] = insn;
DBG(DBG_BPT, (" -> next_pc=%lx\n",
- child->thread_info->bpt_addr[i]));
- res = write_int(child, child->thread_info->bpt_addr[i],
+ task_thread_info(child)->bpt_addr[i]));
+ res = write_int(child, task_thread_info(child)->bpt_addr[i],
BREAKINST);
if (res < 0)
return res;
}
- child->thread_info->bpt_nsaved = nsaved;
+ task_thread_info(child)->bpt_nsaved = nsaved;
return 0;
}
@@ -227,9 +234,9 @@ ptrace_set_bpt(struct task_struct * child)
int
ptrace_cancel_bpt(struct task_struct * child)
{
- int i, nsaved = child->thread_info->bpt_nsaved;
+ int i, nsaved = task_thread_info(child)->bpt_nsaved;
- child->thread_info->bpt_nsaved = 0;
+ task_thread_info(child)->bpt_nsaved = 0;
if (nsaved > 2) {
printk("ptrace_cancel_bpt: bogus nsaved: %d!\n", nsaved);
@@ -237,8 +244,8 @@ ptrace_cancel_bpt(struct task_struct * child)
}
for (i = 0; i < nsaved; ++i) {
- write_int(child, child->thread_info->bpt_addr[i],
- child->thread_info->bpt_insn[i]);
+ write_int(child, task_thread_info(child)->bpt_addr[i],
+ task_thread_info(child)->bpt_insn[i]);
}
return (nsaved != 0);
}
@@ -355,7 +362,7 @@ do_sys_ptrace(long request, long pid, long addr, long data,
if (!valid_signal(data))
break;
/* Mark single stepping. */
- child->thread_info->bpt_nsaved = -1;
+ task_thread_info(child)->bpt_nsaved = -1;
clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
child->exit_code = data;
wake_up_process(child);
diff --git a/trunk/arch/alpha/kernel/smp.c b/trunk/arch/alpha/kernel/smp.c
index da0be3465791..4b873527ce1c 100644
--- a/trunk/arch/alpha/kernel/smp.c
+++ b/trunk/arch/alpha/kernel/smp.c
@@ -302,7 +302,7 @@ secondary_cpu_start(int cpuid, struct task_struct *idle)
+ hwrpb->processor_offset
+ cpuid * hwrpb->processor_size);
hwpcb = (struct pcb_struct *) cpu->hwpcb;
- ipcb = &idle->thread_info->pcb;
+ ipcb = &task_thread_info(idle)->pcb;
/* Initialize the CPU's HWPCB to something just good enough for
us to get started. Immediately after starting, we'll swpctx
diff --git a/trunk/arch/arm/common/rtctime.c b/trunk/arch/arm/common/rtctime.c
index 72b03f201eb9..ffb82d5bedef 100644
--- a/trunk/arch/arm/common/rtctime.c
+++ b/trunk/arch/arm/common/rtctime.c
@@ -17,6 +17,7 @@
#include
#include
#include
+#include
#include
#include
diff --git a/trunk/arch/arm/kernel/apm.c b/trunk/arch/arm/kernel/apm.c
index b9df1b782bb1..766b6c05c6db 100644
--- a/trunk/arch/arm/kernel/apm.c
+++ b/trunk/arch/arm/kernel/apm.c
@@ -18,6 +18,7 @@
#include
#include
#include
+#include
#include
#include
#include
diff --git a/trunk/arch/arm/kernel/process.c b/trunk/arch/arm/kernel/process.c
index 54a21bdcba5c..4b4e4cf79c80 100644
--- a/trunk/arch/arm/kernel/process.c
+++ b/trunk/arch/arm/kernel/process.c
@@ -342,10 +342,10 @@ void flush_thread(void)
void release_thread(struct task_struct *dead_task)
{
#if defined(CONFIG_VFP)
- vfp_release_thread(&dead_task->thread_info->vfpstate);
+ vfp_release_thread(&task_thread_info(dead_task)->vfpstate);
#endif
#if defined(CONFIG_IWMMXT)
- iwmmxt_task_release(dead_task->thread_info);
+ iwmmxt_task_release(task_thread_info(dead_task));
#endif
}
@@ -355,10 +355,9 @@ int
copy_thread(int nr, unsigned long clone_flags, unsigned long stack_start,
unsigned long stk_sz, struct task_struct *p, struct pt_regs *regs)
{
- struct thread_info *thread = p->thread_info;
- struct pt_regs *childregs;
+ struct thread_info *thread = task_thread_info(p);
+ struct pt_regs *childregs = task_pt_regs(p);
- childregs = (void *)thread + THREAD_START_SP - sizeof(*regs);
*childregs = *regs;
childregs->ARM_r0 = 0;
childregs->ARM_sp = stack_start;
@@ -460,8 +459,8 @@ unsigned long get_wchan(struct task_struct *p)
if (!p || p == current || p->state == TASK_RUNNING)
return 0;
- stack_start = (unsigned long)(p->thread_info + 1);
- stack_end = ((unsigned long)p->thread_info) + THREAD_SIZE;
+ stack_start = (unsigned long)end_of_stack(p);
+ stack_end = (unsigned long)task_stack_page(p) + THREAD_SIZE;
fp = thread_saved_fp(p);
do {
diff --git a/trunk/arch/arm/kernel/ptrace.c b/trunk/arch/arm/kernel/ptrace.c
index 2b84f78d7b0f..e591f72bcdeb 100644
--- a/trunk/arch/arm/kernel/ptrace.c
+++ b/trunk/arch/arm/kernel/ptrace.c
@@ -54,23 +54,6 @@
#define BREAKINST_THUMB 0xde01
#endif
-/*
- * Get the address of the live pt_regs for the specified task.
- * These are saved onto the top kernel stack when the process
- * is not running.
- *
- * Note: if a user thread is execve'd from kernel space, the
- * kernel stack will not be empty on entry to the kernel, so
- * ptracing these tasks will fail.
- */
-static inline struct pt_regs *
-get_user_regs(struct task_struct *task)
-{
- return (struct pt_regs *)
- ((unsigned long)task->thread_info + THREAD_SIZE -
- 8 - sizeof(struct pt_regs));
-}
-
/*
* this routine will get a word off of the processes privileged stack.
* the offset is how far from the base addr as stored in the THREAD.
@@ -79,7 +62,7 @@ get_user_regs(struct task_struct *task)
*/
static inline long get_user_reg(struct task_struct *task, int offset)
{
- return get_user_regs(task)->uregs[offset];
+ return task_pt_regs(task)->uregs[offset];
}
/*
@@ -91,7 +74,7 @@ static inline long get_user_reg(struct task_struct *task, int offset)
static inline int
put_user_reg(struct task_struct *task, int offset, long data)
{
- struct pt_regs newregs, *regs = get_user_regs(task);
+ struct pt_regs newregs, *regs = task_pt_regs(task);
int ret = -EINVAL;
newregs = *regs;
@@ -421,7 +404,7 @@ void ptrace_set_bpt(struct task_struct *child)
u32 insn;
int res;
- regs = get_user_regs(child);
+ regs = task_pt_regs(child);
pc = instruction_pointer(regs);
if (thumb_mode(regs)) {
@@ -572,7 +555,7 @@ static int ptrace_write_user(struct task_struct *tsk, unsigned long off,
*/
static int ptrace_getregs(struct task_struct *tsk, void __user *uregs)
{
- struct pt_regs *regs = get_user_regs(tsk);
+ struct pt_regs *regs = task_pt_regs(tsk);
return copy_to_user(uregs, regs, sizeof(struct pt_regs)) ? -EFAULT : 0;
}
@@ -587,7 +570,7 @@ static int ptrace_setregs(struct task_struct *tsk, void __user *uregs)
ret = -EFAULT;
if (copy_from_user(&newregs, uregs, sizeof(struct pt_regs)) == 0) {
- struct pt_regs *regs = get_user_regs(tsk);
+ struct pt_regs *regs = task_pt_regs(tsk);
ret = -EINVAL;
if (valid_user_regs(&newregs)) {
@@ -604,7 +587,7 @@ static int ptrace_setregs(struct task_struct *tsk, void __user *uregs)
*/
static int ptrace_getfpregs(struct task_struct *tsk, void __user *ufp)
{
- return copy_to_user(ufp, &tsk->thread_info->fpstate,
+ return copy_to_user(ufp, &task_thread_info(tsk)->fpstate,
sizeof(struct user_fp)) ? -EFAULT : 0;
}
@@ -613,7 +596,7 @@ static int ptrace_getfpregs(struct task_struct *tsk, void __user *ufp)
*/
static int ptrace_setfpregs(struct task_struct *tsk, void __user *ufp)
{
- struct thread_info *thread = tsk->thread_info;
+ struct thread_info *thread = task_thread_info(tsk);
thread->used_cp[1] = thread->used_cp[2] = 1;
return copy_from_user(&thread->fpstate, ufp,
sizeof(struct user_fp)) ? -EFAULT : 0;
@@ -626,7 +609,7 @@ static int ptrace_setfpregs(struct task_struct *tsk, void __user *ufp)
*/
static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp)
{
- struct thread_info *thread = tsk->thread_info;
+ struct thread_info *thread = task_thread_info(tsk);
void *ptr = &thread->fpstate;
if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT))
@@ -643,7 +626,7 @@ static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp)
*/
static int ptrace_setwmmxregs(struct task_struct *tsk, void __user *ufp)
{
- struct thread_info *thread = tsk->thread_info;
+ struct thread_info *thread = task_thread_info(tsk);
void *ptr = &thread->fpstate;
if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT))
@@ -779,7 +762,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
#endif
case PTRACE_GET_THREAD_AREA:
- ret = put_user(child->thread_info->tp_value,
+ ret = put_user(task_thread_info(child)->tp_value,
(unsigned long __user *) data);
break;
diff --git a/trunk/arch/arm/kernel/smp.c b/trunk/arch/arm/kernel/smp.c
index 373c0959bc2f..7338948bd7d3 100644
--- a/trunk/arch/arm/kernel/smp.c
+++ b/trunk/arch/arm/kernel/smp.c
@@ -114,7 +114,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
* We need to tell the secondary core where to find
* its stack and the page tables.
*/
- secondary_data.stack = (void *)idle->thread_info + THREAD_START_SP;
+ secondary_data.stack = task_stack_page(idle) + THREAD_START_SP;
secondary_data.pgdir = virt_to_phys(pgd);
wmb();
@@ -245,7 +245,7 @@ void __cpuexit cpu_die(void)
__asm__("mov sp, %0\n"
" b secondary_start_kernel"
:
- : "r" ((void *)current->thread_info + THREAD_SIZE - 8));
+ : "r" (task_stack_page(current) + THREAD_SIZE - 8));
}
#endif /* CONFIG_HOTPLUG_CPU */
diff --git a/trunk/arch/arm/kernel/traps.c b/trunk/arch/arm/kernel/traps.c
index c9fe6f5f7ee3..93cfd3ffcc72 100644
--- a/trunk/arch/arm/kernel/traps.c
+++ b/trunk/arch/arm/kernel/traps.c
@@ -164,7 +164,7 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
} else if (verify_stack(fp)) {
printk("invalid frame pointer 0x%08x", fp);
ok = 0;
- } else if (fp < (unsigned long)(tsk->thread_info + 1))
+ } else if (fp < (unsigned long)end_of_stack(tsk))
printk("frame pointer underflow");
printk("\n");
@@ -210,7 +210,7 @@ static void __die(const char *str, int err, struct thread_info *thread, struct p
if (!user_mode(regs) || in_interrupt()) {
dump_mem("Stack: ", regs->ARM_sp,
- THREAD_SIZE + (unsigned long)tsk->thread_info);
+ THREAD_SIZE + (unsigned long)task_stack_page(tsk));
dump_backtrace(regs, tsk);
dump_instr(regs);
}
diff --git a/trunk/arch/arm26/kernel/process.c b/trunk/arch/arm26/kernel/process.c
index 15833a0057dd..386305659171 100644
--- a/trunk/arch/arm26/kernel/process.c
+++ b/trunk/arch/arm26/kernel/process.c
@@ -277,10 +277,9 @@ int
copy_thread(int nr, unsigned long clone_flags, unsigned long stack_start,
unsigned long unused, struct task_struct *p, struct pt_regs *regs)
{
- struct thread_info *thread = p->thread_info;
- struct pt_regs *childregs;
+ struct thread_info *thread = task_thread_info(p);
+ struct pt_regs *childregs = task_pt_regs(p);
- childregs = __get_user_regs(thread);
*childregs = *regs;
childregs->ARM_r0 = 0;
childregs->ARM_sp = stack_start;
diff --git a/trunk/arch/arm26/kernel/ptrace.c b/trunk/arch/arm26/kernel/ptrace.c
index 4e6b7356a722..3c3371d4683e 100644
--- a/trunk/arch/arm26/kernel/ptrace.c
+++ b/trunk/arch/arm26/kernel/ptrace.c
@@ -39,21 +39,6 @@
*/
#define BREAKINST_ARM 0xef9f0001
-/*
- * Get the address of the live pt_regs for the specified task.
- * These are saved onto the top kernel stack when the process
- * is not running.
- *
- * Note: if a user thread is execve'd from kernel space, the
- * kernel stack will not be empty on entry to the kernel, so
- * ptracing these tasks will fail.
- */
-static inline struct pt_regs *
-get_user_regs(struct task_struct *task)
-{
- return __get_user_regs(task->thread_info);
-}
-
/*
* this routine will get a word off of the processes privileged stack.
* the offset is how far from the base addr as stored in the THREAD.
@@ -62,7 +47,7 @@ get_user_regs(struct task_struct *task)
*/
static inline long get_user_reg(struct task_struct *task, int offset)
{
- return get_user_regs(task)->uregs[offset];
+ return task_pt_regs(task)->uregs[offset];
}
/*
@@ -74,7 +59,7 @@ static inline long get_user_reg(struct task_struct *task, int offset)
static inline int
put_user_reg(struct task_struct *task, int offset, long data)
{
- struct pt_regs newregs, *regs = get_user_regs(task);
+ struct pt_regs newregs, *regs = task_pt_regs(task);
int ret = -EINVAL;
newregs = *regs;
@@ -377,7 +362,7 @@ void ptrace_set_bpt(struct task_struct *child)
u32 insn;
int res;
- regs = get_user_regs(child);
+ regs = task_pt_regs(child);
pc = instruction_pointer(regs);
res = read_instr(child, pc, &insn);
@@ -500,7 +485,7 @@ static int ptrace_write_user(struct task_struct *tsk, unsigned long off,
*/
static int ptrace_getregs(struct task_struct *tsk, void *uregs)
{
- struct pt_regs *regs = get_user_regs(tsk);
+ struct pt_regs *regs = task_pt_regs(tsk);
return copy_to_user(uregs, regs, sizeof(struct pt_regs)) ? -EFAULT : 0;
}
@@ -515,7 +500,7 @@ static int ptrace_setregs(struct task_struct *tsk, void *uregs)
ret = -EFAULT;
if (copy_from_user(&newregs, uregs, sizeof(struct pt_regs)) == 0) {
- struct pt_regs *regs = get_user_regs(tsk);
+ struct pt_regs *regs = task_pt_regs(tsk);
ret = -EINVAL;
if (valid_user_regs(&newregs)) {
@@ -532,7 +517,7 @@ static int ptrace_setregs(struct task_struct *tsk, void *uregs)
*/
static int ptrace_getfpregs(struct task_struct *tsk, void *ufp)
{
- return copy_to_user(ufp, &tsk->thread_info->fpstate,
+ return copy_to_user(ufp, &task_thread_info(tsk)->fpstate,
sizeof(struct user_fp)) ? -EFAULT : 0;
}
@@ -542,7 +527,7 @@ static int ptrace_getfpregs(struct task_struct *tsk, void *ufp)
static int ptrace_setfpregs(struct task_struct *tsk, void *ufp)
{
set_stopped_child_used_math(tsk);
- return copy_from_user(&tsk->thread_info->fpstate, ufp,
+ return copy_from_user(&task_threas_info(tsk)->fpstate, ufp,
sizeof(struct user_fp)) ? -EFAULT : 0;
}
diff --git a/trunk/arch/arm26/kernel/traps.c b/trunk/arch/arm26/kernel/traps.c
index f64f59022392..5847ea5d7747 100644
--- a/trunk/arch/arm26/kernel/traps.c
+++ b/trunk/arch/arm26/kernel/traps.c
@@ -132,7 +132,7 @@ static void dump_instr(struct pt_regs *regs)
/*static*/ void __dump_stack(struct task_struct *tsk, unsigned long sp)
{
- dump_mem("Stack: ", sp, 8192+(unsigned long)tsk->thread_info);
+ dump_mem("Stack: ", sp, 8192+(unsigned long)task_stack_page(tsk));
}
void dump_stack(void)
@@ -158,7 +158,7 @@ void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
} else if (verify_stack(fp)) {
printk("invalid frame pointer 0x%08x", fp);
ok = 0;
- } else if (fp < (unsigned long)(tsk->thread_info + 1))
+ } else if (fp < (unsigned long)end_of_stack(tsk))
printk("frame pointer underflow");
printk("\n");
@@ -168,7 +168,7 @@ void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
/* FIXME - this is probably wrong.. */
void show_stack(struct task_struct *task, unsigned long *sp) {
- dump_mem("Stack: ", (unsigned long)sp, 8192+(unsigned long)task->thread_info);
+ dump_mem("Stack: ", (unsigned long)sp, 8192+(unsigned long)task_stack_page(task));
}
DEFINE_SPINLOCK(die_lock);
@@ -187,7 +187,7 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
printk("CPU: %d\n", smp_processor_id());
show_regs(regs);
printk("Process %s (pid: %d, stack limit = 0x%p)\n",
- current->comm, current->pid, tsk->thread_info + 1);
+ current->comm, current->pid, end_of_stack(tsk));
if (!user_mode(regs) || in_interrupt()) {
__dump_stack(tsk, (unsigned long)(regs + 1));
diff --git a/trunk/arch/cris/arch-v10/drivers/ds1302.c b/trunk/arch/cris/arch-v10/drivers/ds1302.c
index 10795f67f687..b100f26497c4 100644
--- a/trunk/arch/cris/arch-v10/drivers/ds1302.c
+++ b/trunk/arch/cris/arch-v10/drivers/ds1302.c
@@ -148,6 +148,7 @@
#include
#include
#include
+#include
#include
#include
diff --git a/trunk/arch/cris/arch-v10/drivers/pcf8563.c b/trunk/arch/cris/arch-v10/drivers/pcf8563.c
index f2c55742e90c..af517c210383 100644
--- a/trunk/arch/cris/arch-v10/drivers/pcf8563.c
+++ b/trunk/arch/cris/arch-v10/drivers/pcf8563.c
@@ -28,6 +28,7 @@
#include
#include
#include
+#include
#include
#include
diff --git a/trunk/arch/cris/arch-v10/kernel/process.c b/trunk/arch/cris/arch-v10/kernel/process.c
index 69e28b4057e8..0a675ce9e099 100644
--- a/trunk/arch/cris/arch-v10/kernel/process.c
+++ b/trunk/arch/cris/arch-v10/kernel/process.c
@@ -79,7 +79,7 @@ void hard_reset_now (void)
*/
unsigned long thread_saved_pc(struct task_struct *t)
{
- return (unsigned long)user_regs(t->thread_info)->irp;
+ return task_pt_regs(t)->irp;
}
static void kernel_thread_helper(void* dummy, int (*fn)(void *), void * arg)
@@ -128,7 +128,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
* remember that the task_struct doubles as the kernel stack for the task
*/
- childregs = user_regs(p->thread_info);
+ childregs = task_pt_regs(p);
*childregs = *regs; /* struct copy of pt_regs */
diff --git a/trunk/arch/cris/arch-v10/kernel/ptrace.c b/trunk/arch/cris/arch-v10/kernel/ptrace.c
index 6cbd34a27b90..f214f74f264e 100644
--- a/trunk/arch/cris/arch-v10/kernel/ptrace.c
+++ b/trunk/arch/cris/arch-v10/kernel/ptrace.c
@@ -37,7 +37,7 @@ inline long get_reg(struct task_struct *task, unsigned int regno)
if (regno == PT_USP)
return task->thread.usp;
else if (regno < PT_MAX)
- return ((unsigned long *)user_regs(task->thread_info))[regno];
+ return ((unsigned long *)task_pt_regs(task))[regno];
else
return 0;
}
@@ -51,7 +51,7 @@ inline int put_reg(struct task_struct *task, unsigned int regno,
if (regno == PT_USP)
task->thread.usp = data;
else if (regno < PT_MAX)
- ((unsigned long *)user_regs(task->thread_info))[regno] = data;
+ ((unsigned long *)task_pt_regs(task))[regno] = data;
else
return -1;
return 0;
diff --git a/trunk/arch/cris/arch-v32/kernel/process.c b/trunk/arch/cris/arch-v32/kernel/process.c
index 882be42114f7..843513102d3c 100644
--- a/trunk/arch/cris/arch-v32/kernel/process.c
+++ b/trunk/arch/cris/arch-v32/kernel/process.c
@@ -96,7 +96,7 @@ hard_reset_now(void)
*/
unsigned long thread_saved_pc(struct task_struct *t)
{
- return (unsigned long)user_regs(t->thread_info)->erp;
+ return task_pt_regs(t)->erp;
}
static void
@@ -148,7 +148,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
* fix it up. Note: the task_struct doubles as the kernel stack for the
* task.
*/
- childregs = user_regs(p->thread_info);
+ childregs = task_pt_regs(p);
*childregs = *regs; /* Struct copy of pt_regs. */
p->set_child_tid = p->clear_child_tid = NULL;
childregs->r10 = 0; /* Child returns 0 after a fork/clone. */
@@ -157,7 +157,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
* The TLS is in $mof beacuse it is the 5th argument to sys_clone.
*/
if (p->mm && (clone_flags & CLONE_SETTLS)) {
- p->thread_info->tls = regs->mof;
+ task_thread_info(p)->tls = regs->mof;
}
/* Put the switch stack right below the pt_regs. */
diff --git a/trunk/arch/cris/arch-v32/kernel/ptrace.c b/trunk/arch/cris/arch-v32/kernel/ptrace.c
index 5528b83a622b..82cf2e3624a4 100644
--- a/trunk/arch/cris/arch-v32/kernel/ptrace.c
+++ b/trunk/arch/cris/arch-v32/kernel/ptrace.c
@@ -46,7 +46,7 @@ long get_reg(struct task_struct *task, unsigned int regno)
unsigned long ret;
if (regno <= PT_EDA)
- ret = ((unsigned long *)user_regs(task->thread_info))[regno];
+ ret = ((unsigned long *)task_pt_regs(task))[regno];
else if (regno == PT_USP)
ret = task->thread.usp;
else if (regno == PT_PPC)
@@ -65,13 +65,13 @@ long get_reg(struct task_struct *task, unsigned int regno)
int put_reg(struct task_struct *task, unsigned int regno, unsigned long data)
{
if (regno <= PT_EDA)
- ((unsigned long *)user_regs(task->thread_info))[regno] = data;
+ ((unsigned long *)task_pt_regs(task))[regno] = data;
else if (regno == PT_USP)
task->thread.usp = data;
else if (regno == PT_PPC) {
/* Write pseudo-PC to ERP only if changed. */
if (data != get_pseudo_pc(task))
- ((unsigned long *)user_regs(task->thread_info))[PT_ERP] = data;
+ task_pt_regs(task)->erp = data;
} else if (regno <= PT_MAX)
return put_debugreg(task->pid, regno, data);
else
diff --git a/trunk/arch/cris/arch-v32/kernel/smp.c b/trunk/arch/cris/arch-v32/kernel/smp.c
index 13867f4fad16..da40d19a151e 100644
--- a/trunk/arch/cris/arch-v32/kernel/smp.c
+++ b/trunk/arch/cris/arch-v32/kernel/smp.c
@@ -113,10 +113,10 @@ smp_boot_one_cpu(int cpuid)
if (IS_ERR(idle))
panic("SMP: fork failed for CPU:%d", cpuid);
- idle->thread_info->cpu = cpuid;
+ task_thread_info(idle)->cpu = cpuid;
/* Information to the CPU that is about to boot */
- smp_init_current_idle_thread = idle->thread_info;
+ smp_init_current_idle_thread = task_thread_info(idle);
cpu_now_booting = cpuid;
/* Wait for CPU to come online */
diff --git a/trunk/arch/cris/arch-v32/mm/tlb.c b/trunk/arch/cris/arch-v32/mm/tlb.c
index b08a28bb58ab..9d75d7692303 100644
--- a/trunk/arch/cris/arch-v32/mm/tlb.c
+++ b/trunk/arch/cris/arch-v32/mm/tlb.c
@@ -198,9 +198,9 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next,
per_cpu(current_pgd, cpu) = next->pgd;
/* Switch context in the MMU. */
- if (tsk && tsk->thread_info)
+ if (tsk && task_thread_info(tsk))
{
- SPEC_REG_WR(SPEC_REG_PID, next->context.page_id | tsk->thread_info->tls);
+ SPEC_REG_WR(SPEC_REG_PID, next->context.page_id | task_thread_info(tsk)->tls);
}
else
{
diff --git a/trunk/arch/frv/kernel/process.c b/trunk/arch/frv/kernel/process.c
index c4488379ac3b..0fff8a61ef2a 100644
--- a/trunk/arch/frv/kernel/process.c
+++ b/trunk/arch/frv/kernel/process.c
@@ -204,7 +204,7 @@ int copy_thread(int nr, unsigned long clone_flags,
regs0 = __kernel_frame0_ptr;
childregs0 = (struct pt_regs *)
- ((unsigned long) p->thread_info + THREAD_SIZE - USER_CONTEXT_SIZE);
+ (task_stack_page(p) + THREAD_SIZE - USER_CONTEXT_SIZE);
childregs = childregs0;
/* set up the userspace frame (the only place that the USP is stored) */
@@ -220,7 +220,7 @@ int copy_thread(int nr, unsigned long clone_flags,
*childregs = *regs;
childregs->sp = (unsigned long) childregs0;
childregs->next_frame = childregs0;
- childregs->gr15 = (unsigned long) p->thread_info;
+ childregs->gr15 = (unsigned long) task_thread_info(p);
childregs->gr29 = (unsigned long) p;
}
diff --git a/trunk/arch/h8300/kernel/process.c b/trunk/arch/h8300/kernel/process.c
index 585ed5efd0f7..ed79ae20e88d 100644
--- a/trunk/arch/h8300/kernel/process.c
+++ b/trunk/arch/h8300/kernel/process.c
@@ -195,7 +195,7 @@ int copy_thread(int nr, unsigned long clone_flags,
{
struct pt_regs * childregs;
- childregs = ((struct pt_regs *) (THREAD_SIZE + (unsigned long) p->thread_info)) - 1;
+ childregs = (struct pt_regs *) (THREAD_SIZE + task_stack_page(p)) - 1;
*childregs = *regs;
childregs->retpc = (unsigned long) ret_from_fork;
diff --git a/trunk/arch/i386/Kconfig b/trunk/arch/i386/Kconfig
index 815878ebd30f..d5d0df7f04fc 100644
--- a/trunk/arch/i386/Kconfig
+++ b/trunk/arch/i386/Kconfig
@@ -41,8 +41,21 @@ config ARCH_MAY_HAVE_PC_FDC
bool
default y
+config DMI
+ bool
+ default y
+
source "init/Kconfig"
+config DOUBLEFAULT
+ default y
+ bool "Enable doublefault exception handler" if EMBEDDED
+ help
+ This option allows trapping of rare doublefault exceptions that
+ would otherwise cause a system to silently reboot. Disabling this
+ option saves about 4k and might cause you much additional grey
+ hair.
+
menu "Processor type and features"
choice
diff --git a/trunk/arch/i386/kernel/acpi/boot.c b/trunk/arch/i386/kernel/acpi/boot.c
index 447fa9e33ffb..2111529dea77 100644
--- a/trunk/arch/i386/kernel/acpi/boot.c
+++ b/trunk/arch/i386/kernel/acpi/boot.c
@@ -108,7 +108,7 @@ char *__acpi_map_table(unsigned long phys_addr, unsigned long size)
if (!phys_addr || !size)
return NULL;
- if (phys_addr < (end_pfn_map << PAGE_SHIFT))
+ if (phys_addr+size <= (end_pfn_map << PAGE_SHIFT) + PAGE_SIZE)
return __va(phys_addr);
return NULL;
diff --git a/trunk/arch/i386/kernel/apic.c b/trunk/arch/i386/kernel/apic.c
index d8f94e78de8a..acd3f1e34ca6 100644
--- a/trunk/arch/i386/kernel/apic.c
+++ b/trunk/arch/i386/kernel/apic.c
@@ -26,6 +26,7 @@
#include
#include
#include
+#include
#include
#include
@@ -37,9 +38,16 @@
#include
#include
+#include
#include "io_ports.h"
+/*
+ * cpu_mask that denotes the CPUs that needs timer interrupt coming in as
+ * IPIs in place of local APIC timers
+ */
+static cpumask_t timer_bcast_ipi;
+
/*
* Knob to control our willingness to enable the local APIC.
*/
@@ -92,10 +100,6 @@ void __init apic_intr_init(void)
/* Using APIC to generate smp_local_timer_interrupt? */
int using_apic_timer = 0;
-static DEFINE_PER_CPU(int, prof_multiplier) = 1;
-static DEFINE_PER_CPU(int, prof_old_multiplier) = 1;
-static DEFINE_PER_CPU(int, prof_counter) = 1;
-
static int enabled_via_apicbase;
void enable_NMI_through_LVT0 (void * dummy)
@@ -935,11 +939,16 @@ void (*wait_timer_tick)(void) __devinitdata = wait_8254_wraparound;
static void __setup_APIC_LVTT(unsigned int clocks)
{
unsigned int lvtt_value, tmp_value, ver;
+ int cpu = smp_processor_id();
ver = GET_APIC_VERSION(apic_read(APIC_LVR));
lvtt_value = APIC_LVT_TIMER_PERIODIC | LOCAL_TIMER_VECTOR;
if (!APIC_INTEGRATED(ver))
lvtt_value |= SET_APIC_TIMER_BASE(APIC_TIMER_BASE_DIV);
+
+ if (cpu_isset(cpu, timer_bcast_ipi))
+ lvtt_value |= APIC_LVT_MASKED;
+
apic_write_around(APIC_LVTT, lvtt_value);
/*
@@ -1072,7 +1081,7 @@ void __devinit setup_secondary_APIC_clock(void)
setup_APIC_timer(calibration_result);
}
-void __devinit disable_APIC_timer(void)
+void disable_APIC_timer(void)
{
if (using_apic_timer) {
unsigned long v;
@@ -1084,7 +1093,10 @@ void __devinit disable_APIC_timer(void)
void enable_APIC_timer(void)
{
- if (using_apic_timer) {
+ int cpu = smp_processor_id();
+
+ if (using_apic_timer &&
+ !cpu_isset(cpu, timer_bcast_ipi)) {
unsigned long v;
v = apic_read(APIC_LVTT);
@@ -1092,33 +1104,31 @@ void enable_APIC_timer(void)
}
}
-/*
- * the frequency of the profiling timer can be changed
- * by writing a multiplier value into /proc/profile.
- */
-int setup_profiling_timer(unsigned int multiplier)
+void switch_APIC_timer_to_ipi(void *cpumask)
{
- int i;
+ cpumask_t mask = *(cpumask_t *)cpumask;
+ int cpu = smp_processor_id();
- /*
- * Sanity check. [at least 500 APIC cycles should be
- * between APIC interrupts as a rule of thumb, to avoid
- * irqs flooding us]
- */
- if ( (!multiplier) || (calibration_result/multiplier < 500))
- return -EINVAL;
-
- /*
- * Set the new multiplier for each CPU. CPUs don't start using the
- * new values until the next timer interrupt in which they do process
- * accounting. At that time they also adjust their APIC timers
- * accordingly.
- */
- for (i = 0; i < NR_CPUS; ++i)
- per_cpu(prof_multiplier, i) = multiplier;
+ if (cpu_isset(cpu, mask) &&
+ !cpu_isset(cpu, timer_bcast_ipi)) {
+ disable_APIC_timer();
+ cpu_set(cpu, timer_bcast_ipi);
+ }
+}
+EXPORT_SYMBOL(switch_APIC_timer_to_ipi);
- return 0;
+void switch_ipi_to_APIC_timer(void *cpumask)
+{
+ cpumask_t mask = *(cpumask_t *)cpumask;
+ int cpu = smp_processor_id();
+
+ if (cpu_isset(cpu, mask) &&
+ cpu_isset(cpu, timer_bcast_ipi)) {
+ cpu_clear(cpu, timer_bcast_ipi);
+ enable_APIC_timer();
+ }
}
+EXPORT_SYMBOL(switch_ipi_to_APIC_timer);
#undef APIC_DIVISOR
@@ -1134,32 +1144,10 @@ int setup_profiling_timer(unsigned int multiplier)
inline void smp_local_timer_interrupt(struct pt_regs * regs)
{
- int cpu = smp_processor_id();
-
profile_tick(CPU_PROFILING, regs);
- if (--per_cpu(prof_counter, cpu) <= 0) {
- /*
- * The multiplier may have changed since the last time we got
- * to this point as a result of the user writing to
- * /proc/profile. In this case we need to adjust the APIC
- * timer accordingly.
- *
- * Interrupts are already masked off at this point.
- */
- per_cpu(prof_counter, cpu) = per_cpu(prof_multiplier, cpu);
- if (per_cpu(prof_counter, cpu) !=
- per_cpu(prof_old_multiplier, cpu)) {
- __setup_APIC_LVTT(
- calibration_result/
- per_cpu(prof_counter, cpu));
- per_cpu(prof_old_multiplier, cpu) =
- per_cpu(prof_counter, cpu);
- }
-
#ifdef CONFIG_SMP
- update_process_times(user_mode_vm(regs));
+ update_process_times(user_mode_vm(regs));
#endif
- }
/*
* We take the 'long' return path, and there every subsystem
@@ -1206,6 +1194,43 @@ fastcall void smp_apic_timer_interrupt(struct pt_regs *regs)
irq_exit();
}
+#ifndef CONFIG_SMP
+static void up_apic_timer_interrupt_call(struct pt_regs *regs)
+{
+ int cpu = smp_processor_id();
+
+ /*
+ * the NMI deadlock-detector uses this.
+ */
+ per_cpu(irq_stat, cpu).apic_timer_irqs++;
+
+ smp_local_timer_interrupt(regs);
+}
+#endif
+
+void smp_send_timer_broadcast_ipi(struct pt_regs *regs)
+{
+ cpumask_t mask;
+
+ cpus_and(mask, cpu_online_map, timer_bcast_ipi);
+ if (!cpus_empty(mask)) {
+#ifdef CONFIG_SMP
+ send_IPI_mask(mask, LOCAL_TIMER_VECTOR);
+#else
+ /*
+ * We can directly call the apic timer interrupt handler
+ * in UP case. Minus all irq related functions
+ */
+ up_apic_timer_interrupt_call(regs);
+#endif
+ }
+}
+
+int setup_profiling_timer(unsigned int multiplier)
+{
+ return -EINVAL;
+}
+
/*
* This interrupt should _never_ happen with our APIC/SMP architecture
*/
diff --git a/trunk/arch/i386/kernel/apm.c b/trunk/arch/i386/kernel/apm.c
index 9d8827156e54..05312a8abb8b 100644
--- a/trunk/arch/i386/kernel/apm.c
+++ b/trunk/arch/i386/kernel/apm.c
@@ -219,6 +219,7 @@
#include
#include
#include
+#include
#include
#include
#include
diff --git a/trunk/arch/i386/kernel/cpu/amd.c b/trunk/arch/i386/kernel/cpu/amd.c
index e7697e077f6b..333578a4e91a 100644
--- a/trunk/arch/i386/kernel/cpu/amd.c
+++ b/trunk/arch/i386/kernel/cpu/amd.c
@@ -216,6 +216,12 @@ static void __init init_amd(struct cpuinfo_x86 *c)
c->x86_max_cores = 1;
}
+ if (cpuid_eax(0x80000000) >= 0x80000007) {
+ c->x86_power = cpuid_edx(0x80000007);
+ if (c->x86_power & (1<<8))
+ set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
+ }
+
#ifdef CONFIG_X86_HT
/*
* On a AMD dual core setup the lower bits of the APIC id
@@ -233,6 +239,7 @@ static void __init init_amd(struct cpuinfo_x86 *c)
cpu, c->x86_max_cores, cpu_core_id[cpu]);
}
#endif
+
}
static unsigned int amd_size_cache(struct cpuinfo_x86 * c, unsigned int size)
diff --git a/trunk/arch/i386/kernel/cpu/common.c b/trunk/arch/i386/kernel/cpu/common.c
index 170400879f44..15aee26ec2b6 100644
--- a/trunk/arch/i386/kernel/cpu/common.c
+++ b/trunk/arch/i386/kernel/cpu/common.c
@@ -204,7 +204,10 @@ static int __devinit have_cpuid_p(void)
/* Do minimum CPU detection early.
Fields really needed: vendor, cpuid_level, family, model, mask, cache alignment.
- The others are not touched to avoid unwanted side effects. */
+ The others are not touched to avoid unwanted side effects.
+
+ WARNING: this function is only called on the BP. Don't add code here
+ that is supposed to run on all CPUs. */
static void __init early_cpu_detect(void)
{
struct cpuinfo_x86 *c = &boot_cpu_data;
@@ -236,12 +239,6 @@ static void __init early_cpu_detect(void)
if (cap0 & (1<<19))
c->x86_cache_alignment = ((misc >> 8) & 0xff) * 8;
}
-
- early_intel_workaround(c);
-
-#ifdef CONFIG_X86_HT
- phys_proc_id[smp_processor_id()] = (cpuid_ebx(1) >> 24) & 0xff;
-#endif
}
void __devinit generic_identify(struct cpuinfo_x86 * c)
@@ -289,6 +286,12 @@ void __devinit generic_identify(struct cpuinfo_x86 * c)
get_model_name(c); /* Default name */
}
}
+
+ early_intel_workaround(c);
+
+#ifdef CONFIG_X86_HT
+ phys_proc_id[smp_processor_id()] = (cpuid_ebx(1) >> 24) & 0xff;
+#endif
}
static void __devinit squash_the_stupid_serial_number(struct cpuinfo_x86 *c)
diff --git a/trunk/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/trunk/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
index 871366b83b3f..7975e79d5fa4 100644
--- a/trunk/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/trunk/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -40,8 +40,6 @@
#include
#include
-#include "speedstep-est-common.h"
-
#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "acpi-cpufreq", msg)
MODULE_AUTHOR("Paul Diefenbaugh, Dominik Brodowski");
@@ -367,6 +365,7 @@ acpi_cpufreq_cpu_init (
unsigned int cpu = policy->cpu;
struct cpufreq_acpi_io *data;
unsigned int result = 0;
+ struct cpuinfo_x86 *c = &cpu_data[policy->cpu];
union acpi_object arg0 = {ACPI_TYPE_BUFFER};
u32 arg0_buf[3];
@@ -390,7 +389,7 @@ acpi_cpufreq_cpu_init (
if (result)
goto err_free;
- if (is_const_loops_cpu(cpu)) {
+ if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
}
diff --git a/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
index edb9873e27e3..9a826cde4fd1 100644
--- a/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -35,8 +35,6 @@
#include
#include
-#include "speedstep-est-common.h"
-
#define PFX "speedstep-centrino: "
#define MAINTAINER "Jeremy Fitzhardinge "
@@ -493,12 +491,13 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
unsigned l, h;
int ret;
int i;
+ struct cpuinfo_x86 *c = &cpu_data[policy->cpu];
/* Only Intel makes Enhanced Speedstep-capable CPUs */
if (cpu->x86_vendor != X86_VENDOR_INTEL || !cpu_has(cpu, X86_FEATURE_EST))
return -ENODEV;
- if (is_const_loops_cpu(policy->cpu)) {
+ if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
}
diff --git a/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-est-common.h b/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-est-common.h
deleted file mode 100644
index 5ce995c9d866..000000000000
--- a/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-est-common.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Routines common for drivers handling Enhanced Speedstep Technology
- * Copyright (C) 2004 Venkatesh Pallipadi
- *
- * Licensed under the terms of the GNU GPL License version 2 -- see
- * COPYING for details.
- */
-
-static inline int is_const_loops_cpu(unsigned int cpu)
-{
- struct cpuinfo_x86 *c = cpu_data + cpu;
-
- if (c->x86_vendor != X86_VENDOR_INTEL || !cpu_has(c, X86_FEATURE_EST))
- return 0;
-
- /*
- * on P-4s, the TSC runs with constant frequency independent of cpu freq
- * when we use EST
- */
- if (c->x86 == 0xf)
- return 1;
-
- return 0;
-}
-
diff --git a/trunk/arch/i386/kernel/cpu/intel.c b/trunk/arch/i386/kernel/cpu/intel.c
index 5e2da704f0fa..8c0120186b9f 100644
--- a/trunk/arch/i386/kernel/cpu/intel.c
+++ b/trunk/arch/i386/kernel/cpu/intel.c
@@ -183,10 +183,13 @@ static void __devinit init_intel(struct cpuinfo_x86 *c)
}
#endif
- if (c->x86 == 15)
+ if (c->x86 == 15)
set_bit(X86_FEATURE_P4, c->x86_capability);
if (c->x86 == 6)
set_bit(X86_FEATURE_P3, c->x86_capability);
+ if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
+ (c->x86 == 0x6 && c->x86_model >= 0x0e))
+ set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
}
diff --git a/trunk/arch/i386/kernel/cpu/mtrr/if.c b/trunk/arch/i386/kernel/cpu/mtrr/if.c
index cf39e205d33c..5ac051bb9d55 100644
--- a/trunk/arch/i386/kernel/cpu/mtrr/if.c
+++ b/trunk/arch/i386/kernel/cpu/mtrr/if.c
@@ -1,5 +1,6 @@
#include
#include
+#include
#include
#include
#include
diff --git a/trunk/arch/i386/kernel/cpu/proc.c b/trunk/arch/i386/kernel/cpu/proc.c
index 6d91b274589c..89a85af33d28 100644
--- a/trunk/arch/i386/kernel/cpu/proc.c
+++ b/trunk/arch/i386/kernel/cpu/proc.c
@@ -29,7 +29,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL,
- NULL, "fxsr_opt", NULL, NULL, NULL, "lm", "3dnowext", "3dnow",
+ NULL, "fxsr_opt", "rdtscp", NULL, NULL, "lm", "3dnowext", "3dnow",
/* Transmeta-defined */
"recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL,
@@ -40,7 +40,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
/* Other (Linux-defined) */
"cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr",
NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ "constant_tsc", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
@@ -57,11 +57,21 @@ static int show_cpuinfo(struct seq_file *m, void *v)
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* AMD-defined (#2) */
- "lahf_lm", "cmp_legacy", NULL, NULL, NULL, NULL, NULL, NULL,
+ "lahf_lm", "cmp_legacy", "svm", NULL, "cr8legacy", NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
};
+ static char *x86_power_flags[] = {
+ "ts", /* temperature sensor */
+ "fid", /* frequency id control */
+ "vid", /* voltage id control */
+ "ttp", /* thermal trip */
+ "tm",
+ "stc",
+ NULL,
+ /* nothing */ /* constant_tsc - moved to flags */
+ };
struct cpuinfo_x86 *c = v;
int i, n = c - cpu_data;
int fpu_exception;
@@ -131,6 +141,17 @@ static int show_cpuinfo(struct seq_file *m, void *v)
x86_cap_flags[i] != NULL )
seq_printf(m, " %s", x86_cap_flags[i]);
+ for (i = 0; i < 32; i++)
+ if (c->x86_power & (1 << i)) {
+ if (i < ARRAY_SIZE(x86_power_flags) &&
+ x86_power_flags[i])
+ seq_printf(m, "%s%s",
+ x86_power_flags[i][0]?" ":"",
+ x86_power_flags[i]);
+ else
+ seq_printf(m, " [%d]", i);
+ }
+
seq_printf(m, "\nbogomips\t: %lu.%02lu\n\n",
c->loops_per_jiffy/(500000/HZ),
(c->loops_per_jiffy/(5000/HZ)) % 100);
diff --git a/trunk/arch/i386/kernel/dmi_scan.c b/trunk/arch/i386/kernel/dmi_scan.c
index 58516e2ac172..6a93d75db431 100644
--- a/trunk/arch/i386/kernel/dmi_scan.c
+++ b/trunk/arch/i386/kernel/dmi_scan.c
@@ -4,7 +4,7 @@
#include
#include
#include
-
+#include
static char * __init dmi_string(struct dmi_header *dm, u8 s)
{
@@ -19,7 +19,7 @@ static char * __init dmi_string(struct dmi_header *dm, u8 s)
}
if (*bp != 0) {
- str = alloc_bootmem(strlen(bp) + 1);
+ str = dmi_alloc(strlen(bp) + 1);
if (str != NULL)
strcpy(str, bp);
else
@@ -40,7 +40,7 @@ static int __init dmi_table(u32 base, int len, int num,
u8 *buf, *data;
int i = 0;
- buf = bt_ioremap(base, len);
+ buf = dmi_ioremap(base, len);
if (buf == NULL)
return -1;
@@ -65,7 +65,7 @@ static int __init dmi_table(u32 base, int len, int num,
data += 2;
i++;
}
- bt_iounmap(buf, len);
+ dmi_iounmap(buf, len);
return 0;
}
@@ -112,7 +112,7 @@ static void __init dmi_save_devices(struct dmi_header *dm)
if ((*d & 0x80) == 0)
continue;
- dev = alloc_bootmem(sizeof(*dev));
+ dev = dmi_alloc(sizeof(*dev));
if (!dev) {
printk(KERN_ERR "dmi_save_devices: out of memory.\n");
break;
@@ -131,7 +131,7 @@ static void __init dmi_save_ipmi_device(struct dmi_header *dm)
struct dmi_device *dev;
void * data;
- data = alloc_bootmem(dm->length);
+ data = dmi_alloc(dm->length);
if (data == NULL) {
printk(KERN_ERR "dmi_save_ipmi_device: out of memory.\n");
return;
@@ -139,7 +139,7 @@ static void __init dmi_save_ipmi_device(struct dmi_header *dm)
memcpy(data, dm, dm->length);
- dev = alloc_bootmem(sizeof(*dev));
+ dev = dmi_alloc(sizeof(*dev));
if (!dev) {
printk(KERN_ERR "dmi_save_ipmi_device: out of memory.\n");
return;
@@ -221,7 +221,7 @@ void __init dmi_scan_machine(void)
}
}
-out: printk(KERN_INFO "DMI not present.\n");
+out: printk(KERN_INFO "DMI not present or invalid.\n");
}
diff --git a/trunk/arch/i386/kernel/io_apic.c b/trunk/arch/i386/kernel/io_apic.c
index 7554f8fd874a..f2dd218d88cb 100644
--- a/trunk/arch/i386/kernel/io_apic.c
+++ b/trunk/arch/i386/kernel/io_apic.c
@@ -1649,7 +1649,7 @@ static void __init enable_IO_APIC(void)
for(apic = 0; apic < nr_ioapics; apic++) {
int pin;
/* See if any of the pins is in ExtINT mode */
- for(pin = 0; pin < nr_ioapic_registers[i]; pin++) {
+ for (pin = 0; pin < nr_ioapic_registers[apic]; pin++) {
struct IO_APIC_route_entry entry;
spin_lock_irqsave(&ioapic_lock, flags);
*(((int *)&entry) + 0) = io_apic_read(apic, 0x10 + 2 * pin);
diff --git a/trunk/arch/i386/kernel/ioport.c b/trunk/arch/i386/kernel/ioport.c
index b59a34dbe262..79026f026b85 100644
--- a/trunk/arch/i386/kernel/ioport.c
+++ b/trunk/arch/i386/kernel/ioport.c
@@ -7,6 +7,7 @@
#include
#include
+#include
#include
#include
#include
diff --git a/trunk/arch/i386/kernel/kprobes.c b/trunk/arch/i386/kernel/kprobes.c
index 2f372dbd34fd..6483eeb1a4e8 100644
--- a/trunk/arch/i386/kernel/kprobes.c
+++ b/trunk/arch/i386/kernel/kprobes.c
@@ -188,6 +188,19 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
kcb->kprobe_status = KPROBE_REENTER;
return 1;
} else {
+ if (regs->eflags & VM_MASK) {
+ /* We are in virtual-8086 mode. Return 0 */
+ goto no_kprobe;
+ }
+ if (*addr != BREAKPOINT_INSTRUCTION) {
+ /* The breakpoint instruction was removed by
+ * another cpu right after we hit, no further
+ * handling of this interrupt is appropriate
+ */
+ regs->eip -= sizeof(kprobe_opcode_t);
+ ret = 1;
+ goto no_kprobe;
+ }
p = __get_cpu_var(current_kprobe);
if (p->break_handler && p->break_handler(p, regs)) {
goto ss_probe;
diff --git a/trunk/arch/i386/kernel/microcode.c b/trunk/arch/i386/kernel/microcode.c
index 165f13158c60..d3fdf0057d82 100644
--- a/trunk/arch/i386/kernel/microcode.c
+++ b/trunk/arch/i386/kernel/microcode.c
@@ -70,6 +70,7 @@
*/
//#define DEBUG /* pr_debug */
+#include
#include
#include
#include
@@ -165,7 +166,7 @@ static void collect_cpu_info (void *unused)
wrmsr(MSR_IA32_UCODE_REV, 0, 0);
/* see notes above for revision 1.07. Apparent chip bug */
- serialize_cpu();
+ sync_core();
/* get the current revision from MSR 0x8B */
rdmsr(MSR_IA32_UCODE_REV, val[0], uci->rev);
pr_debug("microcode: collect_cpu_info : sig=0x%x, pf=0x%x, rev=0x%x\n",
@@ -379,7 +380,7 @@ static void do_update_one (void * unused)
wrmsr(MSR_IA32_UCODE_REV, 0, 0);
/* see notes above for revision 1.07. Apparent chip bug */
- serialize_cpu();
+ sync_core();
/* get the current revision from MSR 0x8B */
rdmsr(MSR_IA32_UCODE_REV, val[0], val[1]);
diff --git a/trunk/arch/i386/kernel/process.c b/trunk/arch/i386/kernel/process.c
index 035928f3f6c1..2185377fdde1 100644
--- a/trunk/arch/i386/kernel/process.c
+++ b/trunk/arch/i386/kernel/process.c
@@ -424,18 +424,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
struct task_struct *tsk;
int err;
- childregs = ((struct pt_regs *) (THREAD_SIZE + (unsigned long) p->thread_info)) - 1;
- /*
- * The below -8 is to reserve 8 bytes on top of the ring0 stack.
- * This is necessary to guarantee that the entire "struct pt_regs"
- * is accessable even if the CPU haven't stored the SS/ESP registers
- * on the stack (interrupt gate does not save these registers
- * when switching to the same priv ring).
- * Therefore beware: accessing the xss/esp fields of the
- * "struct pt_regs" is possible, but they may contain the
- * completely wrong values.
- */
- childregs = (struct pt_regs *) ((unsigned long) childregs - 8);
+ childregs = task_pt_regs(p);
*childregs = *regs;
childregs->eax = 0;
childregs->esp = esp;
@@ -540,12 +529,7 @@ EXPORT_SYMBOL(dump_thread);
*/
int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
{
- struct pt_regs ptregs;
-
- ptregs = *(struct pt_regs *)
- ((unsigned long)tsk->thread_info +
- /* see comments in copy_thread() about -8 */
- THREAD_SIZE - sizeof(ptregs) - 8);
+ struct pt_regs ptregs = *task_pt_regs(tsk);
ptregs.xcs &= 0xffff;
ptregs.xds &= 0xffff;
ptregs.xes &= 0xffff;
@@ -601,8 +585,8 @@ static inline void disable_tsc(struct task_struct *prev_p,
* gcc should eliminate the ->thread_info dereference if
* has_secure_computing returns 0 at compile time (SECCOMP=n).
*/
- prev = prev_p->thread_info;
- next = next_p->thread_info;
+ prev = task_thread_info(prev_p);
+ next = task_thread_info(next_p);
if (has_secure_computing(prev) || has_secure_computing(next)) {
/* slow path here */
@@ -787,7 +771,7 @@ unsigned long get_wchan(struct task_struct *p)
int count = 0;
if (!p || p == current || p->state == TASK_RUNNING)
return 0;
- stack_page = (unsigned long)p->thread_info;
+ stack_page = (unsigned long)task_stack_page(p);
esp = p->thread.esp;
if (!stack_page || esp < stack_page || esp > top_esp+stack_page)
return 0;
diff --git a/trunk/arch/i386/kernel/reboot.c b/trunk/arch/i386/kernel/reboot.c
index 2fa5803a759d..d207242976d3 100644
--- a/trunk/arch/i386/kernel/reboot.c
+++ b/trunk/arch/i386/kernel/reboot.c
@@ -12,6 +12,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -355,10 +356,10 @@ void machine_halt(void)
void machine_power_off(void)
{
- machine_shutdown();
-
- if (pm_power_off)
+ if (pm_power_off) {
+ machine_shutdown();
pm_power_off();
+ }
}
diff --git a/trunk/arch/i386/kernel/setup.c b/trunk/arch/i386/kernel/setup.c
index f685637a100d..51e513b4f72d 100644
--- a/trunk/arch/i386/kernel/setup.c
+++ b/trunk/arch/i386/kernel/setup.c
@@ -45,6 +45,7 @@
#include
#include
#include
+#include
#include