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yaml
---
r: 105776
b: refs/heads/master
c: 832fe9c
h: refs/heads/master
v: v3
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Linus Torvalds committed Jul 25, 2008
1 parent 94bde15 commit 7bd7861
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Showing 6 changed files with 82 additions and 68 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: e34f87256794b87e7f4a8f1812538be7b7b5214c
refs/heads/master: 832fe9c222c7d431c2bff5765a0ac61bcb3df8c8
53 changes: 53 additions & 0 deletions trunk/arch/x86/kernel/signal_64.c
Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,59 @@ sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
return do_sigaltstack(uss, uoss, regs->sp);
}

/*
* Signal frame handlers.
*/

static inline int save_i387(struct _fpstate __user *buf)
{
struct task_struct *tsk = current;
int err = 0;

BUILD_BUG_ON(sizeof(struct user_i387_struct) !=
sizeof(tsk->thread.xstate->fxsave));

if ((unsigned long)buf % 16)
printk("save_i387: bad fpstate %p\n", buf);

if (!used_math())
return 0;
clear_used_math(); /* trigger finit */
if (task_thread_info(tsk)->status & TS_USEDFPU) {
err = save_i387_checking((struct i387_fxsave_struct __user *)
buf);
if (err)
return err;
task_thread_info(tsk)->status &= ~TS_USEDFPU;
stts();
} else {
if (__copy_to_user(buf, &tsk->thread.xstate->fxsave,
sizeof(struct i387_fxsave_struct)))
return -1;
}
return 1;
}

/*
* This restores directly out of user space. Exceptions are handled.
*/
static inline int restore_i387(struct _fpstate __user *buf)
{
struct task_struct *tsk = current;
int err;

if (!used_math()) {
err = init_fpu(tsk);
if (err)
return err;
}

if (!(task_thread_info(current)->status & TS_USEDFPU)) {
clts();
task_thread_info(current)->status |= TS_USEDFPU;
}
return restore_fpu_checking((__force struct i387_fxsave_struct *)buf);
}

/*
* Do a signal return; undo the signal stack.
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36 changes: 25 additions & 11 deletions trunk/arch/x86/oprofile/nmi_int.c
Original file line number Diff line number Diff line change
Expand Up @@ -369,20 +369,34 @@ static int __init ppro_init(char **cpu_type)
{
__u8 cpu_model = boot_cpu_data.x86_model;

if (cpu_model == 14)
switch (cpu_model) {
case 0 ... 2:
*cpu_type = "i386/ppro";
break;
case 3 ... 5:
*cpu_type = "i386/pii";
break;
case 6 ... 8:
*cpu_type = "i386/piii";
break;
case 9:
*cpu_type = "i386/p6_mobile";
break;
case 10 ... 13:
*cpu_type = "i386/p6";
break;
case 14:
*cpu_type = "i386/core";
else if (cpu_model == 15 || cpu_model == 23)
break;
case 15: case 23:
*cpu_type = "i386/core_2";
break;
case 26:
*cpu_type = "i386/core_2";
else if (cpu_model > 0xd)
break;
default:
/* Unknown */
return 0;
else if (cpu_model == 9) {
*cpu_type = "i386/p6_mobile";
} else if (cpu_model > 5) {
*cpu_type = "i386/piii";
} else if (cpu_model > 2) {
*cpu_type = "i386/pii";
} else {
*cpu_type = "i386/ppro";
}

model = &op_ppro_spec;
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2 changes: 1 addition & 1 deletion trunk/fs/nfs/nfsroot.c
Original file line number Diff line number Diff line change
Expand Up @@ -127,7 +127,7 @@ enum {
Opt_err
};

static match_table_t __initdata tokens = {
static match_table_t __initconst tokens = {
{Opt_port, "port=%u"},
{Opt_rsize, "rsize=%u"},
{Opt_wsize, "wsize=%u"},
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54 changes: 0 additions & 54 deletions trunk/include/asm-x86/i387.h
Original file line number Diff line number Diff line change
Expand Up @@ -137,60 +137,6 @@ static inline void __save_init_fpu(struct task_struct *tsk)
task_thread_info(tsk)->status &= ~TS_USEDFPU;
}

/*
* Signal frame handlers.
*/

static inline int save_i387(struct _fpstate __user *buf)
{
struct task_struct *tsk = current;
int err = 0;

BUILD_BUG_ON(sizeof(struct user_i387_struct) !=
sizeof(tsk->thread.xstate->fxsave));

if ((unsigned long)buf % 16)
printk("save_i387: bad fpstate %p\n", buf);

if (!used_math())
return 0;
clear_used_math(); /* trigger finit */
if (task_thread_info(tsk)->status & TS_USEDFPU) {
err = save_i387_checking((struct i387_fxsave_struct __user *)
buf);
if (err)
return err;
task_thread_info(tsk)->status &= ~TS_USEDFPU;
stts();
} else {
if (__copy_to_user(buf, &tsk->thread.xstate->fxsave,
sizeof(struct i387_fxsave_struct)))
return -1;
}
return 1;
}

/*
* This restores directly out of user space. Exceptions are handled.
*/
static inline int restore_i387(struct _fpstate __user *buf)
{
struct task_struct *tsk = current;
int err;

if (!used_math()) {
err = init_fpu(tsk);
if (err)
return err;
}

if (!(task_thread_info(current)->status & TS_USEDFPU)) {
clts();
task_thread_info(current)->status |= TS_USEDFPU;
}
return restore_fpu_checking((__force struct i387_fxsave_struct *)buf);
}

#else /* CONFIG_X86_32 */

extern void finit(void);
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3 changes: 2 additions & 1 deletion trunk/include/linux/kthread.h
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,8 @@

struct task_struct *kthread_create(int (*threadfn)(void *data),
void *data,
const char namefmt[], ...);
const char namefmt[], ...)
__attribute__((format(printf, 3, 4)));

/**
* kthread_run - create and wake a thread.
Expand Down

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