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Merge branch 'x86/asm' into x86/urgent

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Merge reason: it's stable so lets push it upstream.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
2009-12-15 20:33:22 +01:00
parent 186a25026c df59e7bf43
commit ab1eebe77d
10 changed files with 148 additions and 233 deletions
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35
arch/x86/kernel/process_64.c
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@@ -57,8 +57,6 @@ asmlinkage extern void ret_from_fork(void);
DEFINE_PER_CPU(unsigned long, old_rsp);
static DEFINE_PER_CPU(unsigned char, is_idle);
unsigned long kernel_thread_flags = CLONE_VM | CLONE_UNTRACED;
static ATOMIC_NOTIFIER_HEAD(idle_notifier);
void idle_notifier_register(struct notifier_block *n)
@@ -273,8 +271,9 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
*childregs = *regs;
childregs->ax = 0;
childregs->sp = sp;
if (sp == ~0UL)
if (user_mode(regs))
childregs->sp = sp;
else
childregs->sp = (unsigned long)childregs;
p->thread.sp = (unsigned long) childregs;
@@ -508,25 +507,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
return prev_p;
}
/*
* sys_execve() executes a new program.
*/
asmlinkage
long sys_execve(char __user *name, char __user * __user *argv,
char __user * __user *envp, struct pt_regs *regs)
{
long error;
char *filename;
filename = getname(name);
error = PTR_ERR(filename);
if (IS_ERR(filename))
return error;
error = do_execve(filename, argv, envp, regs);
putname(filename);
return error;
}
void set_personality_64bit(void)
{
/* inherit personality from parent */
@@ -541,15 +521,6 @@ void set_personality_64bit(void)
current->personality &= ~READ_IMPLIES_EXEC;
}
asmlinkage long
sys_clone(unsigned long clone_flags, unsigned long newsp,
void __user *parent_tid, void __user *child_tid, struct pt_regs *regs)
{
if (!newsp)
newsp = regs->sp;
return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
}
unsigned long get_wchan(struct task_struct *p)
{
unsigned long stack;