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authorIngo Molnar <mingo@elte.hu>2009-12-15 20:33:22 +0100
committerIngo Molnar <mingo@elte.hu>2009-12-15 20:33:28 +0100
commitab1eebe77dd08b26585860d534e07810d1cd274d (patch)
tree92b1ff0952cbdeef34922c43ff7eaac2162e77c4 /arch/x86/kernel/process_64.c
parent186a25026c44d1bfa97671110ff14dcd0c99678e (diff)
parentdf59e7bf439918f523ac29e996ec1eebbed60440 (diff)
Merge branch 'x86/asm' into x86/urgent
Merge reason: it's stable so lets push it upstream. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/process_64.c')
-rw-r--r--arch/x86/kernel/process_64.c35
1 files changed, 3 insertions, 32 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index e5ab0cd0ef3..52fbd0c6019 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -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;