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Mark ptrace_{traceme,attach,detach} static

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They are only used inside kernel/ptrace.c, and have been for a long
time.  We don't want to go back to the bad-old-days when architectures
did things on their own, so make them static and private.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2011-03-04 09:23:30 -08:00
parent b65a0e0c84
commit e3e89cc535
2 changed files with 3 additions and 6 deletions
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3
include/linux/ptrace.h
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@ -102,11 +102,8 @@
extern long arch_ptrace(struct task_struct *child, long request, extern long arch_ptrace(struct task_struct *child, long request,
unsigned long addr, unsigned long data); unsigned long addr, unsigned long data);
extern int ptrace_traceme(void);
extern int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst, int len); extern int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst, int len);
extern int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long dst, int len); extern int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long dst, int len);
extern int ptrace_attach(struct task_struct *tsk);
extern int ptrace_detach(struct task_struct *, unsigned int);
extern void ptrace_disable(struct task_struct *); extern void ptrace_disable(struct task_struct *);
extern int ptrace_check_attach(struct task_struct *task, int kill); extern int ptrace_check_attach(struct task_struct *task, int kill);
extern int ptrace_request(struct task_struct *child, long request, extern int ptrace_request(struct task_struct *child, long request,

6
kernel/ptrace.c
View File

@ -163,7 +163,7 @@ bool ptrace_may_access(struct task_struct *task, unsigned int mode)
return !err; return !err;
} }
int ptrace_attach(struct task_struct *task) static int ptrace_attach(struct task_struct *task)
{ {
int retval; int retval;
@ -219,7 +219,7 @@ int ptrace_attach(struct task_struct *task)
* Performs checks and sets PT_PTRACED. * Performs checks and sets PT_PTRACED.
* Should be used by all ptrace implementations for PTRACE_TRACEME. * Should be used by all ptrace implementations for PTRACE_TRACEME.
*/ */
int ptrace_traceme(void) static int ptrace_traceme(void)
{ {
int ret = -EPERM; int ret = -EPERM;
@ -293,7 +293,7 @@ static bool __ptrace_detach(struct task_struct *tracer, struct task_struct *p)
return false; return false;
} }
int ptrace_detach(struct task_struct *child, unsigned int data) static int ptrace_detach(struct task_struct *child, unsigned int data)
{ {
bool dead = false; bool dead = false;