X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=kernel%2Fptrace.c;h=c25db863081dac8d999b849e4b34d05dac96840e;hb=7607341a265a56cdf8b4bf10d355098e80ea481b;hp=b0ace60ce596c9b41ed3e397de35b05fd6b535e7;hpb=228ebcbe634a30aec35132ea4375721bcc41bec0;p=linux-2.6

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index b0ace60ce5..c25db86308 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -120,7 +120,7 @@ int ptrace_check_attach(struct task_struct *child, int kill)
 	return ret;
 }
 
-static int may_attach(struct task_struct *task)
+int __ptrace_may_attach(struct task_struct *task)
 {
 	/* May we inspect the given task?
 	 * This check is used both for attaching with ptrace
@@ -154,7 +154,7 @@ int ptrace_may_attach(struct task_struct *task)
 {
 	int err;
 	task_lock(task);
-	err = may_attach(task);
+	err = __ptrace_may_attach(task);
 	task_unlock(task);
 	return !err;
 }
@@ -169,7 +169,7 @@ int ptrace_attach(struct task_struct *task)
 	retval = -EPERM;
 	if (task->pid <= 1)
 		goto out;
-	if (task->tgid == current->tgid)
+	if (same_thread_group(task, current))
 		goto out;
 
 repeat:
@@ -196,7 +196,7 @@ repeat:
 	/* the same process cannot be attached many times */
 	if (task->ptrace & PT_PTRACED)
 		goto bad;
-	retval = may_attach(task);
+	retval = __ptrace_may_attach(task);
 	if (retval)
 		goto bad;