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authorRoland McGrath <roland@redhat.com>2007-12-20 03:58:55 -0800
committerPaul Mackerras <paulus@samba.org>2008-02-07 20:40:21 +1100
commit81e695c026eeda9a97e412fa4f458e5cab2f6c85 (patch)
treea81404f170a260a2718064938a5036972da27e93 /arch
parent1d48d71c06172c0853e04c334456e64cc006e208 (diff)
downloadlinux-81e695c026eeda9a97e412fa4f458e5cab2f6c85.tar.bz2
[POWERPC] Use generic compat_sys_ptrace
This replaces powerpc's compat_sys_ptrace with a compat_arch_ptrace and enables the new generic definition of compat_sys_ptrace instead. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/ptrace32.c33
1 files changed, 5 insertions, 28 deletions
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index 6612304e11e3..0f6eea086a23 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -85,33 +85,13 @@ static long compat_ptrace_old(struct task_struct *child, long request,
return ret;
}
-long compat_sys_ptrace(int request, int pid, unsigned long addr,
- unsigned long data)
+long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
+ compat_ulong_t caddr, compat_ulong_t cdata)
{
- struct task_struct *child;
+ unsigned long addr = caddr;
+ unsigned long data = cdata;
int ret;
- lock_kernel();
- if (request == PTRACE_TRACEME) {
- ret = ptrace_traceme();
- goto out;
- }
-
- child = ptrace_get_task_struct(pid);
- if (IS_ERR(child)) {
- ret = PTR_ERR(child);
- goto out;
- }
-
- if (request == PTRACE_ATTACH) {
- ret = ptrace_attach(child);
- goto out_tsk;
- }
-
- ret = ptrace_check_attach(child, request == PTRACE_KILL);
- if (ret < 0)
- goto out_tsk;
-
switch (request) {
/*
* Read 4 bytes of the other process' storage
@@ -375,9 +355,6 @@ long compat_sys_ptrace(int request, int pid, unsigned long addr,
ret = compat_ptrace_request(child, request, addr, data);
break;
}
-out_tsk:
- put_task_struct(child);
-out:
- unlock_kernel();
+
return ret;
}