Consolidate PTRACE_DETACH

Identical handlers of PTRACE_DETACH go into ptrace_request().
Not touching compat code.
Not touching archs that don't call ptrace_request.

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 3eca7a55f2ee..0870523c2ae4 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -386,6 +386,9 @@ int ptrace_request(struct task_struct *child, long request,
         case PTRACE_SETSIGINFO:
                 ret = ptrace_setsiginfo(child, (siginfo_t __user *) data);
                 break;
+        case PTRACE_DETACH:      /* detach a process that was attached. */
+                ret = ptrace_detach(child, data);
+                break;
         default:
                 break;
         }