sparc: Fix ptrace() detach.

Forever we had a PTRACE_SUNOS_DETACH which was unconditionally
recognized, regardless of the personality of the process.

Unfortunately, this value is what ended up in the GLIBC sys/ptrace.h
header file on sparc as PTRACE_DETACH and PT_DETACH.

So continue to recognize this old value.  Luckily, it doesn't conflict
with anything we actually care about.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

arch/sparc/kernel/ptrace.c

@@ -441,6 +441,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		break;
 
 	default:
+		if (request == PTRACE_SPARC_DETACH)
+			request = PTRACE_DETACH;
 		ret = ptrace_request(child, request, addr, data);
 		break;
 	}

arch/sparc64/kernel/ptrace.c

@@ -944,6 +944,8 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 		break;
 
 	default:
+		if (request == PTRACE_SPARC_DETACH)
+			request = PTRACE_DETACH;
 		ret = compat_ptrace_request(child, request, addr, data);
 		break;
 	}
@@ -1036,6 +1038,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		break;
 
 	default:
+		if (request == PTRACE_SPARC_DETACH)
+			request = PTRACE_DETACH;
 		ret = ptrace_request(child, request, addr, data);
 		break;
 	}

include/asm-sparc/ptrace.h

@@ -149,6 +149,7 @@ extern void show_regs(struct pt_regs *);
 #define SF_XXARG  0x5c
 
 /* Stuff for the ptrace system call */
+#define PTRACE_SPARC_DETACH       11
 #define PTRACE_GETREGS            12
 #define PTRACE_SETREGS            13
 #define PTRACE_GETFPREGS          14

include/asm-sparc64/ptrace.h

@@ -298,6 +298,7 @@ extern void __show_regs(struct pt_regs *);
 #define SF_XXARG  0x5c
 
 /* Stuff for the ptrace system call */
+#define PTRACE_SPARC_DETACH       11
 #define PTRACE_GETREGS            12
 #define PTRACE_SETREGS            13
 #define PTRACE_GETFPREGS          14