ptrace: remove PT_DTRACE from avr32, mn10300, parisc, s390, sh, xtensa

avr32, mn10300, parisc, s390, sh, xtensa:

They never set PT_DTRACE, but clear it after do_execve().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Chris Zankel <chris@zankel.net>
Acked-by: Roland McGrath <roland@redhat.com>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 files changed, 0 insertions, 41 deletions

diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 1bbe1da54869..93c0342530a0 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -394,8 +394,6 @@ asmlinkage int sys_execve(char __user *ufilename, char __user *__user *uargv,
                 goto out;
 
         error = do_execve(filename, uargv, uenvp, regs);
-        if (error == 0)
-                current->ptrace &= ~PT_DTRACE;
         putname(filename);
 
 out:
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 234cf344cdce..892cce82867e 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -281,9 +281,6 @@ asmlinkage long sys_execve(char __user *name,
         error = PTR_ERR(filename);
         if (!IS_ERR(filename)) {
                 error = do_execve(filename, argv, envp, __frame);
-                if (error == 0)
-                        current->ptrace &= ~PT_DTRACE;
-
                 putname(filename);
         }
 
diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
index 5cbe9f9e5d9e..54075360a8fd 100644
--- a/arch/parisc/hpux/fs.c
+++ b/arch/parisc/hpux/fs.c
@@ -44,11 +44,6 @@ int hpux_execve(struct pt_regs *regs)
         error = do_execve(filename, (char __user * __user *) regs->gr[25],
                 (char __user * __user *) regs->gr[24], regs);
 
-        if (error == 0) {
-                task_lock(current);
-                current->ptrace &= ~PT_DTRACE;
-                task_unlock(current);
-        }
         putname(filename);
 
 out:
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 6f69101f90bb..61c07078c072 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -349,11 +349,6 @@ asmlinkage int sys_execve(struct pt_regs *regs)
                 goto out;
         error = do_execve(filename, (char __user * __user *) regs->gr[25],
                 (char __user * __user *) regs->gr[24], regs);
-        if (error == 0) {
-                task_lock(current);
-                current->ptrace &= ~PT_DTRACE;
-                task_unlock(current);
-        }
         putname(filename);
 out:
 
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 0838155b7a88..1adb40c81669 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -77,11 +77,6 @@ asmlinkage int sys32_execve(struct pt_regs *regs)
                 goto out;
         error = compat_do_execve(filename, compat_ptr(regs->gr[25]),
                                  compat_ptr(regs->gr[24]), regs);
-        if (error == 0) {
-                task_lock(current);
-                current->ptrace &= ~PT_DTRACE;
-                task_unlock(current);
-        }
         putname(filename);
 out:
 
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 002c70d3cb75..9ab188d67a3d 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -461,9 +461,6 @@ asmlinkage long sys32_execve(void)
                 result = rc;
                 goto out_putname;
         }
-        task_lock(current);
-        current->ptrace &= ~PT_DTRACE;
-        task_unlock(current);
         current->thread.fp_regs.fpc=0;
         asm volatile("sfpc %0,0" : : "d" (0));
         result = regs->gprs[2];
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 355f7a30c3f1..5a43f27eec13 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -266,9 +266,6 @@ SYSCALL_DEFINE0(vfork)
 
 asmlinkage void execve_tail(void)
 {
-        task_lock(current);
-        current->ptrace &= ~PT_DTRACE;
-        task_unlock(current);
         current->thread.fp_regs.fpc = 0;
         if (MACHINE_HAS_IEEE)
                 asm volatile("sfpc %0,%0" : : "d" (0));
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 9289ede29c7b..601bbc0ec74e 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -367,11 +367,6 @@ asmlinkage int sys_execve(char __user *ufilename, char __user * __user *uargv,
                 goto out;
 
         error = do_execve(filename, uargv, uenvp, regs);
-        if (error == 0) {
-                task_lock(current);
-                current->ptrace &= ~PT_DTRACE;
-                task_unlock(current);
-        }
         putname(filename);
 out:
         return error;
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index 96be839040f8..3826773496d8 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -529,11 +529,6 @@ asmlinkage int sys_execve(char *ufilename, char **uargv,
                           (char __user * __user *)uargv,
                           (char __user * __user *)uenvp,
                           pregs);
-        if (error == 0) {
-                task_lock(current);
-                current->ptrace &= ~PT_DTRACE;
-                task_unlock(current);
-        }
         putname(filename);
 out:
         return error;
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 031f36685710..e1a04a346e75 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -331,11 +331,6 @@ long xtensa_execve(char __user *name, char __user * __user *argv,
         if (IS_ERR(filename))
                 goto out;
         error = do_execve(filename, argv, envp, regs);
-        if (error == 0) {
-                task_lock(current);
-                current->ptrace &= ~PT_DTRACE;
-                task_unlock(current);
-        }
         putname(filename);
 out:
         return error;