From: Oleg Nesterov <oleg@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Roland McGrath <roland@redhat.com>
Cc: Chris Zankel <chris@zankel.net>,
David Howells <dhowells@redhat.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Greg Ungerer <gerg@uclinux.org>,
Haavard Skinnemoen <hskinnemoen@atmel.com>,
Helge Deller <deller@gmx.de>,
Hirokazu Takata <takata@linux-m32r.org>,
Jeff Dike <jdike@addtoit.com>, Kyle McMartin <kyle@mcmartin.ca>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Mike Frysinger <vapier.adi@gmail.com>,
Paul Mundt <lethal@linux-sh.org>,
Roman Zippel <zippel@linux-m68k.org>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
linux-kernel@vger.kernel.org
Subject: [PATCH 4/4] ptrace: remove PT_DTRACE from arch/m32r
Date: Thu, 23 Apr 2009 21:32:15 +0200 [thread overview]
Message-ID: <20090423193215.GA14895@redhat.com> (raw)
m32r: PTRACE_SINGLESTEP sets PT_DTRACE, it is never used except cleared
after do_execve().
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
arch/m32r/kernel/process.c | 5 -----
arch/m32r/kernel/ptrace.c | 4 ----
2 files changed, 9 deletions(-)
--- PTRACE/arch/m32r/kernel/process.c~DT_4_m32r 2009-04-06 00:03:35.000000000 +0200
+++ PTRACE/arch/m32r/kernel/process.c 2009-04-22 22:01:44.000000000 +0200
@@ -302,11 +302,6 @@ asmlinkage int sys_execve(char __user *u
goto out;
error = do_execve(filename, uargv, uenvp, ®s);
- if (error == 0) {
- task_lock(current);
- current->ptrace &= ~PT_DTRACE;
- task_unlock(current);
- }
putname(filename);
out:
return error;
--- PTRACE/arch/m32r/kernel/ptrace.c~DT_4_m32r 2009-04-06 00:03:35.000000000 +0200
+++ PTRACE/arch/m32r/kernel/ptrace.c 2009-04-22 22:00:13.000000000 +0200
@@ -676,10 +676,6 @@ arch_ptrace(struct task_struct *child, l
if (!valid_signal(data))
break;
clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- if ((child->ptrace & PT_DTRACE) == 0) {
- /* Spurious delayed TF traps may occur */
- child->ptrace |= PT_DTRACE;
- }
/* Compute next pc. */
pc = get_stack_long(child, PT_BPC);
next reply other threads:[~2009-04-23 19:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-23 19:32 Oleg Nesterov [this message]
2009-04-24 3:29 ` [PATCH 4/4] ptrace: remove PT_DTRACE from arch/m32r Hirokazu Takata
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