From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755675Ab2DCWlB (ORCPT ); Tue, 3 Apr 2012 18:41:01 -0400 Received: from mail-wi0-f172.google.com ([209.85.212.172]:57283 "EHLO mail-wi0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753684Ab2DCWlA (ORCPT ); Tue, 3 Apr 2012 18:41:00 -0400 Date: Wed, 4 Apr 2012 00:40:55 +0200 From: Ingo Molnar To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, Peter Zijlstra , Arnaldo Carvalho de Melo , Thomas Gleixner , Andrew Morton Subject: [GIT PULL] perf fixes Message-ID: <20120403224055.GA5338@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Linus, Please pull the latest perf-urgent-for-linus git tree from: git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-urgent-for-linus HEAD: 7b8e6da46b921d30ac1553cac56d8fb74f0b431d perf/x86/p4: Add format attributes Thanks, Ingo ------------------> Oleg Nesterov (1): tracing, sched, vfs: Fix 'old_pid' usage in trace_sched_process_exec() Peter Zijlstra (1): perf/x86/p4: Add format attributes arch/x86/kernel/cpu/perf_event_p4.c | 13 +++++++++++++ fs/exec.c | 7 ++++--- include/trace/events/sched.h | 2 +- 3 files changed, 18 insertions(+), 4 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c index ef484d9..a2dfacf 100644 --- a/arch/x86/kernel/cpu/perf_event_p4.c +++ b/arch/x86/kernel/cpu/perf_event_p4.c @@ -1271,6 +1271,17 @@ done: return num ? -EINVAL : 0; } +PMU_FORMAT_ATTR(cccr, "config:0-31" ); +PMU_FORMAT_ATTR(escr, "config:32-62"); +PMU_FORMAT_ATTR(ht, "config:63" ); + +static struct attribute *intel_p4_formats_attr[] = { + &format_attr_cccr.attr, + &format_attr_escr.attr, + &format_attr_ht.attr, + NULL, +}; + static __initconst const struct x86_pmu p4_pmu = { .name = "Netburst P4/Xeon", .handle_irq = p4_pmu_handle_irq, @@ -1305,6 +1316,8 @@ static __initconst const struct x86_pmu p4_pmu = { * the former idea is taken from OProfile code */ .perfctr_second_write = 1, + + .format_attrs = intel_p4_formats_attr, }; __init int p4_pmu_init(void) diff --git a/fs/exec.c b/fs/exec.c index 23559c2..644f6c4 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1370,7 +1370,7 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) unsigned int depth = bprm->recursion_depth; int try,retval; struct linux_binfmt *fmt; - pid_t old_pid; + pid_t old_pid, old_vpid; retval = security_bprm_check(bprm); if (retval) @@ -1381,8 +1381,9 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) return retval; /* Need to fetch pid before load_binary changes it */ + old_pid = current->pid; rcu_read_lock(); - old_pid = task_pid_nr_ns(current, task_active_pid_ns(current->parent)); + old_vpid = task_pid_nr_ns(current, task_active_pid_ns(current->parent)); rcu_read_unlock(); retval = -ENOENT; @@ -1405,7 +1406,7 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) if (retval >= 0) { if (depth == 0) { trace_sched_process_exec(current, old_pid, bprm); - ptrace_event(PTRACE_EVENT_EXEC, old_pid); + ptrace_event(PTRACE_EVENT_EXEC, old_vpid); } put_binfmt(fmt); allow_write_access(bprm->file); diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index fbc7b1a..ea7a203 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -295,7 +295,7 @@ TRACE_EVENT(sched_process_exec, TP_fast_assign( __assign_str(filename, bprm->filename); __entry->pid = p->pid; - __entry->old_pid = p->pid; + __entry->old_pid = old_pid; ), TP_printk("filename=%s pid=%d old_pid=%d", __get_str(filename),