linux-kernel - [PATCH 0/2] [GIT PULL] tracing: Fixes old and new

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Date:	Fri, 12 Dec 2014 23:21:44 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	linux-kernel@...r.kernel.org
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 0/2] [GIT PULL] tracing: Fixes old and new

Linus,

Here's two fixes:

1) Discovered by Fengguang Wu's tests. I changed the parameters to
   the function graph x86 prepare_ftrace_return() call but forgot
   to update the call from entry_32 (i386 version). This patch corrects
   that.

2) I was tracing some code and found that the sched_switch tracepoint
   was showing tasks in the INTERRUPTIBLE state as RUNNING. This was
   due to the updates to convert preempt_count into a per_cpu variable.
   The tracepoint logic was made to use the task's saved_preempt_count
   which could hold a stale "PREEMPT_ACTIVE", instead of using the
   current preempt_count() call.

Please pull the latest trace-fixes-v3.18 tree, which can be found at:

  git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
trace-fixes-v3.18

Tag SHA1: acbe5cd526bb9de84fe73d68f8d7bfcbde8ab9f4
Head SHA1: aee4e5f3d3abb7a2239dd02f6d8fb173413fd02f

Steven Rostedt (Red Hat) (2):
      ftrace/x86: Update i386 call to prepare_ftrace_return()
      tracing/sched: Check preempt_count() for current when reading task->state

----
 arch/x86/kernel/entry_32.S   | 6 +++---
 include/trace/events/sched.h | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)
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