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From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>,
	Andrew Morton <akpm@linux-foundation.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Jason Baron <jbaron@redhat.com>,
	David Miller <davem@davemloft.net>,
	David Daney <ddaney@caviumnetworks.com>
Subject: [PATCH 4/7] jump label: Make arch_jump_label_text_poke_early() optional
Date: Fri, 29 Oct 2010 15:00:54 -0400	[thread overview]
Message-ID: <20101029190135.715856039@goodmis.org> (raw)
In-Reply-To: 20101029190050.674141729@goodmis.org

[-- Attachment #1: 0004-jump-label-Make-arch_jump_label_text_poke_early-opti.patch --]
[-- Type: text/plain, Size: 1018 bytes --]

From: Steven Rostedt <srostedt@redhat.com>

Some archs do not need to do anything special for jump labels on
startup (like MIPS).  This patch adds a weak function stub for
arch_jump_label_text_poke_early();

Cc: Jason Baron <jbaron@redhat.com>
Cc: David Miller <davem@davemloft.net>
Cc: David Daney <ddaney@caviumnetworks.com>
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <1286218615-24011-2-git-send-email-ddaney@caviumnetworks.com>
LKML-Reference: <20101015201037.703989993@goodmis.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/jump_label.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index 12cce78..3b79bd9 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -270,6 +270,13 @@ out:
 	return conflict;
 }
 
+/*
+ * Not all archs need this.
+ */
+void __weak arch_jump_label_text_poke_early(jump_label_t addr)
+{
+}
+
 static __init int init_jump_label(void)
 {
 	int ret;
-- 
1.7.1



  parent reply	other threads:[~2010-10-29 19:01 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-29 19:00 [PATCH 0/7] [GIT PULL] jump label: fixes and work arounds Steven Rostedt
2010-10-29 19:00 ` [PATCH 1/7] jump label: Fix module __init section race Steven Rostedt
2010-10-29 19:00 ` [PATCH 2/7] jump label: Fix deadlock b/w jump_label_mutex vs. text_mutex Steven Rostedt
2010-10-29 19:00 ` [PATCH 3/7] jump label: Fix error with preempt disable holding mutex Steven Rostedt
2010-10-29 19:00 ` Steven Rostedt [this message]
2010-10-29 19:00 ` [PATCH 5/7] jump_label: Fix unaligned traps on sparc Steven Rostedt
2010-10-29 19:00 ` [PATCH 6/7] x86, ftrace: Use safe noops, drop trap test Steven Rostedt
2010-10-29 20:03   ` Mathieu Desnoyers
2010-10-29 19:00 ` [PATCH 7/7] jump label: Add work around to i386 gcc asm goto bug Steven Rostedt
2010-10-29 20:02   ` Mathieu Desnoyers
2010-10-30 19:24 ` [PATCH 0/7] [GIT PULL] jump label: fixes and work arounds Ingo Molnar

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