From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Mathieu Desnoyers <compudj@krystal.dyndns.org>,
Andi Kleen <andi@firstfloor.org>, Jason Baron <jbaron@redhat.com>,
David Miller <davem@davemloft.net>
Subject: [PATCH 11/11] jump label/x86/sparc64: Remove !CC_OPTIMIZE_FOR_SIZE config conditions
Date: Wed, 22 Sep 2010 23:49:21 -0400 [thread overview]
Message-ID: <20100923035610.079283484@goodmis.org> (raw)
In-Reply-To: 20100923034910.867858597@goodmis.org
[-- Attachment #1: 0011-jump-label-x86-sparc64-Remove-CC_OPTIMIZE_FOR_SIZE-c.patch --]
[-- Type: text/plain, Size: 1372 bytes --]
From: Steven Rostedt <srostedt@redhat.com>
The !CC_OPTIMIZE_FOR_SIZE was added to enable the jump label functionality
because Jason noticed that the gcc option would not optimize the labels
and may even hurt performance.
But this is a gcc problem not a kernel one. Removing this condition should
add motivation to the gcc developers to actually fix it.
Cc: Jason Baron <jbaron@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
arch/sparc/Kconfig | 2 +-
arch/x86/Kconfig | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index a81b04e..9212cd4 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -30,7 +30,7 @@ config SPARC
select PERF_USE_VMALLOC
select HAVE_DMA_ATTRS
select HAVE_DMA_API_DEBUG
- select HAVE_ARCH_JUMP_LABEL if !CC_OPTIMIZE_FOR_SIZE
+ select HAVE_ARCH_JUMP_LABEL
config SPARC32
def_bool !64BIT
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index afcd663..b431a08 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -59,7 +59,7 @@ config X86
select ANON_INODES
select HAVE_ARCH_KMEMCHECK
select HAVE_USER_RETURN_NOTIFIER
- select HAVE_ARCH_JUMP_LABEL if !CC_OPTIMIZE_FOR_SIZE
+ select HAVE_ARCH_JUMP_LABEL
config INSTRUCTION_DECODER
def_bool (KPROBES || PERF_EVENTS)
--
1.7.1
next prev parent reply other threads:[~2010-09-23 3:56 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-23 3:49 [GIT PULL] jump label: add jump label code Steven Rostedt
2010-09-23 3:49 ` [PATCH 01/11] jump label: Make dynamic no-op selection available outside of ftrace Steven Rostedt
2010-09-23 3:49 ` [PATCH 02/11] jump label: Make text_poke_early() globally visible Steven Rostedt
2010-09-23 3:49 ` [PATCH 03/11] jump label: Base patch for jump label Steven Rostedt
2010-09-23 14:37 ` Mathieu Desnoyers
2010-09-23 15:39 ` Jason Baron
2010-09-23 15:48 ` Mathieu Desnoyers
2010-09-23 18:40 ` Jason Baron
2010-09-23 18:55 ` Mathieu Desnoyers
2010-09-23 19:08 ` Mathieu Desnoyers
2010-09-23 19:11 ` Jason Baron
2010-09-24 0:44 ` Rusty Russell
2010-09-24 13:54 ` Steven Rostedt
2010-09-24 20:54 ` Mathieu Desnoyers
2010-09-24 21:45 ` Jason Baron
2010-09-23 16:52 ` Steven Rostedt
2010-09-23 17:09 ` Mathieu Desnoyers
2010-09-23 3:49 ` [PATCH 04/11] jump label: Initialize workqueue tracepoints *before* they are registered Steven Rostedt
2010-09-23 3:49 ` [PATCH 05/11] jump label: Add jump_label_text_reserved() to reserve jump points Steven Rostedt
2010-09-23 3:49 ` [PATCH 06/11] jump label: Tracepoint support for jump labels Steven Rostedt
2010-09-23 3:49 ` [PATCH 07/11] jump label: Convert dynamic debug to use " Steven Rostedt
2010-09-23 3:49 ` [PATCH 08/11] jump label: x86 support Steven Rostedt
2010-09-23 3:49 ` [PATCH 09/11] jump label: Add sparc64 support Steven Rostedt
2010-09-23 3:49 ` [PATCH 10/11] jump label: Remove duplicate structure for x86 Steven Rostedt
2010-09-23 3:49 ` Steven Rostedt [this message]
2010-09-23 4:06 ` [GIT PULL] jump label: add jump label code Steven Rostedt
2010-09-23 6:32 ` Ingo Molnar
2010-09-23 12:42 ` Steven Rostedt
2010-09-24 9:02 ` [tip:perf/core] jump label: Fix GCC feature check when distcc is used tip-bot for Ingo Molnar
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