linux-kernel - [PATCH 0/2] x86: separating entry text section + kprobes fix

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Message-Id: <1298298313-5980-1-git-send-email-jolsa@redhat.com>
Date:	Mon, 21 Feb 2011 15:25:11 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	mingo@...e.hu
Cc:	masami.hiramatsu.pt@...achi.com, acme@...hat.com,
	fweisbec@...il.com, hpa@...or.com, ananth@...ibm.com,
	davem@...emloft.net, linux-kernel@...r.kernel.org,
	tglx@...utronix.de, a.p.zijlstra@...llo.nl, eric.dumazet@...il.com,
	2nddept-manager@....hitachi.co.jp
Subject: [PATCH 0/2] x86: separating entry text section + kprobes fix

hi,

while fixing the optimized kprobes issue, we found out that separating
the entry text section might have performance benefits with regards to
the instruction cache usage.

attached patches:
1/2 - x86: separating entry text section
2/2 - kprobes: disabling optimized kprobes for entry text section

wbr,
jirka
---
 arch/x86/ia32/ia32entry.S         |    2 ++
 arch/x86/kernel/entry_32.S        |    6 ++++--
 arch/x86/kernel/entry_64.S        |    6 ++++--
 arch/x86/kernel/kprobes.c         |    8 ++++++++
 arch/x86/kernel/vmlinux.lds.S     |    1 +
 include/asm-generic/sections.h    |    1 +
 include/asm-generic/vmlinux.lds.h |    6 ++++++
 7 files changed, 26 insertions(+), 4 deletions(-)
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