From: Cyrill Gorcunov <gorcunov@gmail.com>
To: mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com,
linux-kernel@vger.kernel.org, heukelum@fastmail.fm
Subject: Re: [PATCH 2/5] x86: ret_from_fork - get rid of jump back
Date: Wed, 26 Nov 2008 22:33:36 +0300 [thread overview]
Message-ID: <20081126193336.GA2624@localhost> (raw)
In-Reply-To: <cc7949234e3ac0ddb402764be5ed620035f964a6.1227725632.git.gorcunov@gmail.com>
[gorcunov@gmail.com - Wed, Nov 26, 2008 at 10:17:01PM +0300]
| From: Cyrill Gorcunov <gorcunov@gmail.com>
|
| Impact: cleanup, microoptimization
|
| Use straightforward jumping if possible, cpu like it.
Wrong word, not _straight_ forward but forward branch target
in this case.
|
| Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
| ---
| arch/x86/kernel/entry_64.S | 10 ++++------
| 1 files changed, 4 insertions(+), 6 deletions(-)
|
- Cyrill -
next prev parent reply other threads:[~2008-11-26 19:33 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-26 19:16 x86 -tip: entry_64.S cleanup series gorcunov
2008-11-26 19:17 ` [PATCH 1/5] x86: entry_64.S - use ENTRY to define child_rip gorcunov
2008-11-26 19:17 ` [PATCH 2/5] x86: ret_from_fork - get rid of jump back gorcunov
2008-11-26 19:33 ` Cyrill Gorcunov [this message]
2008-11-26 20:04 ` Andi Kleen
2008-11-26 20:10 ` Cyrill Gorcunov
2008-11-26 20:15 ` Cyrill Gorcunov
2008-11-27 13:41 ` Ingo Molnar
2008-11-27 14:16 ` Andi Kleen
2008-11-28 13:47 ` Ingo Molnar
2008-11-28 18:55 ` Andi Kleen
2008-11-27 16:20 ` Cyrill Gorcunov
2008-11-27 19:12 ` Cyrill Gorcunov
2008-11-26 19:17 ` [PATCH 3/5] x86: entry_64.S - use X86_EFLAGS_IF instead of hardcoded number gorcunov
2008-11-27 10:37 ` Alexander van Heukelum
2008-11-27 12:00 ` Ingo Molnar
2008-11-26 19:17 ` [PATCH 4/5] x86: ret_from_fork - add CFI proc annotation gorcunov
2008-11-27 10:15 ` Alexander van Heukelum
2008-11-27 11:27 ` Cyrill Gorcunov
2008-11-26 19:17 ` [PATCH 5/5] x86: entry_64.S - trivial: space, comments fixup gorcunov
2008-11-27 10:39 ` Alexander van Heukelum
2008-11-27 12:02 ` Ingo Molnar
2008-11-27 12:25 ` Cyrill Gorcunov
2008-11-27 18:10 ` Cyrill Gorcunov
2008-11-28 13:54 ` Ingo Molnar
2008-11-27 10:37 ` [PATCH 1/5] x86: entry_64.S - use ENTRY to define child_rip Alexander van Heukelum
2008-11-27 12:04 ` Ingo Molnar
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