From: tip-bot for Masami Hiramatsu <mhiramat@redhat.com>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com,
dle-develop@lists.sourceforge.net, tglx@linutronix.de,
mhiramat@redhat.com, systemtap@sources.redhat.com,
mingo@elte.hu
Subject: [tip:x86/asm] x86: Remove unused thread_return label from switch_to()
Date: Sun, 08 Nov 2009 11:09:00 -0000 [thread overview]
Message-ID: <tip-c12a229bc5971534537a7d0e49e44f9f1f5d0336@git.kernel.org> (raw)
In-Reply-To: <20091105160359.5181.26225.stgit@harusame>
Commit-ID: c12a229bc5971534537a7d0e49e44f9f1f5d0336
Gitweb: http://git.kernel.org/tip/c12a229bc5971534537a7d0e49e44f9f1f5d0336
Author: Masami Hiramatsu <mhiramat@redhat.com>
AuthorDate: Thu, 5 Nov 2009 11:03:59 -0500
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Sun, 8 Nov 2009 11:57:13 +0100
x86: Remove unused thread_return label from switch_to()
Remove unused thread_return label from switch_to() macro on
x86-64. Since this symbol cuts into schedule(), backtrace at the
latter half of schedule() was always shown as thread_return().
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <20091105160359.5181.26225.stgit@harusame>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/include/asm/system.h | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
index f08f973..1a953e2 100644
--- a/arch/x86/include/asm/system.h
+++ b/arch/x86/include/asm/system.h
@@ -128,8 +128,6 @@ do { \
"movq %%rsp,%P[threadrsp](%[prev])\n\t" /* save RSP */ \
"movq %P[threadrsp](%[next]),%%rsp\n\t" /* restore RSP */ \
"call __switch_to\n\t" \
- ".globl thread_return\n" \
- "thread_return:\n\t" \
"movq "__percpu_arg([current_task])",%%rsi\n\t" \
__switch_canary \
"movq %P[thread_info](%%rsi),%%r8\n\t" \
prev parent reply other threads:[~2009-11-08 11:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-05 16:04 [PATCH -tip] [Cleanup] x86/x86-64: " Masami Hiramatsu
2009-11-08 11:09 ` tip-bot for Masami Hiramatsu [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=tip-c12a229bc5971534537a7d0e49e44f9f1f5d0336@git.kernel.org \
--to=mhiramat@redhat.com \
--cc=dle-develop@lists.sourceforge.net \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tip-commits@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=mingo@redhat.com \
--cc=systemtap@sources.redhat.com \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).