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| author | Masami Hiramatsu <mhiramat@redhat.com> | 2009-11-05 11:03:59 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-08 11:57:13 +0100 |
| commit | c12a229bc5971534537a7d0e49e44f9f1f5d0336 (patch) | |
| tree | b1b1edeefa6ead19532942a91e162e33913ecff0 | |
| parent | 97829de5a3b88899c5f3ac8802d11868bf4180ba (diff) | |
| download | blackbird-op-linux-c12a229bc5971534537a7d0e49e44f9f1f5d0336.tar.gz blackbird-op-linux-c12a229bc5971534537a7d0e49e44f9f1f5d0336.zip | |
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>
| -rw-r--r-- | 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 f08f97374892..1a953e26401c 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" \ |
