|
From: tip-bot f. M. H. <mhi...@re...> - 2009-11-08 11:09:04
|
Commit-ID: c12a229bc5971534537a7d0e49e44f9f1f5d0336 Gitweb: http://git.kernel.org/tip/c12a229bc5971534537a7d0e49e44f9f1f5d0336 Author: Masami Hiramatsu <mhi...@re...> AuthorDate: Thu, 5 Nov 2009 11:03:59 -0500 Committer: Ingo Molnar <mi...@el...> 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 <mhi...@re...> Cc: systemtap <sys...@so...> Cc: DLE <dle...@li...> LKML-Reference: <20091105160359.5181.26225.stgit@harusame> Signed-off-by: Ingo Molnar <mi...@el...> --- 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" \ |