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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2010-10-14 12:10:36 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-10-14 08:55:28 +0200 |
| commit | 3caa37519ccbb200c7fbbf6ff4fb306a30f29425 (patch) | |
| tree | fc2c999dd90d8d47f2a928960f02f6280b14f819 /arch | |
| parent | 087a4eb55971dfcc8df18312faf9393d0a479f3a (diff) | |
| download | op-kernel-dev-3caa37519ccbb200c7fbbf6ff4fb306a30f29425.zip op-kernel-dev-3caa37519ccbb200c7fbbf6ff4fb306a30f29425.tar.gz | |
x86: Use __stop_machine() in text_poke_smp()
Use __stop_machine() in text_poke_smp() because the caller
must get online_cpus before calling text_poke_smp(), but
stop_machine() do it again. We don't need it.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: 2nddept-manager@sdl.hitachi.co.jp
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
LKML-Reference: <20101014031036.4100.83989.stgit@ltc236.sdl.hitachi.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/alternative.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index cb0e6d3..a36bb90 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -637,7 +637,8 @@ void *__kprobes text_poke_smp(void *addr, const void *opcode, size_t len) tpp.len = len; atomic_set(&stop_machine_first, 1); wrote_text = 0; - stop_machine(stop_machine_text_poke, (void *)&tpp, NULL); + /* Use __stop_machine() because the caller already got online_cpus. */ + __stop_machine(stop_machine_text_poke, (void *)&tpp, NULL); return addr; } |
