Messages in this thread Patch in this message | | | From | Masami Hiramatsu <> | Subject | [PATCH -tip 1/5] [CLEANUP] kprobes: Remove redundant text_mutex lock in optimize | Date | Mon, 10 May 2010 13:53:20 -0400 |
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Remove text_mutex locking in optimize_all_kprobes, because that function doesn't modify text but just order optimization to worker.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Jason Baron <jbaron@redhat.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> ---
kernel/kprobes.c | 2 -- 1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 282035f..1d34eef 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -606,14 +606,12 @@ static void __kprobes optimize_all_kprobes(void) return; kprobes_allow_optimization = true; - mutex_lock(&text_mutex); for (i = 0; i < KPROBE_TABLE_SIZE; i++) { head = &kprobe_table[i]; hlist_for_each_entry_rcu(p, node, head, hlist) if (!kprobe_disabled(p)) optimize_kprobe(p); } - mutex_unlock(&text_mutex); printk(KERN_INFO "Kprobes globally optimized\n"); }
-- Masami Hiramatsu e-mail: mhiramat@redhat.com
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