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authorLi Zefan <lizf@cn.fujitsu.com>2009-12-30 14:22:22 +0800
committerIngo Molnar <mingo@elte.hu>2009-12-30 07:50:47 +0100
commit88f7a890d74137ab0d126a5d65679cd620f1a289 (patch)
tree93f6a908ae6eca32dd7b06be5a0cfb856c7877ac /kernel/trace
parent40892367bc893f3abf6f5ca8ac2ed1c98ba26a77 (diff)
downloadlinux-2.6.38-lt-ux500-88f7a890d74137ab0d126a5d65679cd620f1a289.tar.gz
ksym_tracer: Fix to make the tracer work
ksym tracer doesn't work: # echo tasklist_lock:rw- > ksym_trace_filter -bash: echo: write error: No such device It's because we pass to perf_event_create_kernel_counter() a cpu number which is not present. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <4B3AF19E.1010201@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/trace_ksym.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/trace/trace_ksym.c b/kernel/trace/trace_ksym.c
index faf37fa4408..340b6ff193e 100644
--- a/kernel/trace/trace_ksym.c
+++ b/kernel/trace/trace_ksym.c
@@ -197,7 +197,6 @@ int process_new_ksym_entry(char *ksymname, int op, unsigned long addr)
entry->attr.bp_addr = addr;
entry->attr.bp_len = HW_BREAKPOINT_LEN_4;
- ret = -EAGAIN;
entry->ksym_hbp = register_wide_hw_breakpoint(&entry->attr,
ksym_hbp_handler);