[PATCH -next-20080709] fixup stop_machine use cpu mask vs ftrace
Milton Miller
miltonm at bga.com
Fri Jul 11 07:07:57 EST 2008
Hi Rusty, Ingo.
Rusty's patch [PATCH 3/3] stop_machine: use cpu mask rather than magic numbers
didn't find kernel/trace/ftrace.c in -next, causing an immediate almost NULL
pointer dereference in ftrace_dynamic_init.
Signed-off-by: Milton Miller <miltonm at bga.com>
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 0f271c4..c29acb5 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -587,7 +587,7 @@ static int __ftrace_modify_code(void *data)
static void ftrace_run_update_code(int command)
{
- stop_machine_run(__ftrace_modify_code, &command, NR_CPUS);
+ stop_machine_run(__ftrace_modify_code, &command, NULL);
}
void ftrace_disable_daemon(void)
@@ -787,7 +787,7 @@ static int ftrace_update_code(void)
!ftrace_enabled || !ftraced_trigger)
return 0;
- stop_machine_run(__ftrace_update_code, NULL, NR_CPUS);
+ stop_machine_run(__ftrace_update_code, NULL, NULL);
return 1;
}
@@ -1564,7 +1564,7 @@ static int __init ftrace_dynamic_init(void)
addr = (unsigned long)ftrace_record_ip;
- stop_machine_run(ftrace_dyn_arch_init, &addr, NR_CPUS);
+ stop_machine_run(ftrace_dyn_arch_init, &addr, NULL);
/* ftrace_dyn_arch_init places the return code in addr */
if (addr) {
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