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authorZhaolei <zhaolei@cn.fujitsu.com>2009-03-13 17:16:34 +0800
committerIngo Molnar <mingo@elte.hu>2009-03-13 10:25:06 +0100
commitfa9d13cf135efbd454453a53b6299976bea245a9 (patch)
tree240d46a90984f3c84f336535269e97559e891104 /kernel
parentb00f0b6dc1773b4c8f538503247da050b5ea631b (diff)
downloadop-kernel-dev-fa9d13cf135efbd454453a53b6299976bea245a9.zip
op-kernel-dev-fa9d13cf135efbd454453a53b6299976bea245a9.tar.gz
ftrace: don't try to __ftrace_replace_code on !FTRACE_FL_CONVERTED rec
Do __ftrace_replace_code for !FTRACE_FL_CONVERTED rec will always fail, we should ignore this rec. Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Cc: "Steven Rostedt ;" <rostedt@goodmis.org> LKML-Reference: <49BA2472.4060206@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/ftrace.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 26c45aa..08f4a62 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -532,11 +532,12 @@ static void ftrace_replace_code(int enable)
do_for_each_ftrace_rec(pg, rec) {
/*
- * Skip over free records and records that have
- * failed.
+ * Skip over free records, records that have
+ * failed and not converted.
*/
if (rec->flags & FTRACE_FL_FREE ||
- rec->flags & FTRACE_FL_FAILED)
+ rec->flags & FTRACE_FL_FAILED ||
+ rec->flags & FTRACE_FL_CONVERTED)
continue;
/* ignore updates to this record's mcount site */
@@ -548,7 +549,7 @@ static void ftrace_replace_code(int enable)
}
failed = __ftrace_replace_code(rec, enable);
- if (failed && (rec->flags & FTRACE_FL_CONVERTED)) {
+ if (failed) {
rec->flags |= FTRACE_FL_FAILED;
if ((system_state == SYSTEM_BOOTING) ||
!core_kernel_text(rec->ip)) {
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