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ftrace: don't try to __ftrace_replace_code on !FTRACE_FL_CONVERTED rec
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Do __ftrace_replace_code for !FTRACE_FL_CONVERTED rec will always
fail, we should ignore this rec.

Signed-off-by: Zhao Lei <[email protected]>
Cc: "Steven Rostedt ;" <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
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zhaoleidd authored and Ingo Molnar committed Mar 13, 2009
1 parent b00f0b6 commit fa9d13c
Showing 1 changed file with 5 additions and 4 deletions.
9 changes: 5 additions & 4 deletions kernel/trace/ftrace.c
Original file line number Diff line number Diff line change
Expand Up @@ -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 */
Expand All @@ -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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