diff options
| author | Wang Wensheng <wangwensheng4@huawei.com> | 2022-11-09 09:44:33 +0000 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-11-17 15:42:48 -0500 |
| commit | bcea02b096333dc74af987cb9685a4dbdd820840 (patch) | |
| tree | 462056a7f51104f5392d31360ca7c14ce6ef18fc | |
| parent | 08948caebe93482db1adfd2154eba124f66d161d (diff) | |
ftrace: Optimize the allocation for mcount entries
If we can't allocate this size, try something smaller with half of the
size. Its order should be decreased by one instead of divided by two.
Link: https://lkml.kernel.org/r/20221109094434.84046-3-wangwensheng4@huawei.com
Cc: <mhiramat@kernel.org>
Cc: <mark.rutland@arm.com>
Cc: stable@vger.kernel.org
Fixes: a79008755497d ("ftrace: Allocate the mcount record pages as groups")
Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
| -rw-r--r-- | kernel/trace/ftrace.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 8b13ce2eae70..56a168121bfc 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -3190,7 +3190,7 @@ static int ftrace_allocate_records(struct ftrace_page *pg, int count) /* if we can't allocate this size, try something smaller */ if (!order) return -ENOMEM; - order >>= 1; + order--; goto again; } |