From: Wang Wensheng wangwensheng4@huawei.com

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 --- kernel/trace/ftrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

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; }