From: Ran Xiaokai The page_owner_stack_fops->open() callback invokes seq_open_private(), therefore its corresponding ->release() callback must call seq_release_private(). Otherwise it will cause a memory leak of struct stack_print_ctx. Fixes: 765973a098037 ("mm,page_owner: display all stacks and their count") Signed-off-by: Ran Xiaokai --- mm/page_owner.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page_owner.c b/mm/page_owner.c index 27d19f01009c..b6a394a130ec 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -952,7 +952,7 @@ static const struct file_operations page_owner_stack_fops = { .open = page_owner_stack_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_private, }; static int page_owner_threshold_get(void *data, u64 *val) -- 2.25.1