Messages in this thread | | | Date | Mon, 31 Jan 2022 12:38:45 -0800 | From | Roman Gushchin <> | Subject | Re: [PATCH v3 2/4] mm/page_owner: Use scnprintf() to avoid excessive buffer overrun check |
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On Mon, Jan 31, 2022 at 02:23:06PM -0500, Waiman Long wrote: > The snprintf() function can return a length greater than the given > input size. That will require a check for buffer overrun after each > invocation of snprintf(). scnprintf(), on the other hand, will never > return a greater length. By using scnprintf() in selected places, we > can avoid some buffer overrun checks except after stack_depot_snprint() > and after the last snprintf(). > > Signed-off-by: Waiman Long <longman@redhat.com> > Acked-by: David Rientjes <rientjes@google.com> > Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Acked-by: Roman Gushchin <guro@fb.com>
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