On Fri, Mar 5, 2021 at 2:31 AM Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > > On Thu, 4 Mar 2021 22:05:48 +0100 Alexander Potapenko <glider@xxxxxxxxxx> wrote: > > > On Thu, Mar 4, 2021 at 9:53 PM Marco Elver <elver@xxxxxxxxxx> wrote: > > > > > > cache_alloc_debugcheck_after() performs checks on an object, including > > > adjusting the returned pointer. None of this should apply to KFENCE > > > objects. While for non-bulk allocations, the checks are skipped when we > > > allocate via KFENCE, for bulk allocations cache_alloc_debugcheck_after() > > > is called via cache_alloc_debugcheck_after_bulk(). > > > > @Andrew, is this code used by anyone? > > As far as I understand, it cannot be enabled by any config option, so > > nobody really tests it. > > If it is still needed, shall we promote #if DEBUGs in slab.c to a > > separate config option, or maybe this code can be safely removed? > > It's all used: Got it, sorry for being too hasty!