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Re: [RFC PATCH 14/30] mm: prevent slabobj_ext allocations for slabobj_ext and kmem_cache objects
- To: Roman Gushchin <roman.gushchin@xxxxxxxxx>
- From: Suren Baghdasaryan <surenb@xxxxxxxxxx>
- Date: Thu, 1 Sep 2022 17:24:40 -0700
- Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Kent Overstreet <kent.overstreet@xxxxxxxxx>, Michal Hocko <mhocko@xxxxxxxx>, Vlastimil Babka <vbabka@xxxxxxx>, Johannes Weiner <hannes@xxxxxxxxxxx>, Mel Gorman <mgorman@xxxxxxx>, Davidlohr Bueso <dave@xxxxxxxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, "Liam R. Howlett" <liam.howlett@xxxxxxxxxx>, David Vernet <void@xxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Juri Lelli <juri.lelli@xxxxxxxxxx>, Laurent Dufour <ldufour@xxxxxxxxxxxxx>, Peter Xu <peterx@xxxxxxxxxx>, David Hildenbrand <david@xxxxxxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, mcgrof@xxxxxxxxxx, masahiroy@xxxxxxxxxx, nathan@xxxxxxxxxx, changbin.du@xxxxxxxxx, ytcoode@xxxxxxxxx, Vincent Guittot <vincent.guittot@xxxxxxxxxx>, Dietmar Eggemann <dietmar.eggemann@xxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Benjamin Segall <bsegall@xxxxxxxxxx>, Daniel Bristot de Oliveira <bristot@xxxxxxxxxx>, Valentin Schneider <vschneid@xxxxxxxxxx>, Christopher Lameter <cl@xxxxxxxxx>, Pekka Enberg <penberg@xxxxxxxxxx>, Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>, 42.hyeyoo@xxxxxxxxx, Alexander Potapenko <glider@xxxxxxxxxx>, Marco Elver <elver@xxxxxxxxxx>, Dmitry Vyukov <dvyukov@xxxxxxxxxx>, Shakeel Butt <shakeelb@xxxxxxxxxx>, Muchun Song <songmuchun@xxxxxxxxxxxxx>, arnd@xxxxxxxx, jbaron@xxxxxxxxxx, David Rientjes <rientjes@xxxxxxxxxx>, Minchan Kim <minchan@xxxxxxxxxx>, Kalesh Singh <kaleshsingh@xxxxxxxxxx>, kernel-team <kernel-team@xxxxxxxxxxx>, linux-mm <linux-mm@xxxxxxxxx>, iommu@xxxxxxxxxxxxxxx, kasan-dev@xxxxxxxxxxxxxxxx, io-uring@xxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-bcache@xxxxxxxxxxxxxxx, linux-modules@xxxxxxxxxxxxxxx, LKML <linux-kernel@xxxxxxxxxxxxxxx>
- Delivery-date: Fri, 02 Sep 2022 00:24:54 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Thu, Sep 1, 2022 at 4:41 PM Roman Gushchin <roman.gushchin@xxxxxxxxx> wrote:
>
> On Tue, Aug 30, 2022 at 02:49:03PM -0700, Suren Baghdasaryan wrote:
> > Use __GFP_NO_OBJ_EXT to prevent recursions when allocating slabobj_ext
> > objects. Also prevent slabobj_ext allocations for kmem_cache objects.
> >
> > Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
>
> Patches 12-14 look good to me.
> It's probably to early to ack anything, but otherwise I'd ack them.
Thank you for reviewing!
>
> Thanks!
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