Messages in this thread | | | From | Joonsoo Kim <> | Date | Fri, 1 Jul 2016 23:37:17 +0900 | Subject | Re: [PATCH v3] kasan/quarantine: fix bugs on qlist_move_cache() |
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2016-07-01 23:20 GMT+09:00 Dmitry Vyukov <dvyukov@google.com>: > On Fri, Jul 1, 2016 at 4:18 PM, Andrey Ryabinin <aryabinin@virtuozzo.com> wrote: >> >> >> On 07/01/2016 05:15 PM, Dmitry Vyukov wrote: >>> On Fri, Jul 1, 2016 at 4:09 PM, Joonsoo Kim <js1304@gmail.com> wrote: >>>> 2016-07-01 23:03 GMT+09:00 Dmitry Vyukov <dvyukov@google.com>: >> >>>>>> + >>>>>> + if (obj_cache == cache) >>>>>> + qlist_put(to, qlink, cache->size); >>>>>> + else >>>>>> + qlist_put(from, qlink, cache->size); >>>>> >>>>> This line is wrong. If obj_cache != cache, object size != cache->size. >>>>> Quarantine contains objects of different sizes. >>>> >>>> You're right. 11 pm is not good time to work. :/ >>>> If it is fixed, the patch looks correct to you? >>>> I will fix it and send v4 on next week. >>> >>> >>> I don't see anything else wrong. But I need to see how you fix the size issue. >>> Performance of this operation is not particularly critical, so the >>> simpler the better. >> >> Is there any other way besides obvious: s/cache->size/obj_cache->size ? > > We can remember the original bytes, then subtract > num_objects_moved*cache->size from it and assign to from->bytes.
I'd prefer s/cache->size/obj_cache->size. It looks simpler. If there is no objection, I will use it on v4.
Thanks.
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