Re: [v9.1] sepgsql - userspace access vector cache
От | Yeb Havinga |
---|---|
Тема | Re: [v9.1] sepgsql - userspace access vector cache |
Дата | |
Msg-id | 4E294CE8.7090908@gmail.com обсуждение исходный текст |
Ответ на | Re: [v9.1] sepgsql - userspace access vector cache (Kohei Kaigai <Kohei.Kaigai@EMEA.NEC.COM>) |
Ответы |
Re: [v9.1] sepgsql - userspace access vector cache
|
Список | pgsql-hackers |
On 2011-07-22 11:55, Kohei Kaigai wrote: > >> 2) Also I thought if it could work to not remember tcontext is valid, but instead remember the consequence, >> which is that it is replaced by "unlabeled". It makes the avc_cache struct shorter and the code somewhat >> simpler. >> > Here is a reason why we hold tcontext, even if it is not valid. > The hash key of avc_cache is combination of scontext, tcontext and tclass. Thus, if we replaced an invalid > tcontext by unlabeled context, it would always make cache mishit and performance loss. I see that now, thanks. I have no further comments, and I think that the patch in it's current status is ready for committer. regards, -- Yeb Havinga http://www.mgrid.net/ Mastering Medical Data
В списке pgsql-hackers по дате отправления: