Messages in this thread |  | | Subject | Re: [RESEND PATCH V4] pidns: introduce syscall translate_pid | From | Nagarathnam Muthusamy <> | Date | Tue, 3 Apr 2018 14:51:04 -0700 |
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On 04/03/2018 02:52 PM, Andrew Morton wrote: > On Tue, 3 Apr 2018 14:45:28 -0700 Nagarathnam Muthusamy <nagarathnam.muthusamy@oracle.com> wrote: > >>> This changelog doesn't explain what the value is to our users. I >>> assume it is a performance optimization because "backward translation >>> requires scanning all tasks"? If so, please show us real-world >>> examples of the performance benefit from this patch, and please go to >>> great lengths to explain to us why this optimisation is needed by our >>> users. >> One of the usecase by Oracle database involves multiple levels of >> nested pid namespaces and we require pid translation between the >> levels. Discussions on the particular usecase, why any of the existing >> methods was not usable happened in the following thread. >> >> https://patchwork.kernel.org/patch/10276785/ >> >> At the end, it was agreed that this patch along with flocks will solve the >> issue. > Nobody who reads this patch's changelog will know any of this. Please > let's get all this information into the proper place. Sure! Will resend the patch with updated change log.
Thanks, Nagarathnam. >
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