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Date: Thu, 23 Jul 2020 11:46:30 +0530 From: Anshuman Khandual <anshuman.khandual@....com> To: Baoquan He <bhe@...hat.com>, linux-kernel@...r.kernel.org Cc: linux-mm@...ck.org, mike.kravetz@...cle.com, david@...hat.com, akpm@...ux-foundation.org Subject: Re: [PATCH v2 4/4] mm/hugetl.c: warn out if expected count of huge pages adjustment is not achieved On 07/23/2020 08:52 AM, Baoquan He wrote: > A customer complained that no message is logged wh en the number of > persistent huge pages is not changed to the exact value written to > the sysfs or proc nr_hugepages file. > > In the current code, a best effort is made to satisfy requests made > via the nr_hugepages file. However, requests may be only partially > satisfied. > > Log a message if the code was unsuccessful in fully satisfying a > request. This includes both increasing and decreasing the number > of persistent huge pages. But is kernel expected to warn for all such situations where the user requested resources could not be allocated completely ? Otherwise, it does not make sense to add an warning for just one such situation.
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