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peterx@redhat.com, wangkefeng.wang@huawei.com, usamaarif642@gmail.com, sunnanyong@huawei.com, vishal.moola@gmail.com, thomas.hellstrom@linux.intel.com, yang@os.amperecomputing.com, aarcange@redhat.com, raquini@redhat.com, anshuman.khandual@arm.com, catalin.marinas@arm.com, tiwai@suse.de, will@kernel.org, dave.hansen@linux.intel.com, jack@suse.cz, cl@gentwo.org, jglisse@google.com, surenb@google.com, zokeefe@google.com, hannes@cmpxchg.org, rientjes@google.com, mhocko@suse.com, rdunlap@infradead.org, hughd@google.com, richard.weiyang@gmail.com, lance.yang@linux.dev, vbabka@suse.cz, rppt@kernel.org, jannh@google.com, pfalcato@suse.de Subject: Re: [PATCH v11 00/15] khugepaged: mTHP support Message-ID: References: <80c50bf4-27b1-483c-9977-2519369c2630@redhat.com> <7ri4u7uxsv6elyohqiq2w5oxv4yhk2tyniwglfxtiueiyofb3n@l4exlmlf5ty4> <59641180-a0d9-400c-aaeb-0c9e93954bf5@redhat.com> <78d75263-e0ab-4dcd-ae97-5c5c9bb10193@redhat.com> <85aa2020-5b5e-4bfc-aade-581d20aeff87@lucifer.local> 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X-Proofpoint-GUID: -A08sls9L1FmGQpxLXBJ30R4PXDk3raO On Mon, Sep 15, 2025 at 12:37:28PM +0200, David Hildenbrand wrote: > On 15.09.25 12:32, Lorenzo Stoakes wrote: > > On Mon, Sep 15, 2025 at 12:25:54PM +0200, David Hildenbrand wrote: > > > > > > > > > > I would just say "The kernel might decide to use a more conservative approach > > > > > when collapsing smaller THPs" etc. > > > > > > > > > > > > > > > Thoughts? > > > > > > > > Well I've sort of reviewed oppositely there :) well at least that it needs to be > > > > a hell of a lot clearer (I find that comment really compressed and I just don't > > > > really understand it). > > > > > > Right. I think these are just details we should hide from the user. And in > > > particular, not over-document it so we can more easily change semantics > > > later. > > > > And when we change semantics we can't change comments? > > > > I mean maybe we're talking across purposes here, I'm talking about code > > comments, not the documentation. > > > > I agree the documentation should not mention any of this. > > Yes, I was talking about patch #15 ("It's just when it comes to documenting > all that stuff in patch #15"). > > Comments we can adjust as we please of course :) Yeah, ok this was just a misunderstanding then! :) We are in agreement. > > -- > Cheers > > David / dhildenb > Cheers, Lorenzo