Re: [page-reclaim] Re: [GIT PULL] Multi-gen LRU for 5.18-rc1

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On 28.03.22 15:43, Matthew Wilcox wrote:
> On Mon, Mar 28, 2022 at 02:29:20PM +0200, David Hildenbrand wrote:
>> I'd appreciate if we could merge most MM-related stuff through the -MM
>> tree; it exists for a reason IMHO. Andrew, you usually have a very good
>> feeling when something's ready to be merged upstream (sufficient review
>> from relevant folks, sufficient exposure via -mm and -next, ...).
> 
> The problem is that the MM tree is completely unusable when patches going
> in through other trees need to be based on it.  The MM workflow clearly
> works well for Andrew, but it doesn't work well for us as a community.
> 
> Fortunately folios is past that point now, but I fear that maple tree
> will get to that point if it doesn't go in through Andrew's tree this
> cycle, as it may have other users.

Yes, there are most certainly special cases, like folios and eventually
like the maple tree rework. But I consider these exceptions to the
general rule. And the exceptions should follow the same ACKing/review
process as other -MM stuff, as Linus nicely identified here.

-- 
Thanks,

David / dhildenb




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