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Wed, 28 Oct 2026 08:19:07 -0700 (PDT) Date: Wed, 28 Oct 2026 11:19:03 -0400 From: Johannes Weiner To: Salvatore Dipietro Cc: abuehaze@amazon.com, akpm@linux-foundation.org, alisaidi@amazon.com, blakgeof@amazon.com, brauner@kernel.org, brendan.jackman@linux.dev, david@redhat.com, dgc@kernel.org, dipietro.salvatore@gmail.com, djwong@kernel.org, hch@infradead.org, hch@lst.de, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-xfs@vger.kernel.org, matt@readmodwrite.com, mhocko@suse.com, ritesh.list@gmail.com, rvvandan@amazon.com, stable@vger.kernel.org, surenb@google.com, vbabka@kernel.org, willy@infradead.org, ziy@nvidia.com Subject: Re: [PATCH 1/2] mm: page_alloc: do not give all non-blocking requests reserve access Message-ID: References: <20261027150002.318916-1-dipiets@amazon.it> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261027150002.318916-1-dipiets@amazon.it> X-Stat-Signature: n8rtapcqrb9115s9df5yb999z48dubyt X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 57DF34000B X-Rspam-User: X-HE-Tag: 1793200749-556129 X-HE-Meta: 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 TfuoGMC4 8U9F1zIm/V0yQGDxGRlME8d/fONCI0x9+Sk64K4zA2b7bk9avEYvRuaB621MGUED9RbU65jwaMOtreSkI1adHEli+hQoQUEX+0ohvrVzzytCLJLKpH9/tnAG1YgKtSyrNl/3yI3V6MvMjxpJSQLvT/FYtrKX+kpJ75jCfSBGTIVZOytwLpYhxaghxwPSchfzis+43kPiIAtRD0qIHM0HWQ8807Ob2tHsL+/arSeWUfqp5S+N6Dg/AzbibnwLD6eK1xcgOqSeuzoC6G3kEu3ymLBV2C7CkLhUHZbDjvExVpYkYWOHy98y8tggi3KoybRhb/CWxGEbJ8xsZKIBtfXdwzoD3fjzQ0drhWZx2kDo1V2a4+a2Y3IpIcTAwGByfMuH5B7hNqR2XyVU6tN18AR18Fzxn0JQgGRsqRPpQcUv/impVnY9gp7+Pzk8yvn17E8MhYe4k2H0iXoSSMWfvLNtDN/Uiwal00F+t1l/jegErC8l0WadN8qbgFk6Lc+BjOuk9L3qAbSGmfBAHMSVBRoBtVXkAXQV2NEw2JU22GTguWP2TY0g= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Tue, Oct 27, 2026 at 03:00:02PM +0000, Salvatore Dipietro wrote: > > Hi Johannes, > > Vlastimil asked that v6 of my page_alloc patch [1] not go to mainline > before these two patches land, so Andrew parked v6 at the tail of > mm-unstable and dropped its Cc: stable until then. > > Are you still planning to work on 1/2 and 2/2, and if so, do you have > a rough ETA? Or would you rather post them as a separate series as > they are? If anything is needed on my side to move them forward, I'm > happy to help. > > For what it's worth, I ran both stacked under v6 on v7.3-rc1 and saw > no performance difference on my benchmark with or without them. > > [1] https://lore.kernel.org/linux-mm/20261001082152.2879289-1-dipiets@amazon.it/ I'll work on this today, will have patches before EOD. Sorry for dropping this.