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bh=8RJ2Yn7WpwUCye9rkv6tfQ0zZ5Kyo7robmi/5qT0aAk=; b=lYzXjA+yHSWKnaiT390cHuoMq8GMY1ziGzJzd9H4zm6UvL9iNHdwfe6CkEw44+t+H68lgu 2qZMczSPsYFlo5bGck/TGLGeKu6dbuI4d09bkCPt/otG+KHnuiSVX2zUr1UNUJlVgCGQ0n EUo8pwIM8MPfIb8bpUATRMIxZftn64Q= Received: by verein.lst.de (Postfix, from userid 2407) id C578F68AFE; Wed, 28 Oct 2026 15:41:48 +0100 (CET) Date: Wed, 28 Oct 2026 15:41:48 +0100 From: Christoph Hellwig To: Salvatore Dipietro Cc: hannes@cmpxchg.org, 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, 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: <20261028144148.GA14023@lst.de> 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> User-Agent: Mutt/1.5.17 (2007-11-01) X-Rspam-User: X-Rspamd-Queue-Id: 7C98240007 X-Stat-Signature: aof9kkd7u5gupgcekwyfztghoia15rop X-Rspamd-Server: rspam01 X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=4.0.1 X-HE-Tag: 1793198514-145015 X-HE-Meta: U2FsdGVkX18O4YLhIPicUuGTQbRiSNIXCYbqeSbnZiqLdaiTLukVoGsPOCJaJPRRYBJn5y6kLtJFSUaWVXW0p3zl9GxgrH1UwVxrpT3M7Jti7JpErH3zoTXdxqdyUaBa2uyBNTThoifs6t/mmxW5qsCWuZtXiA4MXgkzGr5w7Vg/qVw1jXsIO4pSZsr9G6zZXuwNRLgMu8tgiNxV6ab5+BcEaF3TcPfuzr15NFFYhL2BihN89GYiDryAMm01OIde3AsOIfWs4ufRBoR08r6XUi3NJSQeIFM+VXxQ1UG0PEIYbqPKwO0DYOcnuQN3MaGSmKoFxbJPL3x2EiiZR4bePAnZWYcUuKCmDhQWEjQfvcY3Hdh4+HvWRMmX0frXqDaiz1bI8DtjOXA8uiI9HHITtcGGd1LQXacuqfKrnUK7Xxr3LfISEgGXgqT+/CidDzdhJjyNRv0S/pZINub5aVkJtrgVMyg24AFNhYXpBM4PKgsFWtUM8eiYSKndDTieLyF9XiMRCIsnU9aLNjH3j8Np9XZmcMKdyO8p/i+1xfFKjH1PzxDpiEhSAxyizFNIyq/VOkyWJ6F43tnjEasvNrWeGwcIVenp2bIhjZHjvqzbPX83HcqUpJrySRkaknVkwhRmJRmn7zEM8+SzPvjNp23bgwGlcrRBAk5DPlgCqDoHZFMozxlEsy8ANtpxjW1MgD5r1h4P1wOVUgJnvqOHcq6PJJAj1mLRGiXktMIrVa2hwDjaX476A/RkZVf/VBoSDlGD0TcvMcIuqH91G5s10WJOg2FED+CCnPwNPymm9NP5mRq0eWXylAlrem9GmN/f+R9sL6u0+W8vt17GHkxHpZwedXElMS96VhUdwqE8yKWp7lT6hdZraFZs/loI1b2oDZwAxB/2/+3qkd0fac6pMcY5lcY8p3I2xP2jkP8OQSnQJDhqCCRmzp0RqgnfAYdz7E7istHnyFMQqMK1n5dTeT8 9fps6UnN uw6L7j/8jMiX9yrQsp1VtwaQBjL5ZVW3JQJYS5cZIwmjHGWw7CdcyGPh6Ot3u7s1HYxfiuGm/g6vGgsEoLiTQ4/iiayRCEvmdxkjlwDTsKyom1e/D0Ak0Qq3UNcdpPfTQL2P4yRz/rnYMot1WAJOvKLB5Pwucqd5yxCSUSZZe8md4+4AozaP/OgcsXawt/pKvetuHCQfLOyaif5GYiZmWnZdtKQ== 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. It would be really important to get some fix for this into 7.3. We can still perfect it later.