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From: Christoph Hellwig <hch@lst.de>
To: Salvatore Dipietro <dipiets@amazon.it>
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
Date: Wed, 28 Oct 2026 15:41:48 +0100	[thread overview]
Message-ID: <20261028144148.GA14023@lst.de> (raw)
In-Reply-To: <20261027150002.318916-1-dipiets@amazon.it>

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.



  reply	other threads:[~2026-10-28 14:41 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-04 11:56 [PATCH v4] mm/page_alloc: avoid direct compaction for costly __GFP_NORETRY allocations Salvatore Dipietro
2026-09-04 14:11 ` Vlastimil Babka (SUSE)
2026-09-04 15:08   ` Zi Yan
2026-09-07  7:30     ` Vlastimil Babka (SUSE)
2026-09-09  2:33       ` Zi Yan
2026-09-09  8:51         ` Vlastimil Babka (SUSE)
2026-09-04 16:10 ` Johannes Weiner
2026-09-06  0:42 ` Andrew Morton
2026-09-06 23:05   ` Dave Chinner
2026-09-10 11:46   ` Salvatore Dipietro
2026-09-10 22:00     ` Andrew Morton
2026-09-11 14:30       ` Salvatore Dipietro
2026-09-11 15:59     ` Johannes Weiner
2026-09-16 11:24       ` Vlastimil Babka (SUSE)
2026-09-16 15:58         ` Johannes Weiner
2026-09-16 22:34           ` Andrew Morton
2026-09-16 22:35             ` Andrew Morton
2026-09-19  4:13               ` Matthew Wilcox
2026-09-21  9:35                 ` Vlastimil Babka (SUSE)
2026-09-23  9:25                   ` Salvatore Dipietro
2026-09-18  7:05           ` Vlastimil Babka (SUSE)
2026-09-18 21:28             ` Andrew Morton
2026-09-22  8:44               ` Vlastimil Babka (SUSE)
2026-09-21 14:37             ` Johannes Weiner
2026-09-21 14:38               ` [PATCH 1/2] mm: page_alloc: do not give all non-blocking requests reserve access Johannes Weiner
2026-09-21 14:54                 ` Matthew Wilcox
2026-09-21 15:58                   ` Johannes Weiner
2026-09-22 11:52                     ` Vlastimil Babka (SUSE)
2026-09-22 13:56                       ` Johannes Weiner
2026-09-24 14:34                         ` Vlastimil Babka (SUSE)
2026-09-21 14:39               ` [PATCH 2/2] mm: page_alloc: remove ALLOC_NON_BLOCK from ALLOC_RESERVES Johannes Weiner
2026-09-22 12:06                 ` Vlastimil Babka (SUSE)
2026-09-22 14:00                   ` Johannes Weiner
2026-10-27 15:00                 ` [PATCH 1/2] mm: page_alloc: do not give all non-blocking requests reserve access Salvatore Dipietro
2026-10-28 14:41                   ` Christoph Hellwig [this message]
2026-10-29  5:55                     ` Andrew Morton
2026-10-28 15:19                   ` Johannes Weiner
2026-10-28 17:21                     ` Johannes Weiner
2026-09-07  5:54 ` [PATCH v4] mm/page_alloc: avoid direct compaction for costly __GFP_NORETRY allocations Christoph Hellwig
  -- strict thread matches above, loose matches on Subject: below --
2026-10-28 17:15 [PATCH v2 0/2] mm: page_alloc: fix reserve access for non-blocking requests Johannes Weiner
2026-10-28 17:15 ` [PATCH 1/2] mm: page_alloc: do not give all non-blocking requests reserve access Johannes Weiner
2026-10-29  6:59   ` Balbir Singh

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