Re: [linus:master] [fs/dax] bde708f1a6: WARNING:at_mm/truncate.c:#truncate_folio_batch_exceptionals

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To: Jan Kara <jack@xxxxxxx>
Subject: Re: [linus:master] [fs/dax] bde708f1a6: WARNING:at_mm/truncate.c:#truncate_folio_batch_exceptionals
From: Christian Brauner <brauner@xxxxxxxxxx>
Date: Fri, 11 Apr 2025 16:03:29 +0200
Cc: Alistair Popple <apopple@xxxxxxxxxx>, kernel test robot <oliver.sang@xxxxxxxxx>, oe-lkp@xxxxxxxxxxxxxxx, lkp@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Dan Williams <dan.j.williams@xxxxxxxxx>, Alison Schofield <alison.schofield@xxxxxxxxx>, Alexander Gordeev <agordeev@xxxxxxxxxxxxx>, Asahi Lina <lina@xxxxxxxxxxxxx>, Balbir Singh <balbirs@xxxxxxxxxx>, Bjorn Helgaas <bhelgaas@xxxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, Chunyan Zhang <zhang.lyra@xxxxxxxxx>, "Darrick J. Wong" <djwong@xxxxxxxxxx>, Dave Chinner <david@xxxxxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Dave Jiang <dave.jiang@xxxxxxxxx>, David Hildenbrand <david@xxxxxxxxxx>, Gerald Schaefer <gerald.schaefer@xxxxxxxxxxxxx>, Heiko Carstens <hca@xxxxxxxxxxxxx>, Huacai Chen <chenhuacai@xxxxxxxxxx>, Ira Weiny <ira.weiny@xxxxxxxxx>, Jason Gunthorpe <jgg@xxxxxxxxxx>, Jason Gunthorpe <jgg@xxxxxxxx>, John Hubbard <jhubbard@xxxxxxxxxx>, linmiaohe <linmiaohe@xxxxxxxxxx>, Logan Gunthorpe <logang@xxxxxxxxxxxx>, Matthew Wilcow <willy@xxxxxxxxxxxxx>, Michael Camp Drill Sergeant Ellerman <mpe@xxxxxxxxxxxxxx>, Nicholas Piggin <npiggin@xxxxxxxxx>, Peter Xu <peterx@xxxxxxxxxx>, Sven Schnelle <svens@xxxxxxxxxxxxx>, "Ted Ts'o" <tytso@xxxxxxx>, Vasily Gorbik <gor@xxxxxxxxxxxxx>, Vishal Verma <vishal.l.verma@xxxxxxxxx>, Vivek Goyal <vgoyal@xxxxxxxxxx>, WANG Xuerui <kernel@xxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, nvdimm@xxxxxxxxxxxxxxx, linux-xfs@xxxxxxxxxxxxxxx
In-reply-to: <uiu7rcmtooxgbscaiiim7czqsca52bgrt6aiszsafq7jj4n3e7@ge6mfzcmnorl>

> didn't lift off and DAX ended up being kind of niche, I think the effort
> to maintain DAX in ext2 is not justified and we should just drop it (and
> direct existing users to use ext4 driver instead for the cases where they
> need it). I'll have a look into it.

+1

References:
- [linus:master] [fs/dax] bde708f1a6: WARNING:at_mm/truncate.c:#truncate_folio_batch_exceptionals
  - From: kernel test robot
- Re: [linus:master] [fs/dax] bde708f1a6: WARNING:at_mm/truncate.c:#truncate_folio_batch_exceptionals
  - From: Alistair Popple
- Re: [linus:master] [fs/dax] bde708f1a6: WARNING:at_mm/truncate.c:#truncate_folio_batch_exceptionals
  - From: Jan Kara

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