From: Matthew Wilcox <willy@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>,
"Pankaj Raghav (Samsung)" <kernel@pankajraghav.com>,
chandan.babu@oracle.com, djwong@kernel.org, brauner@kernel.org,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
yang@os.amperecomputing.com, linux-mm@kvack.org,
john.g.garry@oracle.com, linux-fsdevel@vger.kernel.org,
hare@suse.de, p.raghav@samsung.com, mcgrof@kernel.org,
gost.dev@samsung.com, cl@os.amperecomputing.com,
linux-xfs@vger.kernel.org, hch@lst.de, Zi Yan <zi.yan@sent.com>
Subject: Re: [PATCH v8 01/10] fs: Allow fine-grained control of folio sizes
Date: Fri, 5 Jul 2024 16:14:31 +0100 [thread overview]
Message-ID: <ZogN12rTqp7qfLVY@casper.infradead.org> (raw)
In-Reply-To: <Zod3ZQizBL7MyWEA@dread.disaster.area>
On Fri, Jul 05, 2024 at 02:32:37PM +1000, Dave Chinner wrote:
> > If the device is
> > asking for a blocksize > PAGE_SIZE and CONFIG_TRANSPARENT_HUGEPAGE is
> > not set, you should also decline to mount the filesystem.
>
> What does CONFIG_TRANSPARENT_HUGEPAGE have to do with filesystems
> being able to use large folios?
You can't have large folios without CONFIG_TRANSPARENT_HUGEPAGE.
There's a bunch of infrastructure that's gated behind that. I used to say
"somebody should fix that up", but honestly the amount of work I'm willing
to do to support hobbyist architectures has decreased dramatically.
Any useful system has THP support.
next prev parent reply other threads:[~2024-07-05 15:14 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-25 11:44 [PATCH v8 00/10] enable bs > ps in XFS Pankaj Raghav (Samsung)
2024-06-25 11:44 ` [PATCH v8 01/10] fs: Allow fine-grained control of folio sizes Pankaj Raghav (Samsung)
2024-07-04 12:23 ` Ryan Roberts
2024-07-04 15:20 ` Matthew Wilcox
2024-07-04 15:52 ` Ryan Roberts
2024-07-04 21:28 ` Pankaj Raghav (Samsung)
2024-07-04 22:06 ` Dave Chinner
2024-07-04 23:56 ` Matthew Wilcox
2024-07-05 4:32 ` Dave Chinner
2024-07-05 9:03 ` Ryan Roberts
2024-07-05 12:45 ` Pankaj Raghav (Samsung)
2024-07-05 13:24 ` Pankaj Raghav (Samsung)
2024-07-05 13:31 ` Ryan Roberts
2024-07-05 14:14 ` Pankaj Raghav (Samsung)
2024-07-08 23:01 ` Dave Chinner
2024-07-09 8:11 ` Ryan Roberts
2024-07-09 13:08 ` Pankaj Raghav (Samsung)
2024-07-05 15:14 ` Matthew Wilcox [this message]
2024-07-04 21:34 ` Pankaj Raghav (Samsung)
2024-07-09 16:29 ` Pankaj Raghav (Samsung)
2024-07-09 16:38 ` Matthew Wilcox
2024-07-09 17:33 ` Pankaj Raghav (Samsung)
2024-07-09 16:50 ` Darrick J. Wong
2024-07-09 21:08 ` Pankaj Raghav (Samsung)
2024-07-09 21:59 ` Darrick J. Wong
2024-06-25 11:44 ` [PATCH v8 02/10] filemap: allocate mapping_min_order folios in the page cache Pankaj Raghav (Samsung)
2024-06-25 15:52 ` Matthew Wilcox
2024-06-25 18:06 ` Pankaj Raghav (Samsung)
2024-06-25 11:44 ` [PATCH v8 03/10] readahead: allocate folios with mapping_min_order in readahead Pankaj Raghav (Samsung)
2024-07-02 19:38 ` Darrick J. Wong
2024-07-03 14:10 ` Pankaj Raghav (Samsung)
2024-07-04 14:24 ` Ryan Roberts
2024-07-04 14:29 ` Matthew Wilcox
2024-06-25 11:44 ` [PATCH v8 04/10] mm: split a folio in minimum folio order chunks Pankaj Raghav (Samsung)
2024-06-25 14:45 ` Zi Yan
2024-06-25 17:20 ` Pankaj Raghav (Samsung)
2024-06-25 11:44 ` [PATCH v8 05/10] filemap: cap PTE range to be created to allowed zero fill in folio_map_range() Pankaj Raghav (Samsung)
2024-07-01 23:39 ` Darrick J. Wong
2024-06-25 11:44 ` [PATCH v8 06/10] iomap: fix iomap_dio_zero() for fs bs > system page size Pankaj Raghav (Samsung)
2024-07-01 2:37 ` Dave Chinner
2024-07-01 11:22 ` Pankaj Raghav (Samsung)
2024-07-01 23:40 ` Darrick J. Wong
2024-07-02 7:42 ` Christoph Hellwig
2024-07-02 10:15 ` Pankaj Raghav (Samsung)
2024-07-02 12:02 ` Christoph Hellwig
2024-07-02 14:01 ` Pankaj Raghav (Samsung)
2024-07-02 15:42 ` Christoph Hellwig
2024-07-02 16:13 ` Pankaj Raghav (Samsung)
2024-07-02 16:51 ` Matthew Wilcox
2024-07-02 17:10 ` Pankaj Raghav (Samsung)
2024-07-03 5:16 ` Christoph Hellwig
2024-07-02 16:50 ` Matthew Wilcox
2024-07-02 13:49 ` Luis Chamberlain
2024-06-25 11:44 ` [PATCH v8 07/10] xfs: use kvmalloc for xattr buffers Pankaj Raghav (Samsung)
2024-06-25 18:07 ` Pankaj Raghav (Samsung)
2024-06-25 11:44 ` [PATCH v8 08/10] xfs: expose block size in stat Pankaj Raghav (Samsung)
2024-07-01 2:33 ` Dave Chinner
2024-06-25 11:44 ` [PATCH v8 09/10] xfs: make the calculation generic in xfs_sb_validate_fsb_count() Pankaj Raghav (Samsung)
2024-07-01 2:34 ` Dave Chinner
2024-06-25 11:44 ` [PATCH v8 10/10] xfs: enable block size larger than page size support Pankaj Raghav (Samsung)
2024-07-01 2:34 ` Dave Chinner
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