From: Hannes Reinecke <hare@suse.de>
To: "Pankaj Raghav (Samsung)" <kernel@pankajraghav.com>,
linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org
Cc: djwong@kernel.org, mcgrof@kernel.org, linux-mm@kvack.org,
david@fromorbit.com, akpm@linux-foundation.org,
gost.dev@samsung.com, linux-kernel@vger.kernel.org,
chandan.babu@oracle.com, willy@infradead.org
Subject: Re: [PATCH v2 01/13] mm: Support order-1 folios in the page cache
Date: Fri, 1 Mar 2024 18:08:05 +0100 [thread overview]
Message-ID: <1e789901-82a2-40db-b818-cc1c5b6e9ea5@suse.de> (raw)
In-Reply-To: <20240301164444.3799288-2-kernel@pankajraghav.com>
On 3/1/24 17:44, Pankaj Raghav (Samsung) wrote:
> From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
>
> Folios of order 1 have no space to store the deferred list. This is
> not a problem for the page cache as file-backed folios are never
> placed on the deferred list. All we need to do is prevent the core
> MM from touching the deferred list for order 1 folios and remove the
> code which prevented us from allocating order 1 folios.
>
> Link: https://lore.kernel.org/linux-mm/90344ea7-4eec-47ee-5996-0c22f42d6a6a@google.com/
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> ---
> include/linux/huge_mm.h | 7 +++++--
> mm/filemap.c | 2 --
> mm/huge_memory.c | 23 ++++++++++++++++++-----
> mm/internal.h | 4 +---
> mm/readahead.c | 3 ---
> 5 files changed, 24 insertions(+), 15 deletions(-)
>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
hare@suse.de +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich
next prev parent reply other threads:[~2024-03-01 17:08 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-01 16:44 [PATCH v2 00/13] enable bs > ps in XFS Pankaj Raghav (Samsung)
2024-03-01 16:44 ` [PATCH v2 01/13] mm: Support order-1 folios in the page cache Pankaj Raghav (Samsung)
2024-03-01 17:08 ` Hannes Reinecke [this message]
2024-03-01 16:44 ` [PATCH v2 02/13] fs: Allow fine-grained control of folio sizes Pankaj Raghav (Samsung)
2024-03-01 17:09 ` Hannes Reinecke
2024-03-01 16:44 ` [PATCH v2 03/13] filemap: align the index to mapping_min_order in the page cache Pankaj Raghav (Samsung)
2024-03-01 19:26 ` Matthew Wilcox
2024-03-01 20:04 ` Kent Overstreet
2024-03-04 15:38 ` Pankaj Raghav (Samsung)
2024-03-04 15:36 ` Pankaj Raghav (Samsung)
2024-03-01 16:44 ` [PATCH v2 04/13] filemap: use mapping_min_order while allocating folios Pankaj Raghav (Samsung)
2024-03-01 16:44 ` [PATCH v2 05/13] readahead: round up file_ra_state->ra_pages to mapping_min_nrpages Pankaj Raghav (Samsung)
2024-03-01 16:44 ` [PATCH v2 06/13] readahead: align index to mapping_min_order in ondemand_ra and force_ra Pankaj Raghav (Samsung)
2024-03-01 16:44 ` [PATCH v2 07/13] readahead: rework loop in page_cache_ra_unbounded() Pankaj Raghav (Samsung)
2024-03-01 16:44 ` [PATCH v2 08/13] readahead: allocate folios with mapping_min_order in ra_(unbounded|order) Pankaj Raghav (Samsung)
2024-03-01 16:44 ` [PATCH v2 09/13] mm: do not split a folio if it has minimum folio order requirement Pankaj Raghav (Samsung)
2024-03-01 16:44 ` [PATCH v2 10/13] iomap: fix iomap_dio_zero() for fs bs > system page size Pankaj Raghav (Samsung)
2024-03-01 16:44 ` [PATCH v2 11/13] xfs: expose block size in stat Pankaj Raghav (Samsung)
2024-03-01 16:44 ` [PATCH v2 12/13] xfs: make the calculation generic in xfs_sb_validate_fsb_count() Pankaj Raghav (Samsung)
2024-03-01 16:44 ` [PATCH v2 13/13] xfs: enable block size larger than page size support Pankaj Raghav (Samsung)
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