From: Matthew Wilcox <willy@infradead.org>
To: Hannes Reinecke <hare@suse.de>
Cc: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, Luis Chamberlain <mcgrof@kernel.org>,
Keith Busch <kbusch@kernel.org>
Subject: Re: [PATCH 4/5] brd: limit maximal block size to 32M
Date: Mon, 6 Mar 2023 17:40:04 +0000 [thread overview]
Message-ID: <ZAYldLT52jAc82Xj@casper.infradead.org> (raw)
In-Reply-To: <20230306120127.21375-5-hare@suse.de>
On Mon, Mar 06, 2023 at 01:01:26PM +0100, Hannes Reinecke wrote:
> Use an arbitrary limit of 32M for the maximal blocksize so as not
> to overflow the page cache.
The page allocator tops out at MAX_ORDER (generally 4MB), so that might
be a better limit. Also, this has nothing to do with the page cache,
right?
next prev parent reply other threads:[~2023-03-06 17:41 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20230307114200eucas1p296a60514feb40c4a08f380cc28aeeb51@eucas1p2.samsung.com>
2023-03-06 12:01 ` [PATCH 0/5] brd: Allow to change block sizes Hannes Reinecke
2023-03-06 12:01 ` [PATCH 1/5] brd: convert to folios Hannes Reinecke
2023-03-06 16:04 ` kernel test robot
2023-03-06 17:37 ` Matthew Wilcox
2023-03-07 6:55 ` Hannes Reinecke
2023-03-07 7:30 ` Matthew Wilcox
2023-03-09 3:28 ` Luis Chamberlain
[not found] ` <a4489f7b-912c-e68f-4a4c-c14d96026bd6@suse.de>
2023-03-21 15:00 ` Matthew Wilcox
2023-03-21 15:26 ` Hannes Reinecke
2023-03-09 2:29 ` Luis Chamberlain
2023-03-06 12:01 ` [PATCH 2/5] brd: abstract page_size conventions Hannes Reinecke
2023-03-06 12:01 ` [PATCH 3/5] brd: make sector size configurable Hannes Reinecke
2023-03-09 3:12 ` Luis Chamberlain
2023-03-20 22:52 ` Luis Chamberlain
2023-03-20 23:40 ` Martin K. Petersen
2023-03-21 0:14 ` Luis Chamberlain
2023-03-06 12:01 ` [PATCH 4/5] brd: limit maximal block size to 32M Hannes Reinecke
2023-03-06 17:40 ` Matthew Wilcox [this message]
2023-03-07 6:56 ` Hannes Reinecke
2023-03-06 18:01 ` Keith Busch
2023-03-07 6:57 ` Hannes Reinecke
2023-03-06 12:01 ` [PATCH 5/5] brd: make logical sector size configurable Hannes Reinecke
2023-03-07 9:01 ` Pankaj Raghav
2023-03-07 11:06 ` Hannes Reinecke
2023-05-17 9:31 ` Pankaj Raghav
2023-03-07 11:33 ` [PATCH 0/5] brd: Allow to change block sizes Pankaj Raghav
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