From: Christoph Hellwig <hch@lst.de>
To: Bart Van Assche <bvanassche@acm.org>
Cc: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
"Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
Xuan Zhuo <xuanzhuo@linux.alibaba.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Damien Le Moal <dlemoal@kernel.org>,
Keith Busch <kbusch@kernel.org>, Sagi Grimberg <sagi@grimberg.me>,
linux-block@vger.kernel.org, linux-nvme@lists.infradead.org,
virtualization@lists.linux.dev, Hannes Reinecke <hare@suse.de>
Subject: Re: [PATCH 02/14] block: refactor disk_update_readahead
Date: Mon, 29 Jan 2024 07:16:26 +0100 [thread overview]
Message-ID: <20240129061626.GB19581@lst.de> (raw)
In-Reply-To: <df263948-07e0-4aab-a645-ea401d4d413b@acm.org>
On Sun, Jan 28, 2024 at 06:59:31PM -0800, Bart Van Assche wrote:
>> + /*
>> + * For read-ahead of large files to be effective, we need to read ahead
>> + * at least twice the optimal I/O size.
>> + */
>> + bdi->ra_pages = max(lim->io_opt * 2 / PAGE_SIZE, VM_READAHEAD_PAGES);
>> + bdi->io_pages = lim->max_sectors >> (PAGE_SHIFT - 9);
>> +}
>
> Would this be a good opportunity to change (PAGE_SHIFT - 9) into
> PAGE_SECTORS_SHIFT?
If I have to respin for some reason I'll include it. Otherwise feel
free to send a trivial follow on patch.
next prev parent reply other threads:[~2024-01-29 6:16 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-28 16:57 atomic queue limits updates v2 Christoph Hellwig
2024-01-28 16:58 ` [PATCH 01/14] block: move max_{open,active}_zones to struct queue_limits Christoph Hellwig
2024-01-28 23:32 ` Bart Van Assche
2024-01-29 6:15 ` Christoph Hellwig
2024-01-28 16:58 ` [PATCH 02/14] block: refactor disk_update_readahead Christoph Hellwig
2024-01-29 2:59 ` Bart Van Assche
2024-01-29 6:16 ` Christoph Hellwig [this message]
2024-01-28 16:58 ` [PATCH 03/14] block: add an API to atomically update queue limits Christoph Hellwig
2024-01-29 6:11 ` Hannes Reinecke
2024-01-30 11:46 ` John Garry
2024-01-30 14:41 ` Christoph Hellwig
2024-01-30 15:05 ` John Garry
2024-01-28 16:58 ` [PATCH 04/14] block: use queue_limits_commit_update in queue_max_sectors_store Christoph Hellwig
2024-01-30 12:14 ` John Garry
2024-01-30 14:43 ` Christoph Hellwig
2024-01-28 16:58 ` [PATCH 05/14] block: add a max_user_discard_sectors queue limit Christoph Hellwig
2024-01-29 6:13 ` Hannes Reinecke
2024-01-28 16:58 ` [PATCH 06/14] block: use queue_limits_commit_update in queue_discard_max_store Christoph Hellwig
2024-01-28 16:58 ` [PATCH 07/14] block: pass a queue_limits argument to blk_alloc_queue Christoph Hellwig
2024-01-30 12:48 ` John Garry
2024-01-28 16:58 ` [PATCH 08/14] block: pass a queue_limits argument to blk_mq_init_queue Christoph Hellwig
2024-01-30 12:38 ` John Garry
2024-01-28 16:58 ` [PATCH 09/14] block: pass a queue_limits argument to blk_mq_alloc_disk Christoph Hellwig
2024-01-30 12:52 ` John Garry
2024-01-28 16:58 ` [PATCH 10/14] virtio_blk: split virtblk_probe Christoph Hellwig
2024-01-28 16:58 ` [PATCH 11/14] virtio_blk: pass queue_limits to blk_mq_alloc_disk Christoph Hellwig
2024-01-28 16:58 ` [PATCH 12/14] loop: cleanup loop_config_discard Christoph Hellwig
2024-01-28 16:58 ` [PATCH 13/14] loop: pass queue_limits to blk_mq_alloc_disk Christoph Hellwig
2024-01-28 16:58 ` [PATCH 14/14] loop: use the atomic queue limits update API Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2024-01-31 13:03 atomic queue limits updates v3 Christoph Hellwig
2024-01-31 13:03 ` [PATCH 02/14] block: refactor disk_update_readahead Christoph Hellwig
2024-01-31 23:11 ` Chaitanya Kulkarni
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240129061626.GB19581@lst.de \
--to=hch@lst.de \
--cc=axboe@kernel.dk \
--cc=bvanassche@acm.org \
--cc=dlemoal@kernel.org \
--cc=hare@suse.de \
--cc=jasowang@redhat.com \
--cc=kbusch@kernel.org \
--cc=linux-block@vger.kernel.org \
--cc=linux-nvme@lists.infradead.org \
--cc=martin.petersen@oracle.com \
--cc=mst@redhat.com \
--cc=pbonzini@redhat.com \
--cc=sagi@grimberg.me \
--cc=stefanha@redhat.com \
--cc=virtualization@lists.linux.dev \
--cc=xuanzhuo@linux.alibaba.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).