From: "yukuai (C)" <yukuai3@huawei.com>
To: Jan Kara <jack@suse.cz>
Cc: <hch@infradead.org>, <darrick.wong@oracle.com>,
<linux-xfs@vger.kernel.org>, <linux-fsdevel@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <houtao1@huawei.com>,
<zhengbin13@huawei.com>, <yi.zhang@huawei.com>
Subject: Re: [RFC] iomap: fix race between readahead and direct write
Date: Sun, 19 Jan 2020 09:17:00 +0800 [thread overview]
Message-ID: <976d09e1-e3b5-a6a6-d159-9bdac3a7dc84@huawei.com> (raw)
In-Reply-To: <20200117110536.GE17141@quack2.suse.cz>
On 2020/1/17 19:05, Jan Kara wrote:
> provide
> allocation for each page separately
Thank you for your response!
I do understand there will be additional CPU overhead. But page is
allocated in __do_page_cache_readahead(), which is called before
iomap_begin(). And I did not change that.
Thanks!
Yu Kuai
next prev parent reply other threads:[~2020-01-19 1:17 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-16 6:36 [RFC] iomap: fix race between readahead and direct write yu kuai
2020-01-16 15:32 ` Jan Kara
2020-01-17 9:39 ` yukuai (C)
2020-01-17 11:05 ` Jan Kara
2020-01-17 16:24 ` Darrick J. Wong
2020-01-19 1:25 ` yukuai (C)
2020-01-19 1:17 ` yukuai (C) [this message]
2020-01-20 11:42 ` Jan Kara
2020-01-18 23:08 ` Matthew Wilcox
2020-01-19 1:34 ` yukuai (C)
2020-01-19 1:42 ` Matthew Wilcox
2020-01-19 1:57 ` yukuai (C)
2020-01-19 2:51 ` yukuai (C)
2020-01-19 3:01 ` Gao Xiang
2020-01-19 3:15 ` yukuai (C)
2020-01-19 6:14 ` Matthew Wilcox
2020-01-19 6:55 ` yukuai (C)
2020-01-19 7:58 ` Matthew Wilcox
2020-01-19 11:21 ` yukuai (C)
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=976d09e1-e3b5-a6a6-d159-9bdac3a7dc84@huawei.com \
--to=yukuai3@huawei.com \
--cc=darrick.wong@oracle.com \
--cc=hch@infradead.org \
--cc=houtao1@huawei.com \
--cc=jack@suse.cz \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-xfs@vger.kernel.org \
--cc=yi.zhang@huawei.com \
--cc=zhengbin13@huawei.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.