All of lore.kernel.org
 help / color / mirror / Atom feed
From: "yukuai (C)" <yukuai3@huawei.com>
To: Gao Xiang <gaoxiang25@huawei.com>
Cc: Matthew Wilcox <willy@infradead.org>, <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 11:15:18 +0800	[thread overview]
Message-ID: <b5ac76bd-567f-2a39-3be1-04e0ed136278@huawei.com> (raw)
In-Reply-To: <20200119030123.GA223124@architecture4>



On 2020/1/19 11:01, Gao Xiang wrote:
> IMO, if use_list == true, it will call read_pages -> .readpages
> and go just like the current implementation.

The problem is that in the current implementatin, iomap_next_page()
add page to page cache and it is replaced with readahead_page()

Thanks!
Yu Kuai


  reply	other threads:[~2020-01-19  3:15 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)
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) [this message]
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=b5ac76bd-567f-2a39-3be1-04e0ed136278@huawei.com \
    --to=yukuai3@huawei.com \
    --cc=darrick.wong@oracle.com \
    --cc=gaoxiang25@huawei.com \
    --cc=hch@infradead.org \
    --cc=houtao1@huawei.com \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-xfs@vger.kernel.org \
    --cc=willy@infradead.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.