From: "Theodore Y. Ts'o" <tytso@mit.edu>
To: Jan Kara <jack@suse.cz>
Cc: Naoto Kobayashi <naoto.kobayashi4c@gmail.com>,
adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org
Subject: Re: [PATCH v2 2/3] ext4: Rename ext4_kvmalloc() to ext4_kvmalloc_nofs() and drop its flags argument
Date: Thu, 16 Jan 2020 10:12:39 -0500 [thread overview]
Message-ID: <20200116151239.GA253859@mit.edu> (raw)
In-Reply-To: <20200116123724.GD8446@quack2.suse.cz>
On Thu, Jan 16, 2020 at 01:37:24PM +0100, Jan Kara wrote:
>
> Ted, I don't think this patch is needed at all - see my email [1]. Sadly
> Naoto didn't reply to my question whether he really saw any deadlock /
> lockdep splat or whether it was just a theoretical concern he had...
Thanks, good point. So what we should do instead is just drop
ext4_kvmalloc() entirely.
- Ted
next prev parent reply other threads:[~2020-01-16 15:12 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-27 8:05 [PATCH v2 0/3] ext4: Prevent memory reclaim from re-entering the filesystem and deadlocking Naoto Kobayashi
2019-12-27 8:05 ` [PATCH v2 1/3] ext4: Delete ext4_kvzvalloc() Naoto Kobayashi
2020-01-09 9:51 ` Jan Kara
2020-01-13 22:32 ` Theodore Y. Ts'o
2019-12-27 8:05 ` [PATCH v2 2/3] ext4: Rename ext4_kvmalloc() to ext4_kvmalloc_nofs() and drop its flags argument Naoto Kobayashi
2020-01-09 10:00 ` Jan Kara
2020-01-13 22:32 ` Theodore Y. Ts'o
2020-01-16 12:37 ` Jan Kara
2020-01-16 15:12 ` Theodore Y. Ts'o [this message]
2020-01-16 15:50 ` [PATCH] ext4: drop ext4_kvmalloc() Theodore Ts'o
2020-01-17 10:30 ` Jan Kara
2020-01-17 16:36 ` Theodore Y. Ts'o
2019-12-27 8:05 ` [PATCH v2 3/3] ext4: Prevent ext4_kvmalloc_nofs() from re-entering the filesystem and deadlocking Naoto Kobayashi
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=20200116151239.GA253859@mit.edu \
--to=tytso@mit.edu \
--cc=adilger.kernel@dilger.ca \
--cc=jack@suse.cz \
--cc=linux-ext4@vger.kernel.org \
--cc=naoto.kobayashi4c@gmail.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).