From: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
To: Pavel Machek <pavel@ucw.cz>
Cc: Zdenek Kabelac <zdenek.kabelac@gmail.com>,
Christoph Hellwig <hch@lst.de>, "Rafael J. Wysocki" <rjw@sisk.pl>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-mmc@vger.kernel.org, viro@zeniv.linux.org.uk
Subject: Re: Regression in suspend to ram in 2.6.31-rc kernels
Date: Wed, 09 Sep 2009 22:21:56 +0900 [thread overview]
Message-ID: <87ljko5k3v.fsf@devron.myhome.or.jp> (raw)
In-Reply-To: <20090907125130.GA1595@ucw.cz> (Pavel Machek's message of "Mon, 7 Sep 2009 14:51:30 +0200")
Pavel Machek <pavel@ucw.cz> writes:
>> It seems
>>
>> 1) sync() (probabry "sync" command)
>> 2) sync as part of suspend sequence
>> 3) sync_filesystem() by mmc remove event
>>
>> I guess the root-cause of the problem would be 3). However, it would not
>> be easy to fix, at least, we would need to think about what we want to
>> do for it. So, to workaround it for now, I've made this patch.
>
> MMC driver trying to synchronize filesystems looks like ugly layering
> violation to me. Why are we doing that?
There is no _layering violation_ here. IIRC, mmc just tells card removed
event to another layer (on some points of view, to tell event can be
wrong though). The partition (block) layer does it by event.
Thanks.
--
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
next prev parent reply other threads:[~2009-09-09 13:21 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-31 11:51 Regression in suspend to ram in 2.6.31-rc kernels Zdenek Kabelac
2009-08-31 19:19 ` Rafael J. Wysocki
2009-09-01 9:34 ` Zdenek Kabelac
2009-09-03 22:29 ` Zdenek Kabelac
2009-09-03 23:23 ` Christoph Hellwig
2009-09-04 0:47 ` OGAWA Hirofumi
2009-09-04 9:13 ` Zdenek Kabelac
2009-09-05 17:22 ` OGAWA Hirofumi
2009-09-05 19:53 ` Zdenek Kabelac
2009-09-05 22:42 ` OGAWA Hirofumi
2009-09-08 8:10 ` Zdenek Kabelac
2009-09-09 13:15 ` OGAWA Hirofumi
2009-09-07 12:51 ` Pavel Machek
2009-09-09 13:21 ` OGAWA Hirofumi [this message]
2009-09-10 19:23 ` Pavel Machek
2009-09-11 6:39 ` OGAWA Hirofumi
2009-09-11 20:09 ` Pavel Machek
2009-09-11 21:14 ` Zdenek Kabelac
2009-09-11 21:32 ` Pavel Machek
2009-09-11 21:45 ` Zdenek Kabelac
2009-09-11 21:51 ` Pavel Machek
2009-09-11 22:22 ` Rafael J. Wysocki
2009-09-14 20:05 ` Pierre Ossman
2009-09-14 20:25 ` Pavel Machek
2009-09-11 22:29 ` Chris Ball
2009-09-11 22:36 ` Rafael J. Wysocki
2009-09-14 8:39 ` Zdenek Kabelac
2009-09-14 19:17 ` Rafael J. Wysocki
2009-09-14 20:27 ` Pavel Machek
2009-09-18 11:15 ` OGAWA Hirofumi
2009-09-18 21:39 ` Rafael J. Wysocki
2009-09-11 22:22 ` Chris Ball
2009-09-11 22:04 ` Rafael J. Wysocki
2009-09-11 22:21 ` Pavel Machek
2009-09-11 22:32 ` Rafael J. Wysocki
2009-09-08 19:06 ` Christoph Hellwig
2009-09-08 19:48 ` Rafael J. Wysocki
2009-09-09 13:52 ` OGAWA Hirofumi
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=87ljko5k3v.fsf@devron.myhome.or.jp \
--to=hirofumi@mail.parknet.co.jp \
--cc=hch@lst.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
--cc=pavel@ucw.cz \
--cc=rjw@sisk.pl \
--cc=viro@zeniv.linux.org.uk \
--cc=zdenek.kabelac@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