From: Amir Goldstein <amir73il@gmail.com>
To: Hyunchul Lee <hyc.lee@gmail.com>
Cc: Richard Weinberger <richard@nod.at>,
Artem Bityutskiy <dedekind1@gmail.com>,
Adrian Hunter <adrian.hunter@intel.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
kernel-team@lge.com, linux-mtd@lists.infradead.org,
linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: [PATCH] ubifs: Add freeze support
Date: Mon, 29 May 2017 08:40:11 +0300 [thread overview]
Message-ID: <CAOQ4uxgdTnDY2Vpo0S+oyZkFN37GX-G=om3qATwtC1WF1g_NDw@mail.gmail.com> (raw)
In-Reply-To: <20170529044059.GA12991@sebu>
On Mon, May 29, 2017 at 7:40 AM, Hyunchul Lee <hyc.lee@gmail.com> wrote:
>
> and I missed the following case.
>
> in some embedded systems, clean-up for shutdown should be fast.
> during this clean-up, freeze file system to guarantee integrity.
> umount with MNT_DETACH is not suitable because of not killing tasks.
>
Interesting point. It seems that good old "sync; reboot" does not cut
it anymore.
Not even emergency remount read-only sysrq trigger.
Some of you may have been following this thread on fsdevel:
https://www.spinics.net/lists/linux-xfs/msg06953.html
Probably less have been following this longer thread on xfs list:
https://www.spinics.net/lists/linux-xfs/msg06883.html
next prev parent reply other threads:[~2017-05-29 5:40 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-25 23:30 [PATCH] ubifs: Add freeze support Hyunchul Lee
2017-05-26 9:52 ` Richard Weinberger
2017-05-27 8:18 ` Christoph Hellwig
2017-05-29 1:18 ` Hyunchul Lee
2017-05-29 4:40 ` Hyunchul Lee
2017-05-29 5:40 ` Amir Goldstein [this message]
2017-05-29 9:00 ` Richard Weinberger
2017-05-29 10:04 ` Amir Goldstein
2017-05-29 10:17 ` Richard Weinberger
2017-05-29 11:44 ` Amir Goldstein
2017-05-27 8:23 ` Christoph Hellwig
2017-05-29 0:43 ` Hyunchul Lee
2017-05-29 2:24 ` Hyunchul Lee
2017-05-29 8:42 ` Richard Weinberger
2017-05-30 2:37 ` Hyunchul Lee
2017-05-30 7:51 ` Richard Weinberger
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