From: Bart Van Assche <Bart.VanAssche@wdc.com>
To: "boris.ostrovsky@oracle.com" <boris.ostrovsky@oracle.com>,
"ONeukum@suse.com" <ONeukum@suse.com>,
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Subject: Re: [RFC 4/5] ext4: add fs freezing support on suspend/hibernation
Date: Wed, 4 Oct 2017 15:25:07 +0000 [thread overview]
Message-ID: <1507130705.3583.14.camel@wdc.com> (raw)
In-Reply-To: <20171004070523.GE3666@dastard>
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c2VkIG9uIEZVU0U/DQoNClRoYW5rcywNCg0KQmFydC4=
WARNING: multiple messages have this Message-ID (diff)
From: Bart Van Assche <Bart.VanAssche@wdc.com>
To: "boris.ostrovsky@oracle.com" <boris.ostrovsky@oracle.com>,
"ONeukum@suse.com" <ONeukum@suse.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"nborisov@suse.com" <nborisov@suse.com>,
"oleg.b.antonyan@gmail.com" <oleg.b.antonyan@gmail.com>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>,
"pavel@ucw.cz" <pavel@ucw.cz>,
"darrick.wong@oracle.com" <darrick.wong@oracle.com>,
"viro@zeniv.linux.org.uk" <viro@zeniv.linux.org.uk>,
"ming.lei@redhat.com" <ming.lei@redhat.com>,
"rjw@rjwysocki.net" <rjw@rjwysocki.net>,
"jgross@suse.com" <jgross@suse.com>,
"oleksandr@natalenko.name" <oleksandr@natalenko.name>,
"todd.e.brandt@linux.intel.com" <todd.e.brandt@linux.intel.com>,
"martin.petersen@oracle.com" <martin.petersen@oracle.com>,
"mcgrof@kernel.org" <mcgrof@kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"jikos@kernel.org" <jikos@kernel.org>,
"len.brown@intel.com" <len.brown@intel.com>,
"tytso@mit.edu" <tytso@mit.edu>,
"david@fromorbit.com" <david@fromorbit.com>,
"jack@suse.cz" <jack@suse.cz>
Subject: Re: [RFC 4/5] ext4: add fs freezing support on suspend/hibernation
Date: Wed, 4 Oct 2017 15:25:07 +0000 [thread overview]
Message-ID: <1507130705.3583.14.camel@wdc.com> (raw)
In-Reply-To: <20171004070523.GE3666@dastard>
On Wed, 2017-10-04 at 18:05 +1100, Dave Chinner wrote:
> Basically, before thawing filesystems the rest of the kernel
> infrastructure needs to have been restarted. i.e. the order
> needs to be:
>
> freeze userspace
> freeze filesystems
> freeze kernel threads
> freeze workqueues
>
> thaw workqueues
> thaw kernel threads
> thaw filesystems
> thaw userspace
>
> and it should end up that way.
Does this order support filesystems that have been implemented in user space,
e.g. filesystems based on FUSE?
Thanks,
Bart.
WARNING: multiple messages have this Message-ID (diff)
From: Bart Van Assche <Bart.VanAssche@wdc.com>
To: "boris.ostrovsky@oracle.com" <boris.ostrovsky@oracle.com>,
"ONeukum@suse.com" <ONeukum@suse.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"nborisov@suse.com" <nborisov@suse.com>,
"oleg.b.antonyan@gmail.com" <oleg.b.antonyan@gmail.com>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>,
"pavel@ucw.cz" <pavel@ucw.cz>,
"darrick.wong@oracle.com" <darrick.wong@oracle.com>,
"viro@zeniv.linux.org.uk" <viro@zeniv.linux.org.uk>,
"ming.lei@redhat.com" <ming.lei@redhat.com>,
"rjw@rjwysocki.net" <rjw@rjwysocki.net>,
"jgross@suse.com" <jgross@suse.com>,
"oleksandr@natalenko.name" <oleksandr@natalenko.name>,
todd.e.brandt@linux.intel.co
Subject: Re: [RFC 4/5] ext4: add fs freezing support on suspend/hibernation
Date: Wed, 4 Oct 2017 15:25:07 +0000 [thread overview]
Message-ID: <1507130705.3583.14.camel@wdc.com> (raw)
In-Reply-To: <20171004070523.GE3666@dastard>
On Wed, 2017-10-04 at 18:05 +1100, Dave Chinner wrote:
> Basically, before thawing filesystems the rest of the kernel
> infrastructure needs to have been restarted. i.e. the order
> needs to be:
>
> freeze userspace
> freeze filesystems
> freeze kernel threads
> freeze workqueues
>
> thaw workqueues
> thaw kernel threads
> thaw filesystems
> thaw userspace
>
> and it should end up that way.
Does this order support filesystems that have been implemented in user space,
e.g. filesystems based on FUSE?
Thanks,
Bart.
next prev parent reply other threads:[~2017-10-04 15:25 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-03 18:53 [RFC 0/5] fs: replace kthread freezing with filesystem freeze/thaw Luis R. Rodriguez
2017-10-03 18:53 ` [RFC 1/5] fs: add iterate_supers_reverse() Luis R. Rodriguez
2017-10-03 18:53 ` [RFC 2/5] fs: freeze on suspend and thaw on resume Luis R. Rodriguez
2017-10-03 20:02 ` Bart Van Assche
2017-10-03 20:02 ` Bart Van Assche
2017-10-03 20:23 ` Luis R. Rodriguez
2017-10-03 20:23 ` Luis R. Rodriguez
2017-10-03 20:32 ` Bart Van Assche
2017-10-03 20:32 ` Bart Van Assche
2017-10-03 20:32 ` Bart Van Assche
2017-10-03 20:32 ` Bart Van Assche
2017-10-03 20:39 ` Luis R. Rodriguez
2017-10-03 20:39 ` Luis R. Rodriguez
2017-10-03 20:06 ` Jiri Kosina
2017-10-03 20:58 ` Dave Chinner
2017-10-03 21:16 ` Luis R. Rodriguez
2017-10-03 18:53 ` [RFC 3/5] xfs: allow fs freeze on suspend/hibernation Luis R. Rodriguez
2017-10-03 18:53 ` [RFC 4/5] ext4: add fs freezing support " Luis R. Rodriguez
2017-10-03 19:59 ` Theodore Ts'o
2017-10-03 20:13 ` Luis R. Rodriguez
2017-10-04 1:42 ` Theodore Ts'o
2017-10-04 7:05 ` Dave Chinner
2017-10-04 15:25 ` Bart Van Assche
2017-10-04 15:25 ` Bart Van Assche [this message]
2017-10-04 15:25 ` Bart Van Assche
2017-10-04 15:25 ` Bart Van Assche
2017-10-04 16:48 ` Theodore Ts'o
2017-10-04 22:22 ` Dave Chinner
2017-10-03 18:53 ` [RFC 5/5] pm: remove kernel thread freezing Luis R. Rodriguez
2017-10-03 18:59 ` Rafael J. Wysocki
2017-10-03 21:15 ` Rafael J. Wysocki
2017-10-04 0:47 ` Luis R. Rodriguez
2017-10-04 1:03 ` Bart Van Assche
2017-10-04 1:03 ` Bart Van Assche
2017-10-04 1:03 ` Bart Van Assche
2017-11-29 23:05 ` Luis R. Rodriguez
2017-11-29 23:05 ` Luis R. Rodriguez
2017-10-04 7:18 ` Dave Chinner
2017-10-03 20:12 ` Pavel Machek
2017-10-03 20:15 ` Jiri Kosina
2017-10-03 20:21 ` Pavel Machek
2017-10-03 20:38 ` Jiri Kosina
2017-10-03 20:41 ` Rafael J. Wysocki
2017-10-03 20:57 ` Pavel Machek
2017-10-03 21:00 ` Jiri Kosina
2017-10-03 21:09 ` Shuah Khan
2017-10-03 21:18 ` Luis R. Rodriguez
2017-10-03 20:49 ` Luis R. Rodriguez
2017-10-06 12:07 ` Pavel Machek
2017-10-06 12:54 ` Theodore Ts'o
2017-10-03 20:13 ` Bart Van Assche
2017-10-03 20:13 ` Bart Van Assche
2017-10-03 20:17 ` Jiri Kosina
2017-10-03 20:17 ` Jiri Kosina
2017-10-03 20:21 ` Bart Van Assche
2017-10-03 20:21 ` Bart Van Assche
2017-10-03 20:21 ` Bart Van Assche
2017-10-03 20:24 ` Jiri Kosina
2017-10-03 20:24 ` Jiri Kosina
2017-10-03 20:27 ` Luis R. Rodriguez
2017-10-03 20:27 ` Luis R. Rodriguez
2017-10-03 20:51 ` Jiri Kosina
2017-10-03 20:51 ` Jiri Kosina
2017-10-03 21:04 ` Dave Chinner
2017-10-03 21:07 ` Luis R. Rodriguez
2017-10-04 6:07 ` Hannes Reinecke
2017-10-03 19:33 ` [RFC 0/5] fs: replace kthread freezing with filesystem freeze/thaw Ming Lei
2017-10-03 20:05 ` Luis R. Rodriguez
2017-10-03 20:47 ` Matthew Wilcox
2017-10-03 20:54 ` Luis R. Rodriguez
2017-10-03 20:59 ` Bart Van Assche
2017-10-03 20:59 ` Bart Van Assche
2017-10-03 20:59 ` Bart Van Assche
2017-10-04 15:43 ` Ming Lei
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