From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:45811 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751115AbdJCUMH (ORCPT ); Tue, 3 Oct 2017 16:12:07 -0400 Date: Tue, 3 Oct 2017 22:12:04 +0200 From: Pavel Machek Subject: Re: [RFC 5/5] pm: remove kernel thread freezing Message-ID: <20171003201204.GA23521@amd> References: <20171003185313.1017-1-mcgrof@kernel.org> <20171003185313.1017-6-mcgrof@kernel.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="AqsLC8rIMeq19msA" Content-Disposition: inline In-Reply-To: <20171003185313.1017-6-mcgrof@kernel.org> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: "Luis R. Rodriguez" Cc: viro@zeniv.linux.org.uk, bart.vanassche@wdc.com, ming.lei@redhat.com, tytso@mit.edu, darrick.wong@oracle.com, jikos@kernel.org, rjw@rjwysocki.net, len.brown@intel.com, linux-fsdevel@vger.kernel.org, boris.ostrovsky@oracle.com, jgross@suse.com, todd.e.brandt@linux.intel.com, nborisov@suse.com, jack@suse.cz, martin.petersen@oracle.com, ONeukum@suse.com, oleksandr@natalenko.name, oleg.b.antonyan@gmail.com, linux-pm@vger.kernel.org, linux-block@vger.kernel.org, linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org --AqsLC8rIMeq19msA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue 2017-10-03 11:53:13, Luis R. Rodriguez wrote: > Now that all filesystems which used to rely on kthread > freezing have been converted to filesystem freeze/thawing > we can remove the kernel kthread freezer. Are you surely-sure? You mentioned other in kernel sources of writes; what about those? Can knfsd be a problem? Can memory management doing background writes be a problem? Did you do some hibernation testing? > Signed-off-by: Luis R. Rodriguez Please don't apply this just yet. Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --AqsLC8rIMeq19msA Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlnT7xQACgkQMOfwapXb+vK4qgCcDxGX3eUe+PcZPHNiVxFML35E slcAoJNxB4zJFlTZarJuhrPcwJiZQFAx =eLRH -----END PGP SIGNATURE----- --AqsLC8rIMeq19msA--