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Subject: Re: [PATCH v2] PM: Add a switch for disabling/enabling sync() before
 suspend
From:   Jonas Meurer <jonas@freesources.org>
To:     "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc:     linux-kernel@vger.kernel.org, Linux PM <linux-pm@vger.kernel.org>,
        Pavel Machek <pavel@ucw.cz>, Len Brown <len.brown@intel.com>,
        Tim Dittler <tim.dittler@systemli.org>,
        Yannik Sembritzki <yannik@sembritzki.me>
References: <d34ad8b1-8c0a-99d9-dc3e-319600c0bc39@freesources.org>
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Message-ID: <1c12532c-66dd-cb89-d88e-b4c220099db9@freesources.org>
Date:   Fri, 10 Jan 2020 11:52:03 +0100
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In-Reply-To: <d34ad8b1-8c0a-99d9-dc3e-319600c0bc39@freesources.org>
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Content-Type: multipart/mixed; boundary="KM3opbecu0XD0lJFG7slohF15w66ssO5C";
 protected-headers="v1"
From: Jonas Meurer <jonas@freesources.org>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: linux-kernel@vger.kernel.org, Linux PM <linux-pm@vger.kernel.org>,
 Pavel Machek <pavel@ucw.cz>, Len Brown <len.brown@intel.com>,
 Tim Dittler <tim.dittler@systemli.org>,
 Yannik Sembritzki <yannik@sembritzki.me>
Message-ID: <1c12532c-66dd-cb89-d88e-b4c220099db9@freesources.org>
Subject: Re: [PATCH v2] PM: Add a switch for disabling/enabling sync() before
 suspend
References: <d34ad8b1-8c0a-99d9-dc3e-319600c0bc39@freesources.org>
In-Reply-To: <d34ad8b1-8c0a-99d9-dc3e-319600c0bc39@freesources.org>

--KM3opbecu0XD0lJFG7slohF15w66ssO5C
Content-Type: text/plain; charset=utf-8
Content-Language: de-DE
Content-Transfer-Encoding: quoted-printable

Hey Rafael,

Jonas Meurer:
> The switch allows to enable or disable the final sync() from the suspen=
d.c
> Linux Kernel system suspend implementation. This is useful to avoid rac=
e
> conditions if block devices have been suspended before. Be aware that y=
ou
> have to take care of sync() yourself before suspending the system if yo=
u
> disable it here.
>=20
> Congruously, the behaviour of build-time switch CONFIG_SUSPEND_SKIP_SYN=
C
> is slightly changed: It now configures the default for fun-time switch
> '/sys/power/sync_on_suspend'.
>=20
> Signed-off-by: Jonas Meurer <jonas@freesources.org>

Sorry to poke you again :)

Did you find time to further look into the patch yet?

Cheers
 jonas


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