From: Rob Barnes <robbarnes@google.com>
To: "Bill O'Donnell" <billodo@redhat.com>
Cc: bleung@chromium.org, linux-fsdevel@vger.kernel.org,
Alexander Viro <viro@zeniv.linux.org.uk>,
Christian Brauner <brauner@kernel.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] fs: export emergency_sync
Date: Tue, 18 Jul 2023 16:18:47 -0600 [thread overview]
Message-ID: <CA+Dqm32sTcJoh-8LmtegWdihWGJWQdwCUDhmrLhru866uwQzyQ@mail.gmail.com> (raw)
In-Reply-To: <ZLcOcr6N+Ty59rBD@redhat.com>
My use case is when the EC panics. A hard reset is imminent. In my
testing a regular sync did not always sync all of the logs. See
https://lore.kernel.org/all/20230717232932.1.I361812b405bd07772f66660624188339ab158772@changeid
On Tue, Jul 18, 2023 at 4:13 PM Bill O'Donnell <billodo@redhat.com> wrote:
>
> On Tue, Jul 18, 2023 at 09:45:40PM +0000, Rob Barnes wrote:
> > emergency_sync forces a filesystem sync in emergency situations.
> > Export this function so it can be used by modules.
> >
> > Signed-off-by: Rob Barnes <robbarnes@google.com>
>
> Example of an emergency situation?
> Thanks-
> Bill
>
>
> > ---
> >
> > fs/sync.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/fs/sync.c b/fs/sync.c
> > index dc725914e1edb..b313db0ebb5ee 100644
> > --- a/fs/sync.c
> > +++ b/fs/sync.c
> > @@ -142,6 +142,7 @@ void emergency_sync(void)
> > schedule_work(work);
> > }
> > }
> > +EXPORT_SYMBOL(emergency_sync);
> >
> > /*
> > * sync a single super
> > --
> > 2.41.0.255.g8b1d071c50-goog
> >
>
next prev parent reply other threads:[~2023-07-18 22:19 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-18 21:45 [PATCH] fs: export emergency_sync Rob Barnes
2023-07-18 22:13 ` Bill O'Donnell
2023-07-18 22:18 ` Rob Barnes [this message]
2023-07-19 4:08 ` Guenter Roeck
2023-07-19 5:53 ` Christian Brauner
2023-07-19 6:31 ` Christoph Hellwig
2023-07-19 20:51 ` Dmitry Torokhov
2023-07-31 7:23 ` Christoph Hellwig
2023-07-19 13:21 ` Guenter Roeck
2023-07-31 19:18 ` Christian Brauner
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