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Message-ID: <CAGZ=bqJpPOFVbONmRbfww+GYb-9__33wGwbBYN0Gjt+3+w4o5g@mail.gmail.com> Date: Fri, 23 Sep 2011 13:24:48 -0400 From: Kyle Moffett <kyle@...fetthome.net> To: Philipp Reisner <philipp.reisner@...bit.com> Cc: linux-kernel@...r.kernel.org, Jens Axboe <axboe@...nel.dk>, drbd-dev@...ts.linbit.com Subject: Re: [PATCH 10/10] drbd: For protocol versions before 100, use mixed header versions On Fri, Sep 23, 2011 at 10:31, Philipp Reisner <philipp.reisner@...bit.com> wrote: > Previous versions of drbd are using version 80 headers for all packets > short enough for protocol 80. They support both header versions in > worker context, but only version 80 headers in asynchronous context. > For backwards compatibility, continue to use version 80 headers for > short packets before protocol version 100. > > From protocol version 100 on, use the same header version for all > packets. If I understand it correctly, this patch fixes a backwards compat bug in code introduced 2 patches earlier: [PATCH 08/10] drbd: Introduce protocol version 100 headers Therefore this patch (and its commit message) should just be rolled into that one to prevent the bug in the first place. Cheers, Kyle Moffett -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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