Messages in this thread | | | Date | Sun, 22 Jan 2006 21:41:11 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH 6/9] device-mapper snapshot: barriers not supported |
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Alasdair G Kergon <agk@redhat.com> wrote: > > The snapshot and origin targets are incapable of handling barriers and > need to indicate this. > > ... > > + if (unlikely(bio_barrier(bio))) > + return -EOPNOTSUPP; > +
And what was happening if people _were_ sending such BIOs down? Did it all appear to work correctly? If so, will this change cause currently-apparently-working setups to stop working? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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