Re: [dm-devel] Re: [RFD] BIO_RW_BARRIER - what it means for devices, filesystems, and dm/md.

From: Alasdair G Kergon
Date: Wed May 30 2007 - 20:58:50 EST


On Thu, May 31, 2007 at 10:46:04AM +1000, Neil Brown wrote:
> What if the truth changes (as can happen with md or dm)?

You get notified in endio() that the barrier had to be emulated?

Alasdair
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