Messages in this thread | | | Date | Thu, 16 Oct 2014 15:51:12 -0400 | From | Matthew Wilcox <> | Subject | Re: [PATCH v11 07/21] dax,ext2: Replace XIP read and write with DAX I/O |
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On Thu, Oct 16, 2014 at 11:50:27AM +0200, Mathieu Desnoyers wrote: > > + if (rw == WRITE) { > > + if (!buffer_mapped(bh)) { > > + retval = -EIO; > > + /* FIXME: fall back to buffered I/O */ > > Fallback on buffered I/O would void guarantee about having data stored > into persistent memory after write returns. Not sure we actually want > that.
Yeah, I think that comment is just stale. I can't see a way in which buffered I/O would succeed after DAX I/O falis.
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