RE: open(O_DIRECT) on a tmpfs?

[Hugh Dickins]

On Thu, 4 Jan 2007, Hua Zhong wrote:
> 
> So I'd argue that it makes more sense to support O_DIRECT
> on tmpfs as the memory IS the backing store.

A few more voices in favour and I'll be persuaded.  Perhaps I'm
out of date: when O_DIRECT came in, just a few filesystems supported
it, and it was perfectly normal for open O_DIRECT to be failed; but
I wouldn't want tmpfs to stand out now as a lone obstacle.

Christoph, what's your take on this?

Hugh
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