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SubjectRe: [RFC PATCH 00/22] loop: Issue O_DIRECT aio with pages
On Tue, Feb 28, 2012 at 10:14:34AM -0500, Zach Brown wrote:
> Yeah, that's reasonable. Perhaps obviously, we started with new entry
> points to minimize the amount of churn we'd have to go through to test
> the change in behaviour.
>
> It's going to be messy to try and abstract away the pinning and dirtying
> of the iter regions from direct IO through the iter interface, but maybe
> not horribly so.

I don't really care to much about the implementation inside fs/direct-io.c
(at least for now - once I see it I might still scream "bloody
murder!").

The point is to pass the iov_iter all the way down to a common entry
point in fs/direct-io.c, so that the filesystems don't have to care
for that difference.


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