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SubjectRe: WARNING in iov_iter_revert (2)
On Sat, Feb 20, 2021 at 07:29:57PM +0000, Al Viro wrote:

> And then you notice that it has reports
> successful write of amount other than what you'd passed and tries
> to pull back.

Sorry, half-edited sentence has escaped ;-/ Should be

"And there the caller notices that callback has reported a successful
write, but the amount apparently written is not the same as the
amount it had asked to write. It interprets that as a short write
and tries to pull back. Only it's actually _forward_, since we'd
asked to write 0 bytes and got a small positive number from the

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