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Fix negative UFFDIO_COPY result handling #91

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Fix negative UFFDIO_COPY result handling #91

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2 changes: 1 addition & 1 deletion src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -163,7 +163,7 @@ impl Uffd {
let _ =
raw::copy(self.as_raw_fd(), &mut copy as *mut raw::uffdio_copy).map_err(|errno| {
match errno {
Errno::EAGAIN => Error::PartiallyCopied(copy.copy as usize),
Errno::EAGAIN if copy.copy > 0 => Error::PartiallyCopied(copy.copy as usize),
_ => Error::CopyFailed(errno),
}
})?;
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