internal/poll: treat copy_file_range EPERM as not-handled
Fixes #40893 Change-Id: I938ea4796c1e1d1e136117fe78b06ad6da8e40de Reviewed-on: https://go-review.googlesource.com/c/go/+/249257 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:Antonio Troina <thoeni@gmail.com> Reviewed-by:
Ian Lance Taylor <iant@golang.org>
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