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to allow just pread(). If we later decide that there is some way that
the semantics using read() + lseek() could be sensible (which seems
unlikely), we could relax things and allow read().

[...]

> Oleg, thank you for the comments. I'm waiting an answer on the
> question and after that I'm going to send a final version.

It would be nice if the new patch series has a changelog of the
changes to date, and also includes a fairly detailed description of
the user-space API. Would that be possible?

Thanks,

Michael


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface"; http://man7.org/tlpi/