There are 2 typos:
file_in is used instead of fd_in in the ERRORS and NOTES sections.
file_out is used instead of fd_out in the ERRORS section.
Reported-by: Ricardo Castano <ricardo.castano.salinas@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
.TP
.B EXDEV
The files referred to by
-.IR file_in " and " file_out
+.IR fd_in " and " fd_out
are not on the same mounted filesystem (pre Linux 5.3).
.SH VERSIONS
The
system call is a nonstandard Linux and GNU extension.
.SH NOTES
If
-.I file_in
+.I fd_in
is a sparse file, then
.BR copy_file_range ()
may expand any holes existing in the requested range.