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posix_fadvise.2: Add "C library/kernel ABI differences" subsection 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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Michael Kerrisk 2015-04-10 09:08:50 +02:00
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man2/posix_fadvise.2
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@ -169,6 +169,13 @@ call
or
.BR fdatasync (2)
first.
.SS C library/kernel ABI differences
The name of the wrapper function in the C library is
.BR posix_fadvise ().
The underlying system call is called
.BR fadvise64 ()
(or, on some architectures,
.BR fadvise64_64 ()).
.SS Architecture-specific variants
Some architectures require
64-bit arguments to be aligned in a suitable pair of registers (see