tree c6439c2171f7ea6d54c8e7ca2461fcf8347289de
parent 827433801c3bcf21296915c42c1314fbb944b197
author Kinglong Mee <kinglongmee@gmail.com> 1486132560 +0800
committer J. Bruce Fields <bfields@redhat.com> 1487366763 -0500

NFSD: Get response size before operation for all RPCs

NFSD usess PAGE_SIZE as the reply size estimate for RPCs which don't
support op_rsize_bop(), A PAGE_SIZE (4096) is larger than many real
response sizes, eg, access (op_encode_hdr_size + 2), seek
(op_encode_hdr_size + 3).

This patch just adds op_rsize_bop() for all RPCs getting response size.

An overestimate is generally safe but the tighter estimates are probably
better.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>