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| author | rmacklem <rmacklem@FreeBSD.org> | 2016-11-03 00:58:50 +0000 |
|---|---|---|
| committer | rmacklem <rmacklem@FreeBSD.org> | 2016-11-03 00:58:50 +0000 |
| commit | a80773c87e22a39030ea8f96675519d7ff17fb85 (patch) | |
| tree | df2ab6fdc8c284f9887c87ba443f6eb67e319683 /sys/dev/isci/isci_task_request.c | |
| parent | 505d3da8cb6db6f329f3887ea559b5bb24d0a085 (diff) | |
| download | FreeBSD-src-a80773c87e22a39030ea8f96675519d7ff17fb85.zip FreeBSD-src-a80773c87e22a39030ea8f96675519d7ff17fb85.tar.gz | |
MFC: r307694
A problem w.r.t. interoperation between the FreeBSD NFSv4.1 server with
delegations enabled and the Linux NFSv4.1 client was reported in
reviews.freebsd.org/D7891.
I believe that the FreeBSD server behaviour conforms to the RFC and that
the Linux client has a bug. Therefore, I do not think the proposed patch
is appropriate. When nfsrv_writedelegifpos is non-zero, the FreeBSD
server will issue a write delegation for a read open if possible.
The Linux client then erroneously assumes that the credentials used for
the read open can write the file.
This patch reverses the default value for nfsrv_writedelegifpos to 0 so
that the default behaviour is Linux compatible and adds a sysctl that can
be used to set nfsrv_writedelegifpos.
This change should only affect users that are mounting a FreeBSD server
with delegations enabled (they are not enabled by default) with a Linux
NFSv4.1 client mount.
Diffstat (limited to 'sys/dev/isci/isci_task_request.c')
0 files changed, 0 insertions, 0 deletions
