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authorAndy Adamson <andros@netapp.com>2009-04-03 01:27:32 -0400
committerJ. Bruce Fields <bfields@citi.umich.edu>2009-04-03 20:41:12 -0400
commit2f425878b6a71571341dcd3f9e9d1a6f6355da9c (patch)
tree52735958c1614458bd6b459040f977dfc3c3e9a9 /net/sunrpc/svc_xprt.c
parent20766016329eb4985c2c8b2a1b2333e0f865fdf9 (diff)
nfsd: don't use the deferral service, return NFS4ERR_DELAY
On an NFSv4.1 server cache miss that causes an upcall, NFS4ERR_DELAY will be returned. It is up to the NFSv4.1 client to resend only the operations that have not been processed. Initialize rq_usedeferral to 1 in svc_process(). It sill be turned off in nfsd4_proc_compound() only when NFSv4.1 Sessions are used. Note: this isn't an adequate solution on its own. It's acceptable as a way to get some minimal 4.1 up and working, but we're going to have to find a way to avoid returning DELAY in all common cases before 4.1 can really be considered ready. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfsd41: reverse rq_nodeferral negative logic] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [sunrpc: initialize rq_usedeferral] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'net/sunrpc/svc_xprt.c')
-rw-r--r--net/sunrpc/svc_xprt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index 1e66f249146..600d0918e3a 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -974,7 +974,7 @@ static struct cache_deferred_req *svc_defer(struct cache_req *req)
974 struct svc_rqst *rqstp = container_of(req, struct svc_rqst, rq_chandle); 974 struct svc_rqst *rqstp = container_of(req, struct svc_rqst, rq_chandle);
975 struct svc_deferred_req *dr; 975 struct svc_deferred_req *dr;
976 976
977 if (rqstp->rq_arg.page_len) 977 if (rqstp->rq_arg.page_len || !rqstp->rq_usedeferral)
978 return NULL; /* if more than a page, give up FIXME */ 978 return NULL; /* if more than a page, give up FIXME */
979 if (rqstp->rq_deferred) { 979 if (rqstp->rq_deferred) {
980 dr = rqstp->rq_deferred; 980 dr = rqstp->rq_deferred;