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authorNeilBrown <neilb@suse.de>2010-08-12 17:04:07 +1000
committerJ. Bruce Fields <bfields@redhat.com>2010-09-21 17:02:27 -0400
commit8ff30fa4eff2ff9e207961c654caa093f0c84873 (patch)
treeb25fcb36bf2b276566a69b031b2baea8e216725a /fs
parent1ebede86b8abbcf8833830e18e05391758cf2f28 (diff)
nfsd: disable deferral for NFSv4
Now that a slight delay in getting a reply to an upcall doesn't require deferring of requests, request deferral for all NFSv4 requests - the concept doesn't really fit with the v4 model. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfsd/nfs4proc.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 59ec449b0c7..0cdfd022bb7 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1031,8 +1031,11 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
resp->cstate.session = NULL;
fh_init(&resp->cstate.current_fh, NFS4_FHSIZE);
fh_init(&resp->cstate.save_fh, NFS4_FHSIZE);
- /* Use the deferral mechanism only for NFSv4.0 compounds */
- rqstp->rq_usedeferral = (args->minorversion == 0);
+ /*
+ * Don't use the deferral mechanism for NFSv4; compounds make it
+ * too hard to avoid non-idempotency problems.
+ */
+ rqstp->rq_usedeferral = 0;
/*
* According to RFC3010, this takes precedence over all other errors.