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authorJ. Bruce Fields <bfields@redhat.com>2014-08-21 23:04:31 +0400
committerJ. Bruce Fields <bfields@redhat.com>2014-10-21 17:10:50 +0400
commitd1d84c9626bb3a519863b3ffc40d347166f9fb83 (patch)
tree571a9c4c92e3e5ca1ffd8e12d888ea991928fcd1
parentf114040e3ea6e07372334ade75d1ee0775c355e1 (diff)
downloadlinux-d1d84c9626bb3a519863b3ffc40d347166f9fb83.tar.xz
nfsd4: fix response size estimation for OP_SEQUENCE
We added this new estimator function but forgot to hook it up. The effect is that NFSv4.1 (and greater) won't do zero-copy reads. The estimate was also wrong by 8 bytes. Fixes: ccae70a9ee41 "nfsd4: estimate sequence response size" Cc: stable@vger.kernel.org Reported-by: Chuck Lever <chucklever@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
-rw-r--r--fs/nfsd/nfs4proc.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index cdeb3cfd6f32..f4bd578bed55 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1589,7 +1589,8 @@ static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op
static inline u32 nfsd4_sequence_rsize(struct svc_rqst *rqstp,
struct nfsd4_op *op)
{
- return NFS4_MAX_SESSIONID_LEN + 20;
+ return (op_encode_hdr_size
+ + XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) * sizeof(__be32);
}
static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
@@ -1893,6 +1894,7 @@ static struct nfsd4_operation nfsd4_ops[] = {
.op_func = (nfsd4op_func)nfsd4_sequence,
.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
.op_name = "OP_SEQUENCE",
+ .op_rsize_bop = (nfsd4op_rsize)nfsd4_sequence_rsize,
},
[OP_DESTROY_CLIENTID] = {
.op_func = (nfsd4op_func)nfsd4_destroy_clientid,