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authorJ. Bruce Fields <bfields@redhat.com>2014-03-11 15:39:13 -0400
committerJ. Bruce Fields <bfields@redhat.com>2014-05-30 17:31:57 -0400
commit4f0cefbf389c28b0a2be34960797adb0c84ee43d (patch)
tree8ef1923fa15d4e2372e73e48df203facc4085c7c /fs/nfsd/nfs4proc.c
parent8c7424cff6bd33459945646cfcbf6dc6c899ab24 (diff)
nfsd4: more precise nfsd4_max_reply
It will turn out to be useful to have a more accurate estimate of reply size; so, piggyback on the existing op reply-size estimators. Also move nfsd4_max_reply to nfs4proc.c to get easier access to struct nfsd4_operation and friends. (Thanks to Christoph Hellwig for pointing out that simplification.) Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4proc.c')
-rw-r--r--fs/nfsd/nfs4proc.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 20aad5a3005f..59c319528cf9 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1854,6 +1854,18 @@ static struct nfsd4_operation nfsd4_ops[] = {
},
};
+int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op)
+{
+ struct nfsd4_operation *opdesc;
+ nfsd4op_rsize estimator;
+
+ if (op->opnum == OP_ILLEGAL)
+ return op_encode_hdr_size * sizeof(__be32);
+ opdesc = OPDESC(op);
+ estimator = opdesc->op_rsize_bop;
+ return estimator ? estimator(rqstp, op) : PAGE_SIZE;
+}
+
void warn_on_nonidempotent_op(struct nfsd4_op *op)
{
if (OPDESC(op)->op_flags & OP_MODIFIES_SOMETHING) {