From: Andy Adamson <andros@xxxxxxxxxx> NFSD_SLOT_CACHE_SIZE holds the encoded operations past the SEQUENCE operation. ca_maxresponsesize_cached (draft-ietf-nfsv4-minorversion1-29) is the xdr encoded size of the request including the RPC header. Since the RPC header size varies with security flavor credential and verifier. we cannot set an accurate ca_maxresponsesize_cached. Use NFSD_SLOT_CACHE_SIZE as an approximate ca_maxresponsesize_cached - we will have at least that much space. Signed-off-by: Andy Adamson <andros@xxxxxxxxxx> --- fs/nfsd/nfs4state.c | 11 ++++++++--- 1 files changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 991c3cc..a0bd6da 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -464,9 +464,14 @@ static int init_forechannel_attrs(struct svc_rqst *rqstp, fchan->maxresp_sz = maxcount; session_fchan->maxresp_sz = fchan->maxresp_sz; - /* Set the max response cached size our default which is - * a multiple of PAGE_SIZE and small */ - session_fchan->maxresp_cached = NFSD_PAGES_PER_SLOT * PAGE_SIZE; + /* + * The ca_maxresponssize_cached definition includes the xdr + * encoded size of the rpc header with the variable length security + * flavor credential plus verifier as well as the encoded SEQUENCE + * operation response size which are not included in + * NFSD_SLOT_CACHE_SIZE. We err on the side of being a bit small. + */ + session_fchan->maxresp_cached = NFSD_SLOT_CACHE_SIZE; fchan->maxresp_cached = session_fchan->maxresp_cached; /* Use the client's maxops if possible */ -- 1.5.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
