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nfs41: make sure nfs server return right ca_maxresponsesize_cached

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According to rfc5661,

  ca_maxresponsesize_cached:

     Like ca_maxresponsesize, but the maximum size of a reply that
     will be stored in the reply cache (Section 2.10.6.1).  For each
     channel, the server MAY decrease this value, but MUST NOT
     increase it.

the latest kernel(2.6.38-rc8) may increase the value for ignoring
request's ca_maxresponsesize_cached value. We should not ignore it.

Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Mi Jinlong 2011-03-10 17:43:37 +08:00 committed by J. Bruce Fields
parent 0a5e5f122c
commit d2b217439f
1 changed files with 2 additions and 1 deletions
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3
fs/nfsd/nfs4state.c
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@ -608,7 +608,8 @@ static void init_forechannel_attrs(struct nfsd4_channel_attrs *new, struct nfsd4
u32 maxrpc = nfsd_serv->sv_max_mesg;
new->maxreqs = numslots;
new->maxresp_cached = slotsize + NFSD_MIN_HDR_SEQ_SZ;
new->maxresp_cached = min_t(u32, req->maxresp_cached,
slotsize + NFSD_MIN_HDR_SEQ_SZ);
new->maxreq_sz = min_t(u32, req->maxreq_sz, maxrpc);
new->maxresp_sz = min_t(u32, req->maxresp_sz, maxrpc);
new->maxops = min_t(u32, req->maxops, NFSD_MAX_OPS_PER_COMPOUND);