diff options
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/nfs4recover.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c index d0fc003d130a..ea95a2bc21b5 100644 --- a/fs/nfsd/nfs4recover.c +++ b/fs/nfsd/nfs4recover.c @@ -1286,6 +1286,22 @@ nfsd4_umh_cltrack_create(struct nfs4_client *clp) char *hexid, *has_session, *grace_start; struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id); + /* + * With v4.0 clients, there's little difference in outcome between a + * create and check operation, and we can end up calling into this + * function multiple times per client (once for each openowner). So, + * for v4.0 clients skip upcalling once the client has been recorded + * on stable storage. + * + * For v4.1+ clients, the outcome of the two operations is different, + * so we must ensure that we upcall for the create operation. v4.1+ + * clients call this on RECLAIM_COMPLETE though, so we should only end + * up doing a single create upcall per client. + */ + if (clp->cl_minorversion == 0 && + test_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags)) + return; + hexid = bin_to_hex_dup(clp->cl_name.data, clp->cl_name.len); if (!hexid) { dprintk("%s: can't allocate memory for upcall!\n", __func__); |