From: Kinglong Mee Date: Tue, 2 Jun 2015 10:59:01 +0000 (+0800) Subject: nfs: Initialize cb_sequenceres information before validate_seqid() X-Git-Tag: firefly_0821_release~176^2~1356^2~46^2~3 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0579c8d2084adf932f09fe7edb5ee9328795d89f;p=firefly-linux-kernel-4.4.55.git nfs: Initialize cb_sequenceres information before validate_seqid() For a cb_layoutrecall replay, nfsd got CB_SEQUENCE status of zero, but all informations of cb_sequenceres are zero too !!! validate_seqid() return NFS4ERR_RETRY_UNCACHED_REP for a replay, and skip the initlize cb_sequenceres. Signed-off-by: Kinglong Mee Signed-off-by: Trond Myklebust --- diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c index 7e9653aae5d8..17a5c571a006 100644 --- a/fs/nfs/callback_proc.c +++ b/fs/nfs/callback_proc.c @@ -445,6 +445,13 @@ __be32 nfs4_callback_sequence(struct cb_sequenceargs *args, goto out; } + memcpy(&res->csr_sessionid, &args->csa_sessionid, + sizeof(res->csr_sessionid)); + res->csr_sequenceid = args->csa_sequenceid; + res->csr_slotid = args->csa_slotid; + res->csr_highestslotid = NFS41_BC_MAX_CALLBACKS - 1; + res->csr_target_highestslotid = NFS41_BC_MAX_CALLBACKS - 1; + status = validate_seqid(tbl, args); spin_unlock(&tbl->slot_tbl_lock); if (status) @@ -462,13 +469,6 @@ __be32 nfs4_callback_sequence(struct cb_sequenceargs *args, goto out; } - memcpy(&res->csr_sessionid, &args->csa_sessionid, - sizeof(res->csr_sessionid)); - res->csr_sequenceid = args->csa_sequenceid; - res->csr_slotid = args->csa_slotid; - res->csr_highestslotid = NFS41_BC_MAX_CALLBACKS - 1; - res->csr_target_highestslotid = NFS41_BC_MAX_CALLBACKS - 1; - /* * RFC5661 20.9.3 * If CB_SEQUENCE returns an error, then the state of the slot