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| author |   Olga Kornievskaia <kolga@netapp.com> | 2019-10-09 11:50:48 -0400 |
|---|---|---|
| committer |   J. Bruce Fields <bfields@redhat.com> | 2019-12-09 11:44:07 -0500 |
| commit | ce0887ac96d35c7105090e166bb0807dc0a0e838 (patch) | |
| tree | 3533f0f13ce8b69cb1d16b85ec4681e86459e9ff /fs/nfsd/nfs4state.c | |
| parent | NFSD: allow inter server COPY to have a STALE source server fh (diff) | |
| download | linux-dev-ce0887ac96d35c7105090e166bb0807dc0a0e838.tar.xz linux-dev-ce0887ac96d35c7105090e166bb0807dc0a0e838.zip | |
NFSD add nfs4 inter ssc to nfsd4_copy
Given a universal address, mount the source server from the destination
server. Use an internal mount. Call the NFS client nfs42_ssc_open to
obtain the NFS struct file suitable for nfsd_copy_range.
Ability to do "inter" server-to-server depends on the an nfsd kernel
parameter "inter_copy_offload_enable".
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Diffstat (limited to 'fs/nfsd/nfs4state.c')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index ed5e80b3ac1f..296765e693d0 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -5681,8 +5681,9 @@ _free_cpntf_state_locked(struct nfsd_net *nn, struct nfs4_cpntf_state *cps) * copy stateid. Look up the copy notify stateid from the * idr structure and take a reference on it. */ -static __be32 _find_cpntf_state(struct nfsd_net *nn, stateid_t *st, - struct nfs4_cpntf_state **cps) +__be32 manage_cpntf_state(struct nfsd_net *nn, stateid_t *st, + struct nfs4_client *clp, + struct nfs4_cpntf_state **cps) { copy_stateid_t *cps_t; struct nfs4_cpntf_state *state = NULL; @@ -5696,12 +5697,16 @@ static __be32 _find_cpntf_state(struct nfsd_net *nn, stateid_t *st, cp_stateid); if (state->cp_stateid.sc_type != NFS4_COPYNOTIFY_STID) return nfserr_bad_stateid; - refcount_inc(&state->cp_stateid.sc_count); + if (!clp) + refcount_inc(&state->cp_stateid.sc_count); + else + _free_cpntf_state_locked(nn, state); } spin_unlock(&nn->s2s_cp_lock); if (!state) return nfserr_bad_stateid; - *cps = state; + if (!clp && state) + *cps = state; return 0; } @@ -5712,7 +5717,7 @@ static __be32 find_cpntf_state(struct nfsd_net *nn, stateid_t *st, struct nfs4_cpntf_state *cps = NULL; struct nfsd4_compound_state cstate; - status = _find_cpntf_state(nn, st, &cps); + status = manage_cpntf_state(nn, st, NULL, &cps); if (status) return status; |