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-rw-r--r--fs/nfsd/nfs4proc.c2
-rw-r--r--fs/nfsd/nfs4state.c64
-rw-r--r--fs/nfsd/nfs4xdr.c3
-rw-r--r--include/linux/nfsd/state.h21
-rw-r--r--include/linux/nfsd/xdr4.h12
5 files changed, 60 insertions, 42 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index d781658e808..d606c6a427d 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1120,7 +1120,7 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
BUG_ON(op->status == nfs_ok);
encode_op:
- /* Only from SEQUENCE or CREATE_SESSION */
+ /* Only from SEQUENCE */
if (resp->cstate.status == nfserr_replay_cache) {
dprintk("%s NFS4.1 replay from cache\n", __func__);
if (nfsd4_not_cached(resp))
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 99df8e7a687..7729d092c8a 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -653,8 +653,6 @@ static inline void
free_client(struct nfs4_client *clp)
{
shutdown_callback_client(clp);
- nfsd4_release_respages(clp->cl_slot.sl_cache_entry.ce_respages,
- clp->cl_slot.sl_cache_entry.ce_resused);
if (clp->cl_cred.cr_group_info)
put_group_info(clp->cl_cred.cr_group_info);
kfree(clp->cl_principal);
@@ -1293,12 +1291,11 @@ out_copy:
exid->clientid.cl_boot = new->cl_clientid.cl_boot;
exid->clientid.cl_id = new->cl_clientid.cl_id;
- new->cl_slot.sl_seqid = 0;
exid->seqid = 1;
nfsd4_set_ex_flags(new, exid);
dprintk("nfsd4_exchange_id seqid %d flags %x\n",
- new->cl_slot.sl_seqid, new->cl_exchange_flags);
+ new->cl_cs_slot.sl_seqid, new->cl_exchange_flags);
status = nfs_ok;
out:
@@ -1334,15 +1331,35 @@ check_slot_seqid(u32 seqid, u32 slot_seqid, int slot_inuse)
return nfserr_seq_misordered;
}
+/*
+ * Cache the create session result into the create session single DRC
+ * slot cache by saving the xdr structure. sl_seqid has been set.
+ * Do this for solo or embedded create session operations.
+ */
+static void
+nfsd4_cache_create_session(struct nfsd4_create_session *cr_ses,
+ struct nfsd4_clid_slot *slot, int nfserr)
+{
+ slot->sl_status = nfserr;
+ memcpy(&slot->sl_cr_ses, cr_ses, sizeof(*cr_ses));
+}
+
+static __be32
+nfsd4_replay_create_session(struct nfsd4_create_session *cr_ses,
+ struct nfsd4_clid_slot *slot)
+{
+ memcpy(cr_ses, &slot->sl_cr_ses, sizeof(*cr_ses));
+ return slot->sl_status;
+}
+
__be32
nfsd4_create_session(struct svc_rqst *rqstp,
struct nfsd4_compound_state *cstate,
struct nfsd4_create_session *cr_ses)
{
u32 ip_addr = svc_addr_in(rqstp)->sin_addr.s_addr;
- struct nfsd4_compoundres *resp = rqstp->rq_resp;
struct nfs4_client *conf, *unconf;
- struct nfsd4_slot *slot = NULL;
+ struct nfsd4_clid_slot *cs_slot = NULL;
int status = 0;
nfs4_lock_state();
@@ -1350,25 +1367,22 @@ nfsd4_create_session(struct svc_rqst *rqstp,
conf = find_confirmed_client(&cr_ses->clientid);
if (conf) {
- slot = &conf->cl_slot;
- status = check_slot_seqid(cr_ses->seqid, slot->sl_seqid,
- slot->sl_inuse);
+ cs_slot = &conf->cl_cs_slot;
+ status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
if (status == nfserr_replay_cache) {
dprintk("Got a create_session replay! seqid= %d\n",
- slot->sl_seqid);
- cstate->slot = slot;
- cstate->status = status;
+ cs_slot->sl_seqid);
/* Return the cached reply status */
- status = nfsd4_replay_cache_entry(resp, NULL);
+ status = nfsd4_replay_create_session(cr_ses, cs_slot);
goto out;
- } else if (cr_ses->seqid != conf->cl_slot.sl_seqid + 1) {
+ } else if (cr_ses->seqid != cs_slot->sl_seqid + 1) {
status = nfserr_seq_misordered;
dprintk("Sequence misordered!\n");
dprintk("Expected seqid= %d but got seqid= %d\n",
- slot->sl_seqid, cr_ses->seqid);
+ cs_slot->sl_seqid, cr_ses->seqid);
goto out;
}
- conf->cl_slot.sl_seqid++;
+ cs_slot->sl_seqid++;
} else if (unconf) {
if (!same_creds(&unconf->cl_cred, &rqstp->rq_cred) ||
(ip_addr != unconf->cl_addr)) {
@@ -1376,16 +1390,15 @@ nfsd4_create_session(struct svc_rqst *rqstp,
goto out;
}
- slot = &unconf->cl_slot;
- status = check_slot_seqid(cr_ses->seqid, slot->sl_seqid,
- slot->sl_inuse);
+ cs_slot = &unconf->cl_cs_slot;
+ status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
if (status) {
/* an unconfirmed replay returns misordered */
status = nfserr_seq_misordered;
- goto out;
+ goto out_cache;
}
- slot->sl_seqid++; /* from 0 to 1 */
+ cs_slot->sl_seqid++; /* from 0 to 1 */
move_to_confirmed(unconf);
/*
@@ -1406,12 +1419,11 @@ nfsd4_create_session(struct svc_rqst *rqstp,
memcpy(cr_ses->sessionid.data, conf->cl_sessionid.data,
NFS4_MAX_SESSIONID_LEN);
- cr_ses->seqid = slot->sl_seqid;
+ cr_ses->seqid = cs_slot->sl_seqid;
- slot->sl_inuse = true;
- cstate->slot = slot;
- /* Ensure a page is used for the cache */
- slot->sl_cache_entry.ce_cachethis = 1;
+out_cache:
+ /* cache solo and embedded create sessions under the state lock */
+ nfsd4_cache_create_session(cr_ses, cs_slot, status);
out:
nfs4_unlock_state();
dprintk("%s returns %d\n", __func__, ntohl(status));
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 2dcc7feaa6f..fdf632bf1cf 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3313,8 +3313,7 @@ nfs4svc_encode_compoundres(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_compo
dprintk("%s: SET SLOT STATE TO AVAILABLE\n", __func__);
resp->cstate.slot->sl_inuse = 0;
}
- if (resp->cstate.session)
- nfsd4_put_session(resp->cstate.session);
+ nfsd4_put_session(resp->cstate.session);
}
return 1;
}
diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
index a6c87d62389..58bb19784e1 100644
--- a/include/linux/nfsd/state.h
+++ b/include/linux/nfsd/state.h
@@ -127,6 +127,25 @@ struct nfsd4_channel_attrs {
u32 rdma_attrs;
};
+struct nfsd4_create_session {
+ clientid_t clientid;
+ struct nfs4_sessionid sessionid;
+ u32 seqid;
+ u32 flags;
+ struct nfsd4_channel_attrs fore_channel;
+ struct nfsd4_channel_attrs back_channel;
+ u32 callback_prog;
+ u32 uid;
+ u32 gid;
+};
+
+/* The single slot clientid cache structure */
+struct nfsd4_clid_slot {
+ u32 sl_seqid;
+ __be32 sl_status;
+ struct nfsd4_create_session sl_cr_ses;
+};
+
struct nfsd4_session {
struct kref se_ref;
struct list_head se_hash; /* hash by sessionid */
@@ -193,7 +212,7 @@ struct nfs4_client {
/* for nfs41 */
struct list_head cl_sessions;
- struct nfsd4_slot cl_slot; /* create_session slot */
+ struct nfsd4_clid_slot cl_cs_slot; /* create_session slot */
u32 cl_exchange_flags;
struct nfs4_sessionid cl_sessionid;
};
diff --git a/include/linux/nfsd/xdr4.h b/include/linux/nfsd/xdr4.h
index 2bacf753506..5e4beb0deb8 100644
--- a/include/linux/nfsd/xdr4.h
+++ b/include/linux/nfsd/xdr4.h
@@ -366,18 +366,6 @@ struct nfsd4_exchange_id {
int spa_how;
};
-struct nfsd4_create_session {
- clientid_t clientid;
- struct nfs4_sessionid sessionid;
- u32 seqid;
- u32 flags;
- struct nfsd4_channel_attrs fore_channel;
- struct nfsd4_channel_attrs back_channel;
- u32 callback_prog;
- u32 uid;
- u32 gid;
-};
-
struct nfsd4_sequence {
struct nfs4_sessionid sessionid; /* request/response */
u32 seqid; /* request/response */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 16:36:51 +0000