forked from luck/tmp_suning_uos_patched
NFSv4: Move contents of struct rpc_sequence into struct nfs_seqid_counter
Clean up. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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9d12b216aa
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7ba127ab9f
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@ -53,21 +53,13 @@ struct nfs4_minor_version_ops {
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const struct nfs4_state_maintenance_ops *state_renewal_ops;
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};
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/*
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* struct rpc_sequence ensures that RPC calls are sent in the exact
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* order that they appear on the list.
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*/
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struct rpc_sequence {
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struct rpc_wait_queue wait; /* RPC call delay queue */
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spinlock_t lock; /* Protects the list */
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struct list_head list; /* Defines sequence of RPC calls */
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};
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#define NFS_SEQID_CONFIRMED 1
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struct nfs_seqid_counter {
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struct rpc_sequence *sequence;
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int flags;
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u32 counter;
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spinlock_t lock; /* Protects the list */
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struct list_head list; /* Defines sequence of RPC calls */
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struct rpc_wait_queue wait; /* RPC call delay queue */
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};
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struct nfs_seqid {
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@ -99,7 +91,6 @@ struct nfs4_state_owner {
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unsigned long so_flags;
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struct list_head so_states;
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struct nfs_seqid_counter so_seqid;
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struct rpc_sequence so_sequence;
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int so_owner_id;
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};
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@ -142,7 +133,6 @@ struct nfs4_lock_state {
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int ls_flags;
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int ls_id;
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struct nfs_seqid_counter ls_seqid;
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struct rpc_sequence ls_sequence;
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nfs4_stateid ls_stateid;
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atomic_t ls_count;
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struct nfs4_lock_owner ls_owner;
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@ -384,6 +384,22 @@ nfs4_remove_state_owner_locked(struct nfs4_state_owner *sp)
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ida_remove(&server->openowner_id, sp->so_owner_id);
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}
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static void
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nfs4_init_seqid_counter(struct nfs_seqid_counter *sc)
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{
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sc->flags = 0;
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sc->counter = 0;
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spin_lock_init(&sc->lock);
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INIT_LIST_HEAD(&sc->list);
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rpc_init_wait_queue(&sc->wait, "Seqid_waitqueue");
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}
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static void
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nfs4_destroy_seqid_counter(struct nfs_seqid_counter *sc)
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{
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rpc_destroy_wait_queue(&sc->wait);
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}
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/*
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* nfs4_alloc_state_owner(): this is called on the OPEN or CREATE path to
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* create a new state_owner.
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@ -403,10 +419,7 @@ nfs4_alloc_state_owner(struct nfs_server *server,
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sp->so_cred = get_rpccred(cred);
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spin_lock_init(&sp->so_lock);
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INIT_LIST_HEAD(&sp->so_states);
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rpc_init_wait_queue(&sp->so_sequence.wait, "Seqid_waitqueue");
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sp->so_seqid.sequence = &sp->so_sequence;
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spin_lock_init(&sp->so_sequence.lock);
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INIT_LIST_HEAD(&sp->so_sequence.list);
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nfs4_init_seqid_counter(&sp->so_seqid);
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atomic_set(&sp->so_count, 1);
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INIT_LIST_HEAD(&sp->so_lru);
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return sp;
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@ -428,7 +441,7 @@ nfs4_drop_state_owner(struct nfs4_state_owner *sp)
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static void nfs4_free_state_owner(struct nfs4_state_owner *sp)
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{
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rpc_destroy_wait_queue(&sp->so_sequence.wait);
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nfs4_destroy_seqid_counter(&sp->so_seqid);
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put_rpccred(sp->so_cred);
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kfree(sp);
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}
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@ -748,10 +761,7 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
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lsp = kzalloc(sizeof(*lsp), GFP_NOFS);
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if (lsp == NULL)
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return NULL;
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rpc_init_wait_queue(&lsp->ls_sequence.wait, "lock_seqid_waitqueue");
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spin_lock_init(&lsp->ls_sequence.lock);
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INIT_LIST_HEAD(&lsp->ls_sequence.list);
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lsp->ls_seqid.sequence = &lsp->ls_sequence;
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nfs4_init_seqid_counter(&lsp->ls_seqid);
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atomic_set(&lsp->ls_count, 1);
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lsp->ls_state = state;
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lsp->ls_owner.lo_type = type;
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@ -780,7 +790,7 @@ static void nfs4_free_lock_state(struct nfs4_lock_state *lsp)
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struct nfs_server *server = lsp->ls_state->owner->so_server;
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ida_simple_remove(&server->lockowner_id, lsp->ls_id);
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rpc_destroy_wait_queue(&lsp->ls_sequence.wait);
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nfs4_destroy_seqid_counter(&lsp->ls_seqid);
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kfree(lsp);
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}
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@ -914,7 +924,7 @@ struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter, gfp_t gfp_m
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void nfs_release_seqid(struct nfs_seqid *seqid)
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{
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if (!list_empty(&seqid->list)) {
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struct rpc_sequence *sequence = seqid->sequence->sequence;
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struct nfs_seqid_counter *sequence = seqid->sequence;
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spin_lock(&sequence->lock);
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list_del_init(&seqid->list);
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@ -936,7 +946,7 @@ void nfs_free_seqid(struct nfs_seqid *seqid)
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*/
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static void nfs_increment_seqid(int status, struct nfs_seqid *seqid)
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{
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BUG_ON(list_first_entry(&seqid->sequence->sequence->list, struct nfs_seqid, list) != seqid);
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BUG_ON(list_first_entry(&seqid->sequence->list, struct nfs_seqid, list) != seqid);
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switch (status) {
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case 0:
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break;
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@ -987,7 +997,7 @@ void nfs_increment_lock_seqid(int status, struct nfs_seqid *seqid)
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int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task)
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{
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struct rpc_sequence *sequence = seqid->sequence->sequence;
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struct nfs_seqid_counter *sequence = seqid->sequence;
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int status = 0;
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spin_lock(&sequence->lock);
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