提交 7ba127ab 编写于 作者: T Trond Myklebust

NFSv4: Move contents of struct rpc_sequence into struct nfs_seqid_counter

Clean up.
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
上级 9d12b216
......@@ -53,21 +53,13 @@ struct nfs4_minor_version_ops {
const struct nfs4_state_maintenance_ops *state_renewal_ops;
};
/*
* struct rpc_sequence ensures that RPC calls are sent in the exact
* order that they appear on the list.
*/
struct rpc_sequence {
struct rpc_wait_queue wait; /* RPC call delay queue */
spinlock_t lock; /* Protects the list */
struct list_head list; /* Defines sequence of RPC calls */
};
#define NFS_SEQID_CONFIRMED 1
struct nfs_seqid_counter {
struct rpc_sequence *sequence;
int flags;
u32 counter;
spinlock_t lock; /* Protects the list */
struct list_head list; /* Defines sequence of RPC calls */
struct rpc_wait_queue wait; /* RPC call delay queue */
};
struct nfs_seqid {
......@@ -99,7 +91,6 @@ struct nfs4_state_owner {
unsigned long so_flags;
struct list_head so_states;
struct nfs_seqid_counter so_seqid;
struct rpc_sequence so_sequence;
int so_owner_id;
};
......@@ -142,7 +133,6 @@ struct nfs4_lock_state {
int ls_flags;
int ls_id;
struct nfs_seqid_counter ls_seqid;
struct rpc_sequence ls_sequence;
nfs4_stateid ls_stateid;
atomic_t ls_count;
struct nfs4_lock_owner ls_owner;
......
......@@ -384,6 +384,22 @@ nfs4_remove_state_owner_locked(struct nfs4_state_owner *sp)
ida_remove(&server->openowner_id, sp->so_owner_id);
}
static void
nfs4_init_seqid_counter(struct nfs_seqid_counter *sc)
{
sc->flags = 0;
sc->counter = 0;
spin_lock_init(&sc->lock);
INIT_LIST_HEAD(&sc->list);
rpc_init_wait_queue(&sc->wait, "Seqid_waitqueue");
}
static void
nfs4_destroy_seqid_counter(struct nfs_seqid_counter *sc)
{
rpc_destroy_wait_queue(&sc->wait);
}
/*
* nfs4_alloc_state_owner(): this is called on the OPEN or CREATE path to
* create a new state_owner.
......@@ -403,10 +419,7 @@ nfs4_alloc_state_owner(struct nfs_server *server,
sp->so_cred = get_rpccred(cred);
spin_lock_init(&sp->so_lock);
INIT_LIST_HEAD(&sp->so_states);
rpc_init_wait_queue(&sp->so_sequence.wait, "Seqid_waitqueue");
sp->so_seqid.sequence = &sp->so_sequence;
spin_lock_init(&sp->so_sequence.lock);
INIT_LIST_HEAD(&sp->so_sequence.list);
nfs4_init_seqid_counter(&sp->so_seqid);
atomic_set(&sp->so_count, 1);
INIT_LIST_HEAD(&sp->so_lru);
return sp;
......@@ -428,7 +441,7 @@ nfs4_drop_state_owner(struct nfs4_state_owner *sp)
static void nfs4_free_state_owner(struct nfs4_state_owner *sp)
{
rpc_destroy_wait_queue(&sp->so_sequence.wait);
nfs4_destroy_seqid_counter(&sp->so_seqid);
put_rpccred(sp->so_cred);
kfree(sp);
}
......@@ -748,10 +761,7 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
lsp = kzalloc(sizeof(*lsp), GFP_NOFS);
if (lsp == NULL)
return NULL;
rpc_init_wait_queue(&lsp->ls_sequence.wait, "lock_seqid_waitqueue");
spin_lock_init(&lsp->ls_sequence.lock);
INIT_LIST_HEAD(&lsp->ls_sequence.list);
lsp->ls_seqid.sequence = &lsp->ls_sequence;
nfs4_init_seqid_counter(&lsp->ls_seqid);
atomic_set(&lsp->ls_count, 1);
lsp->ls_state = state;
lsp->ls_owner.lo_type = type;
......@@ -780,7 +790,7 @@ static void nfs4_free_lock_state(struct nfs4_lock_state *lsp)
struct nfs_server *server = lsp->ls_state->owner->so_server;
ida_simple_remove(&server->lockowner_id, lsp->ls_id);
rpc_destroy_wait_queue(&lsp->ls_sequence.wait);
nfs4_destroy_seqid_counter(&lsp->ls_seqid);
kfree(lsp);
}
......@@ -914,7 +924,7 @@ struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter, gfp_t gfp_m
void nfs_release_seqid(struct nfs_seqid *seqid)
{
if (!list_empty(&seqid->list)) {
struct rpc_sequence *sequence = seqid->sequence->sequence;
struct nfs_seqid_counter *sequence = seqid->sequence;
spin_lock(&sequence->lock);
list_del_init(&seqid->list);
......@@ -936,7 +946,7 @@ void nfs_free_seqid(struct nfs_seqid *seqid)
*/
static void nfs_increment_seqid(int status, struct nfs_seqid *seqid)
{
BUG_ON(list_first_entry(&seqid->sequence->sequence->list, struct nfs_seqid, list) != seqid);
BUG_ON(list_first_entry(&seqid->sequence->list, struct nfs_seqid, list) != seqid);
switch (status) {
case 0:
break;
......@@ -987,7 +997,7 @@ void nfs_increment_lock_seqid(int status, struct nfs_seqid *seqid)
int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task)
{
struct rpc_sequence *sequence = seqid->sequence->sequence;
struct nfs_seqid_counter *sequence = seqid->sequence;
int status = 0;
spin_lock(&sequence->lock);
......
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