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authorTrond Myklebust <trond.myklebust@hammerspace.com>2018-09-02 19:19:07 -0400
committerTrond Myklebust <trond.myklebust@hammerspace.com>2018-09-30 15:35:17 -0400
commitace9fad43aa60a88af4b57a8328f0958e3d07bf0 (patch)
treeac636c66b18951b20fd08a180f56441879bc50b5 /fs/nfs
parent9ae075fdd1901b60d87a0404f9c110753e16969a (diff)
NFSv4: Convert struct nfs4_state to use refcount_t
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs4_fs.h2
-rw-r--r--fs/nfs/nfs4proc.c8
-rw-r--r--fs/nfs/nfs4state.c8
3 files changed, 9 insertions, 9 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 1b4737f4cac4..8d59c9655ec4 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -188,7 +188,7 @@ struct nfs4_state {
unsigned int n_wronly; /* Number of write-only references */
unsigned int n_rdwr; /* Number of read/write references */
fmode_t state; /* State on the server (R,W, or RW) */
- atomic_t count;
+ refcount_t count;
wait_queue_head_t waitq;
struct rcu_head rcu_head;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 10c20a5b075d..4da59bd53f98 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1777,7 +1777,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata)
out:
return ERR_PTR(ret);
out_return_state:
- atomic_inc(&state->count);
+ refcount_inc(&state->count);
return state;
}
@@ -1849,7 +1849,7 @@ _nfs4_opendata_reclaim_to_nfs4_state(struct nfs4_opendata *data)
update:
update_open_stateid(state, &data->o_res.stateid, NULL,
data->o_arg.fmode);
- atomic_inc(&state->count);
+ refcount_inc(&state->count);
return state;
}
@@ -1887,7 +1887,7 @@ nfs4_opendata_find_nfs4_state(struct nfs4_opendata *data)
return ERR_CAST(inode);
if (data->state != NULL && data->state->inode == inode) {
state = data->state;
- atomic_inc(&state->count);
+ refcount_inc(&state->count);
} else
state = nfs4_get_open_state(inode, data->owner);
iput(inode);
@@ -1978,7 +1978,7 @@ static struct nfs4_opendata *nfs4_open_recoverdata_alloc(struct nfs_open_context
if (opendata == NULL)
return ERR_PTR(-ENOMEM);
opendata->state = state;
- atomic_inc(&state->count);
+ refcount_inc(&state->count);
return opendata;
}
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 7feac365038c..6ca3bd076073 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -655,7 +655,7 @@ nfs4_alloc_open_state(void)
state = kzalloc(sizeof(*state), GFP_NOFS);
if (!state)
return NULL;
- atomic_set(&state->count, 1);
+ refcount_set(&state->count, 1);
INIT_LIST_HEAD(&state->lock_states);
spin_lock_init(&state->state_lock);
seqlock_init(&state->seqlock);
@@ -689,7 +689,7 @@ __nfs4_find_state_byowner(struct inode *inode, struct nfs4_state_owner *owner)
continue;
if (!nfs4_valid_open_stateid(state))
continue;
- if (atomic_inc_not_zero(&state->count))
+ if (refcount_inc_not_zero(&state->count))
return state;
}
return NULL;
@@ -743,7 +743,7 @@ void nfs4_put_open_state(struct nfs4_state *state)
struct inode *inode = state->inode;
struct nfs4_state_owner *owner = state->owner;
- if (!atomic_dec_and_lock(&state->count, &owner->so_lock))
+ if (!refcount_dec_and_lock(&state->count, &owner->so_lock))
return;
spin_lock(&inode->i_lock);
list_del_rcu(&state->inode_states);
@@ -1573,7 +1573,7 @@ restart:
continue;
if (state->state == 0)
continue;
- atomic_inc(&state->count);
+ refcount_inc(&state->count);
spin_unlock(&sp->so_lock);
status = ops->recover_open(sp, state);
if (status >= 0) {