static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg)
{
- struct file_lock *fl;
+ struct file_lock *fl, *ret;
struct fasync_struct *new;
- struct inode *inode = filp->f_path.dentry->d_inode;
int error;
fl = lease_alloc(filp, arg);
locks_free_lock(fl);
return -ENOMEM;
}
+ ret = fl;
lock_flocks();
- error = __vfs_setlease(filp, arg, &fl);
+ error = __vfs_setlease(filp, arg, &ret);
if (error) {
unlock_flocks();
locks_free_lock(fl);
goto out_free_fasync;
}
+ if (ret != fl)
+ locks_free_lock(fl);
/*
* fasync_insert_entry() returns the old entry if any.
* inserted it into the fasync list. Clear new so that
* we don't release it here.
*/
- if (!fasync_insert_entry(fd, filp, &fl->fl_fasync, new))
+ if (!fasync_insert_entry(fd, filp, &ret->fl_fasync, new))
new = NULL;
- if (error < 0) {
- /* remove lease just inserted by setlease */
- fl->fl_type = F_UNLCK | F_INPROGRESS;
- fl->fl_break_time = jiffies - 10;
- time_out_leases(inode);
- } else {
- error = __f_setown(filp, task_pid(current), PIDTYPE_PID, 0);
- }
+ error = __f_setown(filp, task_pid(current), PIDTYPE_PID, 0);
unlock_flocks();
out_free_fasync:
spin_unlock(&clp->cl_lock);
}
-static void nfsd4_register_conn(struct nfsd4_conn *conn)
+static int nfsd4_register_conn(struct nfsd4_conn *conn)
{
conn->cn_xpt_user.callback = nfsd4_conn_lost;
- register_xpt_user(conn->cn_xprt, &conn->cn_xpt_user);
+ return register_xpt_user(conn->cn_xprt, &conn->cn_xpt_user);
}
static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses)
{
struct nfsd4_conn *conn;
u32 flags = NFS4_CDFC4_FORE;
+ int ret;
if (ses->se_flags & SESSION4_BACK_CHAN)
flags |= NFS4_CDFC4_BACK;
if (!conn)
return nfserr_jukebox;
nfsd4_hash_conn(conn, ses);
- nfsd4_register_conn(conn);
+ ret = nfsd4_register_conn(conn);
+ if (ret)
+ /* oops; xprt is already down: */
+ nfsd4_conn_lost(&conn->cn_xpt_user);
return nfs_ok;
}
{
struct nfs4_client *clp = ses->se_client;
struct nfsd4_conn *c;
+ int ret;
spin_lock(&clp->cl_lock);
c = __nfsd4_find_conn(new->cn_xprt, ses);
}
__nfsd4_hash_conn(new, ses);
spin_unlock(&clp->cl_lock);
- nfsd4_register_conn(new);
+ ret = nfsd4_register_conn(new);
+ if (ret)
+ /* oops; xprt is already down: */
+ nfsd4_conn_lost(&new->cn_xpt_user);
return;
}
struct net *xpt_net;
};
-static inline void register_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u)
+static inline void unregister_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u)
{
spin_lock(&xpt->xpt_lock);
- list_add(&u->list, &xpt->xpt_users);
+ list_del_init(&u->list);
spin_unlock(&xpt->xpt_lock);
}
-static inline void unregister_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u)
+static inline int register_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u)
{
spin_lock(&xpt->xpt_lock);
- list_del_init(&u->list);
+ if (test_bit(XPT_CLOSE, &xpt->xpt_flags)) {
+ /*
+ * The connection is about to be deleted soon (or,
+ * worse, may already be deleted--in which case we've
+ * already notified the xpt_users).
+ */
+ spin_unlock(&xpt->xpt_lock);
+ return -ENOTCONN;
+ }
+ list_add(&u->list, &xpt->xpt_users);
spin_unlock(&xpt->xpt_lock);
+ return 0;
}
int svc_reg_xprt_class(struct svc_xprt_class *);