@@ -1222,62 +1222,59 @@ nfs_delegation_test_free_expired(struct inode *inode,
nfs_remove_bad_delegation(inode, stateid);
}
-/**
- * nfs_reap_expired_delegations - reap expired delegations
- * @clp: nfs_client to process
- *
- * Iterates through all the delegations associated with this server and
- * checks if they have may have been revoked. This function is usually
- * expected to be called in cases where the server may have lost its
- * lease.
- */
-void nfs_reap_expired_delegations(struct nfs_client *clp)
+static int nfs_server_reap_expired_delegations(struct nfs_server *server,
+ void __always_unused *data)
{
struct nfs_delegation *delegation;
- struct nfs_server *server;
struct inode *inode;
const struct cred *cred;
nfs4_stateid stateid;
-
restart:
rcu_read_lock();
- list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) {
- list_for_each_entry_rcu(delegation, &server->delegations,
- super_list) {
- if (test_bit(NFS_DELEGATION_INODE_FREEING,
- &delegation->flags) ||
- test_bit(NFS_DELEGATION_RETURNING,
- &delegation->flags) ||
- test_bit(NFS_DELEGATION_TEST_EXPIRED,
- &delegation->flags) == 0)
- continue;
- if (!nfs_sb_active(server->super))
- break; /* continue in outer loop */
- inode = nfs_delegation_grab_inode(delegation);
- if (inode == NULL) {
- rcu_read_unlock();
- nfs_sb_deactive(server->super);
- goto restart;
- }
- cred = get_cred_rcu(delegation->cred);
- nfs4_stateid_copy(&stateid, &delegation->stateid);
- clear_bit(NFS_DELEGATION_TEST_EXPIRED, &delegation->flags);
- rcu_read_unlock();
- nfs_delegation_test_free_expired(inode, &stateid, cred);
- put_cred(cred);
- if (nfs4_server_rebooted(clp)) {
- nfs_inode_mark_test_expired_delegation(server,inode);
- iput(inode);
- nfs_sb_deactive(server->super);
- return;
- }
+restart_locked:
+ list_for_each_entry_rcu(delegation, &server->delegations, super_list) {
+ if (test_bit(NFS_DELEGATION_INODE_FREEING,
+ &delegation->flags) ||
+ test_bit(NFS_DELEGATION_RETURNING,
+ &delegation->flags) ||
+ test_bit(NFS_DELEGATION_TEST_EXPIRED,
+ &delegation->flags) == 0)
+ continue;
+ inode = nfs_delegation_grab_inode(delegation);
+ if (inode == NULL)
+ goto restart_locked;
+ cred = get_cred_rcu(delegation->cred);
+ nfs4_stateid_copy(&stateid, &delegation->stateid);
+ clear_bit(NFS_DELEGATION_TEST_EXPIRED, &delegation->flags);
+ rcu_read_unlock();
+ nfs_delegation_test_free_expired(inode, &stateid, cred);
+ put_cred(cred);
+ if (!nfs4_server_rebooted(server->nfs_client)) {
iput(inode);
- nfs_sb_deactive(server->super);
cond_resched();
goto restart;
}
+ nfs_inode_mark_test_expired_delegation(server,inode);
+ iput(inode);
+ return -EAGAIN;
}
rcu_read_unlock();
+ return 0;
+}
+
+/**
+ * nfs_reap_expired_delegations - reap expired delegations
+ * @clp: nfs_client to process
+ *
+ * Iterates through all the delegations associated with this server and
+ * checks if they have may have been revoked. This function is usually
+ * expected to be called in cases where the server may have lost its
+ * lease.
+ */
+void nfs_reap_expired_delegations(struct nfs_client *clp)
+{
+ nfs_client_for_each_server(clp, nfs_server_reap_expired_delegations,
+ NULL);
}
void nfs_inode_find_delegation_state_and_recover(struct inode *inode,
Convert to use nfs_client_for_each_server() for efficiency. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> --- fs/nfs/delegation.c | 83 ++++++++++++++++++++++----------------------- 1 file changed, 40 insertions(+), 43 deletions(-)