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-rw-r--r--fs/nfs/delegation.c47
1 files changed, 45 insertions, 2 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 618a327..c6f07c1 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -8,6 +8,7 @@
*/
#include <linux/config.h>
#include <linux/completion.h>
+#include <linux/kthread.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
@@ -130,6 +131,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
sizeof(delegation->stateid.data));
delegation->type = res->delegation_type;
delegation->maxsize = res->maxsize;
+ delegation->change_attr = nfsi->change_attr;
delegation->cred = get_rpccred(cred);
delegation->inode = inode;
@@ -157,8 +159,6 @@ static int nfs_do_return_delegation(struct inode *inode, struct nfs_delegation *
{
int res = 0;
- __nfs_revalidate_inode(NFS_SERVER(inode), inode);
-
res = nfs4_proc_delegreturn(inode, delegation->cred, &delegation->stateid);
nfs_free_delegation(delegation);
return res;
@@ -231,6 +231,49 @@ restart:
spin_unlock(&clp->cl_lock);
}
+int nfs_do_expire_all_delegations(void *ptr)
+{
+ struct nfs4_client *clp = ptr;
+ struct nfs_delegation *delegation;
+ struct inode *inode;
+
+ allow_signal(SIGKILL);
+restart:
+ spin_lock(&clp->cl_lock);
+ if (test_bit(NFS4CLNT_STATE_RECOVER, &clp->cl_state) != 0)
+ goto out;
+ if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) == 0)
+ goto out;
+ list_for_each_entry(delegation, &clp->cl_delegations, super_list) {
+ inode = igrab(delegation->inode);
+ if (inode == NULL)
+ continue;
+ spin_unlock(&clp->cl_lock);
+ nfs_inode_return_delegation(inode);
+ iput(inode);
+ goto restart;
+ }
+out:
+ spin_unlock(&clp->cl_lock);
+ nfs4_put_client(clp);
+ module_put_and_exit(0);
+}
+
+void nfs_expire_all_delegations(struct nfs4_client *clp)
+{
+ struct task_struct *task;
+
+ __module_get(THIS_MODULE);
+ atomic_inc(&clp->cl_count);
+ task = kthread_run(nfs_do_expire_all_delegations, clp,
+ "%u.%u.%u.%u-delegreturn",
+ NIPQUAD(clp->cl_addr));
+ if (!IS_ERR(task))
+ return;
+ nfs4_put_client(clp);
+ module_put(THIS_MODULE);
+}
+
/*
* Return all delegations following an NFS4ERR_CB_PATH_DOWN error.
*/
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