* NFS file delegation management
*
*/
-#include <linux/config.h>
#include <linux/completion.h>
#include <linux/kthread.h>
#include <linux/module.h>
#include "nfs4_fs.h"
#include "delegation.h"
-
-static struct nfs_delegation *nfs_alloc_delegation(void)
-{
- return (struct nfs_delegation *)kmalloc(sizeof(struct nfs_delegation), GFP_KERNEL);
-}
+#include "internal.h"
static void nfs_free_delegation(struct nfs_delegation *delegation)
{
case -NFS4ERR_EXPIRED:
/* kill_proc(fl->fl_pid, SIGLOST, 1); */
case -NFS4ERR_STALE_CLIENTID:
- nfs4_schedule_state_recovery(NFS_SERVER(inode)->nfs4_state);
+ nfs4_schedule_state_recovery(NFS_SERVER(inode)->nfs_client);
goto out_err;
}
}
*/
int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res)
{
- struct nfs4_client *clp = NFS_SERVER(inode)->nfs4_state;
+ struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_delegation *delegation;
int status = 0;
if ((nfsi->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATTR)))
__nfs_revalidate_inode(NFS_SERVER(inode), inode);
- delegation = nfs_alloc_delegation();
+ delegation = kmalloc(sizeof(*delegation), GFP_KERNEL);
if (delegation == NULL)
return -ENOMEM;
memcpy(delegation->stateid.data, res->delegation.data,
sizeof(delegation->stateid)) != 0 ||
delegation->type != nfsi->delegation->type) {
printk("%s: server %u.%u.%u.%u, handed out a duplicate delegation!\n",
- __FUNCTION__, NIPQUAD(clp->cl_addr));
+ __FUNCTION__, NIPQUAD(clp->cl_addr.sin_addr));
status = -EIO;
}
}
*/
int __nfs_inode_return_delegation(struct inode *inode)
{
- struct nfs4_client *clp = NFS_SERVER(inode)->nfs4_state;
+ struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_delegation *delegation;
int res = 0;
*/
void nfs_return_all_delegations(struct super_block *sb)
{
- struct nfs4_client *clp = NFS_SB(sb)->nfs4_state;
+ struct nfs_client *clp = NFS_SB(sb)->nfs_client;
struct nfs_delegation *delegation;
struct inode *inode;
int nfs_do_expire_all_delegations(void *ptr)
{
- struct nfs4_client *clp = ptr;
+ struct nfs_client *clp = ptr;
struct nfs_delegation *delegation;
struct inode *inode;
}
out:
spin_unlock(&clp->cl_lock);
- nfs4_put_client(clp);
+ nfs_put_client(clp);
module_put_and_exit(0);
}
-void nfs_expire_all_delegations(struct nfs4_client *clp)
+void nfs_expire_all_delegations(struct nfs_client *clp)
{
struct task_struct *task;
atomic_inc(&clp->cl_count);
task = kthread_run(nfs_do_expire_all_delegations, clp,
"%u.%u.%u.%u-delegreturn",
- NIPQUAD(clp->cl_addr));
+ NIPQUAD(clp->cl_addr.sin_addr));
if (!IS_ERR(task))
return;
- nfs4_put_client(clp);
+ nfs_put_client(clp);
module_put(THIS_MODULE);
}
/*
* Return all delegations following an NFS4ERR_CB_PATH_DOWN error.
*/
-void nfs_handle_cb_pathdown(struct nfs4_client *clp)
+void nfs_handle_cb_pathdown(struct nfs_client *clp)
{
struct nfs_delegation *delegation;
struct inode *inode;
struct recall_threadargs {
struct inode *inode;
- struct nfs4_client *clp;
+ struct nfs_client *clp;
const nfs4_stateid *stateid;
struct completion started;
{
struct recall_threadargs *args = (struct recall_threadargs *)data;
struct inode *inode = igrab(args->inode);
- struct nfs4_client *clp = NFS_SERVER(inode)->nfs4_state;
+ struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_delegation *delegation;
/*
* Retrieve the inode associated with a delegation
*/
-struct inode *nfs_delegation_find_inode(struct nfs4_client *clp, const struct nfs_fh *fhandle)
+struct inode *nfs_delegation_find_inode(struct nfs_client *clp, const struct nfs_fh *fhandle)
{
struct nfs_delegation *delegation;
struct inode *res = NULL;
/*
* Mark all delegations as needing to be reclaimed
*/
-void nfs_delegation_mark_reclaim(struct nfs4_client *clp)
+void nfs_delegation_mark_reclaim(struct nfs_client *clp)
{
struct nfs_delegation *delegation;
spin_lock(&clp->cl_lock);
/*
* Reap all unclaimed delegations after reboot recovery is done
*/
-void nfs_delegation_reap_unclaimed(struct nfs4_client *clp)
+void nfs_delegation_reap_unclaimed(struct nfs_client *clp)
{
struct nfs_delegation *delegation, *n;
LIST_HEAD(head);
nfs_free_delegation(delegation);
}
}
+
+int nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode)
+{
+ struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
+ struct nfs_inode *nfsi = NFS_I(inode);
+ struct nfs_delegation *delegation;
+ int res = 0;
+
+ if (nfsi->delegation_state == 0)
+ return 0;
+ spin_lock(&clp->cl_lock);
+ delegation = nfsi->delegation;
+ if (delegation != NULL) {
+ memcpy(dst->data, delegation->stateid.data, sizeof(dst->data));
+ res = 1;
+ }
+ spin_unlock(&clp->cl_lock);
+ return res;
+}