Commit 1bba38b2 authored by Trond Myklebust's avatar Trond Myklebust

NFSv4: Clean up nfs_delegation_reap_unclaimed()

Convert nfs_delegation_reap_unclaimed() to use nfs_client_for_each_server()
for efficiency.
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent af3b61bf
......@@ -1092,22 +1092,15 @@ void nfs_delegation_mark_reclaim(struct nfs_client *clp)
rcu_read_unlock();
}
/**
* nfs_delegation_reap_unclaimed - reap unclaimed delegations after reboot recovery is done
* @clp: nfs_client to process
*
*/
void nfs_delegation_reap_unclaimed(struct nfs_client *clp)
static int nfs_server_reap_unclaimed_delegations(struct nfs_server *server,
void __always_unused *data)
{
struct nfs_delegation *delegation;
struct nfs_server *server;
struct inode *inode;
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) {
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,
......@@ -1115,14 +1108,9 @@ void nfs_delegation_reap_unclaimed(struct nfs_client *clp)
test_bit(NFS_DELEGATION_NEED_RECLAIM,
&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;
}
if (inode == NULL)
goto restart_locked;
delegation = nfs_start_delegation_return_locked(NFS_I(inode));
rcu_read_unlock();
if (delegation != NULL) {
......@@ -1133,12 +1121,22 @@ void nfs_delegation_reap_unclaimed(struct nfs_client *clp)
nfs_put_delegation(delegation);
}
iput(inode);
nfs_sb_deactive(server->super);
cond_resched();
goto restart;
}
}
rcu_read_unlock();
return 0;
}
/**
* nfs_delegation_reap_unclaimed - reap unclaimed delegations after reboot recovery is done
* @clp: nfs_client to process
*
*/
void nfs_delegation_reap_unclaimed(struct nfs_client *clp)
{
nfs_client_for_each_server(clp, nfs_server_reap_unclaimed_delegations,
NULL);
}
static inline bool nfs4_server_rebooted(const struct nfs_client *clp)
......
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