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| author |   Benny Halevy <bhalevy@panasas.com> | 2010-05-12 00:13:41 +0300 |
|---|---|---|
| committer |   J. Bruce Fields <bfields@citi.umich.edu> | 2010-05-13 11:47:22 -0400 |
| commit | 07cd4909a6c0c275ef42fd27748226975919e336 (patch) | |
| tree | 90ffb93321817320cdf3cf8dbd643272b5752f7a /fs/nfsd | |
| parent | nfsd4: introduce nfs4_client.cl_refcount (diff) | |
| download | linux-dev-07cd4909a6c0c275ef42fd27748226975919e336.tar.xz linux-dev-07cd4909a6c0c275ef42fd27748226975919e336.zip | |
nfsd4: mark_client_expired
Mark the client as expired under the client_lock so it won't be renewed
when an nfsv4.1 session is done, after it was explicitly expired
during processing of the compound.
Do not renew a client mark as expired (in particular, it is not
on the lru list anymore)
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 10 | ||||
| -rw-r--r-- | fs/nfsd/state.h | 14 |
2 files changed, 23 insertions, 1 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index e439a882e0c2..98aa7e8827b9 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -632,6 +632,14 @@ free_session(struct kref *kref) static inline void renew_client_locked(struct nfs4_client *clp) { + if (is_client_expired(clp)) { + dprintk("%s: client (clientid %08x/%08x) already expired\n", + __func__, + clp->cl_clientid.cl_boot, + clp->cl_clientid.cl_id); + return; + } + /* * Move client to the end to the LRU list. */ @@ -697,6 +705,7 @@ free_client(struct nfs4_client *clp) static inline void unhash_client_locked(struct nfs4_client *clp) { + mark_client_expired(clp); list_del(&clp->cl_lru); while (!list_empty(&clp->cl_sessions)) { struct nfsd4_session *ses; @@ -836,6 +845,7 @@ static struct nfs4_client *create_client(struct xdr_netobj name, char *recdir, INIT_LIST_HEAD(&clp->cl_delegations); INIT_LIST_HEAD(&clp->cl_sessions); INIT_LIST_HEAD(&clp->cl_lru); + clp->cl_time = get_seconds(); clear_bit(0, &clp->cl_cb_slot_busy); rpc_init_wait_queue(&clp->cl_cb_waitq, "Backchannel slot table"); copy_verf(clp, verf); diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index ee42a0beecfa..cfd743ea4b79 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -166,7 +166,7 @@ struct nfsd4_session { struct list_head se_hash; /* hash by sessionid */ struct list_head se_perclnt; u32 se_flags; - struct nfs4_client *se_client; /* for expire_client */ + struct nfs4_client *se_client; struct nfs4_sessionid se_sessionid; struct nfsd4_channel_attrs se_fchannel; struct nfsd4_channel_attrs se_bchannel; @@ -244,6 +244,18 @@ struct nfs4_client { /* wait here for slots */ }; +static inline void +mark_client_expired(struct nfs4_client *clp) +{ + clp->cl_time = 0; +} + +static inline bool +is_client_expired(struct nfs4_client *clp) +{ + return clp->cl_time == 0; +} + /* struct nfs4_client_reset * one per old client. Populates reset_str_hashtbl. Filled from conf_id_hashtbl * upon lease reset, or from upcall to state_daemon (to read in state |