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| author | Benny Halevy <bhalevy@panasas.com> | 2010-05-12 00:12:26 +0300 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2010-05-11 21:02:01 -0400 |
| commit | 9089f1b4782ff52835059779fd37b7ad765a25c7 (patch) | |
| tree | c65b34d9054a8591f1877713073cac3ca80b431c | |
| parent | 5d4cec2f2fdbb3d830fa014226d0d965df548bad (diff) | |
| download | linux-3.10-9089f1b4782ff52835059779fd37b7ad765a25c7.tar.gz linux-3.10-9089f1b4782ff52835059779fd37b7ad765a25c7.tar.bz2 linux-3.10-9089f1b4782ff52835059779fd37b7ad765a25c7.zip | |
nfsd4: rename sessionid_lock to client_lock
In preparation to share the lock's scope to both client
and session hash tables.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| -rw-r--r-- | fs/nfsd/nfs4state.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 835d6cef9ae..2313dbf086b 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -250,6 +250,9 @@ unhash_delegation(struct nfs4_delegation *dp) * SETCLIENTID state */ +/* client_lock protects the session hash table */ +static DEFINE_SPINLOCK(client_lock); + /* Hash tables for nfs4_clientid state */ #define CLIENT_HASH_BITS 4 #define CLIENT_HASH_SIZE (1 << CLIENT_HASH_BITS) @@ -368,7 +371,6 @@ static void release_openowner(struct nfs4_stateowner *sop) nfs4_put_stateowner(sop); } -static DEFINE_SPINLOCK(sessionid_lock); #define SESSION_HASH_SIZE 512 static struct list_head sessionid_hashtbl[SESSION_HASH_SIZE]; @@ -566,10 +568,10 @@ alloc_init_session(struct svc_rqst *rqstp, struct nfs4_client *clp, new->se_flags = cses->flags; kref_init(&new->se_ref); - spin_lock(&sessionid_lock); + spin_lock(&client_lock); list_add(&new->se_hash, &sessionid_hashtbl[idx]); list_add(&new->se_perclnt, &clp->cl_sessions); - spin_unlock(&sessionid_lock); + spin_unlock(&client_lock); status = nfs_ok; out: @@ -580,7 +582,7 @@ out_free: goto out; } -/* caller must hold sessionid_lock */ +/* caller must hold client_lock */ static struct nfsd4_session * find_in_sessionid_hashtbl(struct nfs4_sessionid *sessionid) { @@ -603,7 +605,7 @@ find_in_sessionid_hashtbl(struct nfs4_sessionid *sessionid) return NULL; } -/* caller must hold sessionid_lock */ +/* caller must hold client_lock */ static void unhash_session(struct nfsd4_session *ses) { @@ -614,9 +616,9 @@ unhash_session(struct nfsd4_session *ses) static void release_session(struct nfsd4_session *ses) { - spin_lock(&sessionid_lock); + spin_lock(&client_lock); unhash_session(ses); - spin_unlock(&sessionid_lock); + spin_unlock(&client_lock); nfsd4_put_session(ses); } @@ -1379,15 +1381,15 @@ nfsd4_destroy_session(struct svc_rqst *r, return nfserr_not_only_op; } dump_sessionid(__func__, &sessionid->sessionid); - spin_lock(&sessionid_lock); + spin_lock(&client_lock); ses = find_in_sessionid_hashtbl(&sessionid->sessionid); if (!ses) { - spin_unlock(&sessionid_lock); + spin_unlock(&client_lock); goto out; } unhash_session(ses); - spin_unlock(&sessionid_lock); + spin_unlock(&client_lock); /* wait for callbacks */ nfsd4_set_callback_client(ses->se_client, NULL); @@ -1411,7 +1413,7 @@ nfsd4_sequence(struct svc_rqst *rqstp, if (resp->opcnt != 1) return nfserr_sequence_pos; - spin_lock(&sessionid_lock); + spin_lock(&client_lock); status = nfserr_badsession; session = find_in_sessionid_hashtbl(&seq->sessionid); if (!session) @@ -1454,7 +1456,7 @@ out: /* Hold a session reference until done processing the compound. */ if (cstate->session) nfsd4_get_session(cstate->session); - spin_unlock(&sessionid_lock); + spin_unlock(&client_lock); /* Renew the clientid on success and on replay */ if (cstate->session) { nfs4_lock_state(); |