diff options
| author | J. Bruce Fields <bfields@citi.umich.edu> | 2010-06-15 14:22:37 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2011-01-11 15:04:09 -0500 |
| commit | 4c6493785a1ea9c3b3522f199760a90a30e1626c (patch) | |
| tree | 30dd59c79e81cb59e77d7f270df755f061a0b8d5 /fs/nfsd | |
| parent | ec26fba40fa92c7cc5c61d40746f499dcefc67be (diff) | |
nfsd4: modify session list under cl_lock
We want to traverse this from the callback code.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index b583e4e800a..3cf9900d5f3 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -771,7 +771,9 @@ static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct n idx = hash_sessionid(&new->se_sessionid); spin_lock(&client_lock); list_add(&new->se_hash, &sessionid_hashtbl[idx]); + spin_lock(&clp->cl_lock); list_add(&new->se_perclnt, &clp->cl_sessions); + spin_unlock(&clp->cl_lock); spin_unlock(&client_lock); status = nfsd4_new_conn(rqstp, new); @@ -819,7 +821,9 @@ static void unhash_session(struct nfsd4_session *ses) { list_del(&ses->se_hash); + spin_lock(&ses->se_client->cl_lock); list_del(&ses->se_perclnt); + spin_unlock(&ses->se_client->cl_lock); } /* must be called under the client_lock */ @@ -925,8 +929,10 @@ unhash_client_locked(struct nfs4_client *clp) mark_client_expired(clp); list_del(&clp->cl_lru); + spin_lock(&clp->cl_lock); list_for_each_entry(ses, &clp->cl_sessions, se_perclnt) list_del_init(&ses->se_hash); + spin_unlock(&clp->cl_lock); } static void |