diff options
| -rw-r--r-- | fs/nfsd/nfs4state.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index ecb803d7c966..98342d262771 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -86,6 +86,11 @@ static void nfs4_free_ol_stateid(struct nfs4_stid *stid); */ static DEFINE_SPINLOCK(state_lock); +enum nfsd4_st_mutex_lock_subclass { + OPEN_STATEID_MUTEX = 0, + LOCK_STATEID_MUTEX = 1, +}; + /* * A waitqueue for all in-progress 4.0 CLOSE operations that are waiting for * the refcount on the open stateid to drop. @@ -3600,7 +3605,7 @@ nfsd4_lock_ol_stateid(struct nfs4_ol_stateid *stp) { __be32 ret; - mutex_lock(&stp->st_mutex); + mutex_lock_nested(&stp->st_mutex, LOCK_STATEID_MUTEX); ret = nfsd4_verify_open_stid(&stp->st_stid); if (ret != nfs_ok) mutex_unlock(&stp->st_mutex); @@ -3664,7 +3669,7 @@ init_open_stateid(struct nfs4_file *fp, struct nfsd4_open *open) stp = open->op_stp; /* We are moving these outside of the spinlocks to avoid the warnings */ mutex_init(&stp->st_mutex); - mutex_lock(&stp->st_mutex); + mutex_lock_nested(&stp->st_mutex, OPEN_STATEID_MUTEX); retry: spin_lock(&oo->oo_owner.so_client->cl_lock); @@ -5741,7 +5746,7 @@ init_lock_stateid(struct nfs4_ol_stateid *stp, struct nfs4_lockowner *lo, struct nfs4_ol_stateid *retstp; mutex_init(&stp->st_mutex); - mutex_lock(&stp->st_mutex); + mutex_lock_nested(&stp->st_mutex, OPEN_STATEID_MUTEX); retry: spin_lock(&clp->cl_lock); spin_lock(&fp->fi_lock); |