diff options
Diffstat (limited to 'fs/nfsd/state.h')
| -rw-r--r-- | fs/nfsd/state.h | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 2712042a66b1..9d3be371240a 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -463,17 +463,24 @@ static inline struct nfs4_lockowner * lockowner(struct nfs4_stateowner *so) /* * nfs4_file: a file opened by some number of (open) nfs4_stateowners. * - * These objects are global. nfsd only keeps one instance of a nfs4_file per - * inode (though it may keep multiple file descriptors open per inode). These - * are tracked in the file_hashtbl which is protected by the state_lock - * spinlock. + * These objects are global. nfsd keeps one instance of a nfs4_file per + * filehandle (though it may keep multiple file descriptors for each). Each + * inode can have multiple filehandles associated with it, so there is + * (potentially) a many to one relationship between this struct and struct + * inode. + * + * These are hashed by filehandle in the file_hashtbl, which is protected by + * the global state_lock spinlock. */ struct nfs4_file { atomic_t fi_ref; spinlock_t fi_lock; - struct hlist_node fi_hash; /* hash by "struct inode *" */ + struct hlist_node fi_hash; /* hash on fi_fhandle */ struct list_head fi_stateids; - struct list_head fi_delegations; + union { + struct list_head fi_delegations; + struct rcu_head fi_rcu; + }; /* One each for O_RDONLY, O_WRONLY, O_RDWR: */ struct file * fi_fds[3]; /* |