diff options
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/state.h | 45 |
1 files changed, 8 insertions, 37 deletions
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 22b065a55ea0..aa14f06af2df 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -332,25 +332,6 @@ struct nfs4_replay { char rp_ibuf[NFSD4_REPLAY_ISIZE]; }; -/* -* nfs4_stateowner can either be an open_owner, or a lock_owner -* -* so_idhash: stateid_hashtbl[] for open owner, lockstateid_hashtbl[] -* for lock_owner -* so_strhash: ownerstr_hashtbl[] for open_owner, lock_ownerstr_hashtbl[] -* for lock_owner -* so_perclient: nfs4_client->cl_perclient entry - used when nfs4_client -* struct is reaped. -* so_perfilestate: heads the list of nfs4_ol_stateid (either open or lock) -* and is used to ensure no dangling nfs4_ol_stateid references when we -* release a stateowner. -* so_perlockowner: (open) nfs4_ol_stateid->st_perlockowner entry - used when -* close is called to reap associated byte-range locks -* so_close_lru: (open) stateowner is placed on this list instead of being -* reaped (when so_perfilestate is empty) to hold the last close replay. -* reaped by laundramat thread after lease period. -*/ - struct nfs4_stateowner { struct list_head so_strhash; /* hash by op_name */ struct list_head so_stateids; @@ -366,7 +347,14 @@ struct nfs4_stateowner { struct nfs4_openowner { struct nfs4_stateowner oo_owner; /* must be first field */ struct list_head oo_perclient; - struct list_head oo_close_lru; /* tail queue */ + /* + * We keep around openowners a little while after last close, + * which saves clients from having to confirm, and allows us to + * handle close replays if they come soon enough. The close_lru + * is a list of such openowners, to be reaped by the laundromat + * thread eventually if they remain unused: + */ + struct list_head oo_close_lru; struct nfs4_ol_stateid *oo_last_closed_stid; time_t oo_time; /* time of placement on so_close_lru */ #define NFS4_OO_CONFIRMED 1 @@ -443,23 +431,6 @@ static inline struct file *find_any_file(struct nfs4_file *f) return f->fi_fds[O_RDONLY]; } -/* -* nfs4_ol_stateid can either be an open stateid or (eventually) a lock stateid -* -* (open)nfs4_ol_stateid: one per (open)nfs4_stateowner, nfs4_file -* -* st_hash: stateid_hashtbl[] entry or lockstateid_hashtbl entry -* st_perfile: file_hashtbl[] entry. -* st_perfile_state: nfs4_stateowner->so_perfilestate -* st_perlockowner: (open stateid) list of lock nfs4_stateowners -* st_access_bmap: used only for open stateid -* st_deny_bmap: used only for open stateid -* st_openstp: open stateid lock stateid was derived from -* -* XXX: open stateids and lock stateids have diverged sufficiently that -* we should consider defining separate structs for the two cases. -*/ - /* "ol" stands for "Open or Lock". Better suggestions welcome. */ struct nfs4_ol_stateid { struct nfs4_stid st_stid; |