nfsd4: move some of nfs4_stateid into a separate structure
We want delegations to share more with open/lock stateid's, so first
we'll pull out some of the common stuff we want to share.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index ef949eb..d7fffab 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -328,10 +328,10 @@
* for lock_owner
* so_perclient: nfs4_client->cl_perclient entry - used when nfs4_client
* struct is reaped.
-* so_perfilestate: heads the list of nfs4_stateid (either open or lock)
-* and is used to ensure no dangling nfs4_stateid references when we
+* 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_stateid->st_perlockowner entry - used when
+* 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.
@@ -430,9 +430,9 @@
}
/*
-* nfs4_stateid can either be an open stateid or (eventually) a lock stateid
+* nfs4_ol_stateid can either be an open stateid or (eventually) a lock stateid
*
-* (open)nfs4_stateid: one per (open)nfs4_stateowner, nfs4_file
+* (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.
@@ -446,22 +446,31 @@
* we should consider defining separate structs for the two cases.
*/
-struct nfs4_stateid {
+struct nfs4_stid {
#define NFS4_OPEN_STID 1
#define NFS4_LOCK_STID 2
- char st_type;
- struct list_head st_hash;
+ char sc_type;
+ struct list_head sc_hash;
+ stateid_t sc_stateid;
+};
+
+struct nfs4_ol_stateid {
+ struct nfs4_stid st_stid;
struct list_head st_perfile;
struct list_head st_perstateowner;
struct list_head st_lockowners;
struct nfs4_stateowner * st_stateowner;
struct nfs4_file * st_file;
- stateid_t st_stateid;
unsigned long st_access_bmap;
unsigned long st_deny_bmap;
- struct nfs4_stateid * st_openstp;
+ struct nfs4_ol_stateid * st_openstp;
};
+static inline struct nfs4_ol_stateid *openlockstateid(struct nfs4_stid *s)
+{
+ return container_of(s, struct nfs4_ol_stateid, st_stid);
+}
+
/* flags for preprocess_seqid_op() */
#define RD_STATE 0x00000010
#define WR_STATE 0x00000020