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authorAndy Adamson <andros@netapp.com>2009-04-03 08:27:43 +0300
committerJ. Bruce Fields <bfields@citi.umich.edu>2009-04-03 17:41:13 -0700
commit7116ed6b9973021ff43edeb10f4cb834db94000f (patch)
treefb47a0d182cbf2afb87f482ac03d1a1763f8ee3b /include/linux/nfsd/state.h
parent10add806c38c022d18af48f3ec28c91b4eaf7bb3 (diff)
nfsd41: sessions basic data types
This patch provides basic data structures representing the nfs41 sessions and slots, plus helpers for keeping a reference count on the session and freeing it. Note that our server only support a headerpadsz of 0 and it ignores backchannel attributes at the moment. Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfsd41: remove headerpadsz from channel attributes] [nfsd41: embed nfsd4_channel in nfsd4_session] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfsd41: use bool inuse for slot state] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfsd41 remove sl_session from nfsd4_slot] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'include/linux/nfsd/state.h')
-rw-r--r--include/linux/nfsd/state.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
index a6e4a00fa39..baea7f1fdb4 100644
--- a/include/linux/nfsd/state.h
+++ b/include/linux/nfsd/state.h
@@ -99,6 +99,39 @@ struct nfs4_callback {
struct rpc_clnt * cb_client;
};
+struct nfsd4_slot {
+ bool sl_inuse;
+ u32 sl_seqid;
+};
+
+struct nfsd4_session {
+ struct kref se_ref;
+ struct list_head se_hash; /* hash by sessionid */
+ struct list_head se_perclnt;
+ u32 se_flags;
+ struct nfs4_client *se_client; /* for expire_client */
+ struct nfs4_sessionid se_sessionid;
+ u32 se_fmaxreq_sz;
+ u32 se_fmaxresp_sz;
+ u32 se_fmaxresp_cached;
+ u32 se_fmaxops;
+ u32 se_fnumslots;
+ struct nfsd4_slot *se_slots; /* forward channel slots */
+};
+
+static inline void
+nfsd4_put_session(struct nfsd4_session *ses)
+{
+ extern void free_session(struct kref *kref);
+ kref_put(&ses->se_ref, free_session);
+}
+
+static inline void
+nfsd4_get_session(struct nfsd4_session *ses)
+{
+ kref_get(&ses->se_ref);
+}
+
#define HEXDIR_LEN 33 /* hex version of 16 byte md5 of cl_name plus '\0' */
/*