From 38c2f4b12a455cb3a108fd5c79a10df2ba3ec9a7 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Fri, 23 Sep 2011 17:01:19 -0400 Subject: nfsd4: look up stateid's per clientid Use a separate stateid idr per client, and lookup a stateid by first finding the client, then looking up the stateid relative to that client. Also some minor refactoring. This allows us to improve error returns: we can return expired when the clientid is not found and bad_stateid when the clientid is found but not the stateid, as opposed to returning expired for both cases. I hope this will also help to replace the state lock mostly by a per-client lock, but that hasn't been done yet. Signed-off-by: J. Bruce Fields --- fs/nfsd/state.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'fs/nfsd/state.h') diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 55a4d6a108a2..13f6f9f5ceec 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -35,6 +35,7 @@ #ifndef _NFSD4_STATE_H #define _NFSD4_STATE_H +#include #include #include #include "nfsfh.h" @@ -231,6 +232,7 @@ struct nfs4_client { struct list_head cl_idhash; /* hash by cl_clientid.id */ struct list_head cl_strhash; /* hash by cl_name */ struct list_head cl_openowners; + struct idr cl_stateids; /* stateid lookup */ struct list_head cl_delegations; struct list_head cl_lru; /* tail queue */ struct xdr_netobj cl_name; /* id generated by client */ @@ -508,7 +510,7 @@ extern void nfsd4_recdir_purge_old(void); extern int nfsd4_create_clid_dir(struct nfs4_client *clp); extern void nfsd4_remove_clid_dir(struct nfs4_client *clp); extern void release_session_client(struct nfsd4_session *); -extern __be32 nfs4_validate_stateid(stateid_t *); +extern __be32 nfs4_validate_stateid(struct nfs4_client *, stateid_t *); extern void nfsd4_purge_closed_stateid(struct nfs4_stateowner *); #endif /* NFSD4_STATE_H */ -- cgit v1.2.3-73-gaa49b