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| author | J. Bruce Fields <bfields@redhat.com> | 2011-09-23 17:01:19 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2011-09-26 17:35:28 -0400 |
| commit | 38c2f4b12a455cb3a108fd5c79a10df2ba3ec9a7 (patch) | |
| tree | 125aa30a29a2863b448d66b2b0d31d4f65db0533 /fs/nfsd/state.h | |
| parent | 36279ac10c3d69372af875f1affafd375db687a9 (diff) | |
| download | linux-38c2f4b12a455cb3a108fd5c79a10df2ba3ec9a7.tar.gz | |
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 <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/state.h')
| -rw-r--r-- | fs/nfsd/state.h | 4 |
1 files changed, 3 insertions, 1 deletions
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 <linux/idr.h> #include <linux/sunrpc/svc_xprt.h> #include <linux/nfsd/nfsfh.h> #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 */ |