diff options
| author | Bryan Schumaker <bjschuma@netapp.com> | 2011-07-13 10:50:48 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2011-07-15 18:58:48 -0400 |
| commit | 17456804546b78a1c13d2b934c8f50bbde141a38 (patch) | |
| tree | d9585ae98e98101830068c9ab29556795a162942 /fs/nfsd/nfs4state.c | |
| parent | e1ca12dfb1be7fe8b82ca723a9b511f7d808bf81 (diff) | |
NFSD: Added TEST_STATEID operation
This operation is used by the client to check the validity of a list of
stateids.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4state.c')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 55c36e267b7..12244cee168 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -37,6 +37,7 @@ #include <linux/slab.h> #include <linux/namei.h> #include <linux/swap.h> +#include <linux/pagemap.h> #include <linux/sunrpc/svcauth_gss.h> #include <linux/sunrpc/clnt.h> #include "xdr4.h" @@ -3145,6 +3146,32 @@ static int is_open_stateid(struct nfs4_stateid *stateid) return stateid->st_openstp == NULL; } +__be32 nfs4_validate_stateid(stateid_t *stateid, int flags) +{ + struct nfs4_stateid *stp = NULL; + __be32 status = nfserr_stale_stateid; + + if (STALE_STATEID(stateid)) + goto out; + + status = nfserr_expired; + stp = search_for_stateid(stateid); + if (!stp) + goto out; + status = nfserr_bad_stateid; + + if (!stp->st_stateowner->so_confirmed) + goto out; + + status = check_stateid_generation(stateid, &stp->st_stateid, flags); + if (status) + goto out; + + status = nfs_ok; +out: + return status; +} + /* * Checks for stateid operations */ @@ -3243,6 +3270,17 @@ nfsd4_free_lock_stateid(struct nfs4_stateid *stp) } /* + * Test if the stateid is valid + */ +__be32 +nfsd4_test_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, + struct nfsd4_test_stateid *test_stateid) +{ + test_stateid->ts_has_session = nfsd4_has_session(cstate); + return nfs_ok; +} + +/* * Free a state id */ __be32 |