diff options
| author | J. Bruce Fields <bfields@citi.umich.edu> | 2007-11-22 13:54:18 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2008-02-01 16:42:01 -0500 |
| commit | 46f8a64bae11f5c9b15b4401f6e9863281999b66 (patch) | |
| tree | aea712834e9a12a43772de61c1f6af0dc2ea1b57 /fs/nfsd | |
| parent | 24e1c13c93cbdd05e4b7ea921c0050b036555adc (diff) | |
| download | linux-3.10-46f8a64bae11f5c9b15b4401f6e9863281999b66.tar.gz linux-3.10-46f8a64bae11f5c9b15b4401f6e9863281999b66.tar.bz2 linux-3.10-46f8a64bae11f5c9b15b4401f6e9863281999b66.zip | |
nfsd4: probe callback channel only once
Our callback code doesn't actually handle concurrent attempts to probe
the callback channel. Some rethinking of the locking may be required.
However, we can also just move the callback probing to this case. Since
this is the only time a client is "confirmed" (and since that can only
happen once in the lifetime of a client), this ensures we only probe
once.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/nfs4callback.c | 3 | ||||
| -rw-r--r-- | fs/nfsd/nfs4state.c | 3 |
2 files changed, 2 insertions, 4 deletions
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index 9d536a8cb37..a9735a67296 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -395,8 +395,7 @@ nfsd4_probe_callback(struct nfs4_client *clp) }; struct task_struct *t; - if (atomic_read(&cb->cb_set)) - return; + BUG_ON(atomic_read(&clp->cl_callback.cb_set)); /* Initialize address */ memset(&addr, 0, sizeof(addr)); diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 31673cd251c..9d81c7117ae 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -948,6 +948,7 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp, } move_to_confirmed(unconf); conf = unconf; + nfsd4_probe_callback(conf); status = nfs_ok; } } else if ((!conf || (conf && !same_verf(&conf->cl_confirm, &confirm))) @@ -965,8 +966,6 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp, status = nfserr_clid_inuse; } out: - if (!status) - nfsd4_probe_callback(conf); nfs4_unlock_state(); return status; } |