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authorTrond Myklebust <Trond.Myklebust@netapp.com>2010-06-16 09:52:27 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-06-22 13:24:03 -0400
commit1055d76d91e69c8ea9fb748db4d4a53b6384df31 (patch)
tree4bcb3c6427b48eadc5e0b226d5b8522f4dd32ee9 /fs/nfs
parentfe74ba3a8db003410e48863a5cafa6ac90674540 (diff)
downloadop-kernel-dev-1055d76d91e69c8ea9fb748db4d4a53b6384df31.zip
op-kernel-dev-1055d76d91e69c8ea9fb748db4d4a53b6384df31.tar.gz
NFSv4.1: There is no need to init the session more than once...
Set up a flag to ensure that is indeed the case. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs4_fs.h1
-rw-r--r--fs/nfs/nfs4proc.c7
2 files changed, 7 insertions, 1 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 04eff16..a986f13 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -49,6 +49,7 @@ enum nfs4_client_state {
};
enum nfs4_session_state {
+ NFS4_SESSION_INITING,
NFS4_SESSION_DRAINING,
};
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index b4132fe..243d6c7 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4807,6 +4807,8 @@ struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp)
spin_lock_init(&tbl->slot_tbl_lock);
rpc_init_wait_queue(&tbl->slot_tbl_waitq, "BackChannel Slot table");
+ session->session_state = 1<<NFS4_SESSION_INITING;
+
session->clp = clp;
return session;
}
@@ -5023,6 +5025,10 @@ int nfs4_init_session(struct nfs_server *server)
if (!nfs4_has_session(clp))
return 0;
+ session = clp->cl_session;
+ if (!test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state))
+ return 0;
+
rsize = server->rsize;
if (rsize == 0)
rsize = NFS_MAX_FILE_IO_SIZE;
@@ -5030,7 +5036,6 @@ int nfs4_init_session(struct nfs_server *server)
if (wsize == 0)
wsize = NFS_MAX_FILE_IO_SIZE;
- session = clp->cl_session;
session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
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