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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>
This commit is contained in:
Trond Myklebust 2010-06-16 09:52:27 -04:00
parent fe74ba3a8d
commit 1055d76d91
2 changed files with 7 additions and 1 deletions
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1
fs/nfs/nfs4_fs.h
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@ -49,6 +49,7 @@ enum nfs4_client_state {
};
enum nfs4_session_state {
NFS4_SESSION_INITING,
NFS4_SESSION_DRAINING,
};

7
fs/nfs/nfs4proc.c
View File

@ -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;