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NFS: Never use user credentials for lease renewal

Bladeren bron 
Never try to use a non-UID 0 user credential for lease management,
as that credential can change out from under us.  The server will
block NFSv4 lease recovery with NFS4ERR_CLID_INUSE.

Since the mechanism to acquire a credential for lease management
is now the same for all minor versions, replace the minor version-
specific callout with a single function.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever
2013-07-24 12:28:37 -04:00
gecommit door Trond Myklebust
bovenliggende d688f7b8f6
commit 73d8bde5e4
4 gewijzigde bestanden met toevoegingen van 11 en 58 verwijderingen
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6
fs/nfs/nfs4proc.c
Bestand weergeven

@@ -6069,7 +6069,7 @@ int nfs4_destroy_clientid(struct nfs_client *clp)
goto out;
if (clp->cl_preserve_clid)
goto out;
cred = nfs4_get_exchange_id_cred(clp);
cred = nfs4_get_clid_cred(clp);
ret = nfs4_proc_destroy_clientid(clp, cred);
if (cred)
put_rpccred(cred);
@@ -7363,7 +7363,6 @@ static const struct nfs4_state_recovery_ops nfs40_reboot_recovery_ops = {
.recover_open = nfs4_open_reclaim,
.recover_lock = nfs4_lock_reclaim,
.establish_clid = nfs4_init_clientid,
.get_clid_cred = nfs4_get_setclientid_cred,
.detect_trunking = nfs40_discover_server_trunking,
};
@@ -7374,7 +7373,6 @@ static const struct nfs4_state_recovery_ops nfs41_reboot_recovery_ops = {
.recover_open = nfs4_open_reclaim,
.recover_lock = nfs4_lock_reclaim,
.establish_clid = nfs41_init_clientid,
.get_clid_cred = nfs4_get_exchange_id_cred,
.reclaim_complete = nfs41_proc_reclaim_complete,
.detect_trunking = nfs41_discover_server_trunking,
};
@@ -7386,7 +7384,6 @@ static const struct nfs4_state_recovery_ops nfs40_nograce_recovery_ops = {
.recover_open = nfs4_open_expired,
.recover_lock = nfs4_lock_expired,
.establish_clid = nfs4_init_clientid,
.get_clid_cred = nfs4_get_setclientid_cred,
};
#if defined(CONFIG_NFS_V4_1)
@@ -7396,7 +7393,6 @@ static const struct nfs4_state_recovery_ops nfs41_nograce_recovery_ops = {
.recover_open = nfs41_open_expired,
.recover_lock = nfs41_lock_expired,
.establish_clid = nfs41_init_clientid,
.get_clid_cred = nfs4_get_exchange_id_cred,
};
#endif /* CONFIG_NFS_V4_1 */