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nfsd: Remove callback_cred 

Clean up: The global callback_cred is no longer used, so it can be
removed.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Chuck Lever 2018-08-16 12:06:09 -04:00 committed by J. Bruce Fields
parent cb25e7b293
commit a26dd64f54
3 changed files with 2 additions and 30 deletions
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20
fs/nfsd/nfs4callback.c
View File

@ -746,26 +746,6 @@ static int max_cb_time(struct net *net)
return max(nn->nfsd4_lease/10, (time_t)1) * HZ;
}
static struct rpc_cred *callback_cred;
int set_callback_cred(void)
{
if (callback_cred)
return 0;
callback_cred = rpc_lookup_machine_cred("nfs");
if (!callback_cred)
return -ENOMEM;
return 0;
}
void cleanup_callback_cred(void)
{
if (callback_cred) {
put_rpccred(callback_cred);
callback_cred = NULL;
}
}
static struct rpc_cred *get_backchannel_cred(struct nfs4_client *clp, struct rpc_clnt *client, struct nfsd4_session *ses)
{
if (clp->cl_minorversion == 0) {

10
fs/nfsd/nfs4state.c
View File

@ -7231,14 +7231,10 @@ nfs4_state_start(void)
{
int ret;
ret = set_callback_cred();
if (ret)
return ret;
laundry_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, "nfsd4");
if (laundry_wq == NULL) {
ret = -ENOMEM;
goto out_cleanup_cred;
goto out;
}
ret = nfsd4_create_callback_queue();
if (ret)
@ -7249,8 +7245,7 @@ nfs4_state_start(void)
out_free_laundry:
destroy_workqueue(laundry_wq);
out_cleanup_cred:
cleanup_callback_cred();
out:
return ret;
}
@ -7287,7 +7282,6 @@ nfs4_state_shutdown(void)
{
destroy_workqueue(laundry_wq);
nfsd4_destroy_callback_queue();
cleanup_callback_cred();
}
static void

2
fs/nfsd/state.h
View File

@ -617,8 +617,6 @@ extern struct nfs4_client_reclaim *nfsd4_find_reclaim_client(const char *recdir,
struct nfsd_net *nn);
extern __be32 nfs4_check_open_reclaim(clientid_t *clid,
struct nfsd4_compound_state *cstate, struct nfsd_net *nn);
extern int set_callback_cred(void);
extern void cleanup_callback_cred(void);
extern void nfsd4_probe_callback(struct nfs4_client *clp);
extern void nfsd4_probe_callback_sync(struct nfs4_client *clp);
extern void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *);