static void nfs_access_free_entry(struct nfs_access_entry *entry)
{
- put_rpccred(entry->cred);
+ put_cred(entry->cred);
kfree_rcu(entry, rcu_head);
smp_mb__before_atomic();
atomic_long_dec(&nfs_access_nr_entries);
}
EXPORT_SYMBOL_GPL(nfs_access_zap_cache);
-static struct nfs_access_entry *nfs_access_search_rbtree(struct inode *inode, struct rpc_cred *cred)
+static struct nfs_access_entry *nfs_access_search_rbtree(struct inode *inode, const struct cred *cred)
{
struct rb_node *n = NFS_I(inode)->access_cache.rb_node;
- struct nfs_access_entry *entry;
while (n != NULL) {
- entry = rb_entry(n, struct nfs_access_entry, rb_node);
+ struct nfs_access_entry *entry =
+ rb_entry(n, struct nfs_access_entry, rb_node);
+ int cmp = cred_fscmp(cred, entry->cred);
- if (cred < entry->cred)
+ if (cmp < 0)
n = n->rb_left;
- else if (cred > entry->cred)
+ else if (cmp > 0)
n = n->rb_right;
else
return entry;
return NULL;
}
-static int nfs_access_get_cached(struct inode *inode, struct rpc_cred *cred, struct nfs_access_entry *res, bool may_block)
+static int nfs_access_get_cached(struct inode *inode, const struct cred *cred, struct nfs_access_entry *res, bool may_block)
{
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_access_entry *cache;
return -ENOENT;
}
-static int nfs_access_get_cached_rcu(struct inode *inode, struct rpc_cred *cred, struct nfs_access_entry *res)
+static int nfs_access_get_cached_rcu(struct inode *inode, const struct cred *cred, struct nfs_access_entry *res)
{
/* Only check the most recently returned cache entry,
* but do it without locking.
struct rb_node **p = &root_node->rb_node;
struct rb_node *parent = NULL;
struct nfs_access_entry *entry;
+ int cmp;
spin_lock(&inode->i_lock);
while (*p != NULL) {
parent = *p;
entry = rb_entry(parent, struct nfs_access_entry, rb_node);
+ cmp = cred_fscmp(set->cred, entry->cred);
- if (set->cred < entry->cred)
+ if (cmp < 0)
p = &parent->rb_left;
- else if (set->cred > entry->cred)
+ else if (cmp > 0)
p = &parent->rb_right;
else
goto found;
if (cache == NULL)
return;
RB_CLEAR_NODE(&cache->rb_node);
- cache->cred = get_rpccred(set->cred);
+ cache->cred = get_cred(set->cred);
cache->mask = set->mask;
/* The above field assignments must be visible
}
EXPORT_SYMBOL_GPL(nfs_access_set_mask);
-static int nfs_do_access(struct inode *inode, struct rpc_cred *cred, int mask)
+static int nfs_do_access(struct inode *inode, const struct cred *cred, int mask)
{
struct nfs_access_entry cache;
bool may_block = (mask & MAY_NOT_BLOCK) == 0;
return mask;
}
-int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags)
+int nfs_may_open(struct inode *inode, const struct cred *cred, int openflags)
{
return nfs_do_access(inode, cred, nfs_open_permission_mask(openflags));
}
int nfs_permission(struct inode *inode, int mask)
{
- struct rpc_cred *cred;
+ const struct cred *cred = current_cred();
int res = 0;
nfs_inc_stats(inode, NFSIOS_VFSACCESS);
/* Always try fast lookups first */
rcu_read_lock();
- cred = rpc_lookup_cred_nonblock();
- if (!IS_ERR(cred))
- res = nfs_do_access(inode, cred, mask|MAY_NOT_BLOCK);
- else
- res = PTR_ERR(cred);
+ res = nfs_do_access(inode, cred, mask|MAY_NOT_BLOCK);
rcu_read_unlock();
if (res == -ECHILD && !(mask & MAY_NOT_BLOCK)) {
/* Fast lookup failed, try the slow way */
- cred = rpc_lookup_cred();
- if (!IS_ERR(cred)) {
- res = nfs_do_access(inode, cred, mask);
- put_rpccred(cred);
- } else
- res = PTR_ERR(cred);
+ res = nfs_do_access(inode, cred, mask);
}
out:
if (!res && (mask & MAY_EXEC))
.access = entry->mask,
};
struct nfs3_accessres res;
+ struct auth_cred acred = {
+ .cred = entry->cred,
+ };
struct rpc_message msg = {
.rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS],
.rpc_argp = &arg,
.rpc_resp = &res,
- .rpc_cred = entry->cred,
+ .rpc_cred = rpc_lookup_generic_cred(&acred, 0, GFP_NOFS),
};
int status = -ENOMEM;
dprintk("NFS call access\n");
+ if (!msg.rpc_cred)
+ goto out;
res.fattr = nfs_alloc_fattr();
if (res.fattr == NULL)
goto out;
nfs_access_set_mask(entry, res.access);
nfs_free_fattr(res.fattr);
out:
+ if (msg.rpc_cred)
+ put_rpccred(msg.rpc_cred);
dprintk("NFS reply access: %d\n", status);
return status;
}
rcu_read_unlock();
nfs_release_seqid(opendata->o_arg.seqid);
if (!opendata->is_recover) {
- ret = nfs_may_open(state->inode, state->owner->so_cred, open_mode);
+ ret = nfs_may_open(state->inode, state->owner->so_cred->cr_cred, open_mode);
if (ret != 0)
goto out;
}
} else if ((fmode & FMODE_READ) && !opendata->file_created)
mask = NFS4_ACCESS_READ;
- cache.cred = cred;
+ cache.cred = cred->cr_cred;
nfs_access_set_mask(&cache, opendata->o_res.access_result);
nfs_access_add_cache(state->inode, &cache);
struct nfs4_accessres res = {
.server = server,
};
+ struct auth_cred acred = {
+ .cred = entry->cred,
+ };
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_ACCESS],
.rpc_argp = &args,
.rpc_resp = &res,
- .rpc_cred = entry->cred,
+ .rpc_cred = rpc_lookup_generic_cred(&acred, 0, GFP_NOFS),
};
int status = 0;
+ if (!msg.rpc_cred)
+ return -ENOMEM;
if (!nfs4_have_delegation(inode, FMODE_READ)) {
res.fattr = nfs_alloc_fattr();
- if (res.fattr == NULL)
+ if (res.fattr == NULL) {
+ put_rpccred(msg.rpc_cred);
return -ENOMEM;
+ }
args.bitmask = server->cache_consistency_bitmask;
}
nfs_refresh_inode(inode, res.fattr);
}
nfs_free_fattr(res.fattr);
+ put_rpccred(msg.rpc_cred);
return status;
}