Commit 3482fd90 authored by Paul Moore's avatar Paul Moore Committed by David S. Miller

[NetLabel]: add missing rcu_dereference() calls in the LSM domain mapping hash table

The LSM domain mapping head table pointer was not being referenced via the RCU
safe dereferencing function, rcu_dereference().  This patch adds those missing
calls to the NetLabel code.

This has been tested using recent linux-2.6 git kernels with no visible
regressions.
Signed-off-by: default avatarPaul Moore <paul.moore@hp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4a2a4df7
......@@ -126,7 +126,9 @@ static struct netlbl_dom_map *netlbl_domhsh_search(const char *domain, u32 def)
if (domain != NULL) {
bkt = netlbl_domhsh_hash(domain);
list_for_each_entry_rcu(iter, &netlbl_domhsh->tbl[bkt], list)
list_for_each_entry_rcu(iter,
&rcu_dereference(netlbl_domhsh)->tbl[bkt],
list)
if (iter->valid && strcmp(iter->domain, domain) == 0)
return iter;
}
......@@ -227,7 +229,7 @@ int netlbl_domhsh_add(struct netlbl_dom_map *entry,
spin_lock(&netlbl_domhsh_lock);
if (netlbl_domhsh_search(entry->domain, 0) == NULL)
list_add_tail_rcu(&entry->list,
&netlbl_domhsh->tbl[bkt]);
&rcu_dereference(netlbl_domhsh)->tbl[bkt]);
else
ret_val = -EEXIST;
spin_unlock(&netlbl_domhsh_lock);
......@@ -423,8 +425,8 @@ int netlbl_domhsh_walk(u32 *skip_bkt,
iter_bkt < rcu_dereference(netlbl_domhsh)->size;
iter_bkt++, chain_cnt = 0) {
list_for_each_entry_rcu(iter_entry,
&netlbl_domhsh->tbl[iter_bkt],
list)
&rcu_dereference(netlbl_domhsh)->tbl[iter_bkt],
list)
if (iter_entry->valid) {
if (chain_cnt++ < *skip_chain)
continue;
......
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