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NFSv4.1: Fix a refcounting issue in the pNFS device id cache 

When we add something to the global device id cache, we need to bump the
reference count, so that the cache itself holds a reference.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2011-06-14 12:07:38 -04:00
parent c9c30dd5f7
commit 1d92a08da2
1 changed files with 1 additions and 0 deletions
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fs/nfs/pnfs_dev.c
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@ -209,6 +209,7 @@ nfs4_insert_deviceid_node(struct nfs4_deviceid_node *new)
hlist_add_head_rcu(&new->node, &nfs4_deviceid_cache[hash]); hlist_add_head_rcu(&new->node, &nfs4_deviceid_cache[hash]);
spin_unlock(&nfs4_deviceid_lock); spin_unlock(&nfs4_deviceid_lock);
atomic_inc(&new->ref);
return new; return new;
} }