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authorTrond Myklebust <Trond.Myklebust@netapp.com>2011-06-14 20:07:38 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2011-06-15 19:24:29 +0400
commit1d92a08da23848a38eece4df7eaa4e8ec0e6c699 (patch)
tree17da4ebe1aba9da32990a7fa5bbe3f2ff6f60941 /fs/nfs
parentc9c30dd5f73dccaa326a54dfcf490316946aea87 (diff)
downloadlinux-1d92a08da23848a38eece4df7eaa4e8ec0e6c699.tar.xz
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>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/pnfs_dev.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfs/pnfs_dev.c b/fs/nfs/pnfs_dev.c
index 5944d4b369a2..f0f8e1e22f6c 100644
--- a/fs/nfs/pnfs_dev.c
+++ b/fs/nfs/pnfs_dev.c
@@ -209,6 +209,7 @@ nfs4_insert_deviceid_node(struct nfs4_deviceid_node *new)
hlist_add_head_rcu(&new->node, &nfs4_deviceid_cache[hash]);
spin_unlock(&nfs4_deviceid_lock);
+ atomic_inc(&new->ref);
return new;
}