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authorTrond Myklebust <Trond.Myklebust@netapp.com>2008-12-23 23:21:38 +0300
committerTrond Myklebust <Trond.Myklebust@netapp.com>2008-12-23 23:21:38 +0300
commit343104308a33c4f1e23c8e841ede95e97b870842 (patch)
treee7772538627a0a2176bd23cd3b2f1acbacd24592 /fs/nfs/delegation.h
parent0cb2659b818eca99235e17c04291cfa9985c14f7 (diff)
downloadlinux-343104308a33c4f1e23c8e841ede95e97b870842.tar.xz
NFSv4: Fix up another delegation related race
When we can update_open_stateid(), we need to be certain that we don't race with a delegation return. While we could do this by grabbing the nfs_client->cl_lock, a dedicated spin lock in the delegation structure will scale better. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/delegation.h')
-rw-r--r--fs/nfs/delegation.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h
index f1c5e2a5d88e..8299c6220e95 100644
--- a/fs/nfs/delegation.h
+++ b/fs/nfs/delegation.h
@@ -22,6 +22,7 @@ struct nfs_delegation {
long flags;
loff_t maxsize;
__u64 change_attr;
+ spinlock_t lock;
struct rcu_head rcu;
};