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NFS: Fix an NFS client lockdep issue

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There is no reason to be freeing the delegation cred in the rcu callback,
and doing so is resulting in a lockdep complaint that rpc_credcache_lock
is being called from both softirq and non-softirq contexts.

Reported-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
This commit is contained in:
Trond Myklebust 2011-01-27 14:55:39 -05:00
parent c7a360b05b
commit e00b8a2404
1 changed files with 4 additions and 2 deletions
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6
fs/nfs/delegation.c
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@ -23,8 +23,6 @@
static void nfs_do_free_delegation(struct nfs_delegation *delegation) static void nfs_do_free_delegation(struct nfs_delegation *delegation)
{ {
if (delegation->cred)
put_rpccred(delegation->cred);
kfree(delegation); kfree(delegation);
} }
@ -37,6 +35,10 @@ static void nfs_free_delegation_callback(struct rcu_head *head)
static void nfs_free_delegation(struct nfs_delegation *delegation) static void nfs_free_delegation(struct nfs_delegation *delegation)
{ {
if (delegation->cred) {
put_rpccred(delegation->cred);
delegation->cred = NULL;
}
call_rcu(&delegation->rcu, nfs_free_delegation_callback); call_rcu(&delegation->rcu, nfs_free_delegation_callback);
} }