| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.19 160/177] NFSv4: Dont call put_rpccred() under the rcu_read_lock() | Date | Mon, 16 Mar 2015 15:09:27 +0100 |
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3.19-stable review patch. If anyone has any objections, please let me know.
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From: Trond Myklebust <trond.myklebust@primarydata.com>
commit 7c0af9ffb7bb4e5355470fa60b3eb711ddf226fa upstream.
put_rpccred() can sleep.
Fixes: 8f649c3762547 ("NFSv4: Fix the locking in nfs_inode_reclaim_delegation()") Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/nfs/delegation.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -177,8 +177,8 @@ void nfs_inode_reclaim_delegation(struct &delegation->flags); NFS_I(inode)->delegation_state = delegation->type; spin_unlock(&delegation->lock); - put_rpccred(oldcred); rcu_read_unlock(); + put_rpccred(oldcred); trace_nfs4_reclaim_delegation(inode, res->delegation_type); } else { /* We appear to have raced with a delegation return. */
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