Commit ade04647 authored Feb 27, 2015 by Trond Myklebust

NFSv4: Ensure we honour NFS_DELEGATION_RETURNING in nfs_inode_set_delegation()

Ensure that nfs_inode_set_delegation() doesn't inadvertently detach a
delegation that is already in the process of being returned.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

parent b04b22f4

fs/nfs/delegation.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -370,6 +370,9 @@ int nfs_inode_set_delegation(struct inode inode, struct rpc_cred cred, struct
		delegation = NULL;
		goto out;
		}
		if (test_and_set_bit(NFS_DELEGATION_RETURNING,
		&old_delegation->flags))
		goto out;
		freeme = nfs_detach_delegation_locked(nfsi,
		old_delegation, clp);
		if (freeme == NULL)