Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b3f9e723 authored by Trond Myklebust's avatar Trond Myklebust Committed by Anna Schumaker
Browse files

NFSv4: Don't report revoked delegations as valid in nfs_have_delegation() 



If the delegation is revoked, then it can't be used for caching.

Fixes: 869f9dfa ("NFSv4: Fix races between nfs_remove_bad_delegation()...")
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
Cc: stable@vger.kernel.org # v3.19+
Tested-by: default avatarOleg Drokin <green@linuxhacker.ru>
Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
parent 7dc72d5f

fs/nfs/delegation.c

+1 −0
Original line number Diff line number Diff line
@@ -51,6 +51,7 @@ nfs4_do_check_delegation(struct inode *inode, fmode_t flags, bool mark) 
	rcu_read_lock();

	delegation = rcu_dereference(NFS_I(inode)->delegation);

	if (delegation != NULL && (delegation->type & flags) == flags &&

	    !test_bit(NFS_DELEGATION_REVOKED, &delegation->flags) &&

	    !test_bit(NFS_DELEGATION_RETURNING, &delegation->flags)) {

		if (mark)

			nfs_mark_delegation_referenced(delegation);