diff mbox series

[04/14] NFSv4: Delegation recalls should not find revoked delegations

Message ID 20191023235600.10880-5-trond.myklebust@hammerspace.com (mailing list archive)
State New, archived
Headers show
Series Delegation bugfixes | expand

Commit Message

Trond Myklebust Oct. 23, 2019, 11:55 p.m. UTC 
If we're processsing a delegation recall, ignore the delegations that
have already been revoked or returned.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
---
 fs/nfs/delegation.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 5f3eea926af5..4bc40c27141b 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -830,7 +830,7 @@  int nfs_async_inode_return_delegation(struct inode *inode,
 
 	rcu_read_lock();
 	delegation = rcu_dereference(NFS_I(inode)->delegation);
-	if (delegation == NULL)
+	if (!nfs4_is_valid_delegation(delegation, FMODE_READ))
 		goto out_enoent;
 	if (stateid != NULL &&
 	    !clp->cl_mvops->match_stateid(&delegation->stateid, stateid))
@@ -855,6 +855,7 @@  nfs_delegation_find_inode_server(struct nfs_server *server,
 	list_for_each_entry_rcu(delegation, &server->delegations, super_list) {
 		spin_lock(&delegation->lock);
 		if (delegation->inode != NULL &&
+		    !test_bit(NFS_DELEGATION_REVOKED, &delegation->flags) &&
 		    nfs_compare_fh(fhandle, &NFS_I(delegation->inode)->fh) == 0) {
 			freeme = igrab(delegation->inode);
 			if (freeme && nfs_sb_active(freeme->i_sb))