If we get a bad-stateid-type of error when we send OPEN with delegate_cur
to return currently held delegation, we shouldn't be trying to reclaim locks
associated with that delegation state_id because we don't have an
open_stateid to be used for the LOCK operation. Thus, we should
return an error from the nfs4_open_delegation_recall() in that case.
Furthermore, if an error occurs the delegation code will call
nfs_abort_delegation_return() which sets again the NFS4CLNT_DELEGRETURN
flags in the state and it leads the state manager to into an infinite loop
for trying to reclaim the delegated state.
Signed-off-by: Olga Kornievskaia <kolga@xxxxxxxxxx>
---
fs/nfs/delegation.c | 5 +++--
fs/nfs/nfs4proc.c | 2 +-
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 5853f53..8016d89 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -394,7 +394,7 @@ static int nfs_end_delegation_return(struct inode *inode, struct nfs_delegation
err = nfs4_wait_clnt_recover(clp);
} while (err == 0);
- if (err) {
+ if (err && err != -EIO) {
nfs_abort_delegation_return(delegation, clp);
goto out;
}
@@ -458,7 +458,8 @@ restart:
iput(inode);
if (!err)
goto restart;
- set_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state);
+ if (err != -EIO)
+ set_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state);
return err;
}
}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 5aa55c1..6871055 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1655,7 +1655,7 @@ static int nfs4_handle_delegation_recall_error(struct nfs_server *server, struct
nfs_inode_find_state_and_recover(state->inode,
stateid);
nfs4_schedule_stateid_recovery(server, state);
- return 0;
+ return -EIO;
case -NFS4ERR_DELAY:
case -NFS4ERR_GRACE:
set_bit(NFS_DELEGATED_STATE, &state->flags);
--
1.7.1
--
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