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Subject[PATCH 2/2] NFS: Limit the number of retries
Date
  We can't wait forever, even if the state
is always delayed.

Signed-off-by: Wenle Chen <chenwenle@huawei.com>
---
fs/nfs/nfs4proc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index f6b5dc792b33..bb2316bf13f6 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7390,15 +7390,17 @@ int nfs4_lock_delegation_recall(struct file_lock *fl, struct nfs4_state *state,
{
struct nfs_server *server = NFS_SERVER(state->inode);
int err;
+ int retry = 3;

err = nfs4_set_lock_state(state, fl);
if (err != 0)
return err;
do {
err = _nfs4_do_setlk(state, F_SETLK, fl, NFS_LOCK_NEW);
- if (err != -NFS4ERR_DELAY)
+ if (err != -NFS4ERR_DELAY || retry == 0)
break;
ssleep(1);
+ --retry;
} while (1);
return nfs4_handle_delegation_recall_error(server, state, stateid, fl, err);
}
--
2.29.1
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