lustre: remove unused declaration

[mirror_ubuntu-bionic-kernel.git] / fs / nfs / nfs42proc.c

diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 6b1ce9825430c7c9659b49ac9bff545b620bd7bb..6e8174930a48eb705979c93fca0d674fba72c0e7 100644 (file)
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -204,6 +204,8 @@ static void
 nfs42_layoutstat_done(struct rpc_task *task, void *calldata)
 {
        struct nfs42_layoutstat_data *data = calldata;
+       struct inode *inode = data->inode;
+       struct pnfs_layout_hdr *lo;
 
        if (!nfs4_sequence_done(task, &data->res.seq_res))
                return;
@@ -211,12 +213,35 @@ nfs42_layoutstat_done(struct rpc_task *task, void *calldata)
        switch (task->tk_status) {
        case 0:
                break;
+       case -NFS4ERR_EXPIRED:
+       case -NFS4ERR_STALE_STATEID:
+       case -NFS4ERR_OLD_STATEID:
+       case -NFS4ERR_BAD_STATEID:
+               spin_lock(&inode->i_lock);
+               lo = NFS_I(inode)->layout;
+               if (lo && nfs4_stateid_match(&data->args.stateid,
+                                            &lo->plh_stateid)) {
+                       LIST_HEAD(head);
+
+                       /*
+                        * Mark the bad layout state as invalid, then retry
+                        * with the current stateid.
+                        */
+                       set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
+                       pnfs_mark_matching_lsegs_invalid(lo, &head, NULL);
+                       spin_unlock(&inode->i_lock);
+                       pnfs_free_lseg_list(&head);
+               } else
+                       spin_unlock(&inode->i_lock);
+               break;
        case -ENOTSUPP:
        case -EOPNOTSUPP:
-               NFS_SERVER(data->inode)->caps &= ~NFS_CAP_LAYOUTSTATS;
+               NFS_SERVER(inode)->caps &= ~NFS_CAP_LAYOUTSTATS;
        default:
-               dprintk("%s server returns %d\n", __func__, task->tk_status);
+               break;
        }
+
+       dprintk("%s server returns %d\n", __func__, task->tk_status);
 }
 
 static void