pNFS/flexfiles: Report DELAY and GRACE errors from the DS to the server

Ensure that if the DS is returning too many DELAY and GRACE errors, we
also report that to the MDS through the layouterror mechanism.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index bb9148b8316631f32f8771b6cb6c3897534027df..8b8171b488938a503dcb5abfbc6f51a07da8f805 100644 (file)
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1297,21 +1297,23 @@ static void ff_layout_io_track_ds_error(struct pnfs_layout_segment *lseg,
                }
        }
 
+       mirror = FF_LAYOUT_COMP(lseg, idx);
+       err = ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout),
+                                      mirror, offset, length, status, opnum,
+                                      GFP_NOIO);
+
        switch (status) {
        case NFS4ERR_DELAY:
        case NFS4ERR_GRACE:
-               return;
-       default:
                break;
+       case NFS4ERR_NXIO:
+               ff_layout_mark_ds_unreachable(lseg, idx);
+               /* Fallthrough */
+       default:
+               pnfs_error_mark_layout_for_return(lseg->pls_layout->plh_inode,
+                                                 lseg);
        }
 
-       mirror = FF_LAYOUT_COMP(lseg, idx);
-       err = ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout),
-                                      mirror, offset, length, status, opnum,
-                                      GFP_NOIO);
-       if (status == NFS4ERR_NXIO)
-               ff_layout_mark_ds_unreachable(lseg, idx);
-       pnfs_error_mark_layout_for_return(lseg->pls_layout->plh_inode, lseg);
        dprintk("%s: err %d op %d status %u\n", __func__, err, opnum, status);
 }