Commit 194a0dc8 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

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: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent a8b373ee

fs/nfs/flexfilelayout/flexfilelayout.c

+11 −9
Original line number Diff line number Diff line
@@ -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);

}

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