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

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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>
This commit is contained in:
Trond Myklebust 2020-02-10 14:45:34 -05:00
parent a8b373eefc
commit 194a0dc8e2
1 changed files with 12 additions and 10 deletions
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22
fs/nfs/flexfilelayout/flexfilelayout.c
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@ -1297,21 +1297,23 @@ static void ff_layout_io_track_ds_error(struct pnfs_layout_segment *lseg,
}
}
switch (status) {
case NFS4ERR_DELAY:
case NFS4ERR_GRACE:
return;
default:
break;
}
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)
switch (status) {
case NFS4ERR_DELAY:
case NFS4ERR_GRACE:
break;
case NFS4ERR_NXIO:
ff_layout_mark_ds_unreachable(lseg, idx);
pnfs_error_mark_layout_for_return(lseg->pls_layout->plh_inode, lseg);
/* Fallthrough */
default:
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);
}