When server returns layoutstats stateid error, we should
invalidate client's layout so that next IO can trigger new
layoutget.
Signed-off-by: Peng Tao <tao.peng@xxxxxxxxxxxxxxx>
---
fs/nfs/nfs42proc.c | 29 +++++++++++++++++++++++++++--
1 file changed, 27 insertions(+), 2 deletions(-)
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 6b1ce98..6e81749 100644
--- 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
--
1.8.3.1
--
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