From: Andy Adamson <andros@xxxxxxxxxx>
Let the MDS know that you are redirecting I/O from pNFS to MDS.
Signed-off-by: Andy Adamson <andros@xxxxxxxxxx>
---
fs/nfs/nfs4filelayout.c | 2 ++
fs/nfs/pnfs.c | 1 +
2 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index a63062d..c6b7c18 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -186,6 +186,8 @@ static int filelayout_async_handle_error(struct rpc_task *task,
case -EPIPE:
dprintk("%s DS connection error %d\n", __func__,
task->tk_status);
+ if (!filelayout_test_devid_invalid(devid))
+ _pnfs_return_layout(state->inode);
filelayout_mark_devid_invalid(devid);
rpc_wake_up(&tbl->slot_tbl_waitq);
/* fall through */
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 78fd7eb..98a7ec8 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -692,6 +692,7 @@ out:
dprintk("<-- %s status: %d\n", __func__, status);
return status;
}
+EXPORT_SYMBOL_GPL(_pnfs_return_layout);
bool pnfs_roc(struct inode *ino)
{
--
1.7.6.4
--
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