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authorAndy Adamson <andros@netapp.com>2012-04-27 21:53:50 (GMT)
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-05-19 21:55:31 (GMT)
commit0a57cdac3fb9d249f4fbbc745c01b9292ef8c1b7 (patch)
tree8fb264e116c6c29ae0ed38f8c8065074bc288f55 /fs
parent671fb89695fee0c70a969371efd38ed30be76a8a (diff)
downloadlinux-0a57cdac3fb9d249f4fbbc745c01b9292ef8c1b7.tar.xz
NFSv4.1 send layoutreturn to fence disconnected data server
Let the MDS know that you are redirecting I/O from pNFS to MDS. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/nfs4filelayout.c2
-rw-r--r--fs/nfs/pnfs.c1
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 16cc194..e48017f 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)
{