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NFSv4.1 send layoutreturn to fence disconnected data server

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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>
This commit is contained in:
Andy Adamson 2012-04-27 17:53:50 -04:00 committed by Trond Myklebust
parent 671fb89695
commit 0a57cdac3f
2 changed files with 3 additions and 0 deletions
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2
fs/nfs/nfs4filelayout.c
View File

@ -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 */

1
fs/nfs/pnfs.c
View File

@ -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)
{