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NFSv4.1 return the LAYOUT for each file with failed DS connection I/O 

First mark the deviceid invalid to prevent any future use. Then fence all
files involved in I/O to a DS with a connection error by sending a
LAYOUTRETURN.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Andy Adamson 2012-06-20 15:03:31 -04:00 committed by Trond Myklebust
parent 8626e4a426
commit 82c7c7a5a9
1 changed files with 1 additions and 2 deletions
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3
fs/nfs/nfs4filelayout.c
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@ -205,9 +205,8 @@ 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(inode);
filelayout_mark_devid_invalid(devid);
_pnfs_return_layout(inode);
rpc_wake_up(&tbl->slot_tbl_waitq);
nfs4_ds_disconnect(clp);
/* fall through */