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authorOlga Kornievskaia <kolga@netapp.com>2017-06-23 10:26:58 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2017-07-13 15:59:57 -0400
commita0bc01e0f1fa39702b5244b3bac699bea0d4f413 (patch)
treedc1cf3bd20e26f401c796b9dca8d78104ee25090 /fs/nfs/filelayout
parent4cd1ec95bdec8aedb280ca0f244ededb76f747ab (diff)
downloadlinux-a0bc01e0f1fa39702b5244b3bac699bea0d4f413.tar.gz
PNFS fix EACCESS on commit to DS handling
Commit fabbbee0eb0f "PNFS fix fallback to MDS if got error on
commit to DS" moved the pnfs_set_lo_fail() to unhandled errors
which was not correct and lead to a kernel oops on umount.

Instead, fix the original EACCESS on commit to DS error by
getting the new layout and re-doing the IO.

Fixes: fabbbee0eb0f ("PNFS fix fallback to MDS if got error on commit to DS")
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Cc: stable@vger.kernel.org # v4.12
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/filelayout')
-rw-r--r--fs/nfs/filelayout/filelayout.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index 1cf85d65b748..3e486cd01caf 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -172,6 +172,7 @@ static int filelayout_async_handle_error(struct rpc_task *task,
 	case -NFS4ERR_RETRY_UNCACHED_REP:
 		break;
 	/* Invalidate Layout errors */
+	case -NFS4ERR_ACCESS:
 	case -NFS4ERR_PNFS_NO_LAYOUT:
 	case -ESTALE:           /* mapped NFS4ERR_STALE */
 	case -EBADHANDLE:       /* mapped NFS4ERR_BADHANDLE */
@@ -202,10 +203,10 @@ static int filelayout_async_handle_error(struct rpc_task *task,
 			task->tk_status);
 		nfs4_mark_deviceid_unavailable(devid);
 		pnfs_error_mark_layout_for_return(inode, lseg);
+		pnfs_set_lo_fail(lseg);
 		rpc_wake_up(&tbl->slot_tbl_waitq);
 		/* fall through */
 	default:
-		pnfs_set_lo_fail(lseg);
 reset:
 		dprintk("%s Retry through MDS. Error %d\n", __func__,
 			task->tk_status);