From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 8 Jun 2017 11:51:48 -0400
Subject: [PATCH] xprtrdma: On invalidation failure, remove MWs from
 rl_registered
Git-commit: 04d25b7d5d1b43fbaffe4ad4bb21288f0f305338
Patch-mainline: v4.13-rc1
References: git-fixes

Callers assume the ro_unmap_sync and ro_unmap_safe methods empty
the list of registered MRs. Ensure that all paths through
fmr_op_unmap_sync() remove MWs from that list.

Fixes: 9d6b04097882 ("xprtrdma: Place registered MWs on a ... ")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Acked-by: NeilBrown <neilb@suse.com>

---
 net/sunrpc/xprtrdma/fmr_ops.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/sunrpc/xprtrdma/fmr_ops.c
+++ b/net/sunrpc/xprtrdma/fmr_ops.c
@@ -295,6 +295,7 @@ out_reset:
 	pr_err("rpcrdma: ib_unmap_fmr failed (%i)\n", rc);
 
 	list_for_each_entry_safe(mw, tmp, &req->rl_registered, mw_list) {
+		list_del_init(&mw->mw_list);
 		list_del_init(&mw->fmr.fm_mr->list);
 		fmr_op_recover_mr(mw);
 	}