[PATCH v2 01/13] xprtrdma: On invalidation failure, remove MWs from rl_registered

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

diff --git a/net/sunrpc/xprtrdma/fmr_ops.c b/net/sunrpc/xprtrdma/fmr_ops.c
index 59e6402..21f3cd5 100644
--- a/net/sunrpc/xprtrdma/fmr_ops.c
+++ b/net/sunrpc/xprtrdma/fmr_ops.c
@@ -295,6 +295,7 @@ enum {
 	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);
 	}

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