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Subject[PATCH AUTOSEL for 4.9 087/190] xprtrdma: Cancel refresh worker during buffer shutdown
Date
From: Chuck Lever <chuck.lever@oracle.com>

[ Upstream commit 9378b274e1eb6925db315e345f48850d2d5d9789 ]

Trying to create MRs while the transport is being torn down can
cause a crash.

Fixes: e2ac236c0b65 ("xprtrdma: Allocate MRs on demand")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
net/sunrpc/xprtrdma/verbs.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 69502fa68a3c..1a2b1f61ed26 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1054,6 +1054,7 @@ void
rpcrdma_buffer_destroy(struct rpcrdma_buffer *buf)
{
cancel_delayed_work_sync(&buf->rb_recovery_worker);
+ cancel_delayed_work_sync(&buf->rb_refresh_worker);

while (!list_empty(&buf->rb_recv_bufs)) {
struct rpcrdma_rep *rep;
--
2.14.1
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