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xprtrdma: Cancel refresh worker during buffer shutdown 

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

Fixes: e2ac236c0b ("xprtrdma: Allocate MRs on demand")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2017-04-11 13:22:29 -04:00 committed by Anna Schumaker
parent 39da7c509a
commit 9378b274e1
1 changed files with 1 additions and 0 deletions
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1
net/sunrpc/xprtrdma/verbs.c
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@ -1037,6 +1037,7 @@ 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;