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Chuck Lever 8fe5e38acb svcrdma: Fix another Receive buffer leak 
[ Upstream commit 64d2642251 ]

During a connection tear down, the Receive queue is flushed before
the device resources are freed. Typically, all the Receives flush
with IB_WR_FLUSH_ERR.

However, any pending successful Receives flush with IB_WR_SUCCESS,
and the server automatically posts a fresh Receive to replace the
completing one. This happens even after the connection has closed
and the RQ is drained. Receives that are posted after the RQ is
drained appear never to complete, causing a Receive resource leak.
The leaked Receive buffer is left DMA-mapped.

To prevent these late-posted recv_ctxt's from leaking, block new
Receive posting after XPT_CLOSE is set.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2020-08-26 10:40:55 +02:00
..
auth_gss SUNRPC: Fix ("SUNRPC: Add "@len" parameter to gss_unwrap()") 2020-08-19 08:16:21 +02:00
xprtrdma svcrdma: Fix another Receive buffer leak 2020-08-26 10:40:55 +02:00
Kconfig
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Makefile
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addr.c net: sunrpc: Fix off-by-one issues in 'rpc_ntop6' 2020-06-24 17:50:35 +02:00
auth.c
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auth_null.c
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auth_unix.c
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backchannel_rqst.c
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cache.c sunrpc: Fix potential leaks in sunrpc_cache_unhash() 2020-02-24 08:36:55 +01:00
clnt.c SUNRPC: Signalled ASYNC tasks need to exit 2020-05-20 08:20:24 +02:00
debugfs.c
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netns.h
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rpc_pipe.c sunrpc: fixed rollback in rpc_gssd_dummy_populate() 2020-06-30 15:37:11 -04:00
rpcb_clnt.c
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sched.c
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socklib.c
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stats.c
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sunrpc.h sunrpc: check that domain table is empty at module unload. 2020-08-05 09:59:41 +02:00
sunrpc_syms.c sunrpc: check that domain table is empty at module unload. 2020-08-05 09:59:41 +02:00
svc.c nfsd: Fix NFSv4 READ on RDMA when using readv 2020-08-11 15:33:42 +02:00
svc_xprt.c svcrdma: Fix leak of svc_rdma_recv_ctxt objects 2020-05-02 08:48:48 +02:00
svcauth.c sunrpc: check that domain table is empty at module unload. 2020-08-05 09:59:41 +02:00
svcauth_unix.c
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svcsock.c nfsd: Fix NFSv4 READ on RDMA when using readv 2020-08-11 15:33:42 +02:00
sysctl.c
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timer.c
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xdr.c SUNRPC: Properly set the @subbuf parameter of xdr_buf_subsegment() 2020-06-30 15:37:12 -04:00
xprt.c
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xprtmultipath.c
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xprtsock.c SUNRPC: Fix backchannel RPC soft lockups 2020-04-29 16:33:18 +02:00