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| author | Jack Wang <[email protected]> | 2020-07-24 16:45:08 +0530 |
|---|---|---|
| committer | Jason Gunthorpe <[email protected]> | 2020-07-29 14:26:53 -0300 |
| commit | 03ed5a8cda659e3c71d106b0dd4ce6520e4dcd6e (patch) | |
| tree | 0c0607bb3a3cf48c21efee54a45fe97ae0c2ce99 /scripts/gcc-plugins/cyc_complexity_plugin.c | |
| parent | 09e0dbbeed82e35ce2cd21e086a6fac934163e2a (diff) | |
RDMA/rtrs: remove WQ_MEM_RECLAIM for rtrs_wq
lockdep triggers a warning from time to time when running a regression
test:
rnbd_client L685: </dev/nullb0@bla> Device disconnected.
rnbd_client L1756: Unloading module
workqueue: WQ_MEM_RECLAIM rtrs_client_wq:rtrs_clt_reconnect_work [rtrs_client] is flushing !WQ_MEM_RECLAIM ib_addr:process_one_req [ib_core]
WARNING: CPU: 2 PID: 18824 at kernel/workqueue.c:2517 check_flush_dependency+0xad/0x130
The root cause is workqueue core expect flushing should not be done for a
!WQ_MEM_RECLAIM wq from a WQ_MEM_RECLAIM workqueue.
In above case ib_addr workqueue without WQ_MEM_RECLAIM, but rtrs_wq
WQ_MEM_RECLAIM.
To avoid the warning, remove the WQ_MEM_RECLAIM flag.
Fixes: 9cb837480424 ("RDMA/rtrs: server: main functionality")
Fixes: 6a98d71daea1 ("RDMA/rtrs: client: main functionality")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jack Wang <[email protected]>
Signed-off-by: Md Haris Iqbal <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Diffstat (limited to 'scripts/gcc-plugins/cyc_complexity_plugin.c')
0 files changed, 0 insertions, 0 deletions