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| author | Bernard Metzler <bmt@zurich.ibm.com> | 2019-10-04 14:53:56 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-31 16:44:14 +0100 |
| commit | 630a6a913e3a48f4890f8b9d912cd8217af59f19 (patch) | |
| tree | 226e58e12578d5dd5eca3babeda5411383d2cf56 /drivers/char/ipmi | |
| parent | 9d8b296f8f22dc18db634f1cc4ac3eb579977fda (diff) | |
RDMA/siw: Fix SQ/RQ drain logic
[ Upstream commit cf049bb31f7101d9672eaf97ade4fdd5171ddf26 ]
Storage ULPs (e.g. iSER & NVMeOF) use ib_drain_qp() to drain
QP/CQ. Current SIW's own drain routines do not properly wait until all
SQ/RQ elements are completed and reaped from the CQ. This may cause touch
after free issues. New logic relies on generic
__ib_drain_sq()/__ib_drain_rq() posting a final work request, which SIW
immediately flushes to CQ.
Fixes: 303ae1cdfdf7 ("rdma/siw: application interface")
Link: https://lore.kernel.org/r/20191004125356.20673-1-bmt@zurich.ibm.com
Signed-off-by: Krishnamraju Eraparaju <krishna2@chelsio.com>
Signed-off-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/char/ipmi')
0 files changed, 0 insertions, 0 deletions