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author | Niels Dossche <dossche.niels@gmail.com> | 2022-02-28 22:51:44 +0300 |
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committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-04-04 20:45:51 +0300 |
commit | 22cbc6c2681a0a4fe76150270426e763d52353a4 (patch) | |
tree | bd907b1bdb5f54e7d414fb252d979a09a0ea95b9 /net/sunrpc/xprtrdma/frwr_ops.c | |
parent | f543a3e82bb275349961f8507ee195f34132ffb4 (diff) | |
download | linux-22cbc6c2681a0a4fe76150270426e763d52353a4.tar.xz |
IB/rdmavt: add missing locks in rvt_ruc_loopback
The documentation of the function rvt_error_qp says both r_lock and
s_lock need to be held when calling that function.
It also asserts using lockdep that both of those locks are held.
rvt_error_qp is called form rvt_send_cq, which is called from
rvt_qp_complete_swqe, which is called from rvt_send_complete, which is
called from rvt_ruc_loopback in two places. Both of these places do not
hold r_lock. Fix this by acquiring a spin_lock of r_lock in both of
these places.
The r_lock acquiring cannot be added in rvt_qp_complete_swqe because
some of its other callers already have r_lock acquired.
Link: https://lore.kernel.org/r/20220228195144.71946-1-dossche.niels@gmail.com
Signed-off-by: Niels Dossche <dossche.niels@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/frwr_ops.c')
0 files changed, 0 insertions, 0 deletions