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| author | Mike Marciniszyn <mike.marciniszyn@intel.com> | 2016-06-18 05:17:49 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-06-23 17:16:15 +0300 |
| commit | 2aee309d3e01447c55fdf89cef05a0e2be372655 (patch) | |
| tree | adafeb7a28dc479b08799923931f8490be15be8d /include/rdma/rdma_vt.h | |
| parent | 34d351f8ddf6dee24d739c4b00a4404e48089a04 (diff) | |
| download | linux-2aee309d3e01447c55fdf89cef05a0e2be372655.tar.xz | |
IB/hfi1: Fix deadlock with txreq allocation slow path
A failure in the get_txreq() inline will result in a
slow path retry using __get_txreq().
__get_txreq() attempts to procure the qp s_lock, which
is already held in all callers.
Fix by deleting the s_lock maintenance in __get_txreq()
and add sparse syntax hooks to future proof the code.
Cc: Stable <stable@vger.kernel.org> # 4.6+
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma/rdma_vt.h')
0 files changed, 0 insertions, 0 deletions