diff options
| author | Leon Romanovsky <leonro@nvidia.com> | 2021-10-21 08:27:39 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leonro@nvidia.com> | 2021-10-21 08:27:39 +0300 |
| commit | 60dd57c7479418e2bc902143eb46a2fdcfeecbbb (patch) | |
| tree | ab6005faf6076a4c93fdfbcdccc1ff4bc044c8ec /kernel/rseq.c | |
| parent | b8dfed636fc6239396c3a2ae5f812505906cf215 (diff) | |
| parent | ae0579acde812bc1efd074086ae3bc5eae170f20 (diff) | |
Merge brank 'mlx5_mkey' into rdma.git for-next
A small series to clean up the mlx5 mkey code across the mlx5_core and
InfiniBand.
* branch 'mlx5_mkey':
RDMA/mlx5: Attach ndescs to mlx5_ib_mkey
RDMA/mlx5: Move struct mlx5_core_mkey to mlx5_ib
RDMA/mlx5: Replace struct mlx5_core_mkey by u32 key
RDMA/mlx5: Remove pd from struct mlx5_core_mkey
RDMA/mlx5: Remove size from struct mlx5_core_mkey
RDMA/mlx5: Remove iova from struct mlx5_core_mkey
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Diffstat (limited to 'kernel/rseq.c')
| -rw-r--r-- | kernel/rseq.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/kernel/rseq.c b/kernel/rseq.c index 35f7bd0fced0..6d45ac3dae7f 100644 --- a/kernel/rseq.c +++ b/kernel/rseq.c @@ -282,9 +282,17 @@ void __rseq_handle_notify_resume(struct ksignal *ksig, struct pt_regs *regs) if (unlikely(t->flags & PF_EXITING)) return; - ret = rseq_ip_fixup(regs); - if (unlikely(ret < 0)) - goto error; + + /* + * regs is NULL if and only if the caller is in a syscall path. Skip + * fixup and leave rseq_cs as is so that rseq_sycall() will detect and + * kill a misbehaving userspace on debug kernels. + */ + if (regs) { + ret = rseq_ip_fixup(regs); + if (unlikely(ret < 0)) + goto error; + } if (unlikely(rseq_update_cpu_id(t))) goto error; return; |