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| author | Maor Gottlieb <maorg@mellanox.com> | 2017-03-29 06:03:00 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-04-21 12:26:05 -0400 |
| commit | 22c3653d04bd0c67b75e99d85e0c0bdf83947df5 (patch) | |
| tree | 1e7ec4e9a2c72b823d32576a59b4ec1c649807c8 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | IB/mlx4: Reduce SRIOV multicast cleanup warning message to debug level (diff) | |
| download | linux-22c3653d04bd0c67b75e99d85e0c0bdf83947df5.tar.gz linux-22c3653d04bd0c67b75e99d85e0c0bdf83947df5.zip | |
IB/mlx4: Take write semaphore when changing the vma struct
When the driver disassociate user context, it changes the vma to
anonymous by setting the vm_ops to null and zap the vma ptes.
In order to avoid race in the kernel, we need to take write lock
before we change the vma entries.
Fixes: ae184ddeca5db ('IB/mlx4_ib: Disassociate support')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions