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| author | Maor Gottlieb <maorg@mellanox.com> | 2017-03-29 06:03:02 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-04-21 19:26:05 +0300 |
| commit | ecc7d83be3243835c9396a1a2fb8ce95f205207b (patch) | |
| tree | 974b9d74fec90fb7532383312f2b5330a353e363 /include/linux/stackprotector.h | |
| parent | ca37a664a8e4e9988b220988ceb4d79e3316f195 (diff) | |
| download | linux-ecc7d83be3243835c9396a1a2fb8ce95f205207b.tar.xz | |
IB/mlx5: 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: 7c2344c3bbf97 ('IB/mlx5: Implements disassociate_ucontext API')
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 'include/linux/stackprotector.h')
0 files changed, 0 insertions, 0 deletions