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| author | Martin Krastev <krastevm@vmware.com> | 2021-06-09 13:23:05 -0400 |
|---|---|---|
| committer | Zack Rusin <zackr@vmware.com> | 2021-06-12 00:01:03 -0400 |
| commit | b7d0949f6ce691131323fafabd48bf2f5074ae8d (patch) | |
| tree | 793352bc2fdcc8c897a827d3b5b5fb4cf7b964c5 /drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | |
| parent | 8d9a8d9bd5034a88afef470664918aa914b1c3dc (diff) | |
| download | linux-b7d0949f6ce691131323fafabd48bf2f5074ae8d.tar.gz linux-b7d0949f6ce691131323fafabd48bf2f5074ae8d.tar.bz2 linux-b7d0949f6ce691131323fafabd48bf2f5074ae8d.zip | |
drm/vmwgfx: Refactor vmw_mksstat_remove_ioctl to expect pgid match with vmw_mksstat_add_ioctl to authorise removal.
Original vmw_mksstat_remove_ioctl expected pid to match the corresponding vmw_mksstat_add_ioctl.
That made impossible en-masse removals by one pid, which is a valid use case, so pid match was
discarded. Current change enforces a broader pgid match as a form of protection from arbitrary
processes interrupting an ongoing mks-guest-stats.
Reviewed-by: Zack Rusin <zackr@vmware.com>
Signed-off-by: Martin Krastev <krastevm@vmware.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210609172307.131929-8-zackr@vmware.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c')
0 files changed, 0 insertions, 0 deletions