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| author | Melissa Wen <mwen@igalia.com> | 2025-09-16 14:18:28 -0300 |
|---|---|---|
| committer | Melissa Wen <melissa.srw@gmail.com> | 2025-09-30 14:28:14 -0100 |
| commit | adefb2ccea1e96b452cbbc39150bc0ccf1688b99 (patch) | |
| tree | 37f479f1bf6c08108b5cbf40a58861bec3e9777b /rust/kernel/alloc/kvec/errors.rs | |
| parent | 0c4932f6ddf815618fa34f7403df682aed7862b5 (diff) | |
drm/v3d: create a dedicated lock for dma fence
Don't mix dma fence lock with the active_job lock. Use fence_lock to
protect the dma fence used by drm scheduler when signalling a job
completion and queue_lock to protect concurrent access to active bin job
in OOM and stats collection for a given file priv. The issue was
uncovered when PREEMPT_RT on with a system freeze when opening multiple
Chromium tabs on Raspberry Pi 5.
Link: https://github.com/raspberrypi/linux/issues/7035
Fixes: fa6a20c87470 ("drm/v3d: Address race-condition between per-fd GPU stats and fd release")
Signed-off-by: Melissa Wen <mwen@igalia.com>
Acked-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://lore.kernel.org/r/20250916172022.2779837-1-mwen@igalia.com
Diffstat (limited to 'rust/kernel/alloc/kvec/errors.rs')
0 files changed, 0 insertions, 0 deletions