Claude review: drm/amdgpu: fix sync handling in amdgpu_dma_buf_move_notify

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Overall Series Review

Subject: drm/amdgpu: fix sync handling in amdgpu_dma_buf_move_notify
Author: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Patches: 2
Reviewed: 2026-02-11T16:29:51.076623

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This is a single-patch series addressing a synchronization bug in amdgpu's dma-buf move notification handling. The patch has been reviewed and approved by Christian König (maintainer).

**Series Summary:**
- **Scope**: Single patch fixing race condition in cross-process shared buffer handling
- **Impact**: Fixes page faults when shared buffers are moved between processes/GPUs
- **Risk**: Low - changes only synchronization behavior, not fundamental logic
- **Stability candidate**: Yes - fixes a race condition that can cause GPU page faults

**Key Concerns:**
1. The patch lacks a Cc: stable tag despite fixing a regression introduced by commit a448cb003edc
2. Christian König requested stable tag in review but this wasn't addressed
3. The fix is conceptually sound but testing coverage is unclear

**Recommendation**: The patch should be merged with a Cc: stable@vger.kernel.org tag added.

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