Current ref_count inc/dec is not guarded by locks which leads to a raced condition where two threads try to access the variable at the same time. In this case, both might act on the same cached value and inc/dec from the same value, rather than inc/dec by 2. Signed-off-by: Jerry Zuo <Jerry.Zuo@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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