Feature request: expose disk cache safety margin

Search before asking

• I have searched the Ultralytics issues and found no similar feature requests.

Description

Could check_cache_disk()'s safety margin be exposed as a training parameter? For example: model.train(..., cache="disk", cache_safety_margin=0.0) This would avoid needing to monkey-patch/modify Ultralytics for users who have enough disk space but don't need the default safety margin.

Use case

For large datasets, the disk cache check can reject cache="disk" even when there is enough actual free disk space available. Exposing the safety margin would let users adjust it based on their available storage without modifying or monkey-patching the source code.

Additional

No response

Are you willing to submit a PR?

• Yes I'd like to help by submitting a PR!