[Platform] Allow pinning the attention backend for components that auto-select - #53450

[Platform] Allow pinning the attention backend for components that auto-select#53450

jianyi85 wants to merge 2 commits into

vllm-project:mainvllm-project/vllm:mainfrom

jianyi85:fix/force-attn-backend-envjianyi85/vllm:fix/force-attn-backend-envCopy head branch name to clipboard