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[lora] only remove hooks that we add back #11768

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Merged
merged 2 commits into from
Jun 24, 2025
Merged

[lora] only remove hooks that we add back #11768

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yiyixuxu Jun 22, 2025
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Merge branch 'main' into update-remove-hooks
yiyixuxu Jun 23, 2025
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3 changes: 2 additions & 1 deletion src/diffusers/loaders/lora_base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -442,7 +442,8 @@ def _func_optionally_disable_offloading(_pipeline):
logger.info(
"Accelerate hooks detected. Since you have called `load_lora_weights()`, the previous hooks will be first removed. Then the LoRA parameters will be loaded and the hooks will be applied again."
)
remove_hook_from_module(component, recurse=is_sequential_cpu_offload)
if is_sequential_cpu_offload or is_model_cpu_offload:
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cc @sayakpaul
can you double check here? I'm not sure why we need to remove the hooks, but since we only add back sequential_cpu and model_cpu hooks (

diffusers/src/diffusers/loaders/lora_base.py

Line 409 in 7fc53b5

if is_model_cpu_offload:
), we should only remove these 2 types

remove_hook_from_module(component, recurse=is_sequential_cpu_offload)

return (is_model_cpu_offload, is_sequential_cpu_offload)

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3 changes: 2 additions & 1 deletion src/diffusers/loaders/textual_inversion.py
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Expand Up @@ -427,7 +427,8 @@ def load_textual_inversion(
logger.info(
"Accelerate hooks detected. Since you have called `load_textual_inversion()`, the previous hooks will be first removed. Then the textual inversion parameters will be loaded and the hooks will be applied again."
)
remove_hook_from_module(component, recurse=is_sequential_cpu_offload)
if is_sequential_cpu_offload or is_model_cpu_offload:
remove_hook_from_module(component, recurse=is_sequential_cpu_offload)

# 7.2 save expected device and dtype
device = text_encoder.device
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