Re: [PATCH 2/2] mm: remove get_user_pages_locked()

From: Paolo Bonzini
Date: Mon Oct 31 2016 - 07:45:50 EST




On 31/10/2016 11:02, Lorenzo Stoakes wrote:
> - *
> - * get_user_pages should be phased out in favor of
> - * get_user_pages_locked|unlocked or get_user_pages_fast. Nothing
> - * should use get_user_pages because it cannot pass
> - * FAULT_FLAG_ALLOW_RETRY to handle_mm_fault.

This comment should be preserved in some way. In addition, removing
get_user_pages_locked() makes it harder (compared to a simple "git grep
-w") to identify callers that lack allow-retry functionality). So I'm
not sure about the benefits of these patches.

If all callers were changed, then sure removing the _locked suffix would
be a good idea.

Paolo