Re: [PATCH 1/6] mm/gup: introduce pin_user_page()

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On 8/30/22 05:17, David Hildenbrand wrote:
> (side note: after recent VM_BUG_ON discussions we might want to convert
> the VM_BUG_ON_PAGE in sanity_check_pinned_pages())

Just realized I skipped over this point in my other response.

So, there are 28 "BUG_ON" calls in mm/gup.c, only 3 of which are 
BUILD_BUG_ON().

Maybe a single patch that covers all 25 at once is the way to go, I'm
thinking. And of course, any patch that touches any of those lines
should convert to a WARN* variant--whichever lands first.


thanks,

-- 
John Hubbard
NVIDIA



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