On Thu, May 6, 2021 at 4:02 AM Joao Martins [off-list ref] wrote:
[..]
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+static pte_t * __meminit vmemmap_lookup_address(unsigned long addr)
I think this can be replaced with a call to follow_pte(&init_mm...).
Ah, of course! That would shorten things up too.
Now that I look closely, I notice that function disclaims being
suitable as a general purpose pte lookup utility. If it works for you,
great, but if not I think it's past time to create such a helper. I
know Ira is looking for one, and I contributed to the proliferation
when I added dev_pagemap_mapping_shift().