Messages in this thread | | | Date | Mon, 7 Aug 2023 17:29:38 -0700 | Subject | Re: [PATCH v2 04/32] mm/pgtable: allow pte_offset_map[_lock]() to fail | From | John Hubbard <> |
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On 8/5/23 10:07, Matthew Wilcox wrote: ... >> Sorry, I am not able to give any explanation here, >> I am not familiar with the pvrsrvkm source, I just use it to have one >> working AOSP build. >> >> here is the source file where pte_offset_map_lock is called, >> https://android-git.linaro.org/kernel/omap-modules.git/tree/pvr/services4/srvkm/env/linux/osfunc.c?h=android-mainline#n3508 >> in case you could know something with a quick look. > > Isn't this just get_user_pages()?
Or even just follow_page(), which looks like a nearly perfect drop-in replacement, especially since that android link also says, "The page in question must be present (i.e. no fault handling required)".
thanks, -- John Hubbard NVIDIA
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