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| H A D | vmscan.c | diff 820c4e2e6f517e4c0cee703265e275e3a08992e6 Wed Sep 30 15:15:46 CDT 2020 Matthew Wilcox (Oracle) <willy@infradead.org> mm/vmscan: Free non-shmem folios without splitting them
We have to allocate memory in order to split a file-backed folio, so
it's not a good idea to split them in the memory freeing path. It also
doesn't work for XFS because pages have an extra reference count from
page_has_private() and split_huge_page() expects that reference to have
already been removed. Unfortunately, we still have to split shmem THPs
because we can't handle swapping out an entire THP yet.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
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