mm: use a folio in copy_present_pte()

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We still have to keep the page around because we need to know which page
in the folio we're copying, but we can replace five implict calls to
compound_head() with one.

Link: https://lkml.kernel.org/r/20230116191813.2145215-6-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Matthew Wilcox (Oracle) 2023-01-16 19:18:13 +00:00 • committed by Andrew Morton

parent edf5047058

commit 14ddee4126

1 changed files with 9 additions and 6 deletions

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mm/memory.c

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