mm: use a folio in copy_pte_range()

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Allocate an order-0 folio instead of a page and pass it all the way down
the call chain.  Removes dozens of calls to compound_head().

Link: https://lkml.kernel.org/r/20230116191813.2145215-5-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 19:18:12 +00:00 • committed by Andrew Morton

parent 28d41a4863

commit edf5047058

1 changed files with 25 additions and 26 deletions

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mm/memory.c

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