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mm: convert free_transhuge_folio() to folio_undo_large_rmappable()

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Indirect calls are expensive, thanks to Spectre.  Test for
TRANSHUGE_PAGE_DTOR and destroy the folio appropriately.  Move the
free_compound_page() call into destroy_large_folio() to simplify later
patches.

Link: https://lkml.kernel.org/r/20230816151201.3655946-5-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle)
2023-08-16 16:11:52 +01:00
committed by Andrew Morton
parent 454a00c40a
commit 8dc4a8f1e0
5 changed files with 19 additions and 18 deletions
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2
include/linux/mm.h
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@@ -1253,9 +1253,7 @@ enum compound_dtor_id {
#ifdef CONFIG_HUGETLB_PAGE
HUGETLB_PAGE_DTOR,
#endif
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
TRANSHUGE_PAGE_DTOR,
#endif
NR_COMPOUND_DTORS,
};