btrfs: convert defrag_prepare_one_page() to use a folio

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Use a folio throughout defrag_prepare_one_page() to remove dozens of
hidden calls to compound_head().  There is no support here for large
folios; indeed, turn the existing check for PageCompound into a check
for large folios.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Matthew Wilcox (Oracle) 2023-12-14 16:13:30 +00:00 • committed by David Sterba

parent dfba9f4773

commit 03fbf77a2c

1 changed files with 27 additions and 26 deletions

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fs/btrfs/defrag.c

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