rmap: add folio parameter to __page_set_anon_rmap()

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Avoid the compound_head() call in PageAnon() by passing in the folio that
all callers have.  Also save me from wondering whether page->mapping can
ever be overwritten on a tail page (I don't think it can, but I'm not 100%
sure).

Link: https://lkml.kernel.org/r/20230116192959.2147032-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Matthew Wilcox (Oracle) 2023-01-16 19:29:59 +00:00 • committed by Andrew Morton

parent e0650a41f7

commit 5b4bd90f9a

1 changed files with 11 additions and 10 deletions

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mm/rmap.c

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