page cache: Convert filemap_range_has_page to XArray

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Instead of calling find_get_pages_range() and putting any reference,
use xas_find() to iterate over any entries in the range, skipping the
shadow/swap entries.

Signed-off-by: Matthew Wilcox <willy@infradead.org>

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Matthew Wilcox 2018-01-16 06:26:49 -05:00

parent 22ecdb4f8b

commit 8fa8e538e4

1 changed files with 19 additions and 8 deletions

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mm/filemap.c

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