shmem: Convert shmem_add_to_page_cache to XArray

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We can use xas_find_conflict() instead of radix_tree_gang_lookup_slot()
to find any conflicting entry and combine the three paths through this
function into one.

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

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Matthew Wilcox 2017-12-01 13:25:14 -05:00

parent e21a29552f

commit 552446a416

1 changed files with 34 additions and 47 deletions

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mm/shmem.c

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