dax: Hash on XArray instead of mapping

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Since the XArray is embedded in the struct address_space, its address
contains exactly as much entropy as the address of the mapping.  This
patch is purely preparatory for later patches which will simplify the
wait/wake interfaces.

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

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Matthew Wilcox 2018-03-28 11:01:43 -04:00

parent a77d19f46a

commit ec4907ff69

1 changed files with 15 additions and 14 deletions

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fs/dax.c

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