• Matthew Wilcox's avatar
    dax: Convert dax_insert_pfn_mkwrite to XArray · cfc93c6c
    Matthew Wilcox authored
    Add some XArray-based helper functions to replace the radix tree based
    metaphors currently in use.  The biggest change is that converted code
    doesn't see its own lock bit; get_unlocked_entry() always returns an
    entry with the lock bit clear.  So we don't have to mess around loading
    the current entry and clearing the lock bit; we can just store the
    unlocked entry that we already have.
    Signed-off-by: default avatarMatthew Wilcox <willy@infradead.org>
dax.c 50.5 KB