| Date | Mon, 25 Nov 2013 17:21:02 +0900 | From | Minchan Kim <> | Subject | Re: [patch 2/9] lib: radix-tree: radix_tree_delete_item() |
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On Sun, Nov 24, 2013 at 06:38:21PM -0500, Johannes Weiner wrote: > Provide a function that does not just delete an entry at a given > index, but also allows passing in an expected item. Delete only if > that item is still located at the specified index. > > This is handy when lockless tree traversals want to delete entries as > well because they don't have to do an second, locked lookup to verify > the slot has not changed under them before deleting the entry. > > Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Minchan Kim <minchan@kernel.org>
-- Kind regards, Minchan Kim
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