Messages in this thread | | | Date | Mon, 02 Dec 2013 17:24:22 -0500 | From | Rik van Riel <> | Subject | Re: [patch 2/9] lib: radix-tree: radix_tree_delete_item() |
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On 12/02/2013 02:21 PM, 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>
Reviewed-by: Rik van Riel <riel@redhat.com>
-- All rights reversed
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