Messages in this thread |  | | Date | Wed, 12 Feb 2014 11:00:14 +0000 | From | Mel Gorman <> | Subject | Re: [patch 03/10] lib: radix-tree: radix_tree_delete_item() |
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On Mon, Feb 03, 2014 at 07:53:35PM -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> > Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mgorman@suse.de>
-- Mel Gorman SUSE Labs
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