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@xxxxxxxxxxx> Reviewed-by: Minchan Kim <minchan@xxxxxxxxxx> -- Kind regards, Minchan Kim -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>