There is a potential of an update causing issue with a reader when appending, so disable the append operation when readers a present. The code was also missing some documentation, tracing, and some cleanup was possible. These changes are in the second patch as there's no compelling reason to require a difficult backport. Changes since v1: - Added fixes tag to the first patch v1: https://lore.kernel.org/linux-mm/20230817191505.1170876-1-Liam.Howlett@xxxxxxxxxx/ Liam R. Howlett (2): maple_tree: Disable mas_wr_append() when other readers are possible maple_tree: Clean up mas_wr_append() lib/maple_tree.c | 41 +++++++++++++++++++++++++++-------------- 1 file changed, 27 insertions(+), 14 deletions(-) -- 2.39.2
