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maple_tree: clean up mas_dfs_postorder()

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Convert loop type to ensure all variables are set to make the compiler
happy, and use the mas_is_none() function instead of explicitly checking
the node in the maple state.

Link: https://lkml.kernel.org/r/20230518145544.1722059-5-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: David Binderman <dcb314@hotmail.com>
Cc: Peng Zhang <zhangpeng.00@bytedance.com>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Vernon Yang <vernon2gm@gmail.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Liam R. Howlett 2023-05-18 10:55:13 -04:00 committed by Andrew Morton
parent 633769c926
commit c3eb787e88
1 changed files with 2 additions and 5 deletions
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7
lib/maple_tree.c
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@ -6734,15 +6734,12 @@ static void mas_dfs_postorder(struct ma_state *mas, unsigned long max)
mas->node = mn;
mas_ascend(mas);
while (mas->node != MAS_NONE) {
do {
p = mas->node;
p_min = mas->min;
p_max = mas->max;
mas_prev_node(mas, 0);
}
if (p == MAS_NONE)
return;
} while (!mas_is_none(mas));
mas->node = p;
mas->max = p_max;