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maple_tree: make the code symmetrical in mas_wr_extend_null()

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Just make the code symmetrical to improve readability.

Link: https://lkml.kernel.org/r/20230524031247.65949-6-zhangpeng.00@bytedance.com
Signed-off-by: Peng Zhang <zhangpeng.00@bytedance.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Peng Zhang 2023-05-24 11:12:42 +08:00 committed by Andrew Morton
parent bc147f0f70
commit 8c995a6314
1 changed files with 14 additions and 12 deletions
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26
lib/maple_tree.c
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@ -4264,19 +4264,21 @@ static inline void mas_wr_extend_null(struct ma_wr_state *wr_mas)
{
struct ma_state *mas = wr_mas->mas;
if (mas->last < wr_mas->end_piv && !wr_mas->slots[wr_mas->offset_end])
if (!wr_mas->slots[wr_mas->offset_end]) {
/* If this one is null, the next and prev are not */
mas->last = wr_mas->end_piv;
/* Check next slot(s) if we are overwriting the end */
if ((mas->last == wr_mas->end_piv) &&
(wr_mas->node_end != wr_mas->offset_end) &&
!wr_mas->slots[wr_mas->offset_end + 1]) {
wr_mas->offset_end++;
if (wr_mas->offset_end == wr_mas->node_end)
mas->last = mas->max;
else
mas->last = wr_mas->pivots[wr_mas->offset_end];
wr_mas->end_piv = mas->last;
} else {
/* Check next slot(s) if we are overwriting the end */
if ((mas->last == wr_mas->end_piv) &&
(wr_mas->node_end != wr_mas->offset_end) &&
!wr_mas->slots[wr_mas->offset_end + 1]) {
wr_mas->offset_end++;
if (wr_mas->offset_end == wr_mas->node_end)
mas->last = mas->max;
else
mas->last = wr_mas->pivots[wr_mas->offset_end];
wr_mas->end_piv = mas->last;
}
}
if (!wr_mas->content) {