diff options
| author | Vernon Yang <vernon2gm@gmail.com> | 2022-12-21 09:00:57 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-01-19 04:12:46 +0300 |
| commit | 46b345848261009477552d654cb2f65000c30e4d (patch) | |
| tree | 9f8c087ed2ff597e06e10dfad1315d1431dcee1c /lib/maple_tree.c | |
| parent | eabb305293835b191ffe60234587ae8bf5e4e9fd (diff) | |
| download | linux-46b345848261009477552d654cb2f65000c30e4d.tar.xz | |
maple_tree: refine ma_state init from mas_start()
If mas->node is an MAS_START, there are three cases, and they all assign
different values to mas->node and mas->offset. So there is no need to set
them to a default value before updating.
Update them directly to make them easier to understand and for better
readability.
Link: https://lkml.kernel.org/r/20221221060058.609003-7-vernon2gm@gmail.com
Signed-off-by: Vernon Yang <vernon2gm@gmail.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'lib/maple_tree.c')
| -rw-r--r-- | lib/maple_tree.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/maple_tree.c b/lib/maple_tree.c index 4b0575b60a11..d4554c11ec15 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -1329,7 +1329,7 @@ static void mas_node_count(struct ma_state *mas, int count) * mas_start() - Sets up maple state for operations. * @mas: The maple state. * - * If mas->node == MAS_START, then set the min, max, depth, and offset to + * If mas->node == MAS_START, then set the min, max and depth to * defaults. * * Return: @@ -1343,22 +1343,22 @@ static inline struct maple_enode *mas_start(struct ma_state *mas) if (likely(mas_is_start(mas))) { struct maple_enode *root; - mas->node = MAS_NONE; mas->min = 0; mas->max = ULONG_MAX; mas->depth = 0; - mas->offset = 0; root = mas_root(mas); /* Tree with nodes */ if (likely(xa_is_node(root))) { mas->depth = 1; mas->node = mte_safe_root(root); + mas->offset = 0; return NULL; } /* empty tree */ if (unlikely(!root)) { + mas->node = MAS_NONE; mas->offset = MAPLE_NODE_SLOTS; return NULL; } |