On Fri, Jan 20, 2017 at 10:36:57PM +0800, Geliang Tang wrote: > To make the code clearer, use rb_entry() instead of container_of() to > deal with rbtree. > > Signed-off-by: Geliang Tang <[email protected]> > --- > drivers/net/ethernet/mellanox/mlx4/resource_tracker.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-)
I don't understand completely the rationale behind this conversion.
rb_entry == container_of, why do we need another name for it?
>
> diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
> b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
> index 1822382..6da6e01 100644
> --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
> +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
> @@ -236,8 +236,8 @@ static void *res_tracker_lookup(struct rb_root *root, u64
> res_id)
> struct rb_node *node = root->rb_node;
>
> while (node) {
> - struct res_common *res = container_of(node, struct res_common,
> - node);
> + struct res_common *res = rb_entry(node, struct res_common,
> + node);
>
> if (res_id < res->res_id)
> node = node->rb_left;
> @@ -255,8 +255,8 @@ static int res_tracker_insert(struct rb_root *root,
> struct res_common *res)
>
> /* Figure out where to put new node */
> while (*new) {
> - struct res_common *this = container_of(*new, struct res_common,
> - node);
> + struct res_common *this = rb_entry(*new, struct res_common,
> + node);
>
> parent = *new;
> if (res->res_id < this->res_id)
> --
> 2.9.3
>
> --
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