RE: [PATCH v2] fs/resctrl: Optimize code in rdt_get_tree()

[Shaopeng Tan (Fujitsu)]

Hello Reinette,

Do you have any other comments?

> schemata_list_destroy() has to be called if schemata_list_create() fails.
> 
> rdt_get_tree() calls schemata_list_destroy() in two different ways:
> directly if schemata_list_create() itself fails and on the exit path via the
> out_schemata_free goto label.
> 
> Remove schemata_list_destroy() call on schemata_list_create() failure.
> Use existing out_schemata_free goto label instead.
> 
> Signed-off-by: Shaopeng Tan <tan.shaopeng@xxxxxxxxxxxxxx>
> Reviewed-by: Reinette Chatre <reinette.chatre@xxxxxxxxx>
> Reviewed-by: James Morse <james.morse@xxxxxxx>
> ---
>  fs/resctrl/rdtgroup.c | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/fs/resctrl/rdtgroup.c b/fs/resctrl/rdtgroup.c index
> 77d08229d855..5f0b7cfa1cc2 100644
> --- a/fs/resctrl/rdtgroup.c
> +++ b/fs/resctrl/rdtgroup.c
> @@ -2608,10 +2608,8 @@ static int rdt_get_tree(struct fs_context *fc)
>  		goto out_root;
> 
>  	ret = schemata_list_create();
> -	if (ret) {
> -		schemata_list_destroy();
> -		goto out_ctx;
> -	}
> +	if (ret)
> +		goto out_schemata_free;
> 
>  	ret = closid_init();
>  	if (ret)
> @@ -2683,7 +2681,6 @@ static int rdt_get_tree(struct fs_context *fc)
>  	closid_exit();
>  out_schemata_free:
>  	schemata_list_destroy();
> -out_ctx:
>  	rdt_disable_ctx();
>  out_root:
>  	rdtgroup_destroy_root();
> --
> 2.43.5