Re: [PATCH 2.6.24-rc8-mm1 05/15] IPC/semaphores: remove one unusedparameter from semctl_down()

[Nadia Derbey]

pierre.peiffer@xxxxxxxx wrote:
> From: Pierre Peiffer <pierre.peiffer@xxxxxxxx>
>
> semctl_down() takes one unused parameter: semnum.
> This patch proposes to get rid of it.
>
> Signed-off-by: Pierre Peiffer <pierre.peiffer@xxxxxxxx>
> Acked-by: Serge Hallyn <serue@xxxxxxxxxx>
> ---
>  ipc/sem.c |    6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> Index: b/ipc/sem.c
> ===================================================================
> --- a/ipc/sem.c
> +++ b/ipc/sem.c
> @@ -882,8 +882,8 @@ static inline unsigned long copy_semid_f
>   * to be held in write mode.
>   * NOTE: no locks must be held, the rw_mutex is taken inside this function.
>   */
> -static int semctl_down(struct ipc_namespace *ns, int semid, int semnum,
> -		int cmd, int version, union semun arg)
> +static int semctl_down(struct ipc_namespace *ns, int semid,
> +		       int cmd, int version, union semun arg)
>  {
>  	struct sem_array *sma;
>  	int err;
> @@ -974,7 +974,7 @@ asmlinkage long sys_semctl (int semid, i
>  		return err;
>  	case IPC_RMID:
>  	case IPC_SET:
> -		err = semctl_down(ns,semid,semnum,cmd,version,arg);
> +		err = semctl_down(ns, semid, cmd, version, arg);
>  		return err;
>  	default:
>  		return -EINVAL;

Looks like semnum is only used in semctl_main(). Why not removing it 
from semctl_nolock() too?

Regards,
Nadia



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