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SubjectRe: [PATCH 2.6.24-rc8-mm1 05/15] IPC/semaphores: remove one unused parameter from semctl_down()


Nadia Derbey wrote:
> pierre.peiffer@bull.net wrote:
>> From: Pierre Peiffer <pierre.peiffer@bull.net>
>>
>> semctl_down() takes one unused parameter: semnum.
>> This patch proposes to get rid of it.
>>
>> Signed-off-by: Pierre Peiffer <pierre.peiffer@bull.net>
>> Acked-by: Serge Hallyn <serue@us.ibm.com>
>> ---
>> 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?

Indeed.
In fact, I already fixed that in a previous patch, included in -mm since kernel
2.6.24.rc3-mm2 (patch named ipc-semaphores-consolidate-sem_stat-and.patch)

--
Pierre


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