Messages in this thread | | | Date | Sat, 28 Jan 2012 00:34:08 +0400 | From | Glauber Costa <> | Subject | Re: [RFC c/r 2/4] [RFC] syscalls, x86: Add __NR_kcmp syscall v7 |
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>> + case KCMP_SYSVSEM: >> +#ifdef CONFIG_SYSVIPC >> + ret = kcmp_ptr((long)task1->sysvsem.undo_list, >> + (long)task2->sysvsem.undo_list, >> + KCMP_SYSVSEM); >> +#else >> + ret = -EINVAL; > > ENOTSUP is better, I think. because of, EINVAL implicitly mean _caller_ is wrong. > but in this case, it is not bad. only the kernel doesn't have enough feature. >
Isn't it usually the case for ENOSYS, then ?
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