Re: [patch 3/3] convert CONFIG tag for a few accounting data usedby CSA

From: Andrew Morton
Date: Wed Aug 02 2006 - 03:29:02 EST


On Wed, 02 Aug 2006 09:26:02 +0200
Jes Sorensen <jes@xxxxxxx> wrote:

> Shailabh Nagar wrote:
> > Jay Lan wrote:
> >> There were a few accounting data/macros that are used in CSA
> >> but are #ifdef'ed inside CONFIG_BSD_PROCESS_ACCT. This patch is
> >> to change those ifdef's from CONFIG_BSD_PROCESS_ACCT to
> >> CONFIG_CSA_ACCT. A few defines are moved from kernel/acct.c and
> >> include/linux/acct.h to kernel/csa.c and include/linux/csa_kern.h.
> >>
> >>
> >> Signed-off-by: Jay Lan <jlan@xxxxxxx>
>
> [snip]
>
> >> +#ifdef CONFIG_CSA_ACCT
> >> +extern void acct_update_integrals(struct task_struct *tsk);
> >> +extern void acct_clear_integrals(struct task_struct *tsk);
> >> +#else
> >> +#define acct_update_integrals(x) do { } while (0)
> >> +#define acct_clear_integrals(task) do { } while (0)
> >> +#endif
> >> +
> >
> > static inlines preferred
>
> Huh? Is that a preference to the taskstat project? For the kernel
> itself it makes no difference.

static inlines provide typechecking and typo checking and presence-of-x
checking when the option is configged off. They can also suppress unused
variable warnings.

And they're C, not cpp ;)

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