Re: [PATCH] ifdef struct task_struct::security

From: Serge E. Hallyn
Date: Mon Aug 06 2007 - 16:38:16 EST


Quoting Alexey Dobriyan (adobriyan@xxxxxxxxx):
> For those who don't care about CONFIG_SECURITY.

I'm quite sure we started that way, but the ifdefs were considered
too much of an eyesore.

If this is now acceptable, then the same thing might be considered
for inode->i_security, kern_ipc_perm.security, etc. Getting rid of
just the task->security seems overly half-hearted.

-serge

> Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
> ---
>
> include/linux/sched.h | 3 ++-
> kernel/fork.c | 2 ++
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> --- a/include/linux/sched.h
> +++ b/include/linux/sched.h
> @@ -1086,8 +1086,9 @@ struct task_struct {
> int (*notifier)(void *priv);
> void *notifier_data;
> sigset_t *notifier_mask;
> -
> +#ifdef CONFIG_SECURITY
> void *security;
> +#endif
> struct audit_context *audit_context;
> seccomp_t seccomp;
>
> --- a/kernel/fork.c
> +++ b/kernel/fork.c
> @@ -1066,7 +1066,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
> do_posix_clock_monotonic_gettime(&p->start_time);
> p->real_start_time = p->start_time;
> monotonic_to_bootbased(&p->real_start_time);
> +#ifdef CONFIG_SECURITY
> p->security = NULL;
> +#endif
> p->io_context = NULL;
> p->io_wait = NULL;
> p->audit_context = NULL;
>
> -
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