svn commit: r219405 - in head/sys: amd64/amd64 amd64/linux32 arm/arm compat/ia32 compat/linux compat/svr4 i386/i386 i386/ibcs2 i386/linux ia64/ia64 kern mips/mips powerpc/powerpc sparc64/sparc64 sys

[John Baldwin]

On Tuesday, March 08, 2011 2:01:45 pm Dmitry Chagin wrote:
> Author: dchagin
> Date: Tue Mar  8 19:01:45 2011
> New Revision: 219405
> URL: http://svn.freebsd.org/changeset/base/219405
> 
> Log:
>   Extend struct sysvec with new method sv_schedtail, which is used for an
>   explicit process at fork trampoline path instead of eventhadler(schedtail)
>   invocation for each child process.
>   
>   Remove eventhandler(schedtail) code and change linux ABI to use newly added
>   sysvec method.
>   
>   While here replace explicit comparing of module sysentvec structure with the
>   newly created process sysentvec to detect the linux ABI.
>   
>   Discussed with:	kib
>   
>   MFC after:	2 Week
> 
> Modified: head/sys/compat/linux/linux_emul.c
> ==============================================================================
> --- head/sys/compat/linux/linux_emul.c	Tue Mar  8 18:39:41 2011	(r219404)
> +++ head/sys/compat/linux/linux_emul.c	Tue Mar  8 19:01:45 2011	(r219405)
> @@ -300,13 +300,16 @@ linux_proc_exec(void *arg __unused, stru
>  }
>  
>  void
> -linux_schedtail(void *arg __unused, struct proc *p)
> +linux_schedtail(struct thread *td)
>  {
>  	struct linux_emuldata *em;
> +	struct proc *p;
>  	int error = 0;
>  	int *child_set_tid;
>  
> -	if (__predict_true(p->p_sysent != &elf_linux_sysvec))
> +	p = td->td_proc;
> +
> +	if (SV_PROC_ABI(p) != SV_ABI_LINUX)
>  		return;

Isn't this always false now?

-- 
John Baldwin