Re: [RFC PATCH 04/35] syscalls: do not call sys_getpgid() within the kernel

2018-03-12 Thread Dominik Brodowski
On Mon, Mar 12, 2018 at 01:35:17AM -0700, Christoph Hellwig wrote:
> The subject (and lack of description) for this and the following patches
> is rather confusing.
> 
> I'd expect something like:
> 
>  snip 
> Subject: kernel: add a do_getpgid helper
> 
> And use it to avoid an in-kernel sys_getpgid call.
> 
>  snip 
> 
> instead.

Thanks, will expand the commit messages a bit.

Dominik


Re: [RFC PATCH 04/35] syscalls: do not call sys_getpgid() within the kernel

2018-03-12 Thread Christoph Hellwig
The subject (and lack of description) for this and the following patches
is rather confusing.

I'd expect something like:

 snip 
Subject: kernel: add a do_getpgid helper

And use it to avoid an in-kernel sys_getpgid call.

 snip 

instead.

On Sun, Mar 11, 2018 at 11:55:26AM +0100, Dominik Brodowski wrote:
> CC: Al Viro 
> Signed-off-by: Dominik Brodowski 
> ---
>  kernel/sys.c | 9 +++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/kernel/sys.c b/kernel/sys.c
> index f2289de20e19..ebb138b841c8 100644
> --- a/kernel/sys.c
> +++ b/kernel/sys.c
> @@ -1027,7 +1027,7 @@ SYSCALL_DEFINE2(setpgid, pid_t, pid, pid_t, pgid)
>   return err;
>  }
>  
> -SYSCALL_DEFINE1(getpgid, pid_t, pid)
> +static int do_getpgid(pid_t pid)
>  {
>   struct task_struct *p;
>   struct pid *grp;
> @@ -1055,11 +1055,16 @@ SYSCALL_DEFINE1(getpgid, pid_t, pid)
>   return retval;
>  }
>  
> +SYSCALL_DEFINE1(getpgid, pid_t, pid)
> +{
> + return do_getpgid(pid);
> +}
> +
>  #ifdef __ARCH_WANT_SYS_GETPGRP
>  
>  SYSCALL_DEFINE0(getpgrp)
>  {
> - return sys_getpgid(0);
> + return do_getpgid(0);
>  }
>  
>  #endif
> -- 
> 2.16.2
> 
---end quoted text---