linux-kernel - Re: [PATCH 2/4] exec: remove compat_do

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Message-ID: <596ca191-0176-e991-7318-f9a0f3361cb3@gmail.com>
Date:   Sat, 27 Mar 2021 22:56:29 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...il.com>
To:     Christoph Hellwig <hch@....de>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Al Viro <viro@...iv.linux.org.uk>
Cc:     Arnd Bergmann <arnd@...db.de>, Brian Gerst <brgerst@...il.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, x86@...nel.org,
        linux-mips@...r.kernel.org, linux-parisc@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
        sparclinux@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] exec: remove compat_do_execve

On 3/26/21 5:38 PM, Christoph Hellwig wrote:

> Just call compat_do_execve instead.

   compat_do_execveat(), maybe?

> Signed-off-by: Christoph Hellwig <hch@....de>
> ---
>  fs/exec.c | 17 +----------------
>  1 file changed, 1 insertion(+), 16 deletions(-)
> 
> diff --git a/fs/exec.c b/fs/exec.c
> index b63fb020909075..06e07278b456fa 100644
> --- a/fs/exec.c
> +++ b/fs/exec.c
[...]
> @@ -2072,7 +2057,7 @@ COMPAT_SYSCALL_DEFINE3(execve, const char __user *, filename,
>  	const compat_uptr_t __user *, argv,
>  	const compat_uptr_t __user *, envp)
>  {
> -	return compat_do_execve(getname(filename), argv, envp);
> +	return compat_do_execveat(AT_FDCWD, getname(filename), argv, envp, 0);
>  }
>  
>  COMPAT_SYSCALL_DEFINE5(execveat, int, fd,

MBR, Sergei