linux-kernel - Re: [PATCH] early init: open /dev/console with O

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Date:   Wed, 1 Jan 2020 21:27:27 +0800
From:   youling 257 <youling257@...il.com>
To:     Dominik Brodowski <linux@...inikbrodowski.net>
Cc:     Arvind Sankar <nivedita@...m.mit.edu>,
        torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
        viro@...iv.linux.org.uk
Subject: Re: [PATCH] early init: open /dev/console with O_LARGEFILE

Unfortunately, test this patch still no help, has system/bin/sh warning.

2020-01-01 18:43 GMT+08:00, Dominik Brodowski <linux@...inikbrodowski.net>:
> @youling 257: could you test the attached patch, please?
>
> Thanks,
> 	Dominik
>
> On Tue, Dec 31, 2019 at 07:30:19PM -0500, Arvind Sankar wrote:
>> On Tue, Dec 31, 2019 at 04:02:26PM +0100, Dominik Brodowski wrote:
>> > If force_o_largefile() is true, /dev/console used to be opened
>> > with O_LARGEFILE. Retain that behaviour.
>> >
>>
>> One other thing that used to happen is fsnotify_open() -- I don't know
>> how that might affect this, but it seems like the only thing left that's
>> different.
>
> Suggested-by: Arvind Sankar <nivedita@...m.mit.edu>
> Signed-off-by: Dominik Brodowski <linux@...inikbrodowski.net>
>
> diff --git a/init/main.c b/init/main.c
> index d12777775cb0..3f4163046200 100644
> --- a/init/main.c
> +++ b/init/main.c
> @@ -94,6 +94,7 @@
>  #include <linux/jump_label.h>
>  #include <linux/mem_encrypt.h>
>  #include <linux/file.h>
> +#include <linux/fsnotify.h>
>
>  #include <asm/io.h>
>  #include <asm/bugs.h>
> @@ -1166,6 +1167,7 @@ void console_on_rootfs(void)
>  			  O_RDWR | (force_o_largefile() ? O_LARGEFILE : 0), 0);
>  	if (IS_ERR(file))
>  		goto err_out;
> +	fsnotify_open(file);
>
>  	/* create stdin/stdout/stderr, this should never fail */
>  	for (i = 0; i < 3; i++) {
>