From: Menglong Dong <menglong8.dong@gmail.com>
To: Masami Hiramatsu <mhiramat@kernel.org>
Cc: christian.brauner@ubuntu.com, viro@zeniv.linux.org.uk,
keescook@chromium.org, samitolvanen@google.com, johan@kernel.org,
ojeda@kernel.org, jeyu@kernel.org, masahiroy@kernel.org,
joe@perches.com, dong.menglong@zte.com.cn, jack@suse.cz,
hare@suse.de, axboe@kernel.dk, tj@kernel.org,
gregkh@linuxfoundation.org, song@kernel.org, neilb@suse.de,
akpm@linux-foundation.org, linux@rasmusvillemoes.dk,
brho@google.com, f.fainelli@gmail.com, palmerdabbelt@google.com,
wangkefeng.wang@huawei.com, rostedt@goodmis.org, vbabka@suse.cz,
glider@google.com, pmladek@suse.com, johannes.berg@intel.com,
ebiederm@xmission.com, jojing64@gmail.com, terrelln@fb.com,
geert@linux-m68k.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, mcgrof@kernel.org, arnd@arndb.de,
chris@chrisdown.name, mingo@kernel.org, bhelgaas@google.com,
josh@joshtriplett.org
Subject: Re: [PATCH v6 0/2] init/initramfs.c: make initramfs support pivot_root
Date: Wed, 9 Jun 2021 23:36:21 -0700 [thread overview]
Message-ID: <20210610063621.GA83644@www> (raw)
In-Reply-To: <20210609230312.54f3f0ba9bb2ce93b9f5c4a3@kernel.org>
On Wed, Jun 09, 2021 at 11:03:12PM +0900, Masami Hiramatsu wrote:
> On Sat, 5 Jun 2021 11:44:45 +0800
> menglong8.dong@gmail.com wrote:
>
> > From: Menglong Dong <dong.menglong@zte.com.cn>
> >
> > As Luis Chamberlain suggested, I split the patch:
> > [init/initramfs.c: make initramfs support pivot_root]
> > (https://lore.kernel.org/linux-fsdevel/20210520154244.20209-1-dong.menglong@zte.com.cn/)
> > into three.
> >
> > The goal of the series patches is to make pivot_root() support initramfs.
> >
> > In the first patch, I introduce the function ramdisk_exec_exist(), which
> > is used to check the exist of 'ramdisk_execute_command' in LOOKUP_DOWN
> > lookup mode.
> >
> > In the second patch, I create a second mount, which is called
> > 'user root', and make it become the root. Therefore, the root has a
> > parent mount, and it can be umounted or pivot_root.
> >
> > In the third patch, I fix rootfs_fs_type with ramfs, as it is not used
> > directly any more, and it make no sense to switch it between ramfs and
> > tmpfs, just fix it with ramfs to simplify the code.
>
> Hi,
>
> I have tested this series on qemu with shell script container on initramfs.
> It works for me!
>
> Tested-by: Masami Hiramatsu <mhiramat@kernel.org>
>
> Thank you,
>
Ok, thank you :/
Menglong Dong
prev parent reply other threads:[~2021-06-10 6:37 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-05 3:44 [PATCH v6 0/2] init/initramfs.c: make initramfs support pivot_root menglong8.dong
2021-06-05 3:44 ` [PATCH v6 1/2] init/main.c: introduce function ramdisk_exec_exist() menglong8.dong
2021-06-05 3:44 ` [PATCH v6 2/2] init/do_mounts.c: create second mount for initramfs menglong8.dong
2021-06-05 11:50 ` Christian Brauner
2021-06-05 14:47 ` Menglong Dong
2021-06-07 10:31 ` Christian Brauner
2021-06-07 12:15 ` menglong8.dong
2021-06-17 3:57 ` Menglong Dong
2021-06-17 14:38 ` Christian Brauner
2021-07-27 12:24 ` Menglong Dong
2021-07-27 12:37 ` Christian Brauner
2021-07-28 8:07 ` Petr Mladek
2021-07-29 13:25 ` Menglong Dong
2021-09-17 1:58 ` Menglong Dong
2021-06-09 14:03 ` [PATCH v6 0/2] init/initramfs.c: make initramfs support pivot_root Masami Hiramatsu
2021-06-10 6:36 ` Menglong Dong [this message]
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