On Wed, Jun 09, 2021 at 11:03:12PM +0900, Masami Hiramatsu wrote: > On Sat, 5 Jun 2021 11:44:45 +0800 > menglong8.dong@xxxxxxxxx wrote: > > > From: Menglong Dong <dong.menglong@xxxxxxxxxx> > > > > 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@xxxxxxxxxx/) > > 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@xxxxxxxxxx> > > Thank you, > Ok, thank you :/ Menglong Dong
