From 4a0d11fae57989e24fe2ee3eff6d62d72db9716c Mon Sep 17 00:00:00 2001 From: Neil Brown Date: Sun, 8 Jan 2006 01:03:18 -0800 Subject: [PATCH] [PATCH] pivot_root: add comment Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/namespace.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/namespace.c b/fs/namespace.c index 2019899f2ab..e5aa1eeb574 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1526,6 +1526,10 @@ static void chroot_fs_refs(struct nameidata *old_nd, struct nameidata *new_nd) * pointed to by put_old must yield the same directory as new_root. No other * file system may be mounted on put_old. After all, new_root is a mountpoint. * + * Also, the current root cannot be on the 'rootfs' (initial ramfs) filesystem. + * See Documentation/filesystems/ramfs-rootfs-initramfs.txt for alternatives + * in this situation. + * * Notes: * - we don't move root/cwd if they are not at the root (reason: if something * cared enough to change them, it's probably wrong to force them elsewhere) -- 2.20.1