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-rw-r--r--fs/namespace.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/namespace.c b/fs/namespace.c
index 2019899f2ab8..e5aa1eeb5748 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)
1526 * pointed to by put_old must yield the same directory as new_root. No other 1526 * pointed to by put_old must yield the same directory as new_root. No other
1527 * file system may be mounted on put_old. After all, new_root is a mountpoint. 1527 * file system may be mounted on put_old. After all, new_root is a mountpoint.
1528 * 1528 *
1529 * Also, the current root cannot be on the 'rootfs' (initial ramfs) filesystem.
1530 * See Documentation/filesystems/ramfs-rootfs-initramfs.txt for alternatives
1531 * in this situation.
1532 *
1529 * Notes: 1533 * Notes:
1530 * - we don't move root/cwd if they are not at the root (reason: if something 1534 * - we don't move root/cwd if they are not at the root (reason: if something
1531 * cared enough to change them, it's probably wrong to force them elsewhere) 1535 * cared enough to change them, it's probably wrong to force them elsewhere)