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Commit 4a0d11fa authored by Neil Brown's avatar Neil Brown Committed by Linus Torvalds
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[PATCH] pivot_root: add comment 



Signed-off-by: default avatarNeil Brown <neilb@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent c809406b

fs/namespace.c

+4 −0
Original line number Diff line number Diff line
@@ -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)