The changes here are not responsible for changing the behavior of /proc/mounts or /etc/mtab. /etc/mtab is a symbolic link to /proc/self/mounts. /proc/self/mounts is owned by the kernel. The reverse is actually true. The changes in the kernel resulted in df needing to be modified to handle the changes in behavior.
The changes here are not responsible for changing the behavior of /proc/mounts or /etc/mtab. /etc/mtab is a symbolic link to /proc/self/mounts. /proc/self/mounts is owned by the kernel. The reverse is actually true. The changes in the kernel resulted in df needing to be modified to handle the changes in behavior.