[Bug 2065180] Re: performance regression in dracut-install 060

[Benjamin Drung]

https://salsa.debian.org/kernel-team/initramfs-
tools/-/merge_requests/114 got merged after some iterations. This can be
a breaking change. To restore the previous behavior, call
`apply_add_modules` without arguments after a `manual_add_modules` call.

I checked all Ubuntu source packages that call manual_add_modules for
possible regressions:

```
ac100-tarball-installer
amd64-microcode
aoetools
asahi-scripts
autopkgtest
bcachefs-tools
bcache-tools
bilibop
bootcd
brltty
casper
clevis
cloud-initramfs-tools
cryptsetup
dmraid
flashcache
fsprotect
fuse
fuse3
initramfs-tools
initramfs-tools-ubuntu-core
intel-microcode
librem-ec-acpi
live-boot
ltsp
lvm2
miniramfs
multipath-tools
mythbuntu-diskless
nbd
nvidia-graphics-drivers-384
olpc-xo1
open-infrastructure-system-boot
open-infrastructure-system-tools
open-iscsi
open-vm-tools
osk-sdl
r8168
rapiddisk
s390-tools
sysconfig
tcos
thin-provisioning-tools
unl0kr
v86d
zfcpdump-kernel
zfs-linux
```

amd64-microcode and initramfs-tools have following snippet:

```
if dpkg --compare-versions "${version}" lt 4.4 ; then
    manual_add_modules microcode && {
        # force_load has broken semanthics when the .ko file is missing
        find "${DESTDIR}/${MODULESDIR}" -type f -print | grep -qc '/microcode\.ko$' && {
          verbose "modular microcode driver detected"
          force_load microcode
        }
    }
fi
```

Ubuntu 16.04 LTS "Xenial Xerus" comes with Linux 4.4. Let's assume that
we do not support kernel version < 4.4 in Ubuntu 24.04 LTS "Noble
Numbat".

miniramfs just uses parts from initramfs-tools and need to call
`apply_add_modules`.

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https://bugs.launchpad.net/bugs/2065180

Title:
  performance regression in dracut-install 060

Status in Dracut:
  New
Status in cryptsetup package in Ubuntu:
  Fix Released
Status in dracut package in Ubuntu:
  New
Status in lvm2 package in Ubuntu:
  Fix Released
Status in thin-provisioning-tools package in Ubuntu:
  Fix Released

Bug description:
  When compared to Ubuntu 23.10, creating intramfs files with update-
  initramfs takes 2 to 5 times more time on ARM devices.

  IIUC, dracut-install usage was added to initramfs-tools to speed up
  the process. But now its way slower. Even running update-initramfs on
  jammy, which doesn't use dracut-install, is way faster then the time
  taken on Noble.

  first bad commit -
  https://github.com/dracutdevs/dracut/commit/3de4c7313260fb600507c9b87f780390b874c870

  $ lsb_release -rd
  No LSB modules are available.
  Description:	Ubuntu 24.04 LTS
  Release:	24.04

  $ apt-cache policy dracut-install
  dracut-install:
    Installed: 060+5-1ubuntu3
    Candidate: 060+5-1ubuntu3
    Version table:
   *** 060+5-1ubuntu3 500
          500 http://ports.ubuntu.com/ubuntu-ports noble/main arm64 Packages
          100 /var/lib/dpkg/status

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