[PATCH RESEND 00/62] initrd: remove classic initrd support
Andy Shevchenko
andy.shevchenko at gmail.com
Wed Sep 24 05:48:14 AEST 2025
”cpio” archive is initramfs and not initrd, isn’t it ?
вівторок, 23 вересня 2025 р. Christophe Leroy <christophe.leroy at csgroup.eu>
пише:
>
>
> Le 13/09/2025 à 02:37, Askar Safin a écrit :
>
>> [Vous ne recevez pas souvent de courriers de safinaskar at gmail.com.
>> Découvrez pourquoi ceci est important à https://aka.ms/LearnAboutSende
>> rIdentification ]
>>
>> Intro
>> ====
>> This patchset removes classic initrd (initial RAM disk) support,
>> which was deprecated in 2020.
>> Initramfs still stays, and RAM disk itself (brd) still stays, too.
>> init/do_mounts* and init/*initramfs* are listed in VFS entry in
>> MAINTAINERS, so I think this patchset should go through VFS tree.
>> This patchset touchs every subdirectory in arch/, so I tested it
>> on 8 (!!!) archs in Qemu (see details below).
>> Warning: this patchset renames CONFIG_BLK_DEV_INITRD (!!!) to
>> CONFIG_INITRAMFS
>> and CONFIG_RD_* to CONFIG_INITRAMFS_DECOMPRESS_* (for example,
>> CONFIG_RD_GZIP to CONFIG_INITRAMFS_DECOMPRESS_GZIP).
>> If you still use initrd, see below for workaround.
>>
>
> Apologise if my question looks stupid, but I'm using QEMU for various
> tests, and the way QEMU is started is something like:
>
> qemu-system-ppc -kernel ./vmlinux -cpu g4 -M mac99 -initrd
> ./qemu/rootfs.cpio.gz
>
> I was therefore expecting (and fearing) it to fail with your series
> applied, but surprisingly it still works.
>
> Therefore is it really initrd you are removing or just some corner case ?
> If it is really initrd, then how does QEMU still work with that -initrd
> parameter ?
>
> Thanks
> Christophe
>
>
>> Details
>> ====
>> I not only removed initrd, I also removed a lot of code, which
>> became dead, including a lot of code in arch/.
>>
>> Still I think the only two architectures I touched in non-trivial
>> way are sh and 32-bit arm.
>>
>> Also I renamed some files, functions and variables (which became
>> misnomers) to proper names,
>> moved some code around, removed a lot of mentions of initrd
>> in code and comments. Also I cleaned up some docs.
>>
>> For example, I renamed the following global variables:
>>
>> __initramfs_start
>> __initramfs_size
>> phys_initrd_start
>> phys_initrd_size
>> initrd_start
>> initrd_end
>>
>> to:
>>
>> __builtin_initramfs_start
>> __builtin_initramfs_size
>> phys_external_initramfs_start
>> phys_external_initramfs_size
>> virt_external_initramfs_start
>> virt_external_initramfs_end
>>
>> New names precisely capture meaning of these variables.
>>
>> Also I renamed CONFIG_BLK_DEV_INITRD (which became total misnomer)
>> to CONFIG_INITRAMFS. And CONFIG_RD_* to CONFIG_INITRAMFS_DECOMPRESS_*.
>> This will break all configs out there (update your configs!).
>> Still I think this is okay,
>> because config names never were part of stable API.
>> Still, I don't have strong opinion here, so I can drop these renamings
>> if needed.
>>
>> Other user-visible changes:
>>
>> - Removed kernel command line parameters "load_ramdisk" and
>> "prompt_ramdisk", which did nothing and were deprecated
>> - Removed kernel command line parameter "ramdisk_start",
>> which was used for initrd only (not for initramfs)
>> - Removed kernel command line parameter "noinitrd",
>> which was inconsistent: it controlled initrd only
>> (not initramfs), except for EFI boot, where it
>> controlled both initramfs and initrd. EFI users
>> still can disable initramfs simply by not passing it
>> - Removed kernel command line parameter "ramdisk_size",
>> which used for controlling ramdisk (brd), but only
>> in non-modular mode. Use brd.rd_size instead, it
>> always works
>> - Removed /proc/sys/kernel/real-root-dev . It was used
>> for initrd only
>>
>> This patchset is based on v6.17-rc5.
>>
>> Testing
>> ====
>> I tested my patchset on many architectures in Qemu using my Rust
>> program, heavily based on mkroot [1].
>>
>> I used the following cross-compilers:
>>
>> aarch64-linux-musleabi
>> armv4l-linux-musleabihf
>> armv5l-linux-musleabihf
>> armv7l-linux-musleabihf
>> i486-linux-musl
>> i686-linux-musl
>> mips-linux-musl
>> mips64-linux-musl
>> mipsel-linux-musl
>> powerpc-linux-musl
>> powerpc64-linux-musl
>> powerpc64le-linux-musl
>> riscv32-linux-musl
>> riscv64-linux-musl
>> s390x-linux-musl
>> sh4-linux-musl
>> sh4eb-linux-musl
>> x86_64-linux-musl
>>
>> taken from this directory [2].
>>
>> So, as you can see, there are 18 triplets, which correspond to 8 subdirs
>> in arch/.
>>
>> And note that this list contains two archs (arm and sh) touched in
>> non-trivial way.
>>
>> For every triplet I tested that:
>> - Initramfs still works (both builtin and external)
>> - Direct boot from disk still works
>>
>> Workaround
>> ====
>> If "retain_initrd" is passed to kernel, then initramfs/initrd,
>> passed by bootloader, is retained and becomes available after boot
>> as read-only magic file /sys/firmware/initrd [3].
>>
>> No copies are involved. I. e. /sys/firmware/initrd is simply
>> a reference to original blob passed by bootloader.
>>
>> This works even if initrd/initramfs is not recognized by kernel
>> in any way, i. e. even if it is not valid cpio archive, nor
>> a fs image supported by classic initrd.
>>
>> This works both with my patchset and without it.
>>
>> This means that you can emulate classic initrd so:
>> link builtin initramfs to kernel. In /init in this initramfs
>> copy /sys/firmware/initrd to some file in / and loop-mount it.
>>
>> This is even better than classic initrd, because:
>> - You can use fs not supported by classic initrd, for example erofs
>> - One copy is involved (from /sys/firmware/initrd to some file in /)
>> as opposed to two when using classic initrd
>>
>> Still, I don't recommend using this workaround, because
>> I want everyone to migrate to proper modern initramfs.
>> But still you can use this workaround if you want.
>>
>> Also: it is not possible to directly loop-mount
>> /sys/firmware/initrd . Theoretically kernel can be changed
>> to allow this (and/or to make it writable), but I think nobody needs this.
>> And I don't want to implement this.
>>
>> P. S. When I sent this patchset first time, zoho mail banned me for
>> too much email. So I resend this using gmail. The only change is
>> email change, there are no other changes
>>
>> [1] https://github.com/landley/toybox/tree/master/mkroot
>> [2] https://landley.net/toybox/downloads/binaries/toolchains/latest
>> [3] https://lore.kernel.org/all/20231207235654.16622-1-graf@amazon.com/
>>
>> Askar Safin (62):
>> init: remove deprecated "load_ramdisk" command line parameter, which
>> does nothing
>> init: remove deprecated "prompt_ramdisk" command line parameter, which
>> does nothing
>> init: sh, sparc, x86: remove unused constants RAMDISK_PROMPT_FLAG and
>> RAMDISK_LOAD_FLAG
>> init: x86, arm, sh, sparc: remove variable rd_image_start, which
>> controls starting block number of initrd
>> init: remove "ramdisk_start" command line parameter, which controls
>> starting block number of initrd
>> arm: init: remove special logic for setting brd.rd_size
>> arm: init: remove ATAG_RAMDISK
>> arm: init: remove FLAG_RDLOAD and FLAG_RDPROMPT
>> arm: init: document rd_start (in param_struct) as obsolete
>> initrd: remove initrd (initial RAM disk) support
>> init, efi: remove "noinitrd" command line parameter
>> init: remove /proc/sys/kernel/real-root-dev
>> ext2: remove ext2_image_size and associated code
>> init: m68k, mips, powerpc, s390, sh: remove Root_RAM0
>> doc: modernize Documentation/admin-guide/blockdev/ramdisk.rst
>> brd: remove "ramdisk_size" command line parameter
>> doc: modernize Documentation/filesystems/ramfs-rootfs-initramfs.rst
>> doc: modernize
>> Documentation/driver-api/early-userspace/early_userspace_support.rst
>> init: remove mentions of "ramdisk=" command line parameter
>> doc: remove Documentation/power/swsusp-dmcrypt.rst
>> init: remove all mentions of root=/dev/ram*
>> doc: remove obsolete mentions of pivot_root
>> init: rename __initramfs_{start,size} to
>> __builtin_initramfs_{start,size}
>> init: remove wrong comment
>> init: rename phys_initrd_{start,size} to
>> phys_external_initramfs_{start,size}
>> init: move phys_external_initramfs_{start,size} to init/initramfs.c
>> init: alpha: remove "extern unsigned long initrd_start, initrd_end"
>> init: alpha, arc, arm, arm64, csky, m68k, microblaze, mips, nios2,
>> openrisc, parisc, powerpc, s390, sh, sparc, um, x86, xtensa: rename
>> initrd_{start,end} to virt_external_initramfs_{start,end}
>> init: move virt_external_initramfs_{start,end} to init/initramfs.c
>> doc: remove documentation for block device 4 0
>> init: rename initrd_below_start_ok to initramfs_below_start_ok
>> init: move initramfs_below_start_ok to init/initramfs.c
>> init: remove init/do_mounts_initrd.c
>> init: inline create_dev into the only caller
>> init: make mount_root_generic static
>> init: make mount_root static
>> init: remove root_mountflags from init/do_mounts.h
>> init: remove most headers from init/do_mounts.h
>> init: make console_on_rootfs static
>> init: rename free_initrd_mem to free_initramfs_mem
>> init: rename reserve_initrd_mem to reserve_initramfs_mem
>> init: rename <linux/initrd.h> to <linux/initramfs.h>
>> setsid: inline ksys_setsid into the only caller
>> doc: kernel-parameters: remove [RAM] from reserve_mem=
>> doc: kernel-parameters: replace [RAM] with [INITRAMFS]
>> init: edit docs for initramfs-related configs
>> init: fix typo: virtul => virtual
>> init: fix comment
>> init: rename ramdisk_execute_command to initramfs_execute_command
>> init: rename ramdisk_command_access to initramfs_command_access
>> init: rename get_boot_config_from_initrd to
>> get_boot_config_from_initramfs
>> init: rename do_retain_initrd to retain_initramfs
>> init: rename kexec_free_initrd to kexec_free_initramfs
>> init: arm, x86: deal with some references to initrd
>> init: rename CONFIG_BLK_DEV_INITRD to CONFIG_INITRAMFS
>> init: rename CONFIG_RD_GZIP to CONFIG_INITRAMFS_DECOMPRESS_GZIP
>> init: rename CONFIG_RD_BZIP2 to CONFIG_INITRAMFS_DECOMPRESS_BZIP2
>> init: rename CONFIG_RD_LZMA to CONFIG_INITRAMFS_DECOMPRESS_LZMA
>> init: rename CONFIG_RD_XZ to CONFIG_INITRAMFS_DECOMPRESS_XZ
>> init: rename CONFIG_RD_LZO to CONFIG_INITRAMFS_DECOMPRESS_LZO
>> init: rename CONFIG_RD_LZ4 to CONFIG_INITRAMFS_DECOMPRESS_LZ4
>> init: rename CONFIG_RD_ZSTD to CONFIG_INITRAMFS_DECOMPRESS_ZSTD
>>
>> .../admin-guide/blockdev/ramdisk.rst | 104 +----
>> .../admin-guide/device-mapper/dm-init.rst | 4 +-
>> Documentation/admin-guide/devices.txt | 12 -
>> Documentation/admin-guide/index.rst | 1 -
>> Documentation/admin-guide/initrd.rst | 383 ------------------
>> .../admin-guide/kernel-parameters.rst | 4 +-
>> .../admin-guide/kernel-parameters.txt | 38 +-
>> Documentation/admin-guide/nfs/nfsroot.rst | 4 +-
>> Documentation/admin-guide/sysctl/kernel.rst | 6 -
>> Documentation/arch/arm/ixp4xx.rst | 4 +-
>> Documentation/arch/arm/setup.rst | 6 +-
>> Documentation/arch/m68k/kernel-options.rst | 29 +-
>> Documentation/arch/x86/boot.rst | 4 +-
>> .../early_userspace_support.rst | 18 +-
>> .../filesystems/ramfs-rootfs-initramfs.rst | 20 +-
>> Documentation/power/index.rst | 1 -
>> Documentation/power/swsusp-dmcrypt.rst | 140 -------
>> Documentation/security/ipe.rst | 2 +-
>> .../translations/zh_CN/power/index.rst | 1 -
>> arch/alpha/kernel/core_irongate.c | 12 +-
>> arch/alpha/kernel/proto.h | 2 +-
>> arch/alpha/kernel/setup.c | 32 +-
>> arch/arc/configs/axs101_defconfig | 2 +-
>> arch/arc/configs/axs103_defconfig | 2 +-
>> arch/arc/configs/axs103_smp_defconfig | 2 +-
>> arch/arc/configs/haps_hs_defconfig | 2 +-
>> arch/arc/configs/haps_hs_smp_defconfig | 2 +-
>> arch/arc/configs/hsdk_defconfig | 2 +-
>> arch/arc/configs/nsim_700_defconfig | 2 +-
>> arch/arc/configs/nsimosci_defconfig | 2 +-
>> arch/arc/configs/nsimosci_hs_defconfig | 2 +-
>> arch/arc/configs/nsimosci_hs_smp_defconfig | 2 +-
>> arch/arc/configs/tb10x_defconfig | 4 +-
>> arch/arc/configs/vdk_hs38_defconfig | 2 +-
>> arch/arc/configs/vdk_hs38_smp_defconfig | 2 +-
>> arch/arc/mm/init.c | 14 +-
>> arch/arm/Kconfig | 2 +-
>> arch/arm/boot/dts/arm/integratorap.dts | 2 +-
>> arch/arm/boot/dts/arm/integratorcp.dts | 2 +-
>> .../dts/aspeed/aspeed-bmc-facebook-cmm.dts | 2 +-
>> .../aspeed/aspeed-bmc-facebook-galaxy100.dts | 2 +-
>> .../aspeed/aspeed-bmc-facebook-minipack.dts | 2 +-
>> .../aspeed/aspeed-bmc-facebook-wedge100.dts | 2 +-
>> .../aspeed/aspeed-bmc-facebook-wedge40.dts | 2 +-
>> .../dts/aspeed/aspeed-bmc-facebook-yamp.dts | 2 +-
>> .../ast2600-facebook-netbmc-common.dtsi | 2 +-
>> arch/arm/boot/dts/hisilicon/hi3620-hi4511.dts | 2 +-
>> .../ixp/intel-ixp42x-welltech-epbx100.dts | 2 +-
>> arch/arm/boot/dts/nspire/nspire-classic.dtsi | 2 +-
>> arch/arm/boot/dts/nspire/nspire-cx.dts | 2 +-
>> .../boot/dts/samsung/exynos4210-origen.dts | 2 +-
>> .../boot/dts/samsung/exynos4210-smdkv310.dts | 2 +-
>> .../boot/dts/samsung/exynos4412-smdk4412.dts | 2 +-
>> .../boot/dts/samsung/exynos5250-smdk5250.dts | 2 +-
>> arch/arm/boot/dts/st/ste-nomadik-nhk15.dts | 2 +-
>> arch/arm/boot/dts/st/ste-nomadik-s8815.dts | 2 +-
>> arch/arm/boot/dts/st/stm32429i-eval.dts | 2 +-
>> arch/arm/boot/dts/st/stm32746g-eval.dts | 2 +-
>> arch/arm/boot/dts/st/stm32f429-disco.dts | 2 +-
>> arch/arm/boot/dts/st/stm32f469-disco.dts | 2 +-
>> arch/arm/boot/dts/st/stm32f746-disco.dts | 2 +-
>> arch/arm/boot/dts/st/stm32f769-disco.dts | 2 +-
>> arch/arm/boot/dts/st/stm32h743i-disco.dts | 2 +-
>> arch/arm/boot/dts/st/stm32h743i-eval.dts | 2 +-
>> arch/arm/boot/dts/st/stm32h747i-disco.dts | 2 +-
>> arch/arm/boot/dts/st/stm32h750i-art-pi.dts | 2 +-
>> arch/arm/configs/aspeed_g4_defconfig | 8 +-
>> arch/arm/configs/aspeed_g5_defconfig | 8 +-
>> arch/arm/configs/assabet_defconfig | 4 +-
>> arch/arm/configs/at91_dt_defconfig | 4 +-
>> arch/arm/configs/axm55xx_defconfig | 2 +-
>> arch/arm/configs/bcm2835_defconfig | 2 +-
>> arch/arm/configs/clps711x_defconfig | 4 +-
>> arch/arm/configs/collie_defconfig | 4 +-
>> arch/arm/configs/davinci_all_defconfig | 2 +-
>> arch/arm/configs/exynos_defconfig | 4 +-
>> arch/arm/configs/footbridge_defconfig | 2 +-
>> arch/arm/configs/gemini_defconfig | 2 +-
>> arch/arm/configs/h3600_defconfig | 2 +-
>> arch/arm/configs/hisi_defconfig | 4 +-
>> arch/arm/configs/imx_v4_v5_defconfig | 2 +-
>> arch/arm/configs/imx_v6_v7_defconfig | 4 +-
>> arch/arm/configs/integrator_defconfig | 2 +-
>> arch/arm/configs/ixp4xx_defconfig | 2 +-
>> arch/arm/configs/keystone_defconfig | 2 +-
>> arch/arm/configs/lpc18xx_defconfig | 12 +-
>> arch/arm/configs/lpc32xx_defconfig | 4 +-
>> arch/arm/configs/milbeaut_m10v_defconfig | 2 +-
>> arch/arm/configs/multi_v4t_defconfig | 2 +-
>> arch/arm/configs/multi_v5_defconfig | 2 +-
>> arch/arm/configs/multi_v7_defconfig | 2 +-
>> arch/arm/configs/mvebu_v7_defconfig | 2 +-
>> arch/arm/configs/mxs_defconfig | 2 +-
>> arch/arm/configs/neponset_defconfig | 4 +-
>> arch/arm/configs/nhk8815_defconfig | 2 +-
>> arch/arm/configs/omap1_defconfig | 2 +-
>> arch/arm/configs/omap2plus_defconfig | 2 +-
>> arch/arm/configs/pxa910_defconfig | 2 +-
>> arch/arm/configs/pxa_defconfig | 4 +-
>> arch/arm/configs/qcom_defconfig | 2 +-
>> arch/arm/configs/rpc_defconfig | 2 +-
>> arch/arm/configs/s3c6400_defconfig | 4 +-
>> arch/arm/configs/s5pv210_defconfig | 4 +-
>> arch/arm/configs/sama5_defconfig | 4 +-
>> arch/arm/configs/sama7_defconfig | 2 +-
>> arch/arm/configs/shmobile_defconfig | 2 +-
>> arch/arm/configs/socfpga_defconfig | 2 +-
>> arch/arm/configs/sp7021_defconfig | 12 +-
>> arch/arm/configs/spear13xx_defconfig | 2 +-
>> arch/arm/configs/spear3xx_defconfig | 2 +-
>> arch/arm/configs/spear6xx_defconfig | 2 +-
>> arch/arm/configs/spitz_defconfig | 2 +-
>> arch/arm/configs/stm32_defconfig | 2 +-
>> arch/arm/configs/sunxi_defconfig | 2 +-
>> arch/arm/configs/tegra_defconfig | 2 +-
>> arch/arm/configs/u8500_defconfig | 4 +-
>> arch/arm/configs/versatile_defconfig | 2 +-
>> arch/arm/configs/vexpress_defconfig | 2 +-
>> arch/arm/configs/vf610m4_defconfig | 10 +-
>> arch/arm/configs/vt8500_v6_v7_defconfig | 2 +-
>> arch/arm/configs/wpcm450_defconfig | 2 +-
>> arch/arm/include/uapi/asm/setup.h | 10 -
>> arch/arm/kernel/atags_compat.c | 10 -
>> arch/arm/kernel/atags_parse.c | 16 +-
>> arch/arm/kernel/setup.c | 2 +-
>> arch/arm/mm/init.c | 24 +-
>> arch/arm64/configs/defconfig | 2 +-
>> arch/arm64/kernel/setup.c | 2 +-
>> arch/arm64/mm/init.c | 17 +-
>> arch/csky/kernel/setup.c | 24 +-
>> arch/csky/mm/init.c | 2 +-
>> arch/hexagon/configs/comet_defconfig | 2 +-
>> arch/loongarch/configs/loongson3_defconfig | 2 +-
>> arch/loongarch/kernel/mem.c | 2 +-
>> arch/loongarch/kernel/setup.c | 4 +-
>> arch/m68k/configs/amiga_defconfig | 2 +-
>> arch/m68k/configs/apollo_defconfig | 2 +-
>> arch/m68k/configs/atari_defconfig | 2 +-
>> arch/m68k/configs/bvme6000_defconfig | 2 +-
>> arch/m68k/configs/hp300_defconfig | 2 +-
>> arch/m68k/configs/mac_defconfig | 2 +-
>> arch/m68k/configs/multi_defconfig | 2 +-
>> arch/m68k/configs/mvme147_defconfig | 2 +-
>> arch/m68k/configs/mvme16x_defconfig | 2 +-
>> arch/m68k/configs/q40_defconfig | 2 +-
>> arch/m68k/configs/stmark2_defconfig | 2 +-
>> arch/m68k/configs/sun3_defconfig | 2 +-
>> arch/m68k/configs/sun3x_defconfig | 2 +-
>> arch/m68k/kernel/setup_mm.c | 12 +-
>> arch/m68k/kernel/setup_no.c | 12 +-
>> arch/m68k/kernel/uboot.c | 17 +-
>> arch/microblaze/kernel/cpu/mb.c | 2 +-
>> arch/microblaze/kernel/setup.c | 2 +-
>> arch/microblaze/mm/init.c | 12 +-
>> arch/mips/ath79/prom.c | 12 +-
>> arch/mips/configs/ath25_defconfig | 12 +-
>> arch/mips/configs/ath79_defconfig | 4 +-
>> arch/mips/configs/bcm47xx_defconfig | 2 +-
>> arch/mips/configs/bigsur_defconfig | 2 +-
>> arch/mips/configs/bmips_be_defconfig | 2 +-
>> arch/mips/configs/bmips_stb_defconfig | 14 +-
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>> arch/mips/configs/generic_defconfig | 2 +-
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>> arch/mips/configs/lemote2f_defconfig | 2 +-
>> arch/mips/configs/loongson2k_defconfig | 2 +-
>> arch/mips/configs/loongson3_defconfig | 2 +-
>> arch/mips/configs/malta_defconfig | 2 +-
>> arch/mips/configs/mtx1_defconfig | 2 +-
>> arch/mips/configs/rb532_defconfig | 2 +-
>> arch/mips/configs/rbtx49xx_defconfig | 2 +-
>> arch/mips/configs/rt305x_defconfig | 4 +-
>> arch/mips/configs/sb1250_swarm_defconfig | 2 +-
>> arch/mips/configs/xway_defconfig | 4 +-
>> arch/mips/kernel/setup.c | 53 ++-
>> arch/mips/mm/init.c | 2 +-
>> arch/mips/sibyte/common/cfe.c | 36 +-
>> arch/mips/sibyte/swarm/setup.c | 2 +-
>> arch/nios2/kernel/setup.c | 20 +-
>> arch/openrisc/configs/or1klitex_defconfig | 2 +-
>> arch/openrisc/configs/or1ksim_defconfig | 4 +-
>> arch/openrisc/configs/simple_smp_defconfig | 14 +-
>> arch/openrisc/configs/virt_defconfig | 2 +-
>> arch/openrisc/kernel/setup.c | 24 +-
>> arch/openrisc/kernel/vmlinux.h | 2 +-
>> arch/parisc/boot/compressed/misc.c | 2 +-
>> arch/parisc/configs/generic-32bit_defconfig | 2 +-
>> arch/parisc/configs/generic-64bit_defconfig | 2 +-
>> arch/parisc/defpalo.conf | 2 +-
>> arch/parisc/kernel/pdt.c | 6 +-
>> arch/parisc/kernel/setup.c | 8 +-
>> arch/parisc/mm/init.c | 32 +-
>> arch/powerpc/configs/44x/akebono_defconfig | 2 +-
>> arch/powerpc/configs/44x/arches_defconfig | 2 +-
>> arch/powerpc/configs/44x/bamboo_defconfig | 2 +-
>> arch/powerpc/configs/44x/bluestone_defconfig | 2 +-
>> .../powerpc/configs/44x/canyonlands_defconfig | 2 +-
>> arch/powerpc/configs/44x/ebony_defconfig | 2 +-
>> arch/powerpc/configs/44x/eiger_defconfig | 2 +-
>> arch/powerpc/configs/44x/fsp2_defconfig | 10 +-
>> arch/powerpc/configs/44x/icon_defconfig | 2 +-
>> arch/powerpc/configs/44x/iss476-smp_defconfig | 2 +-
>> arch/powerpc/configs/44x/katmai_defconfig | 2 +-
>> arch/powerpc/configs/44x/rainier_defconfig | 2 +-
>> arch/powerpc/configs/44x/redwood_defconfig | 2 +-
>> arch/powerpc/configs/44x/sam440ep_defconfig | 2 +-
>> arch/powerpc/configs/44x/sequoia_defconfig | 2 +-
>> arch/powerpc/configs/44x/taishan_defconfig | 2 +-
>> arch/powerpc/configs/44x/warp_defconfig | 2 +-
>> arch/powerpc/configs/52xx/cm5200_defconfig | 2 +-
>> arch/powerpc/configs/52xx/lite5200b_defconfig | 2 +-
>> arch/powerpc/configs/52xx/motionpro_defconfig | 2 +-
>> arch/powerpc/configs/52xx/tqm5200_defconfig | 2 +-
>> arch/powerpc/configs/83xx/asp8347_defconfig | 2 +-
>> .../configs/83xx/mpc8313_rdb_defconfig | 2 +-
>> .../configs/83xx/mpc8315_rdb_defconfig | 2 +-
>> .../configs/83xx/mpc832x_rdb_defconfig | 2 +-
>> .../configs/83xx/mpc834x_itx_defconfig | 2 +-
>> .../configs/83xx/mpc834x_itxgp_defconfig | 2 +-
>> .../configs/83xx/mpc836x_rdk_defconfig | 2 +-
>> .../configs/83xx/mpc837x_rdb_defconfig | 2 +-
>> arch/powerpc/configs/85xx/ge_imp3a_defconfig | 2 +-
>> arch/powerpc/configs/85xx/ksi8560_defconfig | 2 +-
>> arch/powerpc/configs/85xx/socrates_defconfig | 2 +-
>> arch/powerpc/configs/85xx/stx_gp3_defconfig | 2 +-
>> arch/powerpc/configs/85xx/tqm8540_defconfig | 2 +-
>> arch/powerpc/configs/85xx/tqm8541_defconfig | 2 +-
>> arch/powerpc/configs/85xx/tqm8548_defconfig | 2 +-
>> arch/powerpc/configs/85xx/tqm8555_defconfig | 2 +-
>> arch/powerpc/configs/85xx/tqm8560_defconfig | 2 +-
>> .../configs/85xx/xes_mpc85xx_defconfig | 2 +-
>> arch/powerpc/configs/amigaone_defconfig | 2 +-
>> arch/powerpc/configs/cell_defconfig | 2 +-
>> arch/powerpc/configs/chrp32_defconfig | 2 +-
>> arch/powerpc/configs/fsl-emb-nonhw.config | 2 +-
>> arch/powerpc/configs/g5_defconfig | 2 +-
>> arch/powerpc/configs/gamecube_defconfig | 2 +-
>> arch/powerpc/configs/holly_defconfig | 2 +-
>> arch/powerpc/configs/linkstation_defconfig | 2 +-
>> arch/powerpc/configs/mgcoge_defconfig | 4 +-
>> arch/powerpc/configs/microwatt_defconfig | 2 +-
>> arch/powerpc/configs/mpc512x_defconfig | 2 +-
>> arch/powerpc/configs/mpc5200_defconfig | 2 +-
>> arch/powerpc/configs/mpc83xx_defconfig | 2 +-
>> arch/powerpc/configs/pasemi_defconfig | 2 +-
>> arch/powerpc/configs/pmac32_defconfig | 2 +-
>> arch/powerpc/configs/powernv_defconfig | 2 +-
>> arch/powerpc/configs/ppc44x_defconfig | 2 +-
>> arch/powerpc/configs/ppc64_defconfig | 2 +-
>> arch/powerpc/configs/ppc64e_defconfig | 2 +-
>> arch/powerpc/configs/ppc6xx_defconfig | 2 +-
>> arch/powerpc/configs/ps3_defconfig | 2 +-
>> arch/powerpc/configs/skiroot_defconfig | 12 +-
>> arch/powerpc/configs/wii_defconfig | 2 +-
>> arch/powerpc/kernel/prom.c | 22 +-
>> arch/powerpc/kernel/prom_init.c | 6 +-
>> arch/powerpc/kernel/setup-common.c | 25 +-
>> arch/powerpc/kernel/setup_32.c | 2 +-
>> arch/powerpc/kernel/setup_64.c | 2 +-
>> arch/powerpc/mm/init_32.c | 2 +-
>> arch/powerpc/platforms/52xx/lite5200.c | 2 +-
>> arch/powerpc/platforms/83xx/km83xx.c | 2 +-
>> arch/powerpc/platforms/85xx/mpc85xx_mds.c | 2 +-
>> arch/powerpc/platforms/chrp/setup.c | 2 +-
>> .../platforms/embedded6xx/linkstation.c | 2 +-
>> .../platforms/embedded6xx/storcenter.c | 2 +-
>> arch/powerpc/platforms/powermac/setup.c | 8 +-
>> arch/riscv/configs/defconfig | 2 +-
>> arch/riscv/configs/nommu_k210_defconfig | 16 +-
>> arch/riscv/configs/nommu_virt_defconfig | 12 +-
>> arch/riscv/mm/init.c | 4 +-
>> arch/s390/boot/ipl_parm.c | 2 +-
>> arch/s390/boot/startup.c | 4 +-
>> arch/s390/configs/zfcpdump_defconfig | 2 +-
>> arch/s390/kernel/setup.c | 10 +-
>> arch/s390/mm/init.c | 2 +-
>> arch/sh/configs/apsh4a3a_defconfig | 2 +-
>> arch/sh/configs/apsh4ad0a_defconfig | 2 +-
>> arch/sh/configs/ecovec24-romimage_defconfig | 2 +-
>> arch/sh/configs/edosk7760_defconfig | 2 +-
>> arch/sh/configs/kfr2r09-romimage_defconfig | 2 +-
>> arch/sh/configs/kfr2r09_defconfig | 2 +-
>> arch/sh/configs/magicpanelr2_defconfig | 2 +-
>> arch/sh/configs/migor_defconfig | 2 +-
>> arch/sh/configs/rsk7201_defconfig | 2 +-
>> arch/sh/configs/rsk7203_defconfig | 2 +-
>> arch/sh/configs/sdk7786_defconfig | 8 +-
>> arch/sh/configs/se7206_defconfig | 2 +-
>> arch/sh/configs/se7705_defconfig | 2 +-
>> arch/sh/configs/se7722_defconfig | 2 +-
>> arch/sh/configs/se7751_defconfig | 2 +-
>> arch/sh/configs/secureedge5410_defconfig | 2 +-
>> arch/sh/configs/sh03_defconfig | 2 +-
>> arch/sh/configs/sh7757lcr_defconfig | 2 +-
>> arch/sh/configs/titan_defconfig | 2 +-
>> arch/sh/configs/ul2_defconfig | 2 +-
>> arch/sh/configs/urquell_defconfig | 2 +-
>> arch/sh/include/asm/setup.h | 1 -
>> arch/sh/kernel/head_32.S | 2 +-
>> arch/sh/kernel/setup.c | 27 +-
>> arch/sparc/boot/piggyback.c | 4 +-
>> arch/sparc/configs/sparc32_defconfig | 2 +-
>> arch/sparc/configs/sparc64_defconfig | 2 +-
>> arch/sparc/kernel/head_32.S | 4 +-
>> arch/sparc/kernel/head_64.S | 6 +-
>> arch/sparc/kernel/setup_32.c | 9 +-
>> arch/sparc/kernel/setup_64.c | 9 +-
>> arch/sparc/mm/init_32.c | 22 +-
>> arch/sparc/mm/init_64.c | 20 +-
>> arch/um/kernel/Makefile | 2 +-
>> arch/um/kernel/initrd.c | 6 +-
>> arch/x86/Kconfig | 2 +-
>> arch/x86/boot/header.S | 2 +-
>> arch/x86/boot/startup/sme.c | 2 +-
>> arch/x86/configs/i386_defconfig | 2 +-
>> arch/x86/configs/x86_64_defconfig | 2 +-
>> arch/x86/include/uapi/asm/bootparam.h | 7 +-
>> arch/x86/kernel/cpu/microcode/amd.c | 2 +-
>> arch/x86/kernel/cpu/microcode/core.c | 12 +-
>> arch/x86/kernel/cpu/microcode/intel.c | 2 +-
>> arch/x86/kernel/cpu/microcode/internal.h | 2 +-
>> arch/x86/kernel/devicetree.c | 2 +-
>> arch/x86/kernel/setup.c | 39 +-
>> arch/x86/mm/init.c | 8 +-
>> arch/x86/mm/init_32.c | 2 +-
>> arch/x86/mm/init_64.c | 2 +-
>> arch/x86/tools/relocs.c | 2 +-
>> arch/xtensa/Kconfig | 2 +-
>> arch/xtensa/boot/dts/csp.dts | 2 +-
>> arch/xtensa/configs/audio_kc705_defconfig | 2 +-
>> arch/xtensa/configs/cadence_csp_defconfig | 12 +-
>> arch/xtensa/configs/generic_kc705_defconfig | 2 +-
>> arch/xtensa/configs/nommu_kc705_defconfig | 12 +-
>> arch/xtensa/configs/smp_lx200_defconfig | 2 +-
>> arch/xtensa/configs/virt_defconfig | 2 +-
>> arch/xtensa/configs/xip_kc705_defconfig | 2 +-
>> arch/xtensa/kernel/setup.c | 26 +-
>> drivers/acpi/Kconfig | 2 +-
>> drivers/acpi/tables.c | 10 +-
>> drivers/base/firmware_loader/main.c | 2 +-
>> drivers/block/Kconfig | 8 +-
>> drivers/block/brd.c | 20 +-
>> drivers/firmware/efi/efi.c | 10 +-
>> .../firmware/efi/libstub/efi-stub-helper.c | 5 +-
>> drivers/gpu/drm/ci/arm.config | 2 +-
>> drivers/gpu/drm/ci/arm64.config | 2 +-
>> drivers/gpu/drm/ci/x86_64.config | 2 +-
>> drivers/of/fdt.c | 18 +-
>> fs/ext2/ext2.h | 9 -
>> fs/init.c | 14 -
>> include/asm-generic/vmlinux.lds.h | 8 +-
>> include/linux/ext2_fs.h | 13 -
>> include/linux/init_syscalls.h | 1 -
>> include/linux/initramfs.h | 26 ++
>> include/linux/initrd.h | 37 --
>> include/linux/root_dev.h | 1 -
>> include/linux/syscalls.h | 1 -
>> include/uapi/linux/sysctl.h | 1 -
>> init/.kunitconfig | 2 +-
>> init/Kconfig | 28 +-
>> init/Makefile | 6 +-
>> init/do_mounts.c | 28 +-
>> init/do_mounts.h | 42 --
>> init/do_mounts_initrd.c | 154 -------
>> init/do_mounts_rd.c | 334 ---------------
>> init/initramfs.c | 152 ++++---
>> init/main.c | 66 +--
>> kernel/sys.c | 7 +-
>> kernel/sysctl.c | 2 +-
>> kernel/umh.c | 2 +-
>> scripts/package/builddeb | 2 +-
>> .../ktest/examples/bootconfigs/tracing.bconf | 3 -
>> tools/testing/selftests/bpf/config.aarch64 | 2 +-
>> tools/testing/selftests/bpf/config.ppc64el | 2 +-
>> tools/testing/selftests/bpf/config.riscv64 | 2 +-
>> tools/testing/selftests/bpf/config.s390x | 2 +-
>> tools/testing/selftests/kho/vmtest.sh | 2 +-
>> .../testing/selftests/nolibc/Makefile.nolibc | 4 +-
>> tools/testing/selftests/vsock/config | 2 +-
>> .../selftests/wireguard/qemu/kernel.config | 2 +-
>> usr/Kconfig | 70 ++--
>> usr/Makefile | 2 +-
>> usr/initramfs_data.S | 4 +-
>> 385 files changed, 969 insertions(+), 2346 deletions(-)
>> delete mode 100644 Documentation/admin-guide/initrd.rst
>> delete mode 100644 Documentation/power/swsusp-dmcrypt.rst
>> create mode 100644 include/linux/initramfs.h
>> delete mode 100644 include/linux/initrd.h
>> delete mode 100644 init/do_mounts_initrd.c
>> delete mode 100644 init/do_mounts_rd.c
>>
>>
>> base-commit: 76eeb9b8de9880ca38696b2fb56ac45ac0a25c6c
>> --
>> 2.47.2
>>
>>
>>
>
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