gvinum: Remove kernel support

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D48541

Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

Disconnect GBDE from the build. (Per earlier announcements of retirement.)

sys: Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Create a new GEOM utility, gunion(8).

The gunion(8) utility is used to track changes to a read-only disk on
a writable disk. Logically, a writable disk is placed over a read-only
disk. Write request

Create a new GEOM utility, gunion(8).

The gunion(8) utility is used to track changes to a read-only disk on
a writable disk. Logically, a writable disk is placed over a read-only
disk. Write requests are intercepted and stored on the writable
disk. Read requests are first checked to see if they have been
written on the top (writable disk) and if found are returned. If
they have not been written on the top disk, then they are read from
the lower disk.

The gunion(8) utility can be especially useful if you have a large
disk with a corrupted filesystem that you are unsure of how to
repair. You can use gunion(8) to place another disk over the corrupted
disk and then attempt to repair the filesystem. If the repair fails,
you can revert all the changes in the upper disk and be back to the
unchanged state of the lower disk thus allowing you to try another
approach to repairing it. If the repair is successful you can commit
all the writes recorded on the top disk to the lower disk.

Another use of the gunion(8) utility is to try out upgrades to your
system. Place the upper disk over the disk holding your filesystem
that is to be upgraded and then run the upgrade on it. If it works,
commit it; if it fails, revert the upgrade.

Further details can be found in the gunion(8) manual page.

Reviewed by: Chuck Silvers, kib (earlier version)
tested by: Peter Holm
Differential Revision: https://reviews.freebsd.org/D32697

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Remove GEOM_SCHED class and gsched tool.

This code was not actively maintained since it was introduced 10 years ago.
It lacks support for many later GEOM features, such as direct dispatch,
unmapped

Remove GEOM_SCHED class and gsched tool.

This code was not actively maintained since it was introduced 10 years ago.
It lacks support for many later GEOM features, such as direct dispatch,
unmapped I/O, stripesize/stripeoffset, resize, etc. Plus it is the only
remaining use of GEOM nstart/nend request counters, used there to implement
live insertion/removal, questionable by itself. Plus, as number of people
commented, GEOM is not the best place for I/O scheduler, since it has
limited information about layers both above and below it, required for
efficient scheduling. Plus with the modern shift to SSDs there is just no
more significant need for this kind of scheduling.

Approved by: imp, phk, luigi
Relnotes: yes

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sys/modules: normalize .CURDIR-relative paths to SRCTOP

This simplifies make output/logic

Tested with: `cd sys/modules; make ALL_MODULES=` on amd64
MFC after: 1 month
Sponsored by: Dell EMC Isilon

Merge ^/head r313896 through r314128.

- Allow different slicers for different flash types to be registered
with geom_flashmap(4) and teach it about MMC for slicing enhanced
user data area partitions. The FDT slicer still is the defau

- Allow different slicers for different flash types to be registered
with geom_flashmap(4) and teach it about MMC for slicing enhanced
user data area partitions. The FDT slicer still is the default for
CFI, NAND and SPI flash on FDT-enabled platforms.
- In addition to a device_t, also pass the name of the GEOM provider
in question to the slicers as a single device may provide more than
provider.
- Build a geom_flashmap.ko.
- Use MODULE_VERSION() so other modules can depend on geom_flashmap(4).
- Remove redundant/superfluous GEOM routines that either do nothing
or provide/just call default GEOM (slice) functionality.
- Trim/adjust includes

Submitted by: jhibbits (RouterBoard bits)
Reviewed by: jhibbits

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Merge ^/head r307736 through r308146.

Fix alignment issues on MIPS: align the pointers properly.

All the 5520 GEOM_ELI tests passed successfully on MIPS64EB.

Sponsored by: DARPA, AFRL
Sponsored by: HEIF5
Differential Revision: https://

Fix alignment issues on MIPS: align the pointers properly.

All the 5520 GEOM_ELI tests passed successfully on MIPS64EB.

Sponsored by: DARPA, AFRL
Sponsored by: HEIF5
Differential Revision: https://reviews.freebsd.org/D7905

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Merge ^/head r307383 through r307735.

Disable geom_eli module build on MIPS64 as it has alignment
issues and causes kernel panic.
ELI metadata is also not aligned properly for MIPS64 case.

Sponsored by: DARPA, AFRL
Sponsored by: HEIF5

Merge ^/head r295902 through r296006.

MFH

Sponsored by: The FreeBSD Foundation

Obsolete mkulzma(8) and geom_uncompress(4), their functionality
is now provided by mkuzip(8) and geom_uzip(4) respectively.

MFC after: 1 month

Merge sync of head

Merge from HEAD

Merge ^/head r277327 through r277718.

Add MK_CCD knob for building and installing ccd(4), ccdconfig, etc

MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division

Make ccd(4), et al conditional based on MK_CCD

IFC @r269962

Submitted by: Anish Gupta (akgupt3@gmail.com)

Merge head from 7/28

MFC @ r266724

An SVM update will follow this.

Disconnect the following geom classes from the kernel modules build:
BSD, FOX, MBR, PC98, SUNLABEL and VOL_FFS. They all have a modern
replacement. Also it is still possible build them manually.

Dis

Disconnect the following geom classes from the kernel modules build:
BSD, FOX, MBR, PC98, SUNLABEL and VOL_FFS. They all have a modern
replacement. Also it is still possible build them manually.

Discussed with: geom

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