The geom_part provider supports unmapped bio iff the underlying
provider does so, since geom_part never inspects the bio_data.

Sponsored by: The FreeBSD Foundation
Tested by: pho

MFC @248093

Support the FAT16 partition type in gpart(8)

PR: kern/174714
Submitted by: 4721 at hushmail dot com
MFC after: 1 week

MFC

MFC @ r241285

IFC @ r242684

Sync from head

g_part_taste: directly destroy consumer and geom here, no need for withering

Besides withered but still alive consumers may interfere with
re-tatsing.

MFC after: 16 days

Merge head r233826 through r240095.

Remove unneeded G_PF_CANDELETE flag.

This flag is only used by GEOM so it can be propagated to the character
device's SI_CANDELETE. Unfortunately, SI_CANDELETE seems to do nothing.

Merge head r233826 through r239010.

Implement media change notification for DA and CD removable media devices.
It includes three parts:
1) Modifications to CAM to detect media media changes and report them to
disk(9) layer. For modern

Implement media change notification for DA and CD removable media devices.
It includes three parts:
1) Modifications to CAM to detect media media changes and report them to
disk(9) layer. For modern SATA (and potentially UAS) devices it utilizes
Asynchronous Notification mechanism to receive events from hardware.
Active polling with TEST UNIT READY commands with 3 seconds period is used
for incapable hardware. After that both CD and DA drivers work the same way,
detecting two conditions: "NOT READY: Medium not present" after medium was
detected previously, and "UNIT ATTENTION: Not ready to ready change, medium
may have changed". First one reported to disk(9) as media removal, second
as media insert/change. To reliably receive second event new
AC_UNIT_ATTENTION async added to make UAs broadcasted to all periphs by
generic error handling code in cam_periph_error().
2) Modifications to GEOM core to handle media remove and change events.
Media removal handled by spoiling all consumers attached to the provider.
Media change event also schedules provider retaste after spoiling to probe
new media. New flag G_CF_ORPHAN was added to consumers to reflect that
consumer is in process of destruction. It allows retaste to create new
geom instance of the same class, while previous one is still dying.
3) Modifications to some GEOM classes: DEV -- to report media change
events to devd; VFS -- to handle spoiling same as orphan to prevent
accessing replaced media. PART class already handles spoiling alike to
orphan.

Reviewed by: silence on geom@ and scsi@
Tested by: avg
Sponsored by: iXsystems, Inc. / PC-BSD
MFC after: 2 months

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Make it possible to resize opened partitions.

Sponsored by: FreeBSD Foundation

IFC @ r238370

IFC @ r236291.
Diff reductions to the enclosure driver made in r235911.

Merge head r233826 through r236168.

Add a partition type for nandfs to the apm, bsd, gpt and vtoc8 schemes.
The gpart alias for these partition types is "freebsd-nandfs".

MFC

Merge head r233826 through r234834.

IFC @ r234692

sys/amd64/include/cpufunc.h
sys/amd64/include/fpu.h
sys/amd64/amd64/fpu.c
sys/amd64/vmm/vmm.c

- Add API to allow vmm FPU state init/save/restore.

FP stuff discussed with: kib

VMware environments are not unusual now. Add VMware partitions recognition
(both MBR for ESXi <= 4.1 and GPT for ESXi 5) to g_part.

Reviewed by: ae
Approved by: ae
MFC after: 2 weeks

Merge head r232686 through r233825 into projects/pf/head.

Check that scheme is not already registered. This may happens when a
KLD is preloaded with loader(8) and leads to infinity loops.

Also do not return EEXIST error code from MOD_LOAD handler, because

Check that scheme is not already registered. This may happens when a
KLD is preloaded with loader(8) and leads to infinity loops.

Also do not return EEXIST error code from MOD_LOAD handler, because
we have undocumented(?) ability replace kernel's module with preloaded one.
And if we have so, then preloaded module will be initialized first.
Thus error in MOD_LOAD handler will be triggered for the kernel.

PR: kern/165573
MFC after: 3 weeks

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Make kern.geom.part node not static. Also add CTLFLAG_TUN to the
check_integrity sysctl.

MFC after: 1 month

Add MODULE_DEPEND() to geom_part modules.

MFC after: 2 weeks