- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

- Use int8_t type for the mftrecsz field in g_label_ntfs. char type
used previously caused probe failure on platforms where char is unsigned
(e.g. ARM), as mftrecsz can be negative.

Submitted by: Ilya Bakulin <ilya@bakulin.de>
MFC after: 2 weeks

g_label_ntfs_taste: Abort taste is recsize == 0

This will avoid a 0-byte read (in g_read_data()) leading to a panic, if
previously read data are erroneous.

Suggested by: John-Mark Gurney <jmg@funkthat.com>

g_label_ntfs.c: Mark structures as __packed

Without this, read data is mis-interpreted. This could trigger a panic,
as was the case on one computer where computed "recsize" was zero,
leading to a call to g_read_page() asking for 0 bytes.

Remove ntfs headers dependency for g_label_ntfs.c by redefining the
used structs and values.

This patch is not targeted for MFC.

Provide a set of sysctls and tunables to disable device node creation
for specific "kinds" of disk labels - for example, GPT UUIDs. Reason
for this is that sometimes, other GEOM classes attach to these device
nodes instead of the proper ones - e.g. they attach to /dev/gptid/XXX
instead of /dev/ada0p2, which is annoying.

Reviewed by: pjd (earlier version)
MFC after: 1 month

Style cleanups.

X-MFC-after: Already MFCed to RELENG_6 by accident.

We do nothing with returned error value, so just remove it.

Check value returned by g_read_data(9), otherwise we can end in panic(9)
if read error happens.

MFC after: 1 week

Add checking for File record magic.

Verify length of the data to read as well.

Add NTFS labeling function.

Reviewed by:pjd