- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

MFC r286367:

Make some debug printf's into DPRINTF's to reduce noise on attach/detach

Differential Revision: https://reviews.freebsd.org/D3306
Reviewed by: loos
Sponsored by: EMC / Isilon Storage Division

MFC 268986; fix file system corruption by creating as many BIOs as needed
to satisfy the original request -- in other words: no short reads.

Obtained from: Juniper Networks, Inc.

MFC r260522, r260523, r261439, r261440, r261586, r264504, r264769, r265193,
r265194, r265197

r260522:
Add the manual page for geom_uncompress(4).

r260523:
Build the geom_uncompress(4) module by default.

Fix geom_uncompress(4) module loading. Don't link zlib.c (which is a module
itself) directly.

r261439:
Remove some unnecessary code. The offsets read from the first block are
overwritten a few lines bellow.

r261440:
Fix a logic error. Because of this inflateReset() wasn't being called and
the output buffer wasn't being cleared between the inflate() calls,
producing zeroed output after the first inflate() call.

This fixes the read of mkuzip(8) images with geom_uncompress(4).

r261586:
Fix the build with DEBUG enabled. Where possible, fix style(9) issues.

r264504:
Make sure not to do I/O for more than MAXPHYS bytes. Doing so can cause
problems in our providers, such as a KASSERT in md(4). We can initiate
I/O for more than MAXPHYS bytes if we've been given a BIO for MAXPHYS
bytes, the blocks from which we're reading couldn't be compressed and
we had compression in preceeding blocks resulting in misalignment of
the blocks we're trying to read relative to the sector. We're forced to
round up the I/O length to make it an multiple of the sector size.

When we detect the condition, we'll reduce the block count and perform
a "short" read. In g_uzip_done() we need to consider the original I/O
length and stop early if we're about to deflate a block that we didn't
read. By using bio_completed in the cloned BIO and not bio_length to
check for this, we automatically and gracefully handle short reads that
our providers may be doing on top of the short reads we may initiate
ourselves.

r264769:
Keep geom_uncompress(4) in line with geom_uzip(4), bring in the r264504 fix.

Make sure not to start I/O bigger than MAXPHYS bytes.

r265193:
Some style and whitespace fixes. Reduce the difference between geom_uzip(4)
and geom_uncompress(4). Now, they produce an almost clean diff(1) output.

Remove a duplicated variable from g_uncompress.c and an unnecessary header
from g_uzip.c.

r265194:
Actually the FEATURE() macro is defined on sys/sysctl.h.

r265197:
Fix a leak in g_uzip_taste(). After retrieve all the block offsets from
the uzip image, free the last data read.

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

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

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.

Fix orphan() methods of several GEOM classes to not assume that there
is an error set on the provider. With GEOM resizing, class can become
orphaned when it doesn't implement resize() method and the provider size
decreases.

Reviewed by: mav
Sponsored by: FreeBSD Foundation

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

This means that their use is restricted to a single C file.

Add some FEATURE macros for various GEOM classes.

No FreeBSD version bump, the userland application to query the features will
be committed last and can serve as an indication of the availablility if
needed.

Sponsored by: Google Summer of Code 2010
Submitted by: kibab
Reviewed by: silence on geom@ during 2 weeks
X-MFC after: to be determined in last commit with code from this project

Change the way in which zero stripesize is handled. Instead of reporting
zero stripeoffset in such case (as if device has no stripes), report offset
from the beginning of the media (as if device has single infinite stripe).

This gives partitioning tools information, required to guess better
partition alignment, in case if hardware doesn't report it's stripe size.
For example, it should give disklabel info about odd offset made by fdisk.

If provider is open for writing when we taste it, skip it for classes that
depend on on-disk metadata. This was we won't attach to providers that are used
by other classes. For example we don't want to configure partitions on da0 if
it is part of gmirror, what we really want is partitions on mirror/foo.

During regular work it works like this: if provider is open for writing a class
receives the spoiled event from GEOM and detaches, once provider is closed the
taste event is send again and class can rediscover its metadata if it is still
there. This doesn't work that way when new class arrives, because GEOM gives
all existing providers for it to taste, also those open for writing. Classes
have to decided on their own if they want to deal with such providers (eg.
geom_dev) or not (classes modified by this commit).

Reported by: des, Oliver Lehmann <lehmann@ans-netz.de>
Tested by: des, Oliver Lehmann <lehmann@ans-netz.de>
Discussed with: phk, marcel
Reviewed by: marcel
MFC after: 3 days

If compressed length is zero, return a zero-filled block.

MFC after: 1 week

Fix a bug for over 4GB media.

MFC after: 3 days

Rename geom_uzip class to g_uzip in order to be consistent with the naming
of other GEOM modules.

PR: 89998

Fix bio leak in case of malloc(9) failure.

Found by: Coverity Prevent(tm)
Coverity ID: CID794
MFC after: 3 days

Don't pass error value pointer to g_read_data(9) at all if we don't
have any use of it.

Suggested by: pjd

Check for g_read_data(9) errors properly:

o The only indication of error condition is NULL value returned by
the function;

o value pointed to by error argument is undefined in the case when
operation completes successfully.

Discussed with: phk

Normalize a significant number of kernel malloc type names:

- Prefer '_' to ' ', as it results in more easily parsed results in
memory monitoring tools such as vmstat.

- Remove punctuation that is incompatible with using memory type names
as file names, such as '/' characters.

- Disambiguate some collisions by adding subsystem prefixes to some
memory types.

- Generally prefer lower case to upper case.

- If the same type is defined in multiple architecture directories,
attempt to use the same name in additional cases.

Not all instances were caught in this change, so more work is required to
finish this conversion. Similar changes are required for UMA zone names.

- Fix "end_blk out of range" panic when INVARIANTS.
- Do not allow rw access.

Submitted by: Dario Freni <saturnero at freesbie dot org>
MFC after: 3 days

Use M_ZERO to not panic in mtx_init when INVARIANTS enabled.

Submitted by: simokawa
MFC after: 1 week

Use correct malloc type when freeing memory allocated by g_read_data.

PR: 71431
Submitted by: daichi

Do not compile in zlib.c. Add a dependency on module instead.

Add geom_uzip -- geom class that implements read-only compressed disks.
Currently supports cloop V2.0 disk compression format.
May support more formats in future.