memmem with NUL length "needle" (aka small) strings on FreeBSD/OSX returns
NULL instead of the "haystack" value (aka big)

Submitted by: pho
Sponsored by: EMC / Isilon Storage Division
Use 1 as a random seed, as recommended in srandom(3). Adjust the random values
accordingly

Submitted by: pho
Sponsored by: EMC / Isilon Storage Division
Add #include <stdio.h> to get sys_nerr definition

Sponsored by: EMC / Isilon Storage Division
__isnanl is automatically picked according to data type in <math.h>. There
isn't a need for the explicit __isnanl test

Sponsored by: EMC / Isilon Storage Division
Only test the return value in mktime_negyear

Testing for the errno is an optional requirement according to POSIX, and
FreeBSD doesn't document that errno would be set on failure with mktime

Submitted by: pho
Sponsored by: EMC / Isilon Storage Division
Change ATF_REQUIRE_MSG calls to ATF_CHECK_MSG to get as many errors as possible

t_strptime:common..
- Expect the testcase body as a whole to fail. Multiple PRs will be filed to
track the issues (there are 18 check failures)

t_strptime:day..
- %EA and %OA seem to be case insensitive on FreeBSD
Add a tunable for arc_shrink_shift (vfs.zfs.arc_shrink_shift) that
controls how much fraction, 1/2^arc_shrink_shift, should be reclaimed
when there is memory pressure.

Submitted by:	Richard Kojedzinszky <krichy at tvnetwork.hu>
MFC after:	2 weeks
Make sure correct object code is generated at -O0.

Submitted by:	grehan@
Approved by:	so@ (des)
MFC after:	1 month
Eliminate unnecessary checking for M_EXT on mbufs returned by m_getjcl().

Reviewed by:	bz, glebius, yongari
MFC after:	3 days
Sponsored by:	EMC / Isilon Storage Division
Differential Revision:	https://reviews.freebsd.org/D938
Report physical block size for file-backed LUNs, using vattr.va_blocksize.

MFC after:	1 week
* Fix zeroing individual entries via ipfw(8).
* Report error and return non-zero exit code if zeroing non-matched entries

Found by:	Oleg Ginzburg
Show error when deleting non-existing rule number.

Found by:	Oleg Ginzburg
Add one more AMD Kaveri APU device ID.

Submitted by:	Remy Nonnenmacher <remy.nonnenmacher@activnetworks.com>
MFC after:	1 week
Fix matching default rule on clear/show commands.

Found by:	Oleg Ginzburg
Add support for READ DEFECT DATA (10/12) commands.

SPC-4 r2 allows to return empty defect list if the list is not supported.
We don't reallu support defect data lists, but this suppresses some errors.

MFC after:	1 week
Fix for build issue on i386.xen and amd64.xen.

This is a duplicate variable reference in mrsas, so now this patch isolate atomic_ variable and relavent
function call using prefix mrsas_xx.

Issue was introduced in r272737.

MFC after:	2 weeks
Sponsored by:	Avago Technology
Start removing the omap3 support. In base it was only ever a header and a
few changes to drivers, no kernel config was added. As the SoCs are quite
old and the code is unmaintained start the process of removing support by
deleting the header file and code that depends on it along with the macro
SOC_OMAP3. Other Ti SoCs shouldn't be affected, other than for us to have
less code to maintain.

Differential Revision:	https://reviews.freebsd.org/D936
Reviewed by:	rpaulo, loos
Sort the files in the am355x directory.
Don't confuse frontend with zero length data moves, just return immediately.

MFC after:	1 week
Remove the need for files.beaglebone and std.beaglebone by moving the one
option they defined into files.am335x.