make minix lwip make explicit use of 'int'

makes lwip use "unsigned int" instead of "unsigned" since this is
more obvious (i.e. type is not implied).

Change-Id: I852eb80484516e1235241d55be3e15174fa24109
sys/stat.h: better align with NetBSD-current
Libpuffs: use struct timespec instead of time_t
Subsecond timestamps support for FS

Expand REQ_UTIME to include tv_nsec members
(as in struct timespec) in addition to tv_sec==time_t

Designed with help from David van Moolenbroek
Also apply sub-second UTIME to libpuffs
Reducing external/bsd/file differences

Change-Id: I0d025059ba0b200ac1162ea5a764fd756600ecd0
arm:cleanup remove special case memory handling.

We used to load the memory driver above the other modules to allow
the memory driver (ramdisk) to grow. We no longer want or need this
this as we have a working mmc driver.
arm:increase the amount of interrup vectors

Increase the amount of interrup vectors in preparation for the AM335X.
mmc:Change startup message in rc script.
arm:rs232 fix.

The kernel API for requesting interrupts and the associated callback
have a somewhat strange behaviour. Requesting an interrupts is done
by calling sys_irqsetpolicy using an interrupt and a given id. This
id can be modified by the sys_irqsetpolicy and must be used for
subsequent calls to sys_irqenable/sys_irqdisable. However upon an
incoming call from the kernel NOTIFY_ARG contains the original value
encoded in a set e.g. if  1 << id == true the interrupt was raised.
arm:cleanup omap serial, remove unused defines.
arm:cleanup add assert.
arm_sdimage:hide non fatal errors.

Redirect the output of the command that are supposed to fail to
/dev/null.
cleanup:misc documentation fix.
utimens(2) system call

Variant of utime(2) with struct timespec (with ns precision)
instead of time_t values; also allows for tv_nsec members
the values UTIME_NOW (force update to current time) or
UTIME_OMIT (allow to set either atim or mtim independently.)

Provides a superset of utimes(2), futimes(2), lutimes(2),
and futimens(2).
Provides the same subset of utimensat(2) as does NetBSD 6.
Also import utimens() and lutimeNS() from NetBSD-current.
Add tests for utime*s() functions
remove utimes() workarounds

With the addition of utimes(), we can remove the workarounds
and use the original NetBSD code for timestamping files.

Also restore use of -p & -r for install while building
rs232: remove unneeded lock()/unlock() functions

Change-Id: Ie1d2a7f460132aa59791cd7d16c9068b79675f1b
vfs: make m_out non-global

m_out is shared between threads as the reply message, and it can happen
results get overwritten by another thread before the reply is sent. This
change

	. makes m_out local to the message handling function,
	  declared on the stack of the caller
	. forces callers of reply() to give it a message, or
	  declare the reply message has no significant fields except
	  for the return code by calling replycode()

Change-Id: Id06300083a63c72c00f34f86a5c7d96e4bbdf9f6