kernel: Remove explicit dependencies on <sys/malloc.h> in headers.

All except <net/if_var.h> for now, it needs decoupling in drm first.
* Include <sys/malloc.h> in foo.c if they have kmalloc()/kfr

kernel: Remove explicit dependencies on <sys/malloc.h> in headers.

All except <net/if_var.h> for now, it needs decoupling in drm first.
* Include <sys/malloc.h> in foo.c if they have kmalloc()/kfree() calls.
* Consistently check if MALLOC_DECLARE was declared before.
* <sys/mountctl.h>: include <sys/thread.h> for _KERNEL_STRUCTURES too
since the "struct journal" embeds "struct thread".
* <sys/tty.h>: Only two kernel sources makes use of M_TTYS.
* <sys/socketvar2.h>: Make it kernel only header.

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kernel: make pktinfo and cpuid native to ip_input()

In order to remove ether_input_pkt(), switch the prototype
of if_input() and adjust all callers. While there, consolidate
the style of the invoke

kernel: make pktinfo and cpuid native to ip_input()

In order to remove ether_input_pkt(), switch the prototype
of if_input() and adjust all callers. While there, consolidate
the style of the invoke.

Suggested and reviewed by: sephe

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netmap: reduce upstream diff output; bring back __FBSDIDs

netmap: change header includes

Suggested-by: sephe

FWIW, kqfilter() port is not really going well as poll() is doing
a bunch of loosely related drive-by actions that somehow form the
API. The best

netmap: change header includes

Suggested-by: sephe

FWIW, kqfilter() port is not really going well as poll() is doing
a bunch of loosely related drive-by actions that somehow form the
API. The best approach would be to thin out the implementation to
at least get the bare core functionality working. That'll also
include writing new userland glue. Feels more like a fork than a
port that way. :(

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netmap: d_poll -> d_kqfilter

netmap_poll() is a monster. No clue how to move it over
to the kqfilter API just yet.

netmap: fix all the cdev prototypes

While there, reduce diff noise against vanilla sources.

netmap: more porting; undo some mistakes

Probably adds new issues, too. There's some VM magic,
cdev_t adaption and a couple of network internals left.

netmap: lock(9), k*() foo, no ifdefs

The ifdef glue is a bit hard to see through. Remove it now to
bring it back later with appropriate ifdefs for DragonFly.

netmap: initial import of netmap core

Vanilla sources; not hooked up to the build.

Taken-from: https://code.google.com/p/netmap/ (3b385fe7854d)