fix various typos in comments.

sys/compat: Memset zero before copyout.

Just in case of uninitialized padding which would lead to kernel
stack disclosure. If the compiler can prove the memset redundant
then it can optimize it awa

sys/compat: Memset zero before copyout.

Just in case of uninitialized padding which would lead to kernel
stack disclosure. If the compiler can prove the memset redundant
then it can optimize it away; otherwise better safe than sorry.

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KNF. No functional change.

Uninitialized var, found by mootja; not tested, but obvious enough

Merge from matt-nb5-mips64

Catch up with descriptor handling changes. See kern_descrip.c revision
1.173 for details.

Use FILE_LOCK() and FILE_UNLOCK().
Attempt to fix all the code paths so that the 'fp' returned by fd_getfile()
isn't left locked, and is always unlocked (and ref-counted) before
doing anything that m

Use FILE_LOCK() and FILE_UNLOCK().
Attempt to fix all the code paths so that the 'fp' returned by fd_getfile()
isn't left locked, and is always unlocked (and ref-counted) before
doing anything that might sleep.

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make this compile again.

Convert all the system call entry points from:
int foo(struct lwp *l, void *v, register_t *retval)
to:
int foo(struct lwp *l, const struct foo_args *uap, register_t *retval)
Fixup compat code

Convert all the system call entry points from:
int foo(struct lwp *l, void *v, register_t *retval)
to:
int foo(struct lwp *l, const struct foo_args *uap, register_t *retval)
Fixup compat code to not write into 'uap' and (in some cases) to actually
pass a correctly formatted 'uap' structure with the right name to the
next routine.
A few 'compat' routines that just call standard ones have been deleted.
All the 'compat' code compiles (along with the kernels required to test
build it).
98% done by automated scripts.

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Fallout from the interface ioctl changes:

OSIOCGIFADDR -> OOSIOCGIFADDR
OSIOCGIFDSTADDR -> OOSIOCGIFDSTADDR
OSIOCGIFNETMASK -> OOSIOCGIFNETMASK

Also, one instance of needing to include <net/if.h> b

Fallout from the interface ioctl changes:

OSIOCGIFADDR -> OOSIOCGIFADDR
OSIOCGIFDSTADDR -> OOSIOCGIFDSTADDR
OSIOCGIFNETMASK -> OOSIOCGIFNETMASK

Also, one instance of needing to include <net/if.h> before
<compat/sys/sockio.h> due to use of IFNAMSIZ in the latter.

Discussed with christos.

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Add a sockaddr_storage member to "struct ifreq" maintaining backwards
compatibility with the older ioctls. This avoids stack smashing and
abuse of "struct sockaddr" when ioctls placed "struct sockadd

Add a sockaddr_storage member to "struct ifreq" maintaining backwards
compatibility with the older ioctls. This avoids stack smashing and
abuse of "struct sockaddr" when ioctls placed "struct sockaddr_foo's" that
were longer than "struct sockaddr".
XXX: Some of the emulations might be broken; I tried to add code for
them but I did not test them.

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Merge newlock2 to head.

merge ktrace-lwp.

avoid shadow warnings

nuke trailing whitespace

Constify the speedtab arrays

ANSIfy, some KNF.

Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

Fix 'struct lwp *' lossage.

sort the ioctl's so we can see what we've implemented and what we have not.

Change 'data' argument to fo_ioctl and fo_fcntl from 'caddr_t' to 'void *'.
Avoids a lot of casting and removes the need for some line breaks.
Removed a load of (caddr_t) casts from calls to copyin/c

Change 'data' argument to fo_ioctl and fo_fcntl from 'caddr_t' to 'void *'.
Avoids a lot of casting and removes the need for some line breaks.
Removed a load of (caddr_t) casts from calls to copyin/copyout as well.
(approved by christos - he has a plan to remove caddr_t...)

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Merge the nathanw_sa branch.

add RCSIDs (including regeneration of files as appropriate)

Fix a partial construction problem that can cause race conditions
between creation of a file descriptor and close(2) when using kernel
assisted threads. What we do is stick descriptors in the table,

Fix a partial construction problem that can cause race conditions
between creation of a file descriptor and close(2) when using kernel
assisted threads. What we do is stick descriptors in the table, but
mark them as "larval". This causes essentially everything to treat
it as a non-existent descriptor, except for fdalloc(), which sees a
filled slot so that it won't (incorrectly) allocate it again. When
a descriptor is fully constructed, the code that has constructed it
marks it as "mature" (which actually clears the "larval" flag), and
things continue to work as normal.

While here, gather all the code that gets a descriptor from the table
into a fd_getfile() function, and call it, rather than having the
same (sometimes incorrect) code copied all over the place.

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use _KERNEL_OPT.