Use ps_ppid instead of ps_pptr->ps_pid in all places.
OK mpi@

remove unneeded includes in sys/kern
ok mpi@ miod@

Remove unused device poll functions.

Also remove unneeded includes of <sys/poll.h> and <sys/select.h>.

Some addenda from jsg@.

OK miod@ mpi@

Remove unused VOP_POLL().

OK mpi@

Clarify usage of __EV_POLL and __EV_SELECT

Make __EV_POLL specific to kqueue-based poll(2), to remove overlap
with __EV_SELECT that only select(2) uses.

OK millert@ mpi@

spelling

ok gnezdo@ semarie@ mpi@

Rename poll-compatibility flag to better reflect what it is.

While here prefix kernel-only EV flags with two underbars.

Suggested by kettenis@, ok visa@

Make spec_kqfilter() and cttykqfilter() behave like their corresponding
poll handler if the EV_OLDAPI flag is set.

ok visa@

Make fifo_kqfilter() honor FREAD|FWRITE just like fifo_poll() does.

Prevent generating events that do not correspond to how the fifo has been
opened.

ok visa@, millert@

Remove proc from the parameters of vn_lock(). The parameter is
unnecessary because curproc always does the locking.

OK mpi@

Clean up the parameters of VOP_LOCK() and VOP_UNLOCK(). It is always
curproc that does the locking or unlocking, so the proc parameter
is pointless and can be dropped.

OK mpi@, deraadt@

Remove almost unused `flags' argument of suser().

The account flag `ASU' will no longer be set but that makes suser()
mpsafe since it no longer mess with a per-process field.

No objection from mill

Remove almost unused `flags' argument of suser().

The account flag `ASU' will no longer be set but that makes suser()
mpsafe since it no longer mess with a per-process field.

No objection from millert@, ok tedu@, bluhm@

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Don't pull in <sys/file.h> just to get fcntl.h

ok deraadt@ krw@

it's not wrong, but it's not clear what the verauth check is for.
add a comment to this effect, and explain the intention.

add a concept of 'verified auth' to sessions. When set via ioctl,
the user and parent process are recorded. Later, this info may be tested
and used to bypass authorization requirements.
ie, doas won'

add a concept of 'verified auth' to sessions. When set via ioctl,
the user and parent process are recorded. Later, this info may be tested
and used to bypass authorization requirements.
ie, doas won't ask for your password again.
Great idea from henning.
ok deraadt guenther henning

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Remove the unused flags argument from VOP_UNLOCK().

torture tested on amd64, i386 and macppc
ok beck mpi stefan
"the change looks right" deraadt

remove stale lint annotations

remove code that's been #ifdef'ed out for 20 years

ok deraadt@

Pass fflag to VOP_POLL so vfs fifo functions can get at the file
flags to check FREAD/FWRITE if needed. This will be used by fifo_poll
to avoid checking the write end of the fifo when the fd is read

Pass fflag to VOP_POLL so vfs fifo functions can get at the file
flags to check FREAD/FWRITE if needed. This will be used by fifo_poll
to avoid checking the write end of the fifo when the fd is read-only.
OK guenther@

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Remove some includes include-what-you-use claims don't
have any direct symbols used. Tested for indirect use by compiling
amd64/i386/sparc64 kernels.

ok tedu@ deraadt@

primary change: move uvm_vnode out of vnode, keeping only a pointer.
objective: vnode.h doesn't include uvm_extern.h anymore.
followup changes: include uvm_extern.h or lock.h where necessary.
ok and

primary change: move uvm_vnode out of vnode, keeping only a pointer.
objective: vnode.h doesn't include uvm_extern.h anymore.
followup changes: include uvm_extern.h or lock.h where necessary.
ok and help from deraadt

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Introduce a kqfilter wrapper for the controlling tty device entry
which allows a correct registration of kqueue(2) notifications on
the /dev/tty instead of calling a function via a null pointer in
th

Introduce a kqfilter wrapper for the controlling tty device entry
which allows a correct registration of kqueue(2) notifications on
the /dev/tty instead of calling a function via a null pointer in
the ttkqfilter leading to a local DoS.

Surprisingly the same code is present in NetBSD since the kqueue
merge, but didn't make it to the OpenBSD for 10 years.

Thanks to Anton Yabchinskiy <arn-at-bestmx-dot-ru> for a GHCi crash
report and his willingness to test multiple diffs for over a week.

With input from nicm, ok miod, derraadt.

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Correct the links between threads, processes, pgrps, and sessions,
so that the process-level stuff is to/from struct process and not
struct proc. This fixes a bunch of problem cases in rthreads.
Bas

Correct the links between threads, processes, pgrps, and sessions,
so that the process-level stuff is to/from struct process and not
struct proc. This fixes a bunch of problem cases in rthreads.
Based on earlier work by blambert and myself, but mostly written
at c2k10.

Tested by many: deraadt, sthen, krw, ray, and in snapshots

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Since p_flag is often manipulated in interrupts and without biglock
it's a good idea to use atomic.h operations on it. This mechanic
change updates all bit operations on p_flag to atomic_{set,clear}b

Since p_flag is often manipulated in interrupts and without biglock
it's a good idea to use atomic.h operations on it. This mechanic
change updates all bit operations on p_flag to atomic_{set,clear}bits_int.

Only exception is that P_OWEUPC is set by MI code before calling
need_proftick and it's automatically cleared by ADDUPC. There's
no reason for MD handling of that flag since everyone handles it the
same way.

kettenis@ ok

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ansi/deregister. No binary change.