CVS log for src/sys/sys/resourcevar.h

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Keyword substitution: kv
Default branch: MAIN

Pull up following revision(s) (requested by riastradh in ticket #1896):

	sys/sys/resourcevar.h: revision 1.58
	sys/kern/subr_time.c: revision 1.36
	sys/kern/subr_time.c: revision 1.37
	sys/kern/subr_time.c: revision 1.38
	sys/kern/kern_resource.c: revision 1.190
	sys/kern/kern_resource.c: revision 1.191
	tests/lib/libc/sys/t_clock_gettime.c: revision 1.4
	tests/lib/libc/sys/t_clock_gettime.c: revision 1.5
	tests/lib/libc/sys/t_clock_gettime.c: revision 1.6
	(all via patch)

kern: KASSERT(A && B) -> KASSERT(A); KASSERT(B)
White space fix.

kern_resource.c: Fix brace placement.
No functional change intended.

t_clock_gettime: Add test for PR kern/57512.

clock_gettime(2): Fix CLOCK_PROCESS/THREAD_CPUTIME_ID.
Use same calculation as getrusage, not some ad-hoc arithmetic of
internal scheduler parameters that are periodically rewound.
PR kern/57512

t_clock_gettime: Avoid signed/unsigned comparison.

Pull up following revision(s) (requested by riastradh in ticket #943):
	sys/sys/resourcevar.h: revision 1.58
	sys/kern/subr_time.c: revision 1.36
	sys/kern/subr_time.c: revision 1.37
	sys/kern/subr_time.c: revision 1.38
	sys/kern/kern_resource.c: revision 1.190
	sys/kern/kern_resource.c: revision 1.191
	tests/lib/libc/sys/t_clock_gettime.c: revision 1.4
	tests/lib/libc/sys/t_clock_gettime.c: revision 1.5
	tests/lib/libc/sys/t_clock_gettime.c: revision 1.6
kern: KASSERT(A && B) -> KASSERT(A); KASSERT(B)
White space fix.
kern_resource.c: Fix brace placement.
No functional change intended.
t_clock_gettime: Add test for PR kern/57512.
clock_gettime(2): Fix CLOCK_PROCESS/THREAD_CPUTIME_ID.
Use same calculation as getrusage, not some ad-hoc arithmetic of
internal scheduler parameters that are periodically rewound.
PR kern/57512
XXX pullup-8
XXX pullup-9
XXX pullup-10
t_clock_gettime: Avoid signed/unsigned comparison.

sys/sys: remove CONSTCOND comment from do-while-0 loop

Lint doesn't need this comment anymore, as there is nothing surprising
or unusual about this idiom.

clock_gettime(2): Fix CLOCK_PROCESS/THREAD_CPUTIME_ID.

Use same calculation as getrusage, not some ad-hoc arithmetic of
internal scheduler parameters that are periodically rewound.

PR kern/57512

XXX pullup-8
XXX pullup-9
XXX pullup-10

Sync with HEAD

Load the struct rusage text, data, and stack fields from the vmspace struct.
Before they were all 0. We update them when we call getrusage() or on
process exit() so that the children rusage is accounted for.

update from HEAD

Sync with HEAD (as of 26th Dec)

pull in resource.h

Don't nest structure definitions.

sync with (a bit old) head

Resync to 2012-11-19 00:00:00 UTC

Move rusage computation to a new getrusage1() function. Adjust all
compat/emulations to make use of it.

Catchup with rmind-uvmplock merge.

sync with head

Sync with HEAD.

Revert maxdmap/maxsmap constification, as it causes problems on some
sparc models.  Reported by tsutsui@.

Initial import of xen MP sources, with kernel and userspace tests.
 - this is a source priview.
 - boots to single user.
 - spurious interrupt and pmap related panics are normal

sync with head

- Sprinkle __read_mostly, consitify maxdmap and maxsmap.
- Prevent sys/resourcevar.h from inclusion in userland.
- sys_{set,get}priority: use id_t for 'who', not int.
- Make donice() routine static.
- Remove trailing spaces, KNF.

- Remove FORK_SHARELIMIT and PL_SHAREMOD, simplify lim_privatise().
- Use kmem(9) for struct plimit::pl_corename.

Merge duplicate code fragments into a new lim_setcorename() routine.

Rename limfree() to lim_free(), misc clean up.  No functional change.

sync with head.

Sync with HEAD.

Sync with HEAD.

merge christos-time_t

merge with head.

Fix ADDUPROF macro definition, to correctly use its argument.

ok by christos.

Sync with head.

Sync with HEAD.

Move uidinfo to its own module in kern_uidinfo.c and include in rump.
No functional change to uidinfo.

Put ui_lock back and use it to modify the socket buffer size.
Typecasting quad_t * to long * and using atomic_add_long can't
possibly be expected to work!

Another fine error caught by the gcc type-punning warning.  That
really really should be on by default in the kernel.

Sync with HEAD.

Welcome to the time_t=long long dev_t=uint64_t branch.

Make rusage collection per-LWP and collate in the appropriate places.
cloned threads need a little bit more work but the locking needs to
be fixed first.

sync with head.

sync with head.

sync with HEAD

- Replace uihashtbl_lock and struct uidinfo::ui_lock with atomic operations.
  This make uid_find(), chgproccnt(), chgsbsize() and lf_alloc(), lf_free()
  functions lock-less.
- Increase the size of uihashtbl in case of MP system, as suggested by <ad>.
- Add HASH_SLIST type for hashinit().

Reviewed by <ad>.

sync with head.

- Initialize uihashtbl in resource_init();
- Make some variables static, remove the externs from header;
- Wrap few long lines, misc;

No functional changes are intended.

Sync with HEAD.

sync with head

sync with HEAD

Sync with HEAD

Merge more changes from vmlocking2, mainly:

- Locking improvements.
- Use pool_cache for more items.

- Use pool_cache for a few more items and make those caches static.
- Mark another 10 syscalls MPSAFE including execve(). A small bit of
  work is required to fix a couple of issues (tty, kqueue).

sync with HEAD

sync with head.

Sync with head.

sync with head.

Sync with HEAD.

Change the way p->p_limit (and hence p->p_rlimit) is locked.
Should fix PR/36939 and make the rlimit code MP safe.
Posted for comment to tech-kern (non received!)

The p_limit field (for a process) is only be changed once (on the first
  write), and a reference to the old structure is kept (for code paths
  that have cached the pointer).
Only p->p_limit is now locked by p->p_mutex, and since the referenced memory
  will not go away, is only needed if the pointer is to be changed.
The contents of 'struct plimit' are all locked by pl_mutex, except that the
  code doesn't bother to acquire it for reads (which are basically atomic).
Add FORK_SHARELIMIT that causes fork1() to share the limits between parent
  and child, use it for the IRIX_PR_SULIMIT.
Fix borked test for both IRIX_PR_SUMASK and IRIX_PR_SDIR being set.

Rename members of 'struct plimit' so that the fields are 'pl_xxx' and
no longer have the same names as members of 'struct proc'.

sync with head.

Sync with head.

Since we went from struct simplelock to kmutex_t, we need
to include <sys/mutex.h> and not <sys/lock.h> here.

Sync with head.

Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

Sync with head.

- Pass the error number and residual count to biodone(), and let it handle
  setting error indicators. Prepare to eliminate B_ERROR.
- Add a flag argument to brelse() to be set into the buf's flags, instead
  of doing it directly. Typically used to set B_INVAL.
- Add a "struct cpu_info *" argument to kthread_create(), to be used to
  create bound threads. Change "bool mpsafe" to "int flags".
- Allow exit of LWPs in the IDL state when (l != curlwp).
- More locking fixes & conversion to the new API.

sync with head.

Remove comment about process stats not always being resident.
They are allocated from a pool and thus permanently resident.

- Put a lock around the proc's CWD info (work in progress).
- Replace some more simplelocks.
- Make lbolt a condvar.

Sync with HEAD.

use char* for the kernel representation of the user profile buffer
address too, for consistency
(we've lost some abstraction here)

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

sync with head.

Merge newlock2 to head.

- When clearing signals dequeue siginfo first and free later, once
  outside the lock permiter.
- Push kernel_lock back in a a couple of places.
- Adjust limcopy() to be MP safe (this needs redoing).
- Fix a couple of bugs noticed along the way.
- Catch up with condvar changes.

sync with head.

- Update for need_proftick() change.
- Make run time per-LWP and have calcru() compute the whole-process value.
- Minor locking changes.

sync with head

sync with head

This requires <sys/lock.h> - make it include it directly.

sync with head.

Sync with head.

sync with head.

move setid core externs near defcorename, as requested by yamt@.

merge ktrace-lwp.

Sync with HEAD. Here we go again...

since the vax gcc-2.95 does not like comma expressions, rewrite these as
while loops.

Separate the spl calls in UILOCK with a semicolon as the comma blows up on vax

lock all uses of uidhash. provide macros to lock and unlock. based on more
discussions with yamt.

PR/30154: YAMAMOTO Takashi: tcp_close locking botch
chgsbsize() as mentioned in the PR can be called from an interrupt context
via tcp_close(). Avoid calling uid_find() in chgsbsize().
- Instead of storing so_uid in struct socketvar, store *so_uidinfo
- Add a simple lock to struct uidinfo.

sync with -current

Sync with HEAD.

sync with head.

Add a member lockcnt to keep track of locks per uid. Add a uid_find() function
similar to the one in OpenBSD.

sync with head.

Sync with HEAD.

de-__P

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

Provide a mutex for the process limits data structure.

Commons are not allowed in header files.  extern them and declare them in
the appropriate .c file.

PR/9347: Eric E. Fair: socket buffer pool exhaustion leads to system deadlock
and unkillable processes.
1. Introduce new SBSIZE resource limit from FreeBSD to limit socket buffer
   size resource.
2. make sokvareserve interruptible, so processes ltsleeping on it can be
   killed.

Declare maxdmap and maxsmap.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

prototype must not have variable name

Merge the nathanw_sa branch.

Catch up to -current.

remove some lint

Initial commit of scheduler activations and lightweight process support.

Sync with HEAD (for UBC fixes).

Introduce PROC_PC(), which is used to get a process's user PC.  If this is
defined, call addupc_intr() directly from statclock() in the system time case,
using the same P_OWEUPC path if the copyin/copyout fails.
Use this in i386 to remove profiling code from the normal userret() path.

Remplace kern.shortcorename sysctl with a more flexible sheme,
core filename format, which allow to change the name of the core dump,
and to relocate it in a directory. Credits to Bill Sommerfeld for giving me
the idea :)
The default core filename format can be changed by options DEFCORENAME and/or
kern.defcorename
Create a new sysctl tree, proc, which holds per-process values (for now
the corename format, and resources limits). Process is designed by its pid
at the second level name. These values are inherited on fork, and the corename
fomat is reset to defcorename on suid/sgid exec.
Create a p_sugid() function, to take appropriate actions on suid/sgid
exec (for now set the P_SUGID flag and reset the per-proc corename).
Adjust dosetrlimit() to allow changing limits of one proc by another, with
credential controls.

Merge with Lite2 + local changes

Import 4.4BSD-Lite2

Import 4.4BSD-Lite for reference

represent profiling size, scale more correctly (as size_t, u_int, resp.)

KERNEL -> _KERNEL

protos for calcru and ruadd

New RCS ID's, take two.  they're more aesthecially pleasant, and use 'NetBSD'

new standard, minimally intrusive ID format

update to 4.4-Lite; no serious changes

ADDUPROF and friends

lots of changes: prototype migration, move lots of variables, definitions,
and structure elements around.  kill some unnecessary type and macro
definitions.  standardize clock handling.  More changes than you'd want.

fixing a typo

more 4.4-like resourcevar.h

some prototypes that weren't __P() protected; the pseudo-advantages
of trying to do a port using the native-compiler

add rcs ids as necessary, and also clean up headers

Add consistent multiple-inclusion protection.

initial import of 386bsd-0.1 sources

Initial revision