CVS log for src/sys/uvm/uvm_swap.h

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Keyword substitution: kv
Default branch: MAIN

"retval = 0" should be "*retval = 0", should fix the broken build.

Rewrite !VMSWAP uvm_swap_stats() macro as a static function. NFCI.

From riastradh

Fix !VMSWAP build:
Added __unused for few local variables, which are used in VMSWAP block only.
Adjust !VMSWAP uvm_swap_stats() definition to make it build with compat code.
Copied "int (*uvm_swap_stats50)(...)" definition from uvm_swap to uvm_swapstub
to avoid missing uvm_swap_stats50 reference on linking.

Fixes INSTALL_CPMBR1400, INSTALL_ZYXELKX evbmips kernel configs as a result.

Reviewed by simon and phone in IRC (thanks).

Round of uvm.h cleanup.

The poorly named uvm.h is generally supposed to be for uvm-internal
users only.

- Narrow it to files that actually need it -- mostly files that need
  to query whether curlwp is the pagedaemon, which should maybe be
  exposed by an external header.

- Use uvm_extern.h where feasible and uvm_*.h for things not exposed
  by it.  We should split up uvm_extern.h but this will serve for now
  to reduce the uvm.h dependencies.

- Use uvm_stat.h and #ifdef UVMHIST uvm.h for files that use
  UVMHIST(ubchist), since ubchist is declared in uvm.h but the
  reference evaporates if UVMHIST is not defined, so we reduce header
  file dependencies.

- Make uvm_device.h and uvm_swap.h independently includable while
  here.

ok chs@

Sync with HEAD

allow NONE build

Resolve conflicts from sync-with-HEAD

Synch with HEAD

finish moving the compat code out.

Untangle the swapctl compat code mess. Welcome to lucky 13.

Move the swapstats compat code into the compat_netbsd module.

Without this, a kernel configured without COMPAT_13 and/or COMPAT_50
could not execute the compat swapstats code, even if the compat_netbsd
module had been loaded.

update from HEAD

Sync with HEAD

include decls for _MODULE

Lock before calling uvm_swap_stats(). Otherwise a race condition could
corrupt memory.

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

Pull up following revision(s) (requested by manu in ticket #1025):
	sys/compat/netbsd32/netbsd32_netbsd.c: revision 1.184
	sys/uvm/uvm_swap.c: revision 1.166
	sys/uvm/uvm_swap.h: revision 1.20
	sys/compat/netbsd32/netbsd32.h: revision 1.99
Properly translate struct swapent for COMPAT_NETBSD32
 Properly translate struct swapent for COMPAT_NETBSD32  (missing commit)

Properly translate struct swapent for COMPAT_NETBSD32

convert from CIRCLEQ to TAILQ
add uvm_swap_shutdown(), unused

Sync with HEAD.

sync with head

Remove public uvm_swap_stats() routine, keep it internal.

sync with head.

Sync w/ -current. 34 merge conflicts to follow.

sync with head

Sync with HEAD.

remove clause #3 from my license where there are no other
copyright holders involved.

- sync with head.
- move sched_changepri back to kern_synch.c as it doesn't know PPQ anymore.

sync with head.

TRUE -> true, FALSE -> false

Replace the Mach-derived boolean_t type with the C99 bool type.  A
future commit will replace use of TRUE and FALSE with true and false.

sync with head.

merge ktrace-lwp.

Sync with HEAD. Here we go again...

- make uvm_swap_stats acquire swap_syscall_lock by itsself
  so that callers don't need to acquire it beforehand.
- make swap_syscall_lock static.

make VMSWAP optional again.

wrap swap related code by #ifdef VMSWAP.  always #define VMSWAP for now.

revert "defflag VMSWAP" changes for now.
there seems to be far more people who don't want to edit
their kernel config files than i thought.

defflag VMSWAP.

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

Introduce uvm_swapisfull(), which computes the available swap space by
taking into account swap devices that are in the process of being removed.

de-__P()ify.

catch up with -current on kqueue branch

Catch up to -current.
(CVS: It's not just a program. It's an adventure!)

Move swapctl(SWAP_STATS) implementation to a separate function called
uvm_swap_stats(). This is done in order to allow COMPAT_* swapctl()
emulation to use it directly without going through sys_swapctl().

The problem with using sys_swapctl() there is that it involves
copying the swapent array to the stackgap, and this array's size
is not known at build time. Hence it would not be possible to
 ensure it would fit in the stackgap in any case.

Update thorpej_scsipi to -current as of a month ago

add support for ``swapctl -d'' (removing swap space).
improve handling of i/o errors in swap space.

reviewed by:  Chuck Cranor

Sync w/ -current.

Protect prototypes, certain macros, and inlines from userland.

restore rcsids

RCS ID police.

initial import of the new virtual memory system, UVM, into -current.

UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some
minor portions derived from the old Mach code.  i provided some help
getting swap and paging working, and other bug fixes/ideas.  chuck
silvers <chuq@chuq.com> also provided some other fixes.

this is the UVM kernel code portion.


this will be KNF'd shortly.  :-)

Initial revision