Commit Graph

33378 Commits

Author SHA1 Message Date
Peter Wemm
f59685a4b7 Avoid vm_page_lookup() [grabs a spinlock] and just process the upage
object memq instead.

Suggested by:	alc
2002-07-08 01:11:10 +00:00
Peter Wemm
64ca701084 Fix a hideous TLB bug. pmap_unmapdev neglected to remove the device
mappings from the page tables, which were mapped with PG_G!  We could
reuse the page table entry for another mapping (pmap_mapdev) but it
would never have cleared any remaining PG_G TLB entries.
2002-07-08 00:17:43 +00:00
Jake Burkholder
dd5629cde7 Enable netboot support by default, since it can now coexist with disk and
cdrom support.  This avoids having to distribute separate loaders.
2002-07-07 23:08:22 +00:00
Peter Wemm
a136efe9b6 Collect all the (now equivalent) pmap_new_proc/pmap_dispose_proc/
pmap_swapin_proc/pmap_swapout_proc functions from the MD pmap code
and use a single equivalent MI version.  There are other cleanups
needed still.

While here, use the UMA zone hooks to keep a cache of preinitialized
proc structures handy, just like the thread system does.  This eliminates
one dependency on 'struct proc' being persistent even after being freed.
There are some comments about things that can be factored out into
ctor/dtor functions if it is worth it.  For now they are mostly just
doing statistics to get a feel of how it is working.
2002-07-07 23:05:27 +00:00
Peter Wemm
1f0b8b7582 Update for post-kse3 pmap kthread allocation changes 2002-07-07 22:56:31 +00:00
Peter Wemm
61695d7ac8 Fix (s/proc/thread/) some typos in two panic messages. 2002-07-07 22:50:41 +00:00
Luigi Rizzo
c4ddb6caf5 Remove 0 initializers for global/static variables, so they end up in
BSS instead of DATA. This marginally reduces the kernel image size, though
the difference is almost irrelevant for compressed kernels.
2002-07-07 22:42:57 +00:00
Jeff Roberson
41a5470d03 - Require locks for getattr. At some point this could only require shared
locks.
2002-07-07 22:37:45 +00:00
Jeff Roberson
31965a72c9 - Delay unlocking a vnode in linker_hints_lookup until we're actually done
with it.
 - Remove a now stale comment about improper vnode locking.
2002-07-07 22:35:47 +00:00
Peter Wemm
b799f5a475 Make this compile on 64 bit platforms 2002-07-07 22:27:40 +00:00
Mark Peek
b0677c345c Change help documentation for bootfile and module_path to reflect
the actual code. Both use a ";" (not a ",") to delimit entries.

PR:		39679
Submitted by:	Cyrille Lefevre <cyrille.lefevre@laposte.net>
MFC after:	3 days
2002-07-07 20:40:31 +00:00
Alan Cox
25524d3eba o Lock accesses to the free queue(s) in vm_page_zero_idle(). 2002-07-07 19:27:57 +00:00
Warner Losh
22c0046f53 Make NEWCARD the default pccard/cardbus system. 2002-07-07 19:00:00 +00:00
Jake Burkholder
3238ad66ae Make building with ficl work. Unfortunately booting with it doesn't. 2002-07-07 18:23:10 +00:00
Jake Burkholder
f3f638b613 Build ficl on sparc64 fwiw. It doesn't work. 2002-07-07 18:10:38 +00:00
Maxime Henrion
44c9e34eda One #include <sys/lock.h> is enough.
Submitted by:	Olivier Houchard <cognet@ci0.org>
2002-07-07 18:05:42 +00:00
Jeff Roberson
5c08ffed5d - Use 'options DEBUG_VFS_LOCKS' instead of the DEBUG_ALL_VFS_LOCKS
environment variable to enable the lock verifiction code.
2002-07-07 06:39:36 +00:00
Jeff Roberson
18c48f437f - Don't hold the vn lock while calling VOP_CLOSE in vclean(). 2002-07-07 06:38:22 +00:00
Alan Cox
c7118ed61b o Traverse the object's memq rather than repeatedly calling vm_page_lookup()
in vm_object_split().
2002-07-07 06:01:25 +00:00
Jeff Roberson
bed75d4627 - BUF_REFCNT() seems to be the preferred method for verifying a locked buf.
Tell vop_strategy_pre() to use this instead.
 - Ignore B_CLUSTER bufs.  Their components are locked but they don't really
   exist so they don't have to be.  This isn't ideal but it is safe.
2002-07-07 05:29:45 +00:00
Jeff Roberson
49244e35ff Add two asserts that prove & document getblk and geteblk's behavior of
returning locked bufs.
2002-07-07 05:27:08 +00:00
Jeff Roberson
f6b5b182e8 - Hold a lock on the vnode acquired from the file table across the call to
vm_mmap() as well as the GETATTR etc.
 - If the handle is a vnode in vm_mmap() assert that it is locked.
 - Wiggle Giant around a little to account for the extra vnode operation.
2002-07-06 22:14:38 +00:00
Jeff Roberson
c031d11bb4 Fix a mistake in my last commit. Don't grab an extra reference to the object
in bp->b_object.
2002-07-06 21:27:20 +00:00
Alfred Perlstein
9bee881145 Cleanup after my de-__P (remove leading whitespace before prototype args).
Add newlines after function return types in function declarations.

Approved by: wpaul (a long time ago)
2002-07-06 16:34:32 +00:00
Alfred Perlstein
eaabec5530 Cleanup after my de-__P (remove leading whitespace before prototype args).
Add newlines after function return types in function declarations.

Approved by: wpaul (a long time ago)
2002-07-06 15:59:57 +00:00
Mitsuru IWASAKI
c169fc477d Fix wrong use of ACPI_NO_UNIT_LIMIT which is for as_maxunits, not as_units. 2002-07-06 13:59:59 +00:00
Jeff Roberson
9a236af3ad Fixup uses of GETVOBJECT.
- Cache a pointer to the vnode's object in the buf.
 - Hold a reference to that object in addition to the vnode's reference just
   to be consistent.
 - Cleanup code that got the object indirectly through the vp and VOP calls.

This fixes at least one case where we were calling GETVOBJECT without a lock.
It also avoids an expensive layered call at the cost of another pointer in
struct buf.
2002-07-06 08:59:52 +00:00
Julian Elischer
fe0f1bf4b1 make this repect ps_sigintr if there is a pre-existing signal
or suspension request.

Submitted by:	David Xu
2002-07-06 08:47:24 +00:00
Jeff Roberson
0b2ed1aef7 Clean up execve locking:
- Grab the vnode object early in exec when we still have the vnode lock.
 - Cache the object in the image_params.
 - Make use of the cached object in imgact_*.c
2002-07-06 07:00:01 +00:00
Jeff Roberson
e818064e98 - Disable original vop_strategy lock specification.
- Switch to the new vop_strategy_pre for lock validation.

VOP_STRATEGY requires only that the buf is locked UNLESS the block numbers need
to be translated.  There may be other reasons, but as long as the underlying
layer uses a VOP to perform the operations they will be caught later.
2002-07-06 05:23:17 +00:00
Jeff Roberson
302c7aaab9 - Add vop_strategy_pre to validate VOP_STRATEGY locking.
- Disable original vop_strategy lock specification.
 - Switch to the new vop_strategy_pre for lock validation.

VOP_STRATEGY requires only that the buf is locked UNLESS the block numbers need
to be translated.  There may be other reasons, but as long as the underlying
layer uses a VOP to perform the operations they will be caught later.
2002-07-06 05:21:12 +00:00
Jeff Roberson
13e407efee Use the new #! directive for vop_rename. Leave the old lock specification
intact but disabled.
2002-07-06 04:41:27 +00:00
Jeff Roberson
cc8662b0f9 Add "vop_rename_pre" to do pre rename lock verification. This is enabled only
with DEBUG_VFS_LOCKS.
2002-07-06 04:39:48 +00:00
Jeff Roberson
d1376090b2 Add a new configuration directive that inserts calls to debugging functions
in the VOP inlines.  This is intended to replace the simple locking
specifications for calls that have more complicated behavior such as rename and
lookup.

The syntax of the new entries is:
#! name	pre/post	function

If the function is marked 'pre' it is executed prior to calling the VOP and
takes a pointer to a struct vop_{name}_args as it's only parameter.

If the function is marked 'post' it is executed after the VOP call and takes
a pointer to a struct vop_{name}_args as it's first parameter and the integer
return value from the vop as the second paramter.
2002-07-06 03:46:36 +00:00
David E. O'Brien
ce03184300 Make space for compilations. 2002-07-06 02:49:07 +00:00
Julian Elischer
55fb7ca894 Fix at least one of the things wrong with signals
^Z should work a lot better now.

Submitted by:	peter@freebsd.org
2002-07-06 02:45:11 +00:00
Andrew Gallatin
a83560d677 Remove the advertising clause from the Duke BSD copyright on the
zero-copy files

Requested by: rwatson
Approved by: Jeff Chase (my old boss at Duke)
2002-07-06 02:44:15 +00:00
Andrew Gallatin
f784043a9f Remove bogus vm_page_wakeup() in vm_page_cowfault() that will cause panics
in the zero-copy send path if a process attempts to write to a page
which is still in flight.

reviewed by: ken
2002-07-05 23:33:27 +00:00
Luigi Rizzo
5e43aef891 Implement the last 2-3 missing instructions for ipfw,
now it should support all the instructions of the old ipfw.

Fix some bugs in the user interface, /sbin/ipfw.

Please check this code against your rulesets, so i can fix the
remaining bugs (if any, i think they will be mostly in /sbin/ipfw).

Once we have done a bit of testing, this code is ready to be MFC'ed,
together with a bunch of other changes (glue to ipfw, and also the
removal of some global variables) which have been in -current for
a couple of weeks now.

MFC after: 7 days
2002-07-05 22:43:06 +00:00
Jeff Roberson
17b9cc4941 Fix a lock order reversal in uma_zdestroy. The uma_mtx needs to be held across
calls to zone_drain().

Noticed by:	scottl
2002-07-05 21:39:52 +00:00
Warner Losh
e0b7446484 dd %i as an alias for %d for greater compatibility with our *BSD bretheren
Obtained from: NetBSD
Reviewed by: jake, rwatson, bosko
2002-07-05 18:36:49 +00:00
Benno Rice
f00abca0c4 Add bmtphy.c 2002-07-05 11:08:55 +00:00
Benno Rice
2e2ec02fd6 regenerate 2002-07-05 11:07:42 +00:00
Benno Rice
d82bc4fba8 Add a driver for the Broadcom BCM52xx "mini-theta" PHY. This includes the
internal PHY on the 3COM 3C905B and 3C905C parts, however I've rigged it so
that xlphy (aka exphy) takes precedence for the time being.

If people try this with their xl cards and decide that it's a better choice,
we can switch this later.

This is the PHY used in various iMacs and possibly other GMAC-equipped
Macintoshes with 10/100 PHYs (the ones with 10/100/1000 appear to use brgphy).

Obtained from:	NetBSD
2002-07-05 11:07:24 +00:00
Benno Rice
daec3648eb Use 3C905C instead of 3c905Cphy as the identifier for the Broadcom PHY used
in the 3C905C.  This is mainly cosmetic.

I'm doing this mainly so we share the same identifier as NetBSD.
2002-07-05 11:02:17 +00:00
Alan Cox
21f1b5331f o Lock accesses to the free page queues in contigmalloc1(). 2002-07-05 06:43:32 +00:00
Jeff Roberson
d0641e4e8c Cleanups for vnode lock debugging.
- Tell IS_LOCKING_VFS to ignore block and character devices.  specfs vnodes
aren't locked for io and they just generate lots of false positives.
 - Add newlines to the badlock prints.
2002-07-05 05:51:25 +00:00
Jeff Roberson
f5118d6aaf Remove unnecessary includes. 2002-07-05 05:16:19 +00:00
Jeff Roberson
2efc89d4dc Include systm.h before vnode.h so Debugger() and printf() are available when
full vnode lock debugging is enabled.
2002-07-05 05:15:30 +00:00
Peter Wemm
7b719ec324 Back out proc part of last commit. UMA manages the thread cache only, and
we just have to deal with the kstack when told to.  We do not have a
UMA-managed cache for the proc struct and its associated upage yet.  So,
go back to the old lazy mechanism.  Note that if UMA destroys pages that
used to contain proc structures, we'll lose the corresponding upage
forever.  (zones never did this - once a page was allocated, it stayed
attached to the proc zone forever)
2002-07-05 01:27:35 +00:00
Peter Wemm
361323eac6 Copy from sparc64/pmap.c rev 1.64 (Retrofit changes from i386/pmap.c
rev 1.328-1.331.) but for uarea only.  We still have our own broken
kstack code here.
2002-07-05 00:42:09 +00:00
Peter Wemm
0b306e55c6 Take a shot at implementing changes from i386/pmap.c rev 1.328-1.331. 2002-07-05 00:38:43 +00:00
Peter Wemm
a5ac5be2e6 Turn on BPF_ALIGN for all non-i386 platforms, instead of having an
ifdef list that currently lists all the non-i386 platforms that bpf
currently works on.
2002-07-05 00:06:08 +00:00
John Polstra
5ddc57942f Disable hardware checksum offloading of IP fragments in the bge
driver.  I tried a few obvious experiments, but was unable to make
the 3c996B-T generate correct UDP checksums for transmitted fragmented
packets.  I'm not so sure the device is even capable of it.

This fixes NFS over UDP.

MFC after:	1 day
2002-07-04 23:19:20 +00:00
Alan Cox
70c1763634 o Resurrect vm_page_lock_queues(), vm_page_unlock_queues(), and the free
queue lock (revision 1.33 of vm/vm_page.c removed them).
 o Make the free queue lock a spin lock because it's sometimes acquired
   inside of a critical section.
2002-07-04 22:07:37 +00:00
Peter Wemm
3a7ef7918c Diff reduction (microoptimization) with another WIP. Move the frame
calculation in get_ptbase() to a little later on.
2002-07-04 19:53:24 +00:00
Julian Elischer
8108a14544 A small cleanup. 2002-07-04 12:37:13 +00:00
Julian Elischer
a30ec8f8b8 Don;t call teh thread setup routines from here..
they are already called when uma calls thread_init()
2002-07-04 12:31:54 +00:00
Peter Wemm
19594b9110 Retrofit changes from i386/pmap.c rev 1.328-1.331.
XXX should really replace the pmap_{new,swapin,swapout,dispose}_{proc,thread}
functions with the much cleaner sparc64 versions.
2002-07-04 01:53:09 +00:00
Julian Elischer
8692e184dc Don't free pages we never allocated..
My eyes openned by: Matt
2002-07-04 00:35:48 +00:00
Julian Elischer
0d6735c628 Slight restatement of the code and remove some unused variables. 2002-07-04 00:04:06 +00:00
Julian Elischer
e04d8bf890 Add comments and slightly rearrange the thread stack assignment code
to try make it less obscure.
2002-07-03 20:47:50 +00:00
Julian Elischer
b2adb4b2c3 Remove vestiges of old code...
These functions are always called on new memory so they can
not already be set up, so don't bother testing for that.
(This was left over from before we used UMA (which is cool))
2002-07-03 20:06:38 +00:00
Alan Cox
22a97b04de o Make the reservation of KVA space for kernel map entries a function
of the KVA space's size in addition to the amount of physical memory
   and reduce it by a factor of two.

Under the old formula, our reservation amounted to one kernel map entry
per virtual page in the KVA space on a 4GB i386.
2002-07-03 19:16:37 +00:00
Maxim Konovalov
0e37791701 Remove trailing whitespaces.
Approved by:	luigi
2002-07-03 11:04:17 +00:00
Maxim Konovalov
b4eabccf51 o Strict interface names comparison. The old code assumed "fxp1" == "fxp11".
o Use an appropriate constant for interface name buffer.

Reviewed by:	luigi
Approved by:	luigi
MFC after:	1 month
2002-07-03 11:00:55 +00:00
Maxime Henrion
d7f9ecc86b Move vfs_rootmountalloc() in vfs_mount.c and remove lite2_vfs_mountroot()
which was #if 0'd and is not likely to be used now.
2002-07-03 09:27:24 +00:00
Julian Elischer
aa0fa33464 Try clean up some of the mess that resulted from layers and layers
of p4 merges from -current as things started getting different.

Corroborated by: Similar patches just mailed by BDE.
2002-07-03 09:15:20 +00:00
Maxime Henrion
563af2ec15 Remove an unused argument in vfs_mountroot(). 2002-07-03 08:52:37 +00:00
Jonathan Mini
66289ab43b Add missing kernal tunables to loader.conf.
PR:		i386/39085
Submitted by:	David Yeske <dyeske@yahoo.com>
2002-07-03 06:42:43 +00:00
Julian Elischer
ee9919b024 White space commit.
I'm working on this file but I wanted to make the whitespece commit
separatly.
2002-07-03 06:15:26 +00:00
Andrew Gallatin
0ac3b6364f Hold the sched lock across call to forward_signal() in tdsignal() to
keep SMP systems from panic'ing when ^C'ing an app

suggested by julian
2002-07-03 02:55:48 +00:00
Dag-Erling Smørgrav
b61860ad2d Add mtx_ prefixes to the fields used for mutex profiling, and fix a bug
where the profiling code would report the release point instead of the
acquisition point.

Requested by:	bde
2002-07-03 01:50:27 +00:00
Jeff Roberson
e221e841b0 Actually use the fini callback.
Pointy hat to:	me :-(
Noticed By:	Julian
2002-07-03 00:30:51 +00:00
Maxime Henrion
534ab2e108 I didn't pay enough attention when copy/pasting disclaimers.
The disclaimer in vfs_conf.c was slightly different.  Fix this.
2002-07-02 18:33:32 +00:00
Maxime Henrion
2b4edb69f1 Move every code related to mount(2) in a new file, vfs_mount.c.
The file vfs_conf.c which was dealing with root mounting has
been repo-copied into vfs_mount.c to preserve history.
This makes nmount related development easier, and help reducing
the size of vfs_syscalls.c, which is still an enormous file.

Reviewed by:	rwatson
Repo-copy by:	peter
2002-07-02 17:09:22 +00:00
Julian Elischer
7e8f051f42 check in the version if this that compiles, not the one that doesn't 2002-07-02 16:57:53 +00:00
Julian Elischer
443fd6da2a Make some more debugging code go away when debugging is not turned on. 2002-07-02 16:37:56 +00:00
Jonathan Mini
13990766ef Check retifma for NULL before using it.
PR:		kern/9391
Submitted by:	Assar Westerlund <assar@sics.se>
MFC after:	3 days
2002-07-02 08:23:00 +00:00
Julian Elischer
8b768fc82b When going back to SLEEP state, make sure our
State is correctly marked so.
2002-07-02 05:40:51 +00:00
Julian Elischer
d5cb7e14f6 Fix failure to correctly transition back to sleep mode. 2002-07-02 05:33:46 +00:00
Takanori Watanabe
4ec593593a Make interrupt driven EC transaction optional. 2002-07-02 03:38:07 +00:00
Peter Wemm
c781aea8ba #include <sys/ktrace.h> would be useful too. (for ktrace_mtx) 2002-07-01 23:18:08 +00:00
Ian Dowse
f2f2285a6a The jail syscall calls chroot, which is not mpsafe, so put back a
mtx_lock(&Giant) around that call.

Reviewed by:	arr
2002-07-01 20:46:01 +00:00
Peter Wemm
1e9b3d9142 Add #include "opt_ktrace.h" 2002-07-01 19:49:04 +00:00
Ian Dowse
6bd521df93 Use indirect function pointer hooks instead of #ifdef SOFTUPDATES
direct calls for the two places where the kernel calls into soft
updates code. Set up the hooks in softdep_initialize() and NULL
them out in softdep_uninitialize(). This change allows soft updates
to function correctly when ufs is loaded as a module.

Reviewed by:	mckusick
2002-07-01 17:59:40 +00:00
Robert Drehmel
47e151dd7a - Use (OFF_TO_IDX(off) - pi) instead of (OFF_TO_IDX(off - IDX_TO_OFF(pi))).
- Reformat a comment.
2002-07-01 14:14:07 +00:00
Brian Somers
27cc91fbf8 Remove trailing whitespace 2002-07-01 11:19:40 +00:00
Ian Dowse
5346934fe7 Add the ffs bits necessary to support unloading of the ufs kernel
module. This adds an ffs_uninit() function that calls ufs_uninit()
and also calls a new softdep_uninitialize() function. Add a stub
for softdep_uninitialize() to cover the non-SOFTUPDATES case.

Reviewed by:	mckusick
2002-07-01 11:00:47 +00:00
Andrew R. Reiter
c0854cd341 - In thread_userret(), remove the Giant locking and unlocking around the
call to thread_alloc().

Approved by:	julian
Reviewed by:	jake, jeff
2002-07-01 03:15:16 +00:00
Alan Cox
c2eda4b565 o Remove some long dead code: from revision 1.41 of vm/vm_pager.c
3+ years ago.
 o Remove some unused prototypes.
2002-07-01 02:38:05 +00:00
Mitsuru IWASAKI
fc57439987 Fix a build problem for the ACPI CA 20020404 import.
Add definition of COMPILER_DEPENDENT_INT64 and also
fix definition of COMPILER_DEPENDENT_UINT64.

Pointed-out by:	Michael Nottebrock <michaelnottebrock@gmx.net>
2002-06-30 23:22:22 +00:00
Warner Losh
f83c4a42ea IF_HANDOFF is no longer in -stable 2002-06-30 22:39:25 +00:00
Luigi Rizzo
41aa0ba271 Fix if_timer logic so that there is always a timeout pending if there
are packets queued for transmission.

This driver is strange -- it never sets IFF_OACTIVE, so all
transmissions always cause a call to fxp_start. However, if the
link gets stuck, there was nothing to reset it, so there was still
a possibility of lockups.

MFC after: 3 days
2002-06-30 22:28:00 +00:00
Luigi Rizzo
2e4fb41fa5 Fix if_timer logic to make sure that there is always a timeout
pending if there are packets queued for transmission.

Several drivers still have the same problem.

MFC after: 3 days
2002-06-30 22:16:22 +00:00
Luigi Rizzo
bcb9ef4fe6 Fix if_timer logic to make sure that there is always a timeout
pending if there are packets queued for transmission.

MFC after: 3 days
2002-06-30 22:05:46 +00:00
Luigi Rizzo
4dfae5a5e8 Make sure that if_timer does not get reset if there are packets
still queued for transmission. This should solve the problem of
the device stalling on transmissions if some link event prevents
transmission.

There are other drivers which have the same problem and need to be
fixed in the same way.

MFC after: 3 days
2002-06-30 21:59:08 +00:00
Jesper Skriver
eb538bfd64 Extend the effect of the sysctl net.inet.tcp.icmp_may_rst
so that, if we recieve a ICMP "time to live exceeded in transit",
(type 11, code 0) for a TCP connection on SYN-SENT state, close
the connection.

MFC after:	2 weeks
2002-06-30 20:07:21 +00:00
Mitsuru IWASAKI
74fc979a09 Resolve conflicts arising from the ACPI CA 20020404 import. 2002-06-30 17:53:12 +00:00
Mitsuru IWASAKI
3f12fee6bc Vendor import of the Intel ACPI CA 200200404 drop. 2002-06-30 17:50:46 +00:00
Mitsuru IWASAKI
733e46c474 This commit was generated by cvs2svn to compensate for changes in r99146,
which included commits to RCS files with non-trunk default branches.
2002-06-30 17:50:46 +00:00
Yoshihiro Takahashi
37bd31c6c7 MFi386: revision 1.521 2002-06-30 09:34:10 +00:00
David E. O'Brien
ea9ea04c0d This is the start of the FreeBSD/x86_64 kernel. 2002-06-30 08:57:17 +00:00
David E. O'Brien
d2be885e99 This is the start of the FreeBSD/x86_64 kernel. 2002-06-30 08:05:21 +00:00
Luigi Rizzo
9961e27d73 Remove one useless variable. 2002-06-30 08:02:38 +00:00
Julian Elischer
7c7a6f22ca If the process is a zombie, then you must not try dereference the thread
because there isn't one. Of course this code only possibly works
for single threaded processes anyhow..
2002-06-30 07:50:22 +00:00
David E. O'Brien
176d0ec15d This is the start of the FreeBSD/x86_64 kernel. 2002-06-30 07:42:36 +00:00
David E. O'Brien
eca69d62e7 Gcc 3.1 varargs support. 2002-06-30 07:22:30 +00:00
Mike Barcroft
a19d429398 Since printf(3) now supports the `j' conversion specifier, use that
when printing intmax_t and uintmax_t.

Forgotten by:	mike
Noticed by:	bde
2002-06-30 05:48:03 +00:00
Alfred Perlstein
37a6b453c4 Partial backout of 1.318, remove error handling added because it may be
incorrect.

Requested by: bde
2002-06-30 05:23:58 +00:00
Robert Watson
006f19e4f2 Remove ALT_BREAK_TO_DEBUGGER. This was inconsistent (both in form
and function) with existing configuration choices.  Arguably if
ALT_BREAK_TO_DEBUGGER was present, so should have been
BREAK_TO_DEBUGGER.  Regardless, it broke the option sort order in
these kernel configuration files.

Requested by:	bde
2002-06-30 04:12:21 +00:00
Ian Dowse
efdc5c8a0f Use hashdestroy() now that it exists. 2002-06-30 03:01:44 +00:00
Ian Dowse
3423b21c09 Remove the bogus SYSINIT from ufs_dirhash.c and instead add a call
to ufsdirhash_init() from ufs_init(). Add uninit() functions
corresponding the ufs, dirhash, quota and ihash init() functions.
2002-06-30 02:49:39 +00:00
Ian Dowse
c21c16a492 Add a makefile for building UFS as a module. Since it is of marginal
use it is not built by default, and there are currently bugs that
prevent UFS from being unloaded. Nevertheless it can be useful when
developing UFS code on network-booted machines.
2002-06-30 02:23:12 +00:00
Ian Dowse
37777f4d1f Add a hashdestroy() function to undo the actions of hashinit(). 2002-06-30 02:07:26 +00:00
Julian Elischer
8540497c50 Fix reverse ordering of locks. add a comment about locks on some platforms.
Submitted by:	jhb@freebsd.org
2002-06-29 23:58:50 +00:00
Ian Dowse
300b96aca2 Change the type of `tscan' in vm_object_page_clean() to vm_pindex_t,
as it stores an absolute page index that may not fit in a vm_offset_t.
2002-06-29 20:04:38 +00:00
Bruce Evans
110a549a4c Backed out previous commit. It had nothing to do with KSE and just undid
some of my style fixes.
2002-06-29 19:53:55 +00:00
Julian Elischer
3b3afe10a7 Oops, that was a heck of a lot more debugging left onthan I intended..
turn it off!

I don't know if people think that these debugging macros are worth keeping
or not but I'll keep them for a short while, while the danger of
queue stuffups in the (rather complicated) run queue code exists.
2002-06-29 19:16:10 +00:00
Bruce Evans
83b9e252d2 Updated a comment. Namspace pollution in <sys/select.h> is now moot since
it was moved to <sys/selinfo.h>.

Fixed indentation of $FreeBSD$.
2002-06-29 19:14:52 +00:00
Julian Elischer
e1047617d6 Add KSE stubs to MD parts of ia64 code.
Dfr will fill these out when we decide to enable KSEs on ia64
(probably not immediatly)
2002-06-29 18:26:18 +00:00
Julian Elischer
378df78528 Add a copy of the sparc64 machine/kse.h to satisfy depencies..
dfr will fill in the correct contents at a later time.
2002-06-29 18:07:50 +00:00
Alfred Perlstein
97bb78ace2 Fix several style bugs:
close up the continued line after removing the cast made the line.
space before parentheses in indirect function call.

Add an addtional error handler case for the results of callback.

Submitted by: bde
2002-06-29 17:58:44 +00:00
Alfred Perlstein
c5e3ef7e1f Unbreak computation of 'smask' that I broke when removing caddr_t.
Submitted by: bde
2002-06-29 17:56:34 +00:00
Julian Elischer
e602ba25fd Part 1 of KSE-III
The ability to schedule multiple threads per process
(one one cpu) by making ALL system calls optionally asynchronous.
to come: ia64 and power-pc patches, patches for gdb, test program (in tools)

Reviewed by:	Almost everyone who counts
	(at various times, peter, jhb, matt, alfred, mini, bernd,
	and a cast of thousands)

	NOTE: this is still Beta code, and contains lots of debugging stuff.
	expect slight instability in signals..
2002-06-29 17:26:22 +00:00
Alfred Perlstein
7c41487d14 catch up with mextfree callback change when TI_PRIVATE_JUMBOS is defined.
Pointed out by: kdm
2002-06-29 11:26:05 +00:00
Benno Rice
71cf3a3574 Add an inline to call eieio.
("Enforce In-order Execution of I/O".  I am not making this up.)
2002-06-29 10:00:07 +00:00
Benno Rice
bfcf2ca287 We don't need to clear RI in the MSR when entering a critical section. 2002-06-29 09:55:57 +00:00
Benno Rice
825467cae1 Add in_cksum.c 2002-06-29 09:50:20 +00:00
Benno Rice
14d617bf1f in_cksum et al.
Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:49:26 +00:00
Benno Rice
a088981493 Implement vtophys() 2002-06-29 09:47:06 +00:00
Benno Rice
8bbfa33a79 Add pmap_mapdev and pmap_unmapdev. 2002-06-29 09:45:59 +00:00
Benno Rice
0d29067503 - Initialise battable to cover I/O spaces.
- Statically size the bpvo entries to avoid conflicts between bpvo allocation
  and the vm allocator.
- Shift pmap_init2 code into pmap_init.
- Add UMA_ZONE_VM flag to uma_zcreate.

Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:43:59 +00:00
Benno Rice
8b8aa9c1e6 To quote Peter:
The case in cpu_switch() where there isn't a higher priority thread
(choosethread() == curthread) uses r4 as the PCB context pointer. However, the
use of r4 after the label L2 is incorrect, since it was probably trashed by
the call to choosethread, and in any case was set up to curthread at the start
of the routine.

This condition will occur when an interrupt thread schedules a netisr, which
is a lower priority thread.

Another (probably unnecessary) difference is that I was paranoid about
register trashing, so I decided to save r2 and r13 as well.

Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:39:44 +00:00
Benno Rice
a5f44e04e2 mempcy/bcopy handles overlapping copies so make ovbcopy call it. 2002-06-29 09:34:54 +00:00
Benno Rice
cd0386a052 Add BOOTP_NFSROOT support code. 2002-06-29 09:33:18 +00:00
Benno Rice
637dd1a0b3 - Use tmpstk exclusively in the init path.
- Remove redundant code.

Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:31:27 +00:00
Benno Rice
6c2a062580 Many fixes to low-level trap and interrupt handling:
- Tidy up clock code.  Don't repeatedly call hardclock().
- Remove intrnames, decrnest and intrcnt from locore.s
- Coalesce all trap handling into a single stub that then calls a dispatch
  function.

Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:28:21 +00:00
Benno Rice
3f57c11ec5 Convert this from mostly inline assembler to mostly C.
Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:16:30 +00:00
Julian Elischer
f04af82768 Don't use the static thread.. it is going away. 2002-06-29 07:47:20 +00:00
Julian Elischer
1f1bebd1b4 remove cruft 2002-06-29 07:16:24 +00:00
Julian Elischer
44990b8cb8 Add files that are new for KSE. 2002-06-29 07:04:59 +00:00
Jake Burkholder
eecc66a7d2 Fix a deletion during traversal tailq bug. 2002-06-29 06:37:24 +00:00
David E. O'Brien
87e1503e2c Rename the db command lockedvnodes to lockedvnods so that it fits on the
help screen and one doens't think we have a lockedvnodesmap command.
2002-06-29 04:45:09 +00:00
David E. O'Brien
4f1daba8df Do NOT enable ATA_STATIC_ID -- cmd646 controller will be !ata2!,
and you will not mount an ATA /:
	mountroot> ufs:/ad0a
	Mounting root from ufs:/ad0a
	setrootbyname failed
	ffs_mountroot: can't find rootvp
2002-06-29 04:42:03 +00:00
Peter Wemm
160554fbf4 Remove a couple of __P() stragglers. 2002-06-29 02:32:34 +00:00
Alfred Perlstein
016091145e more caddr_t removal. 2002-06-29 02:00:02 +00:00
Mike Silbersack
f32932bc1b Add another Intel chipset (i82562).
PR:		39974
Submitted by:	Morten Aaboe Jensen <morten@codemonkey.dk>
MFC after:	1 day
2002-06-29 01:56:14 +00:00
Alfred Perlstein
7f05b0353a More caddr_t removal, make fo_ioctl take a void * instead of a caddr_t. 2002-06-29 01:50:25 +00:00
Alfred Perlstein
69a3693f3e catch up with mextadd callback taking a void argument instead of a caddr_t. 2002-06-29 01:49:22 +00:00
Alfred Perlstein
914596ab53 catch up with ext_free prototype change. 2002-06-29 01:36:59 +00:00
Alfred Perlstein
802082390b More caddr_t removal.
Change struct knote's kn_hook from caddr_t to void *.
2002-06-29 00:29:12 +00:00
Alfred Perlstein
a551e20e27 nuke more instances of caddr_t 2002-06-29 00:02:01 +00:00
Alfred Perlstein
337f75e11c m_extadd takes a void (*freef)(void *, void *) now, not a
void (*freef)(caddr_t, void *).
2002-06-29 00:01:46 +00:00
Alfred Perlstein
64f0b9d749 remove or replace caddr_t with void.
make the mbuf external free function take a void * rather than caddr_t.
2002-06-28 23:48:23 +00:00
Alfred Perlstein
210a5a7169 nuke caddr_t. 2002-06-28 23:17:36 +00:00
Alfred Perlstein
02a32cd207 change struct socket -> so_pcb from caddr_t to void *. 2002-06-28 23:17:08 +00:00
Alfred Perlstein
a788442584 Remove unneeded casts to caddr_t. 2002-06-28 23:02:38 +00:00
Alfred Perlstein
b555662c63 change f_data field in struct file from caddr_t to void *. 2002-06-28 23:00:32 +00:00
Alfred Perlstein
52545a237b document that the pipe fo_stat routine doesn't need locks because it's
a read operation.

Requested by: rwatson
2002-06-28 22:35:12 +00:00
John Baldwin
56e9ce41a5 In namei(), we use a NULL thread for uio_td when doing a VOP_READLINK().
nfs_readlink() calls nfs_bioread() which passes in uio_td as the thread
argument to nfs_getcacheblk().  In nfs_getcacheblk() we dereference the
thread pointer to get a process pointer to pass to nfs_sigintr().  This
obviously results in a panic. :)

Rather than change nfs_getcacheblk() to check if the thread pointer is
NULL when calling nfs_sigintr() like other callers do, change
nfs_sigintr() to take a thread as the last argument instead of a
process so none of the callers have to care if the thread is NULL or not.
2002-06-28 21:53:08 +00:00
Poul-Henning Kamp
77f6a083fc Add two new submodes to the AES encryption method.
This method is now suitable for encrypting swap spaces.

Sponsored by:	DARPA & NAI Labs.
2002-06-28 21:25:15 +00:00
Jeff Roberson
90769c9ed0 Improve the VOP locking asserts
- Add vfs_badlock_print to control whether or not we print lock violations
 - Add vfs_badlock_panic to control whether we panic on lock violations

Both default to on to mimic the original behavior if DEBUG_VFS_LOCKS is on.
2002-06-28 20:58:14 +00:00
Ian Dowse
84b2995b2f In vn_mkdir(), use vrele() instead of vput() on the parent directory
vnode in the case that the target exists and is the same vnode as
the parent (i.e. "mkdir ."). The namei() call does not leave the
vnode locked in this case even though you might expect it to.

This bug was mostly harmless in practice because unlocking an already
unlocked vnode currently does not trigger any panics or warnings.

Reviewed by:	jeff
2002-06-28 20:06:47 +00:00
Jonathan Lemon
0080a004d7 One possible code path for syncache_respond() is:
syncache_respond(A), ip_output(), ip_input(), tcp_input(), syncache_badack(B)

Which winds up deleting a different entry from the syncache.  Handle
this by not utilizing the next entry in the timer chain until after
syncache_respond() completes.  The case of A == B should not be possible.

Problem found by: Don Bowman <don@sandvine.com>
2002-06-28 19:12:38 +00:00
Jeff Roberson
5c71bc6cf2 Clean up vn_rdwr locking.
- Do shared locks on read.
 - Only do vn_{start,finished}_write when writing.
2002-06-28 17:51:11 +00:00
Brian Feldman
aac12bcfbc Fix a case where a vnode got explicitly unlocked after the pointer to it
got set to NULL.

Revision 1.355: in the box
2002-06-28 16:17:47 +00:00
Doug Rabson
24f8fd9fd1 Fix warning.
Reviewed by: luigi
2002-06-28 08:36:26 +00:00
Julian Elischer
3c9a1810ff bring Makefile up to date with new ipfw
Submitted by:	luigi
2002-06-28 08:10:07 +00:00
Scott Long
63393eea99 Fix a botched flag clear operation. Rumor has it that this also fixes
the funky-volume-settings-on-startup problem.

Reviewed by:	the channel that shall not be named
MFC after:	7 days
2002-06-28 06:11:26 +00:00
Luigi Rizzo
d26d355f0e Remove a printf and add a comment on an assumption that could be
occasionally violated by device drivers.
2002-06-27 23:23:04 +00:00
Luigi Rizzo
9758b77ff1 The new ipfw code.
This code makes use of variable-size kernel representation of rules
(exactly the same concept of BPF instructions, as used in the BSDI's
firewall), which makes firewall operation a lot faster, and the
code more readable and easier to extend and debug.

The interface with the rest of the system is unchanged, as witnessed
by this commit. The only extra kernel files that I am touching
are if_fw.h and ip_dummynet.c, which is quite tied to ipfw. In
userland I only had to touch those programs which manipulate the
internal representation of firewall rules).

The code is almost entirely new (and I believe I have written the
vast majority of those sections which were taken from the former
ip_fw.c), so rather than modifying the old ip_fw.c I decided to
create a new file, sys/netinet/ip_fw2.c .  Same for the user
interface, which is in sbin/ipfw/ipfw2.c (it still compiles to
/sbin/ipfw).  The old files are still there, and will be removed
in due time.

I have not renamed the header file because it would have required
touching a one-line change to a number of kernel files.

In terms of user interface, the new "ipfw" is supposed to accepts
the old syntax for ipfw rules (and produce the same output with
"ipfw show". Only a couple of the old options (out of some 30 of
them) has not been implemented, but they will be soon.

On the other hand, the new code has some very powerful extensions.
First, you can put "or" connectives between match fields (and soon
also between options), and write things like

ipfw add allow ip from { 1.2.3.4/27 or 5.6.7.8/30 } 10-23,25,1024-3000 to any

This should make rulesets slightly more compact (and lines longer!),
by condensing 2 or more of the old rules into single ones.

Also, as an example of how easy the rules can be extended, I have
implemented an 'address set' match pattern, where you can specify
an IP address in a format like this:

        10.20.30.0/26{18,44,33,22,9}

which will match the set of hosts listed in braces belonging to the
subnet 10.20.30.0/26 . The match is done using a bitmap, so it is
essentially a constant time operation requiring a handful of CPU
instructions (and a very small amount of memmory -- for a full /24
subnet, the instruction only consumes 40 bytes).

Again, in this commit I have focused on functionality and tried
to minimize changes to the other parts of the system. Some performance
improvement can be achieved with minor changes to the interface of
ip_fw_chk_t. This will be done later when this code is settled.

The code is meant to compile unmodified on RELENG_4 (once the
PACKET_TAG_* changes have been merged), for this reason
you will see #ifdef __FreeBSD_version in a couple of places.
This should minimize errors when (hopefully soon) it will be time
to do the MFC.
2002-06-27 23:02:18 +00:00
Scott Long
f4df40b218 Delay the AC97 calibration until after the system clock has been
calibrated.  This fixes the problem where playback and recording do
not run at the correct speed.  It probably also eliminates the
need for the hacks/workarounds/sysctl's that were previously
devised to deal with this, but I will leave that for a different
time.

Reviewed by:	orion
2002-06-27 22:36:01 +00:00
Warner Losh
d65d5bbff5 Lots of people have had to hack around the fixed address for cardbus
bridges in modern hardware (that hardware w/ lots of RAM).  Raise the
address from 0x44000000 to 0x88000000 to match what we do with
NEWCARD.  However, this really should be done in the pci layer.
2002-06-27 19:56:22 +00:00
Robert Watson
600c1a5a8e Fix a bug that prevented the deletion of non-default ACLs from being
passed down the VFS stack.  While I'm here, replace a '0' with a 'NULL'
to make the code more readable.

Sponsored by:	DARPA, NAI Labs
Obtained from:	TrustedBSD Project
2002-06-27 19:31:15 +00:00
Robert Watson
cbeb840245 A bit of whitespace magic. 2002-06-27 19:30:11 +00:00
Warner Losh
eb486650ec Leave it to a non-native speaker of English to catch another typo: "do do" ->
"to do"

submitted by: marius@alchemy.franken.de
2002-06-27 18:16:16 +00:00
Warner Losh
9accf6a74a Spell less like a 'merkin and more like a speaker of English 2002-06-27 17:59:24 +00:00
Maxime Henrion
0dc658c141 GENERIC now builds with -Werror, so remove NO_WERROR.
Approved by:	jake
2002-06-27 14:43:27 +00:00
Maxime Henrion
7627c6cbcc Warning fixes for 64 bits platforms. With this last fix,
I can build a GENERIC sparc64 kernel with -Werror.

Reviewed by:	luigi
2002-06-27 11:02:06 +00:00
Andrew R. Reiter
c6d84b4d4b Fix for the problem stated below by Tor Egge:
(from: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=832566+0+ \
       current/freebsd-current)

  "Too many pages were prefaulted in pmap_object_init_pt, thus
   the wrong physical page was entered in the pmap for the virtual
   address where the .dynamic section was supposed to be."

Submitted by:	tegge
Approved by:	tegge's patches never fail
2002-06-27 06:34:03 +00:00
Jeff Roberson
09122f6371 Set the UMA_ZONE_VM flag on the pvzone to avoid kmem_map recursion. 2002-06-27 04:08:45 +00:00
Luigi Rizzo
713a6ea063 Just a comment on some additional consistency checks that could
be added here.
2002-06-26 21:00:53 +00:00
Ian Dowse
23f09d50bb Avoid using the 64-bit vm_pindex_t in a few places where 64-bit
types are not required, as the overhead is unnecessary:

 o In the i386 pmap_protect(), `sindex' and `eindex' represent page
   indices within the 32-bit virtual address space.
 o In swp_pager_meta_build() and swp_pager_meta_ctl(), use a temporary
   variable to store the low few bits of a vm_pindex_t that gets used
   as an array index.
 o vm_uiomove() uses `osize' and `idx' for page offsets within a
   map entry.
 o In vm_object_split(), `idx' is a page offset within a map entry.
2002-06-26 20:32:51 +00:00
Ian Dowse
5125fe4f45 Use an explicit cast to avoid relying on sign extension to do the
right thing in code such as `vm_pindex_t x = ~SWAP_META_MASK'.

Reviewed by:	dillon
2002-06-26 19:18:14 +00:00
Ian Dowse
8f42fb8fc9 Remove the kernel file-size limit for UFS2, so that only the limit
imposed by the filesystem structure itself remains. With 16k blocks,
the maximum file size is now just over 128TB.

For now, the UFS1 file size limit is left unchanged so as to remain
consistent with RELENG_4, but it too could be removed in the future.

Reviewed by:	mckusick
2002-06-26 18:34:51 +00:00
Andrew R. Reiter
57d14ec550 - Remove the Giant acquisition from linux_socket_ioctl() as it was really
there to protect fdrop() (which in turn can call vrele()), however,
  fdrop_locked() grabs Giant for us, so we do not have to.

Reviewed by:	jhb
Inspired by:	alc
2002-06-26 15:53:11 +00:00
Kenneth D. Merry
98cb733c67 At long last, commit the zero copy sockets code.
MAKEDEV:	Add MAKEDEV glue for the ti(4) device nodes.

ti.4:		Update the ti(4) man page to include information on the
		TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options,
		and also include information about the new character
		device interface and the associated ioctls.

man9/Makefile:	Add jumbo.9 and zero_copy.9 man pages and associated
		links.

jumbo.9:	New man page describing the jumbo buffer allocator
		interface and operation.

zero_copy.9:	New man page describing the general characteristics of
		the zero copy send and receive code, and what an
		application author should do to take advantage of the
		zero copy functionality.

NOTES:		Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS,
		TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT.

conf/files:	Add uipc_jumbo.c and uipc_cow.c.

conf/options:	Add the 5 options mentioned above.

kern_subr.c:	Receive side zero copy implementation.  This takes
		"disposable" pages attached to an mbuf, gives them to
		a user process, and then recycles the user's page.
		This is only active when ZERO_COPY_SOCKETS is turned on
		and the kern.ipc.zero_copy.receive sysctl variable is
		set to 1.

uipc_cow.c:	Send side zero copy functions.  Takes a page written
		by the user and maps it copy on write and assigns it
		kernel virtual address space.  Removes copy on write
		mapping once the buffer has been freed by the network
		stack.

uipc_jumbo.c:	Jumbo disposable page allocator code.  This allocates
		(optionally) disposable pages for network drivers that
		want to give the user the option of doing zero copy
		receive.

uipc_socket.c:	Add kern.ipc.zero_copy.{send,receive} sysctls that are
		enabled if ZERO_COPY_SOCKETS is turned on.

		Add zero copy send support to sosend() -- pages get
		mapped into the kernel instead of getting copied if
		they meet size and alignment restrictions.

uipc_syscalls.c:Un-staticize some of the sf* functions so that they
		can be used elsewhere.  (uipc_cow.c)

if_media.c:	In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid
		calling malloc() with M_WAITOK.  Return an error if
		the M_NOWAIT malloc fails.

		The ti(4) driver and the wi(4) driver, at least, call
		this with a mutex held.  This causes witness warnings
		for 'ifconfig -a' with a wi(4) or ti(4) board in the
		system.  (I've only verified for ti(4)).

ip_output.c:	Fragment large datagrams so that each segment contains
		a multiple of PAGE_SIZE amount of data plus headers.
		This allows the receiver to potentially do page
		flipping on receives.

if_ti.c:	Add zero copy receive support to the ti(4) driver.  If
		TI_PRIVATE_JUMBOS is not defined, it now uses the
		jumbo(9) buffer allocator for jumbo receive buffers.

		Add a new character device interface for the ti(4)
		driver for the new debugging interface.  This allows
		(a patched version of) gdb to talk to the Tigon board
		and debug the firmware.  There are also a few additional
		debugging ioctls available through this interface.

		Add header splitting support to the ti(4) driver.

		Tweak some of the default interrupt coalescing
		parameters to more useful defaults.

		Add hooks for supporting transmit flow control, but
		leave it turned off with a comment describing why it
		is turned off.

if_tireg.h:	Change the firmware rev to 12.4.11, since we're really
		at 12.4.11 plus fixes from 12.4.13.

		Add defines needed for debugging.

		Remove the ti_stats structure, it is now defined in
		sys/tiio.h.

ti_fw.h:	12.4.11 firmware.

ti_fw2.h:	12.4.11 firmware, plus selected fixes from 12.4.13,
		and my header splitting patches.  Revision 12.4.13
		doesn't handle 10/100 negotiation properly.  (This
		firmware is the same as what was in the tree previously,
		with the addition of header splitting support.)

sys/jumbo.h:	Jumbo buffer allocator interface.

sys/mbuf.h:	Add a new external mbuf type, EXT_DISPOSABLE, to
		indicate that the payload buffer can be thrown away /
		flipped to a userland process.

socketvar.h:	Add prototype for socow_setup.

tiio.h:		ioctl interface to the character portion of the ti(4)
		driver, plus associated structure/type definitions.

uio.h:		Change prototype for uiomoveco() so that we'll know
		whether the source page is disposable.

ufs_readwrite.c:Update for new prototype of uiomoveco().

vm_fault.c:	In vm_fault(), check to see whether we need to do a page
		based copy on write fault.

vm_object.c:	Add a new function, vm_object_allocate_wait().  This
		does the same thing that vm_object allocate does, except
		that it gives the caller the opportunity to specify whether
		it should wait on the uma_zalloc() of the object structre.

		This allows vm objects to be allocated while holding a
		mutex.  (Without generating WITNESS warnings.)

		vm_object_allocate() is implemented as a call to
		vm_object_allocate_wait() with the malloc flag set to
		M_WAITOK.

vm_object.h:	Add prototype for vm_object_allocate_wait().

vm_page.c:	Add page-based copy on write setup, clear and fault
		routines.

vm_page.h:	Add page based COW function prototypes and variable in
		the vm_page structure.

Many thanks to Drew Gallatin, who wrote the zero copy send and receive
code, and to all the other folks who have tested and reviewed this code
over the years.
2002-06-26 03:37:47 +00:00
Matthew Dillon
a69ac1740f Enforce RLIMIT_VMEM on growable mappings (aka the primary stack or any
MAP_STACK mapping).

Suggested by:	alc
2002-06-26 03:13:46 +00:00
Andrew R. Reiter
e024f583de - Remove Giant acquisition from modevent(), modfnext(), modstat() and
modfind().  Giant is no longer needed by these functions for safe
  execution.

Reviewed by:	jhb
2002-06-26 00:31:44 +00:00
Matthew Dillon
070f64fe6f Part I of RLIMIT_VMEM implementation. Implement core functionality for
a new resource limit that covers a process's entire VM space, including
mmap()'d space.

(Part II will be additional code to check RLIMIT_VMEM during exec() but it
needs more fleshing out).

PR:		kern/18209
Submitted by:	Andrey Alekseyev <uitm@zenon.net>, Dmitry Kim <jason@nichego.net>
MFC after:	7 days
2002-06-26 00:29:28 +00:00
Andrew R. Reiter
4e77f68011 - Alleviate jail() from having the burden of acquiring Giant by simply
removing.  We can do this since we no longer need Giant to safely
  execute jail().

Reviewed by:	rwatson, jhb
2002-06-26 00:29:01 +00:00
Ian Dowse
6395da5437 Complete the initial set of VM changes required to support full
64-bit file sizes. This step simply addresses the remaining overflows,
and does attempt to optimise performance. The details are:

 o Use a 64-bit type for the vm_object `size' and the size argument
   to vm_object_allocate().
 o Use the correct type for index variables in dev_pager_getpages(),
   vm_object_page_clean() and vm_object_page_remove().
 o Avoid an overflow in the i386 pmap_object_init_pt().
2002-06-25 22:14:06 +00:00
Jeff Roberson
e78f35b33f Turn VM_ALLOC_ZERO into a flag.
Submitted by:	tegge
Reviewed by:	dillon
2002-06-25 22:01:12 +00:00
Jeff Roberson
5c0e403ba2 Reduce the amount of code that runs with the zone lock held in slab_zalloc().
This allows us to run the zone initialization functions without any locks held.
2002-06-25 21:04:50 +00:00
Alan Cox
366838ddfe o Eliminate vmspace::vm_minsaddr. It's initialized but never used.
o Replace stale comments in vmspace by "const until freed" annotations
   on some fields.
2002-06-25 18:14:38 +00:00
Thomas Moestl
358ad31d9a Don't assume that pointers are 4 bytes or sizeof(int) in size. This fixes
the indirection operator ('*') and address examination ('x/a') on
big-endian platoforms for which the above is not true, as well as on
little-endian platforms if the cut-off bits are not 0.
2002-06-25 15:59:24 +00:00
Jake Burkholder
218fd301cd pmap_kremove can no longer be used to remove the magic device mappings
installed with pmap_kenter_flags, since the physical addresses may not
have an associated vm_page.  Add a function to do this.

Tested by:	Tomi Vainio <Tomi.Vainio@Sun.COM>
2002-06-25 15:13:09 +00:00
KATO Takenori
79804ff975 MFi386: sys/i386/i386/machdep.c rev. 1.520. 2002-06-25 09:10:38 +00:00
Kirk McKusick
a7d50c22a6 Force the quota update to be done when an inode is released in
ufs_inactive. This avoid a panic when checking a NULL credential
in suser_cred().
2002-06-25 01:02:28 +00:00