657f118b7f
Update the status of a couple of items here... specifically, more aggressive
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object collapse (DONE), machine-dependent hook for virtual memory allocation
(DONE - PMAP_PREFER()), and better coherency between page and buffer
caches (A LITTLE BETTER - we sync up the vnode pager in the sync(2)
system call now).
1997-06-26 01:02:07 +00:00
781dfea84f
back out previous. look in unistd.h.
1997-06-23 01:15:03 +00:00
796badce6b
PR/3772: Matthias Scheler: Missing swapctl prototype.
1997-06-22 19:35:55 +00:00
98ce8ab879
Remove __FORK_BRAINDAMAGEd code; it's no longer needed.
1997-06-19 20:54:15 +00:00
3bd11220b6
Don't print a message if the user attempts SWAP_OFF. Return an error
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instead.
1997-06-17 03:37:07 +00:00
c61704d37c
Remove the code that sets dumpdev, for two reasons:
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- It was incorrect. A dev_t should _never_ be compared against
NULL, as 0 is a valid value (major 0, minor 0).
- The operator mave have _intentionally_ set dumpdev to "none"
(i.e. NODEV), and setting it the first time a VBLK swap device
is added would break the semantics.
setroot() deals with all dump device selection. Dumps and swap are now
in no way related.
1997-06-16 20:21:55 +00:00
c78d0720ff
- set dumpdev if not already set
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- don't use nocoalease (from thorpej).
- fix priority list management (from pk).
- update comment for swapoff.
- free swap device extent name safely (from thorpej).
1997-06-16 13:35:17 +00:00
e5b0a8820b
As long as we actually use `swapdev_vp', initialize it.
1997-06-13 15:37:17 +00:00
21cc3ddfd5
bring mrg-vm-swap2 onto mainilne.
1997-06-12 14:51:20 +00:00
433c3cae0f
Pull thorpej-bus-dma branch into mainline.
1997-06-06 23:10:23 +00:00
09da7e273e
Eliminate vmspace.vm_pmap and all references to it unless
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__VM_PMAP_HACK is defined (for temporary compatibility).
The __VM_PMAP_HACK code should be removed after all the
ports that define it have removed all vm_pmap references.
1997-05-16 21:39:50 +00:00
e73580920d
Change to not require including <sys/dmap.h>
1997-04-17 00:12:50 +00:00
27b49a0ede
XXX Kludge for PowerPC; need to use kernel vfprintf().
1997-04-17 00:12:08 +00:00
90ece8ebcb
Declare dmmin, dmmax, swapmap, and nswapmap here.
1997-04-17 00:08:50 +00:00
448427b7ba
Document a requirement of vm_object_bypass().
1997-04-08 22:35:49 +00:00
69e0aacce3
Remove the `backing_object still referenced' panic, since there's an expected
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race with vnode_pager_sync().
1997-04-07 01:57:14 +00:00
3a474fa002
Remove a printf() that's no longer needed.
1997-03-03 20:56:12 +00:00
700dee447e
DTRT if vm_object_lookup() returns NULL. This may happen while an object is
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being created or destroyed.
1997-02-27 17:49:05 +00:00
fad978b853
a mutex on vnode_pager_sync avoids another race condition, only possible if sync were called again while we were sleeping. This should be the last of this nest of bugs. From mycroft.
1997-02-26 02:26:19 +00:00
cbb4319fb9
vm_object_shadow(): Add a DIAGNOSTIC check for shadowing a null object.
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From Charles Hannum <mycroft@netbsd.org>
1997-02-25 23:28:09 +00:00
a49641e340
vm_map_copy_entry(): Don't set "needs_copy" on a zero-fill entry.
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From Charles Hannum <mycroft@netbsd.org>
1997-02-25 23:27:08 +00:00
7327c8cf62
From Charles Hannum:
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During a collapse, abort if the object is paging; the pagedaemon can
trigger a collapse, causing deadlock. (XXX)
1997-02-24 22:19:26 +00:00
82f19ac36c
lite2
1997-02-23 09:58:53 +00:00
3b9c3fff2e
restructure vm_object_overlay() to collapse objects in more cases.
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change one diag panic() to a diag printf(). from mycroft.
1997-02-23 09:01:37 +00:00
8eba4aeacb
don't clean fading objects. from mycroft.
1997-02-23 08:56:57 +00:00
a49beaa16a
Possesive, Jason... possesive....
1997-02-22 04:36:48 +00:00
75be8504f4
More good stuff from Charles:
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Eliminate a nasty race condition in vnode_pager_sync() by making
two passes. First, find all of the objects to be cleaned and reference
them. Second, traverse this list objects, cleaning them if there are
references other than us.
1997-02-22 04:11:42 +00:00
255b9d74d8
Rewrite the object chain collapse code. Bugs fixed are too numerous
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to describe here. This should fix the problems with "hanging processes"
people have seen since the original object collapse code was committed.
From Charles Hannum <mycroft@netbsd.org>
1997-02-21 20:30:49 +00:00
235a2d71f7
Use vm_object_paging() to test if an object has pages in transit.
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From Charles Hannum <mycroft@netbsd.org>
1997-02-21 20:27:21 +00:00
dd8d0f1f00
Define a macro to test if an object has pages in transit. Clarify
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some arithmetic, and nuke an unneeded prototype.
From Charles Hannum <mycroft@netbsd.org>.
1997-02-21 20:26:03 +00:00
17b60fc6e9
In vnode_pager_sync(), we need to vm_object_deallocate() after cleaning
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pages. Noticed by Thor Simon <tls@netbsd.org>, confirmed by
Charles Hannum <mycroft@netbsd.org>
1997-02-21 20:22:39 +00:00
42ae012452
This is all from mycroft:
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Create macros (with names borrowed from Mach 3) to manipulate
object->paging_in_progress, and use them. When decreasing the
paging count, always make sure to wake up anyone waiting.
Fixes `vospgc', `vosca1', and `vosca2' hangs.
1997-02-18 13:39:31 +00:00
127c6b54e7
Sigh. I initially had this exactly backwards: the object needs to be locked, the vnode does *not*. Avoids panic: locking against myself quickly reported by Charles.
1997-02-17 13:10:28 +00:00
a507fda378
vnode_pager_sync bugs: A) must lock the object, not just the vnode. B) Don't remove the object from paging queues, because we'd have to put it back on one. The pagedaemon will eventually take care of this for us anyway. This was causing us to *lose track of pages completely* every time vnode_pager_sync() was called... sigh. Credit goes to mycroft for untangling this mess.
1997-02-17 06:22:52 +00:00
4b1213d27c
sync needs to clean VM objects backed by vnode pagers
1997-02-13 02:54:06 +00:00
491e8af174
minor KNF from jason.
1997-02-05 08:26:25 +00:00
eadd7792d9
add thread_sleep_msg() that takes a wait message, and change thread_sleep()
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into a macro for backwards compat. alter vm_object_sleep() to take advantage
of this.
1997-02-05 08:09:45 +00:00
85328f7b35
KNF.
1997-02-05 07:48:42 +00:00
593fdd462d
NFSCLIENT -> NFS
1997-01-31 03:06:06 +00:00
b7a5b84750
Treat the nswdev == 0 case like the nswap == 0 case; don't panic, just
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report no swap space. Suggested by Leo Weppleman <leo@netbsd.org>.
1997-01-22 07:28:21 +00:00
4f2a217c2b
pull up vm_object_collapse() fix from mrg_vm_object_collapse branch.
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many thanks to niklas hallqvist (niklas@appli.se ) for this.
1997-01-03 18:03:14 +00:00
f3d9c468e1
minor KNF changes.
1997-01-03 18:00:25 +00:00
8a3333b2a9
Fix an inconsistency that came in with Lite: setrq() was renamed to
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setrunqueue(), but remrq() was never renamed. Rename remrq() to
remrunqueue().
1996-11-06 20:19:19 +00:00
ee08818e7a
Fix an inconsistency that came in with Lite: setrq() was renamed to
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setrunqueue(), but remrq() was never renamed. Rename remrq() to
remrunqueue(). Also, move remrunqueue() prototype from vm/vm_extern.h
to sys/proc.h, so that it's in the same place as the setrunqueue() prototype
and other related prototypes.
1996-11-06 19:33:39 +00:00
f5927ca260
Minor nit in my change regarding const and non-ansi code...
1996-10-27 21:50:33 +00:00
2ada6af51b
Oops, part of that last commit was not meant to go in.
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The definitions of va_alist, va_dcl belong elsewhere.
1996-10-27 20:50:00 +00:00
a0d9bd5bb2
The hack-ish tricks to make the ANSI-style va_start macro work in
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non-ANSI mode were not quite complete. This makes non-ANSI work.
Perhaps it would be better to eliminate this hack altogether...
1996-10-27 20:30:52 +00:00
3ff0c0553e
* The kernel-stack no longer needs to be wired-down on the pc532.
1996-10-23 07:20:09 +00:00
9ab047883b
Fix unused variable -Wxxx failure when MINIROOTSIZE defined.
1996-10-21 01:32:38 +00:00
3dc7953eec
back out previous kprintf changes
1996-10-12 21:50:05 +00:00
thorpej