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27 Commits

Author SHA1 Message Date
John Baldwin
e8865caffb - Move 'struct swdevt' back into swap_pager.h and expose it to userland. 
- Restore support for fetching swap information from crash dumps via
  kvm_get_swapinfo(3) to fix pstat -T/-s on crash dumps.

Reviewed by:	arch@, phk
MFC after:	1 week
 2007-02-07 17:43:11 +00:00
Warner Losh
9e749cc9c5 Expand the license referenced indirectly inline. 2004-07-31 18:49:53 +00:00
Poul-Henning Kamp
b8c609915e Remove various unused variables, prototypes and local variables. 2003-07-31 21:42:12 +00:00
Poul-Henning Kamp
5d6fec5b63 Disable and lobotomize the kvm image reading swapinfo code, the kernel 
layout is about to change.

The sysctl based method still returns correct information.
 2003-07-31 21:38:32 +00:00
Poul-Henning Kamp
5243b6799b Retire the SWIF_DUMP_TREE code, this is in the way for a rework of 
the swap_pager layout.
 2003-07-31 21:30:28 +00:00
Poul-Henning Kamp
a8818ec991 Unifdef -UDEBUG_SWAPINFO The kernel data structures are about to change. 2003-07-31 20:53:04 +00:00
Matthew Dillon
57e6d29b1e Remove all use of the LOG2() macro/inline, undoing some non-optimal cruft 
that crept in recently.  GCC will optimize the divides and multiplies for us.

Submitted by:	David Schultz <dschultz@uclink.Berkeley.EDU>
MFC after:	1 day
 2003-01-11 01:09:51 +00:00
Poul-Henning Kamp
42c43e6031 Make struct swblock kernel only, to make vm/swap_pager.h userland includable. 
Move struct swdevt from sys/conf.h to the more appropriate vm/swap_pager.h.
Adjust #include use in libkvm and pstat(8) to match.
 2003-01-03 16:23:12 +00:00
Bruce Evans
6eabd84580 Compensate for "Compensate for header dethreading" by backing it out. 2001-10-10 17:48:44 +00:00
Matthew Dillon
e67f5b9fca Implement __FBSDID() 2001-09-16 21:35:07 +00:00
Thomas Moestl
e04a7c4ae5 Change this to support the new way swap device information is exported 
via sysctl, and clean up some style and (size_t != int) issues.
 2001-06-01 22:57:07 +00:00
Mark Murray
82633431b3 Compensate for header dethreading. 2001-05-01 09:24:15 +00:00
Robert Watson
ae3a37ad44 Adapt libkvm_getswapinfo() to make use of recently committed vm and swap 
sysctls exporting swap information.  When running on a live kernel,
the sysctl's will now be used instead of kvm_read, allowing consumers of
this interface to run without privilege (setgid kmem).  Retain the
ability to run on coredumps, or on a kernel using kmem if explicitly
pointed at one.

A side effect of this change is that kvm_getswapinfo() is faster now in
the general case. If the SWIF_DUMP_TREE flag is given (pstat -ss does
this), the radix tree walker, which still uses kvm_read in any case, is
invoked, and therefore does require privilege.

Submitted by:	Thomas Moestl <tmoestl@gmx.net>
Reviewed by:	freebsd-audit
 2001-02-23 18:49:16 +00:00
David E. O'Brien
1a37aa566b Add `_PATH_DEVZERO'. 
Use _PATH_* where where possible.
 2000-12-09 09:35:55 +00:00
Alfred Perlstein
b217bcfe47 remove unneded sys/ucred.h include 2000-11-30 18:34:08 +00:00
Jonathan Lemon
d707aa564d Remove unneeded #include 2000-04-16 17:36:48 +00:00
David E. O'Brien
b787589098 -Wall, which caught a real bug where buflen wasn't being set properly. 2000-03-27 00:33:45 +00:00
Peter Wemm
c4a7cdb3b6 Use kldsym(2) to lookup symbol values. This avoids the kvm_mkdb juggling 
and is module aware.  Yes, this means that kvm_nlist(3) will find symbols
in loaded modules.  The emulation of the nlist struct is pretty crude but
seems to work well enough for all the users in the tree that I found.
 1999-12-27 07:14:58 +00:00
Poul-Henning Kamp
c464420c89 Report swapdevices as cdevs rather than bdevs. 
Remove unused dev2budev() function.
 1999-11-29 21:37:18 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Peter Wemm
bf0e1ee370 Tidy up references to <sys/rlist.h> and support for the old swap management 
that went away in January.
 1999-05-11 14:32:18 +00:00
Dmitrij Tejblum
bd54ec1edf From rev. 1.12 of usr.sbin/pstat/pstat.c by phk: 
Reflect the fact that we do not swap on the first <dmmax> blocks of a
swapdev, to protect disklabels and other such magic stuff.
 1999-02-14 21:42:05 +00:00
Matthew Dillon
f3401d0c26 Handle case where no swap is configured 1999-02-06 06:31:57 +00:00
Bruce Evans
45908a6a19 Removed evil typedef kvm_swap_t and all uses of it (not many). 
Hoped for by:	wollman
 1999-01-27 11:29:15 +00:00
Matthew Dillon
876c5c1135 Fix swap radix tree dump formatting ( pstat -ss ), it was printing the 
wrong radix for recursive subnodes.
 1999-01-25 04:07:07 +00:00
Matthew Dillon
a14dedd13c Add SWIF_DEV_PREFIX flag to add "/dev/..." to device name. 1999-01-22 10:57:03 +00:00
Matthew Dillon
e92324a21e Implement kvm_getswapinfo() libkvm function. Will be used by 
pstat, top, and systat.
 1999-01-22 10:36:04 +00:00