Commit Graph

87395 Commits

Author SHA1 Message Date
jhb
0c3ac305c8 Trim an extra blank line that snuck into the last commit. 2003-03-11 22:33:42 +00:00
sam
7cc659d9ff gack; revert previous commit; not only did I read things backward but
I was in the wrong tree
2003-03-11 22:23:19 +00:00
sam
4778eecd10 sync with current: reduce default maxbatch setting from 5 to 1
Reviewed by:	re (sort of, consider this part of my previous request)
2003-03-11 22:20:43 +00:00
kan
378cd3b05d Rename vfs_stdsync function to vfs_stdnosync which matches more
closely what function is really doing. Update all existing consumers
to use the new name.

Introduce a new vfs_stdsync function, which iterates over mount
point's vnodes and call FSYNC on each one of them in turn.

Make nwfs and smbfs use this new function instead of rolling their
own identical sync implementations.

Reviewed by:	jeff
2003-03-11 22:15:10 +00:00
jhb
b2bb08b487 - Change witness_displaydescendants() to accept the indentation level as
a parameter instead of using the level of a given witness.  When
  recursing, pass an indent level of indent + 1.
- Make use of the information witness_levelall() provides in
  witness_display_list() to use an O(n) algorithm instead of an O(n^2)
  algo to decide which witnesses to display hierarchies from.  Basically,
  we only display a hierarchy for witnesses with a level of 0.
- Add a new per-witness flag that is reset at the start of
  witness_display() for all witness's and is set the first time a witness
  is displayed in witness_displaydescendants().  If a witness is
  encountered more than once in the lock order tree (which happens often),
  witness_displaydescendants() marks the later occurrences with the string
  "(already displayed)" and doesn't display the subtree under that
  witness.  This avoids duplicating large amounts of the lock order tree
  in the 'show witness' output in DDB.

All these changes serve to make 'show witness' a lot more readable and
useful than it was previously.
2003-03-11 22:14:21 +00:00
jhb
736396fc05 - Split the itismychild() function into two functions: insertchild()
adds a witness to the child list of a parent witness.  rebalancetree()
  runs through the entire tree removing direct descendants of witnesses
  who already have said child witness as an indirect descendant through
  another direct descendant.  itismychild() now calls insertchild()
  followed by rebalancetree() and no longer needs the evil hack of
  having static recursed variable.
- Add a function reparentchildren() that adds all the direct descendants
  of one witness as direct descendants of another witness.
- Change the return value of itismychild() and similar functions so that
  they return 0 in the case of failure due to lack of resources instead
  of 1.  This makes the return value more intuitive.
- Check the return value of itismychild() when defining the static lock
  order in witness_initialize().
- Don't try to setup a lock instance in witness_lock() if itismychild()
  fails.  Witness is hosed anyways so no need to do any more witness
  related activity at that point.  It also makes the code flow easier to
  understand.
- Add a new depart() function as the opposite of enroll().  When the
  reference count of a witness drops to 0 in witness_destroy(), this
  function is called on that witness.  First, it runs through the
  lock order tree using reparentchildren() to reparent direct descendants
  of the departing witness to each of the witness' parents in the tree.
  Next, it releases it's own child list and other associated resources.
  Finally it calls rebalanacetree() to rebalance the lock order tree.
- Sort function prototypes into something closer to alphabetical order.

As a result of these changes, there should no longer be 'dead' witnesses
in the order tree, and repeatedly loading and unloading a module should no
longer exhaust witness of its internal resources.

Inspired by:	gallatin
2003-03-11 22:07:35 +00:00
jhb
5aeddebb51 Trim useless "../" leading strings from filenames passed into witness. 2003-03-11 21:53:12 +00:00
jhb
42e39caaab Adjust style of #ifdef's and #endif's to be more consistent and in line
with recent additions to style(9).
2003-03-11 21:38:49 +00:00
des
2bcbb73b91 Use floating point arithmetic to compute the ETA to avoid integer overflow
during slow transfers of large files.
2003-03-11 21:33:43 +00:00
jhb
f7f4727b44 Do the lock order check skip for the LOP_TRYLOCK case after the check for
recursing on a lock instead of before.  This fixes a bug where WITNESS
could get a little confused if you did an sx_tryslock() on a sx lock that
you already had an slock on.  WITNESS would still function correctly but
it could result in weirdness in the output of 'show locks'.  This also
makes it possible for mtx_trylock() to recurse on a lock.
2003-03-11 20:54:37 +00:00
jhb
ed498389de Rework the eventhandler locking for hopefully the last time. The scheme
used popped into my head during my morning commute a few weeks ago, but
it is also very similar (though a bit simpler) to a patch that mini@
developed a while ago.  Basically, each eventhandler list has a mutex and
a run count.  During an eventhandler invocation, the mutex is held while
we traverse the list but is dropped while we execute actual handlers.  Also,
a runcount counter is incremented at the start of an invocation and
decremented at the end of an invocation.  Adding to the list is not a big
deal since the reference of a thread currently executing the handlers
remains valid across an add operation.  Whether or not new handlers are
executed by threads currently executing the handlers for a given list is
indeterminate however.  The harder case is when a handler is removed from
the list.  If the runcount is zero, the handler is simply removed from the
list directly.  If the runcount is not zero, then another thread is
currently executing the handlers of this list, so the priority of this
handler is set to a magic value (currently -1) to mark it as dead.  Dead
handlers are not executed during an invocation.  If the runcount is zero
after it is decremented at the end of an invocation, then a new
eventhandler_prune_list() function is called to remove dead handlers from
the list.

Additional minor notes:
- All the common parts of EVENTHANDLER_INVOKE() and
  EVENTHANDLER_FAST_INVOKE() have been merged into a common
  _EVENTHANDLER_INVOKE() macro to reduce duplication and ease maintenance.
- KTR logging for eventhandlers is now available via the KTR_EVH mask.
- The global eventhander_mutex is no longer recursive.

Tested by:	scottl (SMP i386)
2003-03-11 20:17:00 +00:00
ru
50bb124650 Fix and sync SYNOPSIS and usage().
Prodded by:	bde
2003-03-11 20:12:39 +00:00
jhb
ae11578729 Retire the KTR_LOCKMGR bit and use it to log eventhandler messages
instead as KTR_EVH.
2003-03-11 20:07:22 +00:00
jhb
97c1e71ca2 Axe the useless MTX_SLEEPABLE flag. mutexes are not sleepable locks.
Nothing used this flag and WITNESS would have panic'd during mtx_init()
if anything had.
2003-03-11 20:02:57 +00:00
jhb
8c7bd00836 Use a shorter and less redundant name for the sysctl tree lock. 2003-03-11 20:01:51 +00:00
jhb
a8c7b4178e Use the KTR_LOCK mask for logging events via KTR in lockmgr() rather
than KTR_LOCKMGR.  lockmgr locks are locks just like other locks.
2003-03-11 20:00:37 +00:00
jhb
559c644740 Trim leading "../" sequences from filenames. 2003-03-11 19:56:16 +00:00
jake
8e6ed1abea Use bus_space_handle_t to represent host port and virtual addresses;
bus_addr_t may not be appropriate.

Sponsored by:	DARPA, Network Associates Laboratories
2003-03-11 19:43:38 +00:00
sam
61e30fa211 FIPS 140-2 rng data tester for h/w crypto devices. This driver periodically
monitors the entropy data harvested by crypto drivers to verify it complies
with FIPS 140-2.  If data fails any test then the driver discards it and
commences continuous testing of harvested data until it is deemed ok.
Results are collected in a statistics block and, optionally, reported on
the console.  In normal use the overhead associated with this driver is
not noticeable.

Note that drivers must (currently) be compiled specially to enable use.

Obtained from:	original code by Jason L. Wright
2003-03-11 19:26:16 +00:00
sam
6cfbfc1bbb manual page for rndtest driver/module 2003-03-11 19:16:42 +00:00
sam
b2ca1e3f54 use relative pathname to driver-private file (instead of absolute) 2003-03-11 18:49:50 +00:00
sam
e1a878e4c9 correct output byte count statistic collection 2003-03-11 18:43:24 +00:00
sam
1455b394e2 add simple program to dump ubsec driver statistics 2003-03-11 18:42:20 +00:00
obrien
351221da0d Back out rev 1.60, taking the pointy hat away from nectar as 'rm -f'
doesn't need to be prefixed with '-'.  Keep the pointy hat for myself
for not reading the code closely.
2003-03-11 17:19:37 +00:00
imp
62238aca8d Remove bogus UNLOCK in if_wi.c. Since we no longer WILOCK() in the
attach routine, calling WIUNLOCK in the error case of one of the ifs
for that routine is now bogus.  This should have been removed when the
WILOCK() was removed, but wasn't.

Submitted by:  "Harti Brandt" <brandt@fokus.fraunhofer.de>
2003-03-11 17:13:33 +00:00
takawata
4f8d0aecc0 Add _HID of IrDA module and Pen tablet on
Tablet PC Acer Travel Mate C100.

Sponsored by: ACER ,Alpha Omega, MYCOM , Synnex
2003-03-11 16:49:06 +00:00
ru
559f61486d Make this work on different endianness machines.
Tested on:	sparc64

: FreeBSD/i386 bootstrap loader, Revision 1.1
: (ru@panther.freebsd.org, Tue Mar 11 05:31:14 PST 2003)
: Loading /boot/defaults/loader.conf
2003-03-11 13:48:58 +00:00
ru
edbba08415 FreeBSD 5.0 has stopped shipping /modules 2.5 years ago. Catch
up with this further by excluding /modules from the (default)
kern.module_path.
2003-03-11 12:09:25 +00:00
ru
1620c05a8d Convert kgzip(8) to be an i386 cross-tool. This is needed for
cross-releasing i386 on different architectures.  This version
provides an i386 version of <a.out.h>, and handles endianness.

Tested on:	alpha, sparc64
2003-03-11 11:45:43 +00:00
ru
a88b815b08 Revert rev. 1.244 change -- only build kgzip(8) on i386.
(The cross-release needs will be satisfied another way.)
2003-03-11 11:37:07 +00:00
des
118ffeb10c Fix style bugs in the previous commit (which weren't in bde's patch) 2003-03-11 11:35:24 +00:00
ru
26502dd8d8 No tabs here. 2003-03-11 11:14:34 +00:00
davidxu
59af771a3e Reset SIGTSTP handler to default both for parent and child process.
Submitted by: bde
2003-03-11 09:16:51 +00:00
iedowse
7808f3fb4f Make uhci_waitintr() robust to interrupts being enabled, even though
it is expected that they will not be enabled at the time that it
is called. This is reported to work around a problem in RELENG_4
where the kernel panics on boot if FAST_IPSEC and crypto support
are enabled.

Tested by:	Scott Johnson <scottj@insane.com>
2003-03-11 09:12:55 +00:00
des
7f82e9791f Clean up the ETA logic a bit and make sure it works for restarted transfers. 2003-03-11 08:21:51 +00:00
des
e75fbc13e3 Clarify that -r implies -R. 2003-03-11 08:21:16 +00:00
des
2d46bf6bbe Don't parse the proxy URL unless we're actually going to use it. No real
functional difference, but debugging output will be less confusing.
2003-03-11 08:20:58 +00:00
jeff
1e928d5480 - Regularize variable usage in cluster_read().
- Issue the io that we will later block on prior to doing cluster read ahead
   so that it is more likely to be ready when we block.
 - Loop issuing clustered reads until we've exhausted the seq count supplied
   by the file system.
 - Use a sysctl tunable "vfs.read_max" to determine the maximum number of
   blocks that we'll read ahead.
2003-03-11 06:14:03 +00:00
davidxu
deb7720003 This is a force-commit for:
kern_sig.c	1.215
kern_thread.c	1.103
kern_exit.c	1.199
proc.h		1.302

Orignal code would suspend an already suspended thread,
if user presses ^Z while a threaded program is running. Also
there is a race between job control and thread_exit(),  the
new code tests job control requesting before thread exits,
in wait() syscall, be sure to check child process is fully
stopped, this avoids a later SIGCHILD and returns STOPPED
status twice for a threaded child proc. A thread_stopped()
function is added for common code in several places.
2003-03-11 06:01:44 +00:00
davidxu
f453b04b6d Lock proc lock before changing p_flag. 2003-03-11 03:16:02 +00:00
davidxu
b47a4be33e Fix signal delivering bug for threaded process. 2003-03-11 02:59:50 +00:00
njl
178970c2cc Quirk for SanDisk ImageMate II compact flash reader
PR:		kern/47877
Submitted by:	Mike Durian <durian@boogie.com>
MFC after:	3 days
2003-03-11 02:07:17 +00:00
njl
e714ae83be Quirk for Pentax Optio 230 USB camera. Note that other products probably
use the underlying AsahiOptical USB chip and thus this quirk may need to
be generalized in the future.

PR:		kern/46369
Submitted by:	Tim Vanderhoek <vanderh@ecf.utoronto.ca>
MFC After:	3 days
2003-03-11 01:55:11 +00:00
njl
0bb11d1227 usbdevs entry for Asahi Optical OPTIO 230 digital camera. Regen. 2003-03-11 01:41:33 +00:00
anholt
110fb5930f Update Radeon PCI IDs and naming from pciids.sf.net. 2003-03-11 01:38:17 +00:00
davidxu
5bae8e4c5d Fix long standing job control bug. SIGTSTP shouldn't be ignored.
Special instructions tested:
suspend
stop $$
2003-03-11 00:10:22 +00:00
davidxu
bb4f70ad77 Fix threaded process job control bug. SMP tested.
Reviewed by: julian
2003-03-11 00:07:53 +00:00
phk
29e1315705 If we run out of consumers while orphaning them, and the provider's geom
is withering, destroy the provider when done.

This was exposed by the recent change to geom_dev's orphaning logic.
2003-03-10 23:41:41 +00:00
phk
35dab36ffa Fix yet another fallout of our M_* song and dance. 2003-03-10 23:34:12 +00:00
jake
4772824f71 "Or" is expressed with 2 separate config lines.
Reported by:	Stijn Hoop <stijn@win.tue.nl>
2003-03-10 23:25:54 +00:00