Commit Graph

87296 Commits

Author SHA1 Message Date
Ian Dowse
a80cc4e104 In m_dup_pkthdr(), convert the supplied `how' argument into malloc
flags when passing it into m_tag_copy_chain(), as m_tag* functions
use malloc, not mbuf flags.
2003-03-13 09:02:19 +00:00
Søren Schmidt
64eca1e1f2 Add pci id# for the sis648 2003-03-13 07:55:53 +00:00
Jeff Roberson
749ffa4ecd - Add a lock for protecting against msleep(bp, ...) wakeup(bp) races.
- Create a new function bdone() which sets B_DONE and calls wakup(bp). This
   is suitable for use as b_iodone for buf consumers who are not going
   through the buf cache.
 - Create a new function bwait() which waits for the buf to be done at a set
   priority and with a specific wmesg.
 - Replace several cases where the above functionality was implemented
   without locking with the new functions.
2003-03-13 07:31:45 +00:00
Jeff Roberson
e99215a614 - Remove a dead check for bp->b_vp == vp in vtruncbuf(). This has not been
possible for some time.
 - Lock the buf before accessing fields.  This should very rarely be locked.
 - Assert that B_DELWRI is set after we acquire the buf.  This should always
   be the case now.
2003-03-13 07:22:53 +00:00
Jeff Roberson
09f11da5a3 - Remove a race between fsync like functions and flushbufqueues() by
requiring locked bufs in vfs_bio_awrite().  Previously the buf could
   have been written out by fsync before we acquired the buf lock if it
   weren't for giant.  The cluster_wbuild() handles this race properly but
   the single write at the end of vfs_bio_awrite() would not.
 - Modify flushbufqueues() so there is only one copy of the loop.  Pass a
   parameter in that says whether or not we should sync bufs with deps.
 - Call flushbufqueues() a second time and then break if we couldn't find
   any bufs without deps.
2003-03-13 07:19:23 +00:00
Jeff Roberson
f5f0dee483 - Lock the buf before clearing flags. 2003-03-13 07:07:16 +00:00
Jeff Roberson
c033bdc013 - Lock bufs before inspecting their flags. 2003-03-13 07:05:22 +00:00
Jeff Roberson
619bddc702 - Lock the buf before inspecting its contents. 2003-03-13 07:04:11 +00:00
Tim J. Robbins
542bd65fcb MFp4: Implementations of the wcstof() and wcstold() functions. 2003-03-13 06:29:53 +00:00
Alfred Perlstein
569d3c4bf0 Make sure we actually have a dev before dereferencing in case someone
botches and sends us a NULL pointer.  The other code in this file seems
to expect it to be able to handle it behaving this way.
2003-03-13 06:29:44 +00:00
Jeff Roberson
de950c003c - Tune down read_max. For single disks we get no gain out of reading more
than a MAXPHYS size block ahead.  Having this set too high just leaves
   other processes starved for IO and screws up interactive response.  Let the
   users with RAID set it higher when they need it.
2003-03-13 06:17:59 +00:00
Tim J. Robbins
48755f216d MFp4: Catch up to recent __dtoa() interface changes and removal of cvt()'s
last argument.
2003-03-13 05:49:09 +00:00
Jeffrey Hsu
01f98321e6 Document the net.inet.tcp.rfc3390 sysctl variable. 2003-03-13 01:44:58 +00:00
Jeffrey Hsu
da3a8a1a4f Add support for RFC 3390, which allows for a variable-sized
initial congestion window.
2003-03-13 01:43:45 +00:00
Tim J. Robbins
6ec62361c8 Tidy up previous change: move comment about obtaining an exclusive
reference where it belongs, and remove a blank line to make it more
obvious what the comment applies to.
2003-03-13 00:57:47 +00:00
Tim J. Robbins
262c27b846 Back out previous. The locking here needs a rethink. 2003-03-13 00:54:53 +00:00
Maxime Henrion
f3b8b63b15 Pass the correct malloc flags to m_tag_alloc(). 2003-03-13 00:30:31 +00:00
David Schultz
72d97679ff - When the VM daemon is out of swap space and looking for a
process to kill, don't block on a map lock while holding the
  process lock.  Instead, skip processes whose map locks are held
  and find something else to kill.
- Add vm_map_trylock_read() to support the above.

Reviewed by:	alc, mike (mentor)
2003-03-12 23:13:16 +00:00
Jeffrey Hsu
edcd017d67 Document the net.inet.tcp.rfc3042 sysctl variable. 2003-03-12 20:44:06 +00:00
David Schultz
703d65601d Document strtof() and strtold(). Update vendor license.
Reviewed by:	bde (briefly), mike (mentor), obrien
2003-03-12 20:31:05 +00:00
David Schultz
6a66acb565 Replace our ancient dtoa/strtod implementation with the gdtoa
package, a more recent, generalized set of routines.  Among the
changes:
- Declare strtof() and strtold() in stdlib.h.
- Add glue to libc to support these routines for all kinds
  of ``long double''.
- Update printf() to reflect the fact that dtoa works slightly
  differently now.

As soon as I see that nothing has blown up, I will kill
src/lib/libc/stdlib/strtod.c.  Soon printf() will be able
to use the new routines to output long doubles without loss
of precision, but numerous bugs in the existing code must
be addressed first.

Reviewed by:	bde (briefly), mike (mentor), obrien
2003-03-12 20:30:00 +00:00
Jeffrey Hsu
582a954b00 Implement the Limited Transmit algorithm (RFC 3042). 2003-03-12 20:27:28 +00:00
David Schultz
de9840c6e5 Local patches:
- include extra system headers and add appropriate #defines
- use a spinlock to synchronize parts of gdtoa
- protect exported symbols with leading underscores

Reviewed by:	bde (briefly), mike (mentor), obrien
2003-03-12 20:20:22 +00:00
David Schultz
19a59cf3b3 This commit was generated by cvs2svn to compensate for changes in r112158,
which included commits to RCS files with non-trunk default branches.
2003-03-12 20:18:32 +00:00
David Schultz
cc36ccd13b Initial import of David Gay's gdtoa library for conversion between
strings and floating point.
2003-03-12 20:18:32 +00:00
John Baldwin
8510f2a833 - Various little style fixes.
- If SYSCTL_OUT() fails in sysctl_kern_proc_args(), return the error
  instead of ignoring it if we have new arguments for the process.
- If the new arguments for a process are too long, return ENOMEM instead of
  returning success but not doing the actual copy.

Submitted by:	bde
2003-03-12 20:17:40 +00:00
Mike Makonnen
fe71e0b83d Ditch a static global and the mutex that protected it. Achieve the
desired strptime(3) reentrancy by adding an extra argument to _strptime()
instead.

Approved by:	markm (mentor)
MFC:		4 weeks
2003-03-12 19:22:57 +00:00
Maxim Sobolev
525e5ed929 Correct clock frequency for the IC Book Labs' cards, so that it's possible
to use speeds higher than 115200.

Sponsored by:	IC Book Labs
MFC after:	2 weeks
2003-03-12 17:56:03 +00:00
Maxim Sobolev
a2a101e766 Add initial support for IC Book Labs Dreadnought x16 Pro 16-ports card. Since
this card is based on 16750 UART, modify sio(4) a bit to ignore 16750-specific
7th bit of MCR when probing card. This allows card to be detected and attached
as 16550A-compatible device. More work needs to be done in order to enable
nice 16750-specific features such as larger fifo buffer and higher speeds.

Sponsored by:	IC Book Labs
MFC after:	2 weeks
2003-03-12 17:20:24 +00:00
Greg Lewis
1f006b061a Happy birthday to me :) 2003-03-12 16:59:30 +00:00
John Baldwin
4bc6471b53 - Avoid dropping the proc lock around a simple permissions check and just
hold hold it across the check to avoid extra lock operations in the
  common case.
- Copy in the new args to a temporary pargs structure before we drop the
  reference to the old one.  Thus, if the copyin() fails, the process
  arguments are unchanged rather than being deleted.  Also, p_args is no
  longer NULL during the sysctl operation.
2003-03-12 16:14:55 +00:00
Søren Schmidt
deff57d72c Correct the last commit, only look for subfunctions on the same PCI slot. 2003-03-12 15:45:52 +00:00
Orion Hodson
b2a0f525e6 Correct CS4205 base vendor id.
Reported by:    Christophe Juniet and Mark Santcroos.
2003-03-12 15:11:25 +00:00
Sam Leffler
4a692a1fc2 correct two more flag misuses; m_tag* use malloc flags 2003-03-12 14:45:22 +00:00
Ruslan Ermilov
8abe8104f3 Update for FILE v3.41. 2003-03-12 14:37:01 +00:00
Ruslan Ermilov
99bca5069e Simplify the assignment statement. 2003-03-12 14:32:46 +00:00
Ruslan Ermilov
6f63bc577d Record the sudden death of bsd.kern.mk and bsd.sgml.mk. 2003-03-12 14:31:36 +00:00
Ruslan Ermilov
4d31f60ec3 Record the BOG death here too. 2003-03-12 14:29:15 +00:00
David Malone
5560a5abb3 Document the fact that hdestory calls free on the keys added with
hsearch(.., ENTER). Make the example reflect this.

PR:		49951
Submitted by:	Peter Jeremy <peterjeremy@optushome.com.au>
2003-03-12 14:18:14 +00:00
Søren Schmidt
5b24125046 Cleanup the probe code a bit. 2003-03-12 12:05:17 +00:00
Tim J. Robbins
a7cbe87a5e Acquire sched_lock around use of FOREACH_KSEGRP_IN_PROC, accesses
to kg_nice and calls to sched_nice() in getpriority() and setpriority()
(really donice()).
2003-03-12 11:24:41 +00:00
Tim J. Robbins
3890793e9c In wait1(), remove the zombie process from zombproc before removing
it from its pgrp to avoid leaving zombies around with p_pgrp == NULL.
This bug was apparent as a NULL-dereference in the pid selection code
in fork1().
2003-03-12 11:10:04 +00:00
Søren Schmidt
9eb8572ea2 Dont hang the channel on enclosures without sensors. 2003-03-12 10:59:35 +00:00
Hidetoshi Shimokawa
d067ce208d Put back including sys/devicestat.h for 4-stable. 2003-03-12 10:36:53 +00:00
Kenjiro Cho
fec4b7015e clean up the en driver since it will survice for a while by
Harti Brandt's effort.
remove the DMA test to detect problems of the first generation PCI chipsets
back in 1998.
it is no longer needed and has been the source of the false alarm that
the driver uses too much stack space.
2003-03-12 10:28:26 +00:00
Sean Chittenden
99c24e2b2c Update sendfile.2 to include a TUNING section that documents the
various tunables that are applicable to sendfile(2).  Update tuning.7
to mention a reference to sendfile.2.

Approved by:	keramida
2003-03-12 09:28:44 +00:00
Jake Burkholder
4d3f408cee - Added support for multiple page directory pages to pmap_pinit and
pmap_release.
- Merged pmap_release and pmap_release_free_page.  When pmap_release is
  called only the page directory page(s) can be left in the pmap pte object,
  since all page table pages will have been freed by pmap_remove_pages and
  pmap_remove.  In addition, there can only be one reference to the pmap and
  the page directory is wired, so the page(s) can never be busy.  So all there
  is to do is clear the magic mappings from the page directory and free the
  page(s).

Sponsored by:	DARPA, Network Associates Laboratories
2003-03-12 07:38:37 +00:00
Tim J. Robbins
1609edca75 MFp4: Reduce code size by 26 bytes by only aligning the jump targets that
are at the top of loops.
2003-03-12 06:46:16 +00:00
Tim J. Robbins
07648c8bb8 MFp4: Make `spanp' const. 2003-03-12 06:41:49 +00:00
Sam Leffler
9adc8e4d75 correct malloc flag argument
Reported by:	Kris Kennaway <kris@obsecurity.org>
2003-03-12 06:08:48 +00:00