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Commit Graph

111682 Commits

Author SHA1 Message Date
Jeff Roberson
66ca1b4878 - Use VFS_LOCK_GIANT() in place of mtx_lock(&giant), etc.
Sponsored By:	Isilon Systems, Inc.
2005-01-24 10:19:31 +00:00
Jeff Roberson
08023360a0 - Convert the global LK lock to a mutex.
- Expand the scope of lk to cover not only interrupt races, but also
   top-half races, which includes many new uses over global top-half
   only data.
 - Get rid of interlocked_sleep() and use msleep or BUF_LOCK where
   appropriate.
 - Use the lk mutex in place of the various hand rolled semaphores.
 - Stop dropping the lk lock before we panic.
 - Fix getdirtybuf() callers so that they reacquire access to whatever
   softdep datastructure they were inxpecting in the failure/retry
   case.  Previously, sleeps in getdirtybuf() could leave us with
   pointers to bad memory.
 - Update handling of ffs to be compatible with ffs locking changes.

Sponsored By:	Isilon Systems, Inc.
2005-01-24 10:18:31 +00:00
Jeff Roberson
3ba649d792 - Initialize and destroy the per-filesystem ufs lock where appropriate.
- Use the buffer lock on the superblock buf to serialize calls to
   sbupdate.
 - Set the MNTK_MPSAFE flag when QUOTA is not defined in the kernel.

Sponsored By:	Isilon Systems, Inc.
2005-01-24 10:12:28 +00:00
Jeff Roberson
dec351f69e - Remove GIANT_REQUIRED where giant is no longer required.
Sponsored By:	Isilon Systems, Inc.
2005-01-24 10:10:47 +00:00
Jeff Roberson
5cef9d6add - Use the ufs lock to protect fs_active.
Sponsored By:	Isilon Systems, Inc.
2005-01-24 10:10:11 +00:00
Jeff Roberson
353255885c - Acquire the ufs lock around several ffs_alloc functions that require
it.

Sponsored By:	Isilon Systems, Inc.
2005-01-24 10:09:10 +00:00
Jeff Roberson
8e37fbad3a - Don't use atomic operations to deal with the active array, instead
it is now quite naturally protected by the ufsmount mutex.
 - Use the ufs lock to protect various fields in struct fs, primarily the
   cg summary needs protection to avoid allocation races.  Several
   functions have been slightly re-arranged to reduce the number of
   lock operations.
 - Adjust several functions (blkfree, freefile, etc.) to accept a
   ufsmount as an argument so that we may access the ufs lock.

Sponsored By:	Isilon Systems, Inc.
2005-01-24 10:08:35 +00:00
Jeff Roberson
5c77b03eff - Acquire the ufs lock when manipulating some fields of struct fs.
- Change arguments to various ffs functions to match their new
   prototypes.

Sponsored By:	Isilon Systems, Inc.
2005-01-24 10:04:22 +00:00
Jeff Roberson
f2aa1113a3 - Mark the struct fs members that require the ufsmount mutex.
- Define some macros for manipulating the fs_active bitmap.

Sponsored By:	Isilon Systems, Inc.
2005-01-24 10:03:17 +00:00
Jeff Roberson
aaee366929 - Change some function parameters so that the ufsmount structure is
accessable in places where the ufs lock will be needed.

Sponsored By:	Isilon Systems, Inc.
2005-01-24 10:02:11 +00:00
Jeff Roberson
751d0d9fc9 - Add a mutex to the ufsmount structure. This mutex is used to protect
any per-instance global data that is not already protected by a
   buf or vnode lock.  Presently, only fields in ffs's struct fs utilize
   this lock.
 - Sort some ufsmount members so that fields used for quotas are grouped
   together.  This is in anticipation of quota locking.

Sponsored By:	Isilon Systems, Inc.
2005-01-24 10:01:10 +00:00
Jeff Roberson
8a22eb497b Force commit to note the sponsor of the VFS smp work:
Sponsored By:	Isilon Systems, Inc.
2005-01-24 09:58:23 +00:00
Jeff Roberson
44187a8b29 - Add two new flags to the nd structure. MPSAFE indicates that the
caller may not be holding Giant, and namei() should acquire it as
   necessary.  HASGIANT is used to indicate when namei() is returning
   with a reference to a vnode that requires giant, and giant is locked.
 - Add the macro NDHASGIANT() which can be used in conjunction with
   VFS_UNLOCK_GIANT() in callers who have marked the nd with MPSAFE.

Sponsored By:	Isilon Systems, Inc.
2005-01-24 09:57:35 +00:00
Jeff Roberson
db50d057fd - Add the mount flag MNTK_MPSAFE which indicates whether or not Giant
must be held when any vnode owned by the filesystem is manipulated.
 - Add VFS_LOCK_GIANT and VFS_UNLOCK_GIANT macros which are used to
   conditionally lock and unlock Giant based on a particular mountpoint.
2005-01-24 09:53:46 +00:00
Jeff Roberson
8c74387334 - Add a new KTR class for the buffer cache. 2005-01-24 09:51:35 +00:00
Warner Losh
d4c6cdea21 Ignore the expected function number.
NetBSD went this route a while ago.  FreeBSD originally tried this to
cope with multifunction cards.  However, it turns out that we're
better off not worrying about the function number, and instead worry
about the function type for the function.  This has worked well in
NetBSD, and all FreeBSD's relevant drivers have been converted.

# I'll rework the macros that specify them shortly, as soon as I can
# come up with a good, compatible way to deal...
2005-01-24 06:54:05 +00:00
Warner Losh
7d57300f4c u_intXX_t -> uintXX_t 2005-01-24 06:48:26 +00:00
Olivier Houchard
fa4813f103 Bring back WARNS to 3 for arm until I figure out how to make gcc happy. 2005-01-24 01:56:06 +00:00
George V. Neville-Neil
b986ced475 Fix a dangling MKLINK from my last commit.
Approved by:	rwatson (mentor)
2005-01-24 01:40:16 +00:00
Olivier Houchard
15d3b4db61 Define FE_TONEAREST, FE_TOWARDZERO, FE_UPWARD, FE_DOWNWARD and _ROUND_MASK to
unbreak the build for arm.
2005-01-24 00:35:02 +00:00
Scott Long
35e050281e Add support for the LSI 320-2E PCI-Express controller. Fix a couple of bugs
in the ioctl handler.  Update the LSI copyrights for these.

Obtained from: LSI, Corp
2005-01-23 23:25:41 +00:00
Scott Long
a56d2b5a51 Add my copyright for the locking and busdma work. 2005-01-23 23:22:34 +00:00
Yaroslav Tykhiy
c6e6ca3e7b Reduce the global name space pollution.
The cloner structure isn't referenced by name outside this file.
2005-01-23 23:10:33 +00:00
David Schultz
cb2d2321cd Update comment to reflect the code change in the previous revision.
Noticed by:	ceri
2005-01-23 22:56:08 +00:00
Scott Long
da6297fcf9 Provide a needed argument to AT_MAKE_TAGID. 2005-01-23 22:33:59 +00:00
Olivier Houchard
4b62274965 Make sure we can boot both with and without MMU enabled. 2005-01-23 22:08:31 +00:00
Olivier Houchard
356607e0c6 Define bus_dmamap_load_buffer before bus_dmamap_load to make gcc happy. 2005-01-23 22:07:33 +00:00
David Schultz
52611c608e Many changes, including the following major ones:
- Rearrange the list of functions into categories.
- Remove the ulps column.  It was appropriate for only some
  of the functions in the list, and correct for even fewer
  of them.
- Add some new paragraphs, and remove some old ones about
  NaNs that may do more harm than good.
- Document precisions other than double-precision.
2005-01-23 22:05:33 +00:00
Olivier Houchard
3382533d46 Fix compile for !KTR. 2005-01-23 21:39:23 +00:00
Robert Watson
3f7c86a8c3 Bump the default maximum on nfsd processes from 20 to 256. Real-world
measurements suggest that higher degrees of parallelism for large
numbers of clients help performance substantially.

Submitted by:	Eric Anderson <anderson at centtech dot com>
2005-01-23 21:34:00 +00:00
Robert Watson
471135a3af Style cleanup: with removal of mutex operations, we can also remove
{}'s from securelevel_gt() and securelevel_ge().

MFC after:	1 week
2005-01-23 21:11:39 +00:00
Robert Watson
0b880542e6 When reading pr_securelevel from a prison, perform a lockless read,
as it's an integer read operation and the resulting slight race is
acceptable.

MFC after:	1 week
2005-01-23 21:01:00 +00:00
Robert Watson
4261ed50fd When retrieving the current per-jails securelevel for a sysctl read,
don't acquire the prison mutex, as it's an integer read and races
here don't make a difference.

MFC after:	1 week
2005-01-23 20:59:19 +00:00
Alan Cox
7258e9687b Correctly move the packet header in ip_insertoptions().
Reported by: Anupam Chanda
Reviewed by: sam@
MFC after: 2 weeks
2005-01-23 19:43:46 +00:00
Ian Dowse
641a1aa10d Attempt to describe the race conditions that must be considered
when using the callout subsystem. Show how the callout_pending(),
callout_active() and callout_deactivate() macros can be used to
achieve simpler race-free callout semantics in many situations.
2005-01-23 17:42:48 +00:00
David Schultz
e33621db7f - Document ldexpf().
- Although ldexp() is in libc for backwards compatibility, ldexpf() is
  in its proper place in libm.  Document both as being in libm.
- The ldexp() and ldexpf() functions conform to C99.
2005-01-23 16:49:49 +00:00
David Schultz
6f1dd8edc0 - Document frexpf().
- Neither frexp() nor frexpf() set errno.
- Although frexp() is in libc for backwards compatibility, frexpf() is
  in its proper place in libm.  Document both as being in libm.
- The frexp() and frexpf() functions conform to C99.
2005-01-23 16:49:40 +00:00
Pawel Jakub Dawidek
e4d1918415 We cannot use sed(1), because rc.d/gbde has to be called before
rc.d/mountcritlocal and sed(1) is placed in /usr/bin/. Other useful tools
for this task are also placed in /usr/ (tr(1), awk(1)), so I implemented
local_tr() function which works simlar to tr(1).

Reported by:	Amir Shalem <amir@boom.org.il>
MFC after:	1 week
2005-01-23 16:43:55 +00:00
Scott Long
d563f671c3 Fix whitespace 2005-01-23 16:13:10 +00:00
George V. Neville-Neil
6617cf5778 Submitted by: George V. Neville-Neil (gnn at freebsd dot org)
Reviewed by: Kame Project (including Itojun-san, Jinmei-san and Suzuki-san)
Approved by: Robert Watson (robert at freebsd dot org)
Obtained from:	Kame Project and OpenBSD

Replace manual pages that may have violated the IETF's Copyright.

All come from the Kame tree.

Several were from OpenBSD except for ip6.4, and the inet6* pages which were
rewritten by me.

All of the text is new and drawn from reading the code and
documentation.
2005-01-23 16:02:48 +00:00
Robert Watson
16417879f1 The final argument to verify_krb_v5_tgt() is the debug flag, not the
ticket forwardable flag, so key generation of debugging output to
"debug" rather than "forwardable".

Update copyright.

MFC after:	3 days
2005-01-23 15:57:07 +00:00
David Schultz
3c4d0a0973 If x == y, return y, not x. C99 (though not IEEE 754) requires that
nextafter(+0.0, -0.0) returns -0.0 and nextafter(-0.0, +0.0) returns +0.0.
2005-01-23 15:46:22 +00:00
George V. Neville-Neil
b8a3e40819 Submitted by: George V. Neville-Neil (gnn at freebsd dot org)
Approved by: Robert Watson (robert at freebsd dot org)

Remove files in preparation for replacement with totally new versions
of the manual pages.

Update the Makefile to handle the new file to be added.
2005-01-23 15:41:10 +00:00
Robert Watson
5be3971166 Minor white space tweak.
MFC after:	3 days
2005-01-23 15:28:02 +00:00
Robert Watson
20e3484680 Remove an obsoleted comment about struct versions.
MFC after:	3 days
Pointed out by:	trhodes
2005-01-23 14:26:09 +00:00
Xin LI
7f1a765333 According to style.Makefile(5):
WARNS?= should appear before CFLAGS

Reviewed by:	ru
2005-01-23 12:29:46 +00:00
Julian Elischer
2f4829e6cb Add code to do better auto detection of tuner types etc.
PR:		kern/75831
Submitted by:	Branko Lankester <branko@euro.net>
MFC after:	1 week
2005-01-23 07:13:09 +00:00
Matt Jacob
796a9ee342 Remember to snag firmware for the DELL OEM (6312) card
MFC after:	2 days
2005-01-23 06:37:28 +00:00
Matt Jacob
1b94141649 Add some macros for inserting tag ids.
MFC after:	2 weeks
2005-01-23 06:28:49 +00:00
Matt Jacob
182d1c037e Macroize the making of tag ids.
MFC after:	2 weeks
2005-01-23 06:28:08 +00:00