Commit Graph

1897 Commits

Author SHA1 Message Date
Pawel Jakub Dawidek
ad4f4b2be8 Update links for taskqueue(9) functions. 2010-10-18 12:35:48 +00:00
Konstantin Belousov
251e7dbf42 Document vunref(9), add some important notes for vrele(9) and vput(9).
Merge all three manpages to one, removing separate file for vput(9).

MFC after:	1 week
2010-10-17 16:30:33 +00:00
Lawrence Stewart
1c6cae9711 Change uma_zone_set_max to return the effective value of "nitems" after
rounding. The same value can also be obtained with uma_zone_get_max, but this
change avoids a caller having to make two back-to-back calls.

Sponsored by:	FreeBSD Foundation
Reviewed by:	gnn, jhb
2010-10-16 04:41:45 +00:00
Lawrence Stewart
c4ae7908a7 - Simplify implementation of uma_zone_get_max.
- Add uma_zone_get_cur which returns the current approximate occupancy of
  a zone. This is useful for providing stats via sysctl amongst other things.

Sponsored by:	FreeBSD Foundation
Reviewed by:	gnn, jhb
MFC after:	2 weeks
2010-10-16 04:14:45 +00:00
Matthew D Fleming
bf73d4d28e Use a safer mechanism for determining if a task is currently running,
that does not rely on the lifetime of pointers being the same. This also
restores the task KBI.

Suggested by:	jhb
MFC after:	1 month
2010-10-13 22:59:04 +00:00
Matthew D Fleming
a92f0ee866 Re-expose and briefly document taskqueue_run(9). The function is used
in at least one 3rd party driver.

Requested by:	jhb
2010-10-12 18:36:03 +00:00
Ulrich Spörlein
0d9deed52c mdoc: drop redundant .Pp and .LP calls
They have no effect when coming in pairs, or before .Bl/.Bd
2010-10-08 12:40:16 +00:00
Jaakko Heinonen
68f7a01392 Check the device name validity on device registration.
A new function prep_devname() sanitizes a device name by removing
leading and redundant sequential slashes. The function returns an error
for names which already exist or are considered invalid.

A new flag MAKEDEV_CHECKNAME for make_dev_p(9) and make_dev_credf(9)
indicates that the caller is prepared to handle an error related to the
device name. An invalid name triggers a panic if the flag is not
specified.

Document the MAKEDEV_CHECKNAME flag in the make_dev(9) manual page.

Idea from:	kib
Reviewed by:	kib
2010-10-07 18:00:55 +00:00
Glen Barber
8d89b8f2a2 I believe the majority of Gregorian calendars would agree the current
year is 2010, not 2005.

Approved by:	keramida (mentor)
Pointy hat to:	gjb
MFC after:	1 week
2010-09-12 17:53:36 +00:00
Glen Barber
f3f9858578 Bump date from r212440.
Approved by:	keramida (mentor)
MFC after:	1 week
2010-09-12 14:04:54 +00:00
Glen Barber
9d839c44c1 Add RETURN VALUES section to devclass_get_maxunit(9).
PR:		149979
Submitted by:	gcooper
Patch by:	gcooper
Approved by:	keramida (mentor)
MFC after:	1 week
2010-09-10 23:22:01 +00:00
Matthew D Fleming
4d369413e1 Replace sbuf_overflowed() with sbuf_error(), which returns any error
code associated with overflow or with the drain function.  While this
function is not expected to be used often, it produces more information
in the form of an errno that sbuf_overflowed() did.
2010-09-10 16:42:16 +00:00
Matthew D Fleming
4351ba272c Add drain functionality to sbufs. The drain is a function that is
called when the sbuf internal buffer is filled.  For kernel sbufs with a
drain, the internal buffer will never be expanded.  For userland sbufs
with a drain, the internal buffer may still be expanded by
sbuf_[v]printf(3).

Sbufs now have three basic uses:
1) static string manipulation.  Overflow is marked.
2) dynamic string manipulation.  Overflow triggers string growth.
3) drained string manipulation.  Overflow triggers draining.

In all cases the manipulation is 'safe' in that overflow is detected and
managed.

Reviewed by:	phk (the previous version)
2010-09-09 17:49:18 +00:00
Matthew D Fleming
db960cf00a Fix small errors in the sbuf(9) man page. 2010-09-09 16:27:02 +00:00
Konstantin Belousov
5e9cd1dbf8 Document MAKEDEV_ETERNAL.
MFC after:	3 days
2010-09-05 14:47:46 +00:00
Max Laier
36058c09e4 rmlock(9) two additions and one change/fix:
- add rm_try_rlock().
 - add RM_SLEEPABLE to use sx(9) as the back-end lock in order to sleep while
   holding the write lock.
 - change rm_noreadtoken to a cpu bitmask to indicate which CPUs need to go
   through the lock/unlock in order to synchronize.  As a side effect, this
   also avoids IPI to CPUs without any readers during rm_wlock.

Discussed with:		ups@, rwatson@ on arch@
Sponsored by:		Isilon Systems, Inc.
2010-09-01 19:50:03 +00:00
Rebecca Cran
e7f8dd75b3 Fix incorrect usage of 'assure' and 'insure'.
Approved by: rrs (mentor)
2010-08-28 16:32:01 +00:00
Edward Tomasz Napierala
6b85cd6ddc s/ithread/interrupt thread/ 2010-08-24 21:38:44 +00:00
Ed Schouten
cd1c27af36 Add missing mlink for insmntque1().
MFC after:	1 week
2010-08-22 16:42:46 +00:00
Joel Dahl
c2025a7660 Fix typos, spelling, formatting and mdoc mistakes found by Nobuyuki while
translating these manual pages.  Minor corrections by me.

Submitted by:	Nobuyuki Koganemaru <n-kogane@syd.odn.ne.jp>
2010-08-16 15:18:30 +00:00
Christian Brueffer
0f7e249192 Fixed a typo.
PR:		148701
Submitted by:	Glen Barber <glen.j.barber@gmail.com>
MFC after:	1 week
2010-08-15 21:37:30 +00:00
Christian Brueffer
6a8d8aa193 Tie up some loose ends r88509 left behind:
- chooseproc() is long gone, MLINK choosethread instead
- Update NAME section for choosethread
- Mark chooseproc.9 for removal

PR:             149549
Submitted by:   pluknet
MFC after:	1 week
2010-08-15 21:25:52 +00:00
Matthew D Fleming
e3813573bd Rework memguard(9) to reserve significantly more KVA to detect
use-after-free over a longer time.  Also release the backing pages of
a guarded allocation at free(9) time to reduce the overhead of using
memguard(9).  Allow setting and varying the malloc type at run-time.
Add knobs to allow:

 - randomly guarding memory
 - adding un-backed KVA guard pages to detect underflow and overflow
 - a lower limit on the size of allocations that are guarded

Reviewed by:    alc
Reviewed by:    brueffer, Ulrich Spörlein <uqs spoerlein net> (man page)
Silence from:   -arch
Approved by:    zml (mentor)
MFC after:      1 month
2010-08-11 22:10:37 +00:00
Dag-Erling Smørgrav
c3a2dbe9e5 Document the MEXTADD macro.
MFC after:	2 weeks
2010-08-07 13:26:08 +00:00
Stefan Farfeleder
6da339ce79 Add links for destroy_dev_drain, destroy_dev_sched, destroy_dev_sched_cb,
make_dev_cred and make_dev_credf.
2010-08-06 16:50:48 +00:00
Joel Dahl
f6ac23919b Fix typos and spelling mistakes. 2010-08-06 14:33:42 +00:00
Pawel Jakub Dawidek
3035649e73 Correct function name.
MFC after:	3 days
2010-08-01 21:54:25 +00:00
Joel Dahl
b06cfd40f9 Fix a bunch of typos and spelling mistakes. 2010-07-31 12:14:28 +00:00
Joel Dahl
9ba4735280 Spelling fixes. 2010-07-31 10:01:15 +00:00
Simon L. B. Nielsen
74aed54846 Missing IFCAP_* macro descriptions in ifnet(9).
PR:		docs/148952
Submitted by:	Lars Hartmann <lars@chaotika.org>
MFC after:	2 weeks
2010-07-27 08:45:29 +00:00
Matthew D Fleming
242ed5d96c Fix taskqueue_drain(9) to not have false negatives. For threaded
taskqueues, more than one task can be running simultaneously.

Also make taskqueue_run(9) static to the file, since there are no
consumers in the base kernel and the function signature needs to change
with this fix.

Remove mention of taskqueue_run(9) and taskqueue_run_fast(9) from the
taskqueue(9) man page.

Reviewed by:    jhb
Approved by:    zml (mentor)
2010-07-22 16:41:09 +00:00
Jaakko Heinonen
13c02cbb18 Extend the kernel unit number allocator for allocating specific unit
numbers. This change adds a new function alloc_unr_specific() which
returns the requested unit number if it is free. If the number is
already allocated or out of the range, -1 is returned.

Update alloc_unr(9) manual page accordingly and add a MLINK for
alloc_unr_specific(9).

Discussed on:	freebsd-hackers
2010-07-05 16:23:55 +00:00
Alan Cox
b64400a03f Improve the comment and man page for vm_page_alloc(). Specifically,
document one of the optional flags; clarify which of the flags are
optional (and which are not), and remove mention of a restriction on
the reclamation of cached pages that no longer holds since version 7.

MFC after:	1 week
2010-07-03 18:25:37 +00:00
Colin Percival
bb48785424 Note that internal_underscores should be used in identifier names rather
than camelCase or TitleCase.

According to grep and my checked-out source tree, we're currently at
3733379 internal_underscores, 93024 camelCases, and 80831 TitleCases;
so this commit is merely documenting existing practice.
2010-06-27 02:30:19 +00:00
Jaakko Heinonen
3141712daa Update vfs_busy(9) and vfs_unbusy(9) manual pages to better match the
current behaviour of the functions.

Discussed with:	attilio
2010-06-14 17:31:46 +00:00
Ulrich Spörlein
134d45e8c6 mdoc nitpicking: the title argument shall be uppercase 2010-06-11 06:03:47 +00:00
Ulrich Spörlein
e10c1be450 mdoc cleanup
Garbage collect unused sections, macros and arguments. Fix prologue and
remove empty lines.

Found by: mdocml
2010-06-02 10:20:23 +00:00
Ulrich Spörlein
25c8b07fc2 mdoc: Garbage collect unused/unneeded macros 2010-05-27 13:56:27 +00:00
Ulrich Spörlein
668d8dd3c8 These features will first appear in 8.1, soon to be released
MFC after:	3 days
2010-05-24 11:14:40 +00:00
Ulrich Spörlein
62486687ed mdoc: consistently spell our email addresses <foo@FreeBSD.org>
Reviewed by:	ru
2010-05-19 08:57:53 +00:00
Ulrich Spörlein
0b31f1f731 mdoc: move remaining sections into consistent order
This pertains mostly to FILES, HISTORY, EXIT STATUS and AUTHORS sections.

Found by:	mdocml lint run
Reviewed by:	ru
2010-05-13 12:08:11 +00:00
Ulrich Spörlein
0afc94c17a mdoc: move CAVEATS, BUGS and SECURITY CONSIDERATIONS sections to the
bottom of the manpages and order them consistently.

GNU groff doesn't care about the ordering, and doesn't even mention
CAVEATS and SECURITY CONSIDERATIONS as common sections and where to put
them.

Found by:	mdocml lint run
Reviewed by:	ru
2010-05-13 12:07:55 +00:00
Konstantin Belousov
2b848cb1f5 Document MAKEDEV_NOWAIT flag for make_dev_credf(9).
Reviewed by:	jh
MFC after:	2 weeks
2010-05-06 19:23:49 +00:00
Rui Paulo
54862540ba Couple of fixes from DragonFly (typos).
Obtained from:	DragonFlyBSD
2010-04-28 13:29:48 +00:00
Lawrence Stewart
7d11e744c1 - Rework the underlying ALQ storage to be a circular buffer, which amongst other
things allows variable length messages to be easily supported.

- Extend KPI with alq_writen() and alq_getn() to support variable length
  messages, which is enabled at ALQ creation time depending on the
  arguments passed to alq_open(). Also add variants of alq_open() and
  alq_post() that accept a flags argument. The KPI is still fully
  backwards compatible and shouldn't require any change in ALQ consumers
  unless they wish to utilise the new features.

- Introduce the ALQ_NOACTIVATE and ALQ_ORDERED flags to allow ALQ consumers
  to have more control over IO scheduling and resource acquisition
  respectively.

- Strengthen invariants checking.

- Document ALQ changes in ALQ(9) man page.

Sponsored by:	FreeBSD Foundation
Reviewed by:	gnn, jeff, rpaulo, rwatson
MFC after:	1 month
2010-04-26 13:48:22 +00:00
Ulrich Spörlein
aa12cea2cc mdoc: order prologue macros consistently by Dd/Dt/Os
Although groff_mdoc(7) gives another impression, this is the ordering
most widely used and also required by mdocml/mandoc.

Reviewed by:	ru
Approved by:	philip, ed (mentors)
2010-04-14 19:08:06 +00:00
Ed Maste
a69a51149e Remove extraneous '>'. 2010-04-07 19:13:31 +00:00
Edward Tomasz Napierala
11b168b80e Fix references. 2010-03-29 17:39:38 +00:00
Konstantin Belousov
40c05da5e0 Correct the type for uio_resid.
MFC after:	3 days
2010-03-21 16:14:19 +00:00
Andriy Gapon
212909cc32 vfs_mount.9: drop cross-reference to a removed manual
MFC after:	3 days
2010-03-19 14:35:38 +00:00