Sascha Wildner [Tue, 27 Apr 2010 00:37:37 +0000 (02:37 +0200)]
Remove ieee80211_ioctl.9 manual page and MLINKS.
Sascha Wildner [Mon, 26 Apr 2010 17:25:37 +0000 (19:25 +0200)]
Bring in FreeBSD's tools/tools/{ath,net80211}.
Sascha Wildner [Mon, 26 Apr 2010 16:37:33 +0000 (18:37 +0200)]
Move wlandebug(8) to usr.sbin (like FreeBSD) and sync.
Sascha Wildner [Mon, 26 Apr 2010 16:26:56 +0000 (18:26 +0200)]
ral.4: Sync with FreeBSD.
Matthew Dillon [Mon, 26 Apr 2010 16:04:21 +0000 (09:04 -0700)]
kernel - make sysent update
* Update for changes in the extattr family of system calls.
Matthew Dillon [Mon, 26 Apr 2010 16:03:04 +0000 (09:03 -0700)]
kernel - Update extattr infrastructure
* Update the extattr infrastructure to match FreeBSD. Numerous arguments
have changed in the system calls and created an issue with libarchive.
Sascha Wildner [Mon, 26 Apr 2010 10:11:12 +0000 (12:11 +0200)]
diskless: Miscellaneous fixes.
* Increase the space reserved for /etc whose size has grown considerably
due to the blacklists in /etc/ssh.
* Remove the check for devfs which has been around long enough.
* Use tmpfs instead of mfs.
* Pass whatever is in md_size (e.g. 10M) directly to mount_tmpfs. For
backwards compatibility, treat number-only values as sectors (i.e.,
multiply by 512 and pass that to mount_tmpfs).
Submitted-by: Rumko <rumcic@gmail.com>
Dragonfly-bug: <http://bugs.dragonflybsd.org/issue1732>
Rumko [Wed, 14 Apr 2010 21:09:48 +0000 (21:09 +0000)]
Wrong variable used.
Alex Hornung [Mon, 26 Apr 2010 08:27:22 +0000 (08:27 +0000)]
dsched.h - don't provide _KERNEL_STRUCTURES stuff
* Don't provide anything for _KERNEL_STRUCTURES, since that would
require sysctl.h to export the sysctl_ctx_list for _KERNEL_STRUCTURES,
too.
Reported-by: luxh, Siju George
Sascha Wildner [Mon, 26 Apr 2010 06:03:50 +0000 (08:03 +0200)]
Really exclude the ndis(4) manual page from the build for now.
Sascha Wildner [Sun, 25 Apr 2010 23:54:22 +0000 (01:54 +0200)]
kern/subr_firmware.c: Oops, forgot a {
Sascha Wildner [Sun, 25 Apr 2010 22:19:26 +0000 (00:19 +0200)]
firmware(9): Check for securelevel > 0 instead of PRIV_ROOT.
The patch is modeled after FreeBSD and fixes a panic when loading a
firmware image.
Submitted-by: Johannes Hofmann <johannes.hofmann@gmx.de>
Dragonfly-bug: <http://bugs.dragonflybsd.org/issue1735>
Alex Hornung [Sun, 25 Apr 2010 21:21:24 +0000 (21:21 +0000)]
dsched - Support policy switching via sysctl
* Add the sysctl dsched.policy tree to show the current policy of disks
/ serial numbers of disks and allow for switching to another available
policy.
Requested-by: Sascha Wildner
Sascha Wildner [Sun, 25 Apr 2010 14:30:58 +0000 (16:30 +0200)]
Move dsched to sys/kern/.
Sascha Wildner [Sun, 25 Apr 2010 12:53:16 +0000 (14:53 +0200)]
Remove firmware(9) from LINT, too.
Sascha Wildner [Sun, 25 Apr 2010 12:50:29 +0000 (14:50 +0200)]
Make firmware(9) standard again instead of optional.
ral(4), which is in GENERIC, uses it and we don't want all people with
GENERIC-derived systems to have to add 'device firmware' to their
configs.
Sascha Wildner [Sun, 25 Apr 2010 12:00:35 +0000 (14:00 +0200)]
ifconfig(8): Raise WARNS to 2 and fix the resulting warnings.
Sascha Wildner [Sun, 25 Apr 2010 11:23:15 +0000 (13:23 +0200)]
firmware(9): GC our old firmware framework in favor of the one from FreeBSD.
* Move the helper module to kern/firmware and name it firmware.ko. Also
make it buildable into the kernel. Add it to GENERIC.
* Adjust mxge(4) to use the new framework, too. Therefore, bring in firmware
modules from FreeBSD.
* Update the firmware(9) manual page.
* Bring in other missing bits and pieces (share/examples/kld/firmware).
* Adjust 'make upgrade'.
Sascha Wildner [Sat, 24 Apr 2010 23:43:22 +0000 (01:43 +0200)]
Remove /usr/include/kadm5 and sort etc/mtree/BSD.include.dist.
Sascha Wildner [Sat, 24 Apr 2010 20:55:20 +0000 (22:55 +0200)]
Sync the wlan*(4) manual pages with FreeBSD for the 802.11 update.
Sascha Wildner [Sat, 24 Apr 2010 14:11:31 +0000 (16:11 +0200)]
Adjust a bit more for the 802.11 upgrade.
Sascha Wildner [Sat, 24 Apr 2010 14:07:35 +0000 (16:07 +0200)]
mptutil.8: Remove trailing whitespace.
Sascha Wildner [Sat, 24 Apr 2010 14:07:09 +0000 (16:07 +0200)]
mount_nfs.8: Write "RFC xxxx" instead of "RFCxxxx".
Sascha Wildner [Sat, 24 Apr 2010 14:06:21 +0000 (16:06 +0200)]
pthread.3: Add missing section.
Sascha Wildner [Sat, 24 Apr 2010 13:17:39 +0000 (15:17 +0200)]
Adjust manual page installation for the 802.11 upgrade.
Sascha Wildner [Sat, 24 Apr 2010 10:32:21 +0000 (12:32 +0200)]
evtr: ktrfmt.tab.h is not supposed to be installed to /usr/include.
Sascha Wildner [Sat, 24 Apr 2010 01:47:23 +0000 (03:47 +0200)]
manpages: Fix some mdoc issues and remove trailing whitespace.
Sascha Wildner [Sat, 24 Apr 2010 01:45:23 +0000 (03:45 +0200)]
xstr(1): Sync with FreeBSD.
Alex Hornung [Fri, 23 Apr 2010 10:17:09 +0000 (10:17 +0000)]
dsched - serno support
* Add support for serno loader tunables, e.g. dsched.policy.WD1293193 =
"fq".
* Incidentally do another name change on the loader tunables from
kern.dsched.* to dsched.* to have the same namespace as the sysctls.
* Add a sysctl dsched.policies showing the currently available policies.
Aggelos Economopoulos [Fri, 23 Apr 2010 14:22:18 +0000 (17:22 +0300)]
evtr: hook into the x86_64 build
Submitted-by: swildner@
Aggelos Economopoulos [Fri, 23 Apr 2010 14:17:28 +0000 (17:17 +0300)]
evtranalyze: clean up warnings
Compilation-on-x86_64-by: swildner@
Aggelos Economopoulos [Fri, 23 Apr 2010 14:12:51 +0000 (17:12 +0300)]
libevtr: portability fixes
Compilation-on-x86_64-by: swildner@
Aggelos Economopoulos [Fri, 23 Apr 2010 14:10:14 +0000 (17:10 +0300)]
libevtr: get rid of unused yyunput() definition
Reminder-by: swildner@
Aggelos Economopoulos [Fri, 23 Apr 2010 12:24:17 +0000 (15:24 +0300)]
libevtr.h: cleanup evtr.h a bit
Prodded-by: alexh@
Aggelos Economopoulos [Fri, 23 Apr 2010 11:37:23 +0000 (14:37 +0300)]
evtranalyze: fix thinko in debug code
Aggelos Economopoulos [Wed, 17 Mar 2010 23:48:54 +0000 (01:48 +0200)]
evtr: initial implementation of a DSL
libevtr:
- abstract out the hash table, convert to using uintptr_t's
internally
- move a bunch of fields and most of the error logic from
evtr to evtr_query
- don't try to resolve format strings to id's and reject
records that don't match early; this needs way more care
now that we might want to interpret the format strings
- start implementation of a minimal Domain Specific Language
- add the ability to filter based on the event type
- lots of fixes all around
evtranalyze:
- catch up w/ API changes in libevtr
- add toy 'stats' command
Alex Hornung [Fri, 23 Apr 2010 06:31:36 +0000 (06:31 +0000)]
dsched - Bump diskctx max size to 512
* Bump the maximum size of the diskctx struct to 512, as 256 is too
small already for dsched_fq on x86_64.
Reported-by: Sascha Wildner
Sascha Wildner [Thu, 22 Apr 2010 22:22:27 +0000 (00:22 +0200)]
Add DSCHED_FQ to LINT.
Sascha Wildner [Thu, 22 Apr 2010 21:08:06 +0000 (23:08 +0200)]
Fix buildworld.
Alex Hornung [Thu, 22 Apr 2010 09:48:50 +0000 (09:48 +0000)]
dsched - expand framework to track threads
* The dsched framework now takes care of tracking threads/procs and
bufs. Most of this code was factored out of dsched_fq.
* fq now uses the new, much simplified API, reducing the lines of code
by about 50%.
* this will also allow for runtime policy switching, even to other
policies that need to track procs/threads. Previously it was only
possible to have one policy that tracked threads.
* Now all policies can be loaded at any time and will still be able to
track all the threads.
* dsched_fq is now a module that can be loaded if required. Once loaded
the policy is registered and ready to use with any disk.
* There is also a kernel option DSCHED_FQ now; otherwise
dsched_fq_load="YES" has to be set in loader.conf to be able to use fq
from boot on.
* Make a dsched sysctl tree.
Suggested-by: Aggelos Economopoulos
Stathis Kamperis [Thu, 22 Apr 2010 17:51:33 +0000 (20:51 +0300)]
dschedctl: G/C some unneeded headers
Stathis Kamperis [Thu, 22 Apr 2010 15:28:10 +0000 (18:28 +0300)]
dschedctl: Better error message on unknown policy
Discussed-with: alexh@, corecode@
Sascha Wildner [Thu, 22 Apr 2010 10:12:57 +0000 (12:12 +0200)]
Adjust 'make upgrade' for the recent 802.11 update.
Sascha Wildner [Thu, 22 Apr 2010 10:03:37 +0000 (12:03 +0200)]
wi(4): Fix -Wold-style-definition.
Sascha Wildner [Thu, 22 Apr 2010 09:58:51 +0000 (11:58 +0200)]
kernel: Add TUNABLE_ULONG too and really fix the acpi warning.
Sascha Wildner [Thu, 22 Apr 2010 09:34:14 +0000 (11:34 +0200)]
acpi(4): Use TUNABLE_LONG to fix a warning and remove a nowerror.
Sascha Wildner [Thu, 22 Apr 2010 09:14:47 +0000 (11:14 +0200)]
kernel: Add TUNABLE_LONG.
Alex Hornung [Thu, 22 Apr 2010 06:38:02 +0000 (06:38 +0000)]
interbench - Port to DragonFly
Alex Hornung [Thu, 22 Apr 2010 05:51:56 +0000 (05:51 +0000)]
interbench - initial import
Sascha Wildner [Thu, 22 Apr 2010 00:29:53 +0000 (02:29 +0200)]
Clean up the options in our kernel configs for the recent 802.11 upgrade.
Stathis Kamperis [Wed, 21 Apr 2010 23:28:16 +0000 (02:28 +0300)]
dschedctl: OCD attack
Stathis Kamperis [Wed, 21 Apr 2010 23:02:06 +0000 (02:02 +0300)]
dschedctl: Don't assume /dev as devfs's mount point
Suggested-by: swildner@
Stathis Kamperis [Wed, 21 Apr 2010 22:41:23 +0000 (01:41 +0300)]
dschedctl: Allow /dev/<disk> as valid syntax
Discussed-with: alexh@
Stathis Kamperis [Wed, 21 Apr 2010 19:31:52 +0000 (22:31 +0300)]
dschedctl: Cosmetic stuff
No functional change intended.
Sascha Wildner [Wed, 21 Apr 2010 22:14:31 +0000 (00:14 +0200)]
mmc(4): Remove ARM specific DRIVER_MODULE().
Alex Hornung [Wed, 21 Apr 2010 19:09:25 +0000 (19:09 +0000)]
fqstats - remove leftover
* remove leftovers from the fqmp refs for buf removal.
Reported-by: Matthew Dillon
Matthew Dillon [Wed, 21 Apr 2010 17:46:44 +0000 (10:46 -0700)]
ieee80211 - Fix detachment panic
* Destroy the clone when ieee80211_vap_destroy() is called, fixing a
panic when kldunloading e.g. if_ath after a wlan clone has been
attached to it.
Submitted-by: Rui Paulo <rpaulo@freebsd.org>
Matthew Dillon [Wed, 21 Apr 2010 17:22:55 +0000 (10:22 -0700)]
build - Fix parallel build race in Makefile
* Fix a misspelled ORDER dependency which led to a mkdir
dependency sometimes being run out of order.
Antonio Huete Jimenez [Wed, 21 Apr 2010 16:05:36 +0000 (18:05 +0200)]
ath - Fix a mismatch in the module options.
This caused a panic with ifconfig in basic operations such
as putting an interface up.
Submitted-by: <rpaulo@FreeBSD.org>
Sascha Wildner [Wed, 21 Apr 2010 14:37:53 +0000 (16:37 +0200)]
Fix buildkernel KERNCONF=SOEKRIS.
Sascha Wildner [Wed, 21 Apr 2010 14:12:10 +0000 (16:12 +0200)]
Sync zoneinfo database with tzdata2010i from elsie.nci.nih.gov
africa: 8.24 -> 8.26
asia: 8.59 -> 8.60
southamerica: 8.43 -> 8.44
* Morocco will have DST in 2010 from May 2 to Aug 22.
* Taiwan had DST in 1979, not in 1980.
* San Luis, Argentina, is on "permanent" DST as of 2010.
Alex Hornung [Wed, 21 Apr 2010 07:24:36 +0000 (07:24 +0000)]
dschedctl.8 - Add man page
Alex Hornung [Wed, 21 Apr 2010 07:22:01 +0000 (07:22 +0000)]
dschedctl - Change arguments, clean up
* Remove the '-d' argument and instead allow an extra argument to '-l'
and '-s'.
* Allow for a change of policy on all disks by not specifying an extra
argument after '-s policy'.
* Introduce two FOREACH macros to simplify the code.
* Add helper function dsched_set_disk_policy().
* Add verbose mode.
Alex Hornung [Tue, 20 Apr 2010 22:31:12 +0000 (22:31 +0000)]
dsched_fq - correct disk busy% calculation
* Previously old_tv was static, causing problems when several disks had
the fq policy enabled, as the start time of the interval was taken
from some other disk.
* Avoid this issue by keeping the information in diskctx, where it
belongs.
Sascha Wildner [Tue, 20 Apr 2010 18:32:44 +0000 (21:32 +0300)]
dsched: Avoid integer overflow.
Multiplication of two 32 bit values can overflow the 32 bit result. Cast
one of the multiplicants to force 64 bit multiplication.
This fixes a lockup due to an infinite loop in the following while().
In-collaboration-with: aggelos
Alex Hornung [Tue, 20 Apr 2010 16:49:58 +0000 (16:49 +0000)]
dsched_fq - remove pointless atomic ops
Reported-by: Aggelos Economopoulos
Alex Hornung [Tue, 20 Apr 2010 16:44:26 +0000 (16:44 +0000)]
dsched_fq - Correct incomplete_tp count
* Previously, the incomplete_tp count was not decreased when an error
occurred. This is now fixed by unconditionally reducing the incomplete
count on the biodone callback.
Reported-by: Aggelos Economopoulos
Sascha Wildner [Tue, 20 Apr 2010 10:33:42 +0000 (13:33 +0300)]
mmcsd(4): Add device statistics.
Alex Hornung [Mon, 19 Apr 2010 18:24:34 +0000 (18:24 +0000)]
dsched, dsched_fq - Major cleanup
SHORT version: major cleanup and rename to useful names
LONG version:
dsched:
* Unify dsched_ops with dsched_policy, remove fallout
* Rename dsched_{create,destroy} -> dsched_disk_{create,destroy}_callback
* Kill .head in dsched_policy
* Kill dead code
dsched_fq:
* Rename fqp -> thread_io/tdio
* Rename fqmp -> thread_ctx/tdctx
* Rename dpriv -> disk_ctx/diskctx
* Several related renames of functions (alloc/ref/unref).
* Remove dead code
* rename tdctx->s_* -> tdctx->interval_*
* comment struct members
* ... and some more changes I probably forgot
Huge-Thanks-To: Aggelos Economopoulos
Alex Hornung [Mon, 19 Apr 2010 16:39:16 +0000 (16:39 +0000)]
dsched - Periph.: call dsched_exit on thread exit
* The previous location of the call to dsched_exit was not right and did
not allow the use of lockmgr.
* We now call dsched_exit before the thread is completely killed and
descheduled as to avoid any problems.
Alex Hornung [Mon, 19 Apr 2010 14:07:25 +0000 (14:07 +0000)]
dsched_fq - move to lockmgr
Matthew Dillon [Mon, 19 Apr 2010 05:36:14 +0000 (22:36 -0700)]
HAMMER VFS - Fix probable corruption case when filesystem becomes nearly full
* The reblocking code was incorrectly assuming the cursor would be pointing
at a valid node element after an unlock/relock sequence, when it could
actually be pointing at the EOF of a node. This case can occur when
the filesystem is nearly full (possibly due to the reblocking operation
itself), when the filesystem is also under load from unrelated
operations.
* This can result in the creation of a corrupted B-Tree leaf node or
data record.
* Corruption can be checked with hammer checkmap and hammer show
(as of this rev):
hammer -f device checkmap
Should output no B-Tree node records or free space mismatches.
You will still get the initial volume summary.
hammer -f device show | egrep '^B' | egrep -v '^BM'
Should output no records.
* Currently the only recourse if corruption is found is to copy off the
filesystem, newfs_hammer, and copy it back.
Full history and snapshots can be retained by using 'hammer -B mirror-read'
to copy off the filesystem and mirror-write to copy it back. However,
pleaes remember you must do this for each PFS individually. Make sure
you have a viable backup before newfsing anything.
Reported-by: Francois Tigeot <ftigeot@wolfpond.org>, Jan Lentfer <Jan.Lentfer@web.de>
Antonio Huete Jimenez [Sun, 18 Apr 2010 22:44:54 +0000 (00:44 +0200)]
ath - Fix module loading.
This registers the modules ath_hal and ath_rate,
so they are properly handled.
Both are now a dependency for if_ath to provide
automatic loading upon if_ath load.
Also 'if_ath_load=YES' on /boot/loader.conf is
fixed with this commit.
Antonio Huete Jimenez [Sun, 18 Apr 2010 22:39:34 +0000 (00:39 +0200)]
x86_64 - Sync wlan options with GENERIC
YONETANI Tomokazu [Sun, 18 Apr 2010 02:59:11 +0000 (11:59 +0900)]
ips - Mark queue_lock as LK_CANRECURSE
Originally queue_lock was an LWKT reader-writer locks, which permitted
multiple locks by the same thread, and in fact there are few code paths
where such multiple locking is used. Doing the similar thing with lockmgr
lock without either LK_NOWAIT or LK_CANRECURSE triggers a panic.
Matthew Dillon [Sat, 17 Apr 2010 18:16:31 +0000 (11:16 -0700)]
Merge branch 'master' of ssh://crater.dragonflybsd.org/repository/git/dragonfly
Matthew Dillon [Sat, 17 Apr 2010 18:12:02 +0000 (11:12 -0700)]
HAMMER VFS - Fix assertion panic related to record flush state
* This assertion can occur under certain circumstances if a rename
operation moves a file or directory to a parent directory, due to
a circular loop in the dependency chain.
* Fix the problem by allowing the case.
Reported-by: Sascha Wildner, Alex Hornung, Venkatesh Srinivas, others
Alexander Polakov [Sat, 17 Apr 2010 16:31:49 +0000 (20:31 +0400)]
Fix LINT kernel build.
Alexander Polakov [Fri, 16 Apr 2010 20:57:50 +0000 (00:57 +0400)]
Connect mptutil(8) to the build.
Alexander Polakov [Fri, 16 Apr 2010 20:54:03 +0000 (00:54 +0400)]
mptutil(8): fix build on DragonFly
* fix header paths
* define SPECNAMELEN
* use scsci_read_capacity_data_16 for scsi_read_capacity_data_long
Alexander Polakov [Fri, 16 Apr 2010 20:41:22 +0000 (00:41 +0400)]
Import mptutil(8) from FreeBSD unmodified.
Alexander Polakov [Fri, 2 Apr 2010 20:23:00 +0000 (00:23 +0400)]
sound: implement OSS_GETVERSION.
It's required by some software, emulators/qemu to mention.
Obtained-from: FreeBSD
Alex Hornung [Sat, 17 Apr 2010 09:51:27 +0000 (09:51 +0000)]
dsched_fq - Overhaul locking
* use lockmgr lock for FQP lock, as some strategy ops can sleep while
acquiring another lock (CAM SIM lock, for example).
* reduce overall locking when it isn't really required, mainly during
deallocation (losing last ref) of objects. The locking is only
explicitly required to protect the internal TAILQs.
* NOTE: this is an _attempt_ to fix some unidentified deadlocks that have
been reported occasionally. While it shouldn't happen, be aware that
this might explode.
Reported-by: Antonio Huete, Jan Lentfer
Sascha Wildner [Sat, 17 Apr 2010 10:43:24 +0000 (13:43 +0300)]
Fix ACPI global lock acquisition in x86_64.
This fixes a number of grave issues on my Sony VAIO VGN-Z51XG, such as
messages about not being able to acquire the global lock, freezes when
ACPI was fully enabled and a panic at shutdown.
BTW, gcc had been warning us about it for a long time. :)
In-collaboration-with: aggelos
Antonio Huete Jimenez [Fri, 16 Apr 2010 23:16:31 +0000 (16:16 -0700)]
dsched - Correct some length modifiers to fix buildkernel for x86_64.
Sascha Wildner [Fri, 16 Apr 2010 14:26:21 +0000 (16:26 +0200)]
Add more __printflike()'s and fix resulting fallout.
Sascha Wildner [Fri, 16 Apr 2010 14:26:07 +0000 (16:26 +0200)]
Move memmove(), strcasecmp() and strncasecmp() in !defined(KERNEL_VIRTUAL).
This fixes the VKERNEL build.
YONETANI Tomokazu [Fri, 16 Apr 2010 12:02:47 +0000 (21:02 +0900)]
ifconfig(1) - fix autoloading of kernel module
Sascha Wildner [Fri, 16 Apr 2010 12:21:08 +0000 (14:21 +0200)]
mmc(4): Remove two unneeded .PATH lines in the Makefiles.
Sascha Wildner [Fri, 16 Apr 2010 08:37:33 +0000 (10:37 +0200)]
Add a condvar(9) manual page (based on FreeBSD's).
Submitted-by: Venkatesh Srinivas <me@endeavour.zapto.org>
Sascha Wildner [Fri, 16 Apr 2010 07:57:29 +0000 (09:57 +0200)]
Bring in FreeBSD's MMC (MultiMediaCard) stack.
mmc(4) - The MMC bus
sdhci(4) - Host controller driver
mmcsd(4) - Memory card disk device driver
SD, SDHC and MMC cards should be supported (tested with an SDHC card).
Sascha Wildner [Fri, 16 Apr 2010 07:07:30 +0000 (09:07 +0200)]
<sys/kthread.h>: Add some __printflike()'s.
This guards against wrong conversion from FreeBSD's kthread_create()
which takes two additional parameters.
Fix the resulting fallout in kern_sensors.c
Sascha Wildner [Fri, 16 Apr 2010 06:21:51 +0000 (08:21 +0200)]
dsched: Fix x86_64 buildkernel.
Matthew Dillon [Fri, 16 Apr 2010 03:41:18 +0000 (20:41 -0700)]
HAMMER Util - Add 'checkmap', adjust hammer show
* Add a checkmap function which scans the B-Tree, collects byte usage,
and checks it against the blockmap. This is still experimental.
* Adjust hammer show to flag zone mismatches instead of asserting.
Alex Hornung [Thu, 15 Apr 2010 22:20:03 +0000 (22:20 +0000)]
dsched - Change loader policy tunables (again)
* Change them to follow the standard, dotted, format. Now the three
types are:
- kern.dsched.policy.da0
- kern.dsched.policy.da
- kern.dsched.policy.default
Suggested-by: Sascha Wildner
Alex Hornung [Wed, 14 Apr 2010 18:11:26 +0000 (18:11 +0000)]
dsched_fq - bump minor version
Alex Hornung [Wed, 14 Apr 2010 18:05:52 +0000 (18:05 +0000)]
dsched_fq - Remove stale comment
* Remove a useless comment
Alex Hornung [Tue, 13 Apr 2010 18:49:24 +0000 (18:49 +0000)]
dsched - change loader tunables
* Change loader tunables to dsched_pol avoiding the '*' character as it
isn't supported by the loader.
Reported-by: Petr Janda
Alex Hornung [Tue, 13 Apr 2010 18:47:51 +0000 (18:47 +0000)]
dsched_fq - Avoid a rare div by 0
* Avoid a rare division by 0 when calculating how busy the disk has
been. It seems that sometimes the total disk time is 0, so when this
happens, just assume that at least 1 us has passed.
Alex Hornung [Tue, 13 Apr 2010 07:15:10 +0000 (07:15 +0000)]
dsched_fq - Refactor fqp allocation/destruction
* Accept another argument for fqp allocation which is the corresponding
fqmp. This is internally stored for proper self-removal out of the
fqmp list on destruction.
* This parameter is also used to link the fqp into the fqmp list
automatically on creation, avoiding code duplication and deadlocking.
* Changed the destruction refcount to -0x400 instead of -3 to make
tracking of these cases simpler and not confuse them with bad
refcounting.
* NOTE: this also fixes the longstanding issue of an eventual panic
after a number of policy switches to/from fq.
Reported-by: Antonio Huete (tuxillo@)