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Paul Jackson b39c4fab25 [PATCH] cpusets+hotplug+preepmt broken 
This patch removes the entwining of cpusets and hotplug code in the "No
more Mr.  Nice Guy" case of sched.c move_task_off_dead_cpu().

Since the hotplug code is holding a spinlock at this point, we cannot take
the cpuset semaphore, cpuset_sem, as would seem to be required either to
update the tasks cpuset, or to scan up the nested cpuset chain, looking for
the nearest cpuset ancestor that still has some CPUs that are online.  So
we just punt and blast the tasks cpus_allowed with all bits allowed.

This reverts these lines of code to what they were before the cpuset patch.
 And it updates the cpuset Doc file, to match.

The one known alternative to this that seems to work came from Dinakar
Guniguntala, and required the hotplug code to take the cpuset_sem semaphore
much earlier in its processing.  So far as we know, the increased locking
entanglement between cpusets and hot plug of this alternative approach is
not worth doing in this case.

Signed-off-by: Paul Jackson <pj@sgi.com>
Acked-by: Nathan Lynch <ntl@pobox.com>
Acked-by: Dinakar Guniguntala <dino@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 		2005-05-20 15:48:19 -07:00
..
DocBook [PATCH] docbook: Tell users to install xmlto, not stylesheets 2005-05-01 08:59:28 -07:00
RCU [PATCH] Update RCU documentation 2005-05-01 08:59:05 -07:00
aoe [PATCH] aoe: update the documentation to mention aoetools 2005-05-03 23:34:54 -07:00
arm Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
block Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cdrom Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cpu-freq Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cris Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
crypto Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
device-mapper Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
driver-model [PATCH] pm_message_t: more fixes in common and i386 2005-04-16 15:25:24 -07:00
dvb [PATCH] dvb: bt8xx: updated documentation 2005-05-17 07:59:34 -07:00
early-userspace Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fb Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
filesystems [PATCH] Driver Core: remove driver model detach_state 2005-05-17 14:54:55 -07:00
firmware_class Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fujitsu/frv Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
i2c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
i2o Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
i386 [PATCH] Increase number of e820 entries hard limit from 32 to 128 2005-05-01 08:58:51 -07:00
ia64 Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
infiniband [PATCH] IPoIB: document conversion to debugfs 2005-04-16 15:26:07 -07:00
input Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ioctl Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
isdn Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kbuild Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
m68k Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mips Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
networking [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
parisc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
power [PATCH] Driver Core: remove driver model detach_state 2005-05-17 14:54:55 -07:00
powerpc [PATCH] Driver Core: remove driver model detach_state 2005-05-17 14:54:55 -07:00
s390 [PATCH] s390: cio documentation 2005-05-01 08:59:00 -07:00
scsi lpfc: add Emulex FC driver version 8.0.28 2005-04-18 13:50:53 -05:00
serial Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sh Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sound Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sparc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sysctl Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
telephony Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
uml Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
usb Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
video4linux Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vm Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
w1 Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
watchdog Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
x86_64 Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
00-INDEX [PATCH] remove BK documentation 2005-05-05 16:36:42 -07:00
BUG-HUNTING Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Changes [PATCH] DocBook: Use xmlto to process the DocBook files. 2005-05-01 08:59:27 -07:00
CodingStyle Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
DMA-API.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
DMA-mapping.txt [PATCH] remove old scsi data direction macros 2005-04-18 13:49:58 -05:00
IO-mapping.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
IPMI.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
IRQ-affinity.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
MSI-HOWTO.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ManagementStyle Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
PCIEBUS-HOWTO.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
README.DAC960 Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
README.cycladesZ Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
SAK.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
SecurityBugs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
SubmittingDrivers Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
SubmittingPatches Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
VGA-softcursor.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atomic_ops.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
basic_profiling.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binfmt_misc.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cachetlb.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cciss.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cli-sti-removal.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
computone.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cpqarray.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cpusets.txt [PATCH] cpusets+hotplug+preepmt broken 2005-05-20 15:48:19 -07:00
debugging-modules.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
devices.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
digiepca.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dnotify.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dontdiff [PATCH] Update dontdiff 2005-05-05 16:36:42 -07:00
eisa.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
exception.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
feature-removal-schedule.txt [PATCH] ieee1394: feature removal notices 2005-05-17 07:59:22 -07:00
floppy.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ftape.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hayes-esp.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
highuid.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hpet.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hw_random.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ibm-acpi.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ide.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
initrd.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
io_ordering.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ioctl-number.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
iostats.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
isapnp.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
java.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kernel-doc-nano-HOWTO.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kernel-docs.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kernel-parameters.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
keys.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kobject.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kref.txt [PATCH] kref: add link to original documentation to the kref documentation. 2005-04-18 21:57:30 -07:00
laptop-mode.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ldm.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
locks.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
logo.gif Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
logo.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
magic-number.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mandatory.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mca.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
md.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
memory.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mono.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
moxa-smartio Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mtrr.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nbd.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nfsroot.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nmi_watchdog.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nommu-mmap.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
numastat.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
oops-tracing.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
paride.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
parport-lowlevel.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
parport.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci.txt [PATCH] PCI: update PCI documentation for pci_get_slot() depreciation 2005-05-03 23:45:14 -07:00
pm.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pnp.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
preempt-locking.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
prio_tree.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ramdisk.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
riscom8.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rocket.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rpc-cache.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rtc.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sched-coding.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sched-design.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sched-domains.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sched-stats.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
seclvl.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
serial-console.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sgi-visws.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
smart-config.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
smp.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sonypi.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sparse.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
specialix.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
spinlocks.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
stable_api_nonsense.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
stallion.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
svga.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sx.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sysrq.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
time_interpolators.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tipar.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tty.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unicode.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
voyager.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xterm-linux.xpm Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
zorro.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00

README.cycladesZ 

The Cyclades-Z must have firmware loaded onto the card before it will
operate.  This operation should be performed during system startup,

The firmware, loader program and the latest device driver code are
available from Cyclades at
    ftp://ftp.cyclades.com/pub/cyclades/cyclades-z/linux/