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linux-2.6/Documentation
David Howells 670bd95e04 [PATCH] Further alterations for memory barrier document
From: David Howells <dhowells@redhat.com>

Apply some alterations to the memory barrier document that I worked out
with Paul McKenney of IBM, plus some of the alterations suggested by Alan
Stern.

The following changes were made:

 (*) One of the examples given for what can happen with overlapping memory
     barriers was wrong.

 (*) The description of general memory barriers said that a general barrier is
     a combination of a read barrier and a write barrier.  This isn't entirely
     true: it implies both, but is more than a combination of both.

 (*) The first example in the "SMP Barrier Pairing" section was wrong: the
     loads around the read barrier need to touch the memory locations in the
     opposite order to the stores around the write barrier.

 (*) Added a note to make explicit that the loads should be in reverse order to
     the stores.

 (*) Adjusted the diagrams in the "Examples Of Memory Barrier Sequences"
     section to make them clearer.  Added a couple of diagrams to make it more
     clear as to how it could go wrong without the barrier.

 (*) Added a section on memory speculation.

 (*) Dropped any references to memory allocation routines doing memory
     barriers.  They may do sometimes, but it can't be relied on.  This may be
     worthy of further documentation later.

 (*) Made the fact that a LOCK followed by an UNLOCK should not be considered a
     full memory barrier more explicit and gave an example.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-10 11:02:05 -07:00
..
DocBook [PATCH] move ->eh_strategy_handler to the transport class 2006-04-10 14:15:47 -04:00
RCU [PATCH] for_each_possible_cpu: documentaion 2006-03-28 09:16:05 -08:00
aoe [PATCH] aoe [2/8]: support dynamic resizing of AoE devices 2006-03-23 22:01:55 -08:00
arm [ARM] 3416/1: Update LART site URL 2006-03-27 15:32:30 +01:00
block [PATCH] Document online io scheduler switching 2006-04-20 13:04:36 +02:00
cdrom [PATCH] remove verify_area(): remove or edit references to verify_area in Documentation/ 2005-09-07 16:57:35 -07:00
connector [CONNECTOR]: Use netlink_has_listeners() to avoind unnecessary allocations. 2006-03-20 22:21:40 -08:00
cpu-freq [CPUFREQ] Update LART site URL 2006-04-03 07:25:54 -05:00
cris
crypto
device-mapper
driver-model [PATCH] Clean up Documentation/driver-model/overview.txt 2006-02-03 08:31:59 -08:00
drivers/edac [PATCH] EDAC: documentation spelling fixes 2006-03-26 08:57:08 -08:00
dvb V4L/DVB (3832): Get_dvb_firmware: download nxt2002 firmware from new driver location 2006-05-12 19:55:17 -03:00
early-userspace
fb [PATCH] Update cyblafb driver 2006-01-09 10:00:36 -08:00
filesystems [doc] add paragraph about 'fs' subsystem to sysfs.txt 2006-04-26 10:49:26 +02:00
firmware_class [PATCH] drivers/base/firmware_class.c: cleanups 2006-05-21 12:59:19 -07:00
fujitsu/frv Documentation: Make fujitsu/frv/kernel-ABI.txt 80 columns wide 2006-04-01 01:38:15 +02:00
hwmon [PATCH] w83781d: Don't reset the chip by default 2006-03-23 14:21:53 -08:00
i2c [PATCH] i2c-parport: Make type parameter mandatory 2006-04-14 11:18:34 -07:00
i2o spelling: s/retreive/retrieve/ 2006-01-10 00:10:13 +01:00
i386
ia64
infiniband
input Input: gamecon - add SNES mouse support 2006-04-02 00:10:05 -05:00
ioctl spelling: s/appropiate/appropriate/ 2006-01-15 02:00:17 +01:00
isdn [PATCH] isdn4linux: Siemens Gigaset drivers: add README 2006-04-11 06:18:50 -07:00
kbuild kbuild: fix garbled text in modules.txt 2006-04-04 15:28:21 +02:00
kdump [PATCH] kdump: add dmesg gdbmacro into document 2006-01-11 18:42:10 -08:00
m68k [PATCH] Typo fixes 2006-03-28 09:16:08 -08:00
mips [MIPS] Update docs to reflect the latest status of the Alchemy IDE driver. 2006-02-14 19:13:23 +00:00
networking [NET]: Add missing operstates documentation. 2006-05-09 15:15:35 -07:00
parisc
pcmcia [PATCH] pcmcia: convert remaining users of pcmcia_release_io and _irq 2006-03-31 17:15:51 +02:00
power [PATCH] suspend: Documentation update for IBM Thinkpad X30 2006-04-28 08:33:49 -07:00
powerpc [PATCH] powerpc: Kill _machine and hard-coded platform numbers 2006-03-28 23:15:54 +11:00
s390 [PATCH] s390: cio documentation update 2006-03-24 07:33:15 -08:00
scsi [SCSI] megaraid_{mm,mbox}: fix a bug in reset handler 2006-04-27 14:08:53 -05:00
serial [SERIAL] Update parity handling documentation 2006-06-02 17:47:26 +01:00
sh
sound [ALSA] adding __devinitdata to pci_device_id 2006-04-27 21:10:38 +02:00
sparc
spi [PATCH] SPI: busnum == 0 needs to work 2006-05-16 14:33:57 -07:00
sysctl [PATCH] suspend-to-ram: allow video options to be set at runtime 2006-02-20 20:00:10 -08:00
telephony
uml
usb V4L/DVB (3653h): Move usb v4l docs into Documentation/video4linux 2006-04-02 04:55:56 -03:00
video4linux V4L/DVB (3653h): Move usb v4l docs into Documentation/video4linux 2006-04-02 04:55:56 -03:00
vm [PATCH] Doc: vm/hugetlbpage update-2 2006-04-19 09:13:52 -07:00
w1 [PATCH] W1: Add the DS2482 I2C-to-w1 bridge driver. 2006-03-23 17:28:12 -08:00
watchdog [WATCHDOG] Documentation/watchdog/watchdog-api.txt - fix watchdog daemon 2006-05-15 21:37:46 +02:00
x86_64 [PATCH] x86_64: Reserve SRAT hotadd memory on x86-64 2006-04-09 11:53:16 -07:00
00-INDEX
BUG-HUNTING Documentation: Update to BUG-HUNTING 2006-03-22 00:37:42 +01:00
Changes Documentation/Changes: remove outdated translation references 2006-03-20 20:28:13 +01:00
CodingStyle [PATCH] CodingStyle correction 2006-01-10 08:01:52 -08:00
DMA-API.txt [PATCH] dma doc updates 2006-04-14 12:25:26 -07:00
DMA-ISA-LPC.txt
DMA-mapping.txt [PATCH] dma doc updates 2006-04-14 12:25:26 -07:00
HOWTO [PATCH] Added URI of "linux kernel development process" 2006-04-27 13:08:57 -07:00
IO-mapping.txt
IPMI.txt
IRQ-affinity.txt
MSI-HOWTO.txt
ManagementStyle
PCIEBUS-HOWTO.txt
README.DAC960
README.cycladesZ
SAK.txt
SecurityBugs
SubmittingDrivers [PATCH] docs: update some updated code docs 2006-01-14 10:39:53 -08:00
SubmittingPatches [PATCH] docs: update some updated code docs 2006-01-14 10:39:53 -08:00
VGA-softcursor.txt
acpi-hotkey.txt Fix minor documentation typo 2006-04-01 01:49:22 +02:00
applying-patches.txt [PATCH] Docs update: typos, corrections and additions to applying-patches.txt 2006-01-10 08:01:54 -08:00
atomic_ops.txt
basic_profiling.txt
binfmt_misc.txt
cachetlb.txt [PATCH] Add flush_kernel_dcache_page() API 2006-03-26 08:56:53 -08:00
cciss.txt
cli-sti-removal.txt
computone.txt
cpqarray.txt
cpu-hotplug.txt [PATCH] for_each_possible_cpu: documentaion 2006-03-28 09:16:05 -08:00
cpusets.txt [PATCH] cpuset memory spread basic implementation 2006-03-24 07:33:22 -08:00
cputopology.txt [PATCH] trivial typos in Documentation/cputopology.txt 2006-03-28 09:16:08 -08:00
dcdbas.txt
debugging-modules.txt
dell_rbu.txt
devices.txt [PATCH] devices.txt: remove pktcdvd entry 2006-05-15 11:20:58 -07:00
digiepca.txt
dnotify.txt
dontdiff
eisa.txt
exception.txt
feature-removal-schedule.txt [PATCH] sbp2: consolidate workarounds 2006-05-17 21:32:21 -07:00
floppy.txt
ftape.txt
hayes-esp.txt
highuid.txt
hpet.txt Documentation/hpet.txt typo 2006-01-15 02:09:54 +01:00
hrtimers.txt [PATCH] hrtimer: hrtimer documentation 2006-01-10 08:01:37 -08:00
hw_random.txt
ibm-acpi.txt
ide.txt
initrd.txt
io_ordering.txt
ioctl-number.txt [PATCH] arch/i386/kernel/microcode.c: remove the obsolete microcode_ioctl 2006-03-28 09:16:06 -08:00
iostats.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt [PATCH] Doc/kernel-doc: add more usage info 2006-02-01 08:53:27 -08:00
kernel-docs.txt
kernel-parameters.txt Doc/kernel-parameters.txt: slightly reword sentence about restrictions 2006-04-01 01:44:30 +02:00
keys-request-key.txt [PATCH] keys: Permit running process to instantiate keys 2006-01-08 20:13:53 -08:00
keys.txt [PATCH] keys: Permit running process to instantiate keys 2006-01-08 20:13:53 -08:00
kobject.txt
kprobes.txt [PATCH] kprobes: Update Documentation/kprobes.txt 2006-02-14 16:09:34 -08:00
kref.txt
laptop-mode.txt [PATCH] docs: laptop-mode.txt source file build 2006-04-11 06:18:44 -07:00
ldm.txt
leds-class.txt [PATCH] LED: class documentation 2006-03-31 12:18:56 -08:00
locks.txt [PATCH] Docs update: remove obsolete patch from locks.txt 2006-01-10 08:01:54 -08:00
logo.gif
logo.txt
magic-number.txt
mandatory.txt
mca.txt
md.txt
memory-barriers.txt [PATCH] Further alterations for memory barrier document 2006-06-10 11:02:05 -07:00
memory.txt
mono.txt
moxa-smartio
mtrr.txt [PATCH] Doc: fix mtrr userspace programs to build cleanly 2006-04-11 06:18:44 -07:00
mutex-design.txt [PATCH] mutex subsystem, documentation 2006-01-09 15:59:20 -08:00
nbd.txt
nfsroot.txt [PATCH] Updated Documentation/nfsroot.txt 2006-03-24 07:33:27 -08:00
nmi_watchdog.txt
nommu-mmap.txt
numastat.txt
oops-tracing.txt [PATCH] doc: refer to kdump in oops-tracing.txt 2006-01-11 18:42:10 -08:00
paride.txt
parport-lowlevel.txt [PATCH] parport: fix documentation 2006-02-03 08:32:06 -08:00
parport.txt
pci-error-recovery.txt [PATCH] Documentation: Updated PCI Error Recovery 2006-02-03 08:32:00 -08:00
pci.txt [PATCH] PCI: Documentation: no more device ids 2006-04-27 13:00:51 -07:00
pm.txt
pnp.txt [PATCH] pnp: PNP: adjust pnp_register_driver signature 2006-03-27 08:44:53 -08:00
preempt-locking.txt
prio_tree.txt
ramdisk.txt
riscom8.txt
robust-futex-ABI.txt [PATCH] lightweight robust futexes updates 2006-03-27 08:44:49 -08:00
robust-futexes.txt [PATCH] lightweight robust futexes updates 2006-03-27 08:44:49 -08:00
rocket.txt
rpc-cache.txt [PATCH] knfsd: Update rpc-cache.txt to match recent changes 2006-03-27 08:44:43 -08:00
rtc.txt
sched-arch.txt
sched-coding.txt
sched-design.txt
sched-domains.txt
sched-stats.txt
seclvl.txt
serial-console.txt [PATCH] doc: more serial-console info 2006-03-25 08:23:00 -08:00
sgi-ioc4.txt
sgi-visws.txt
sharedsubtree.txt
smart-config.txt kbuild: remove checkconfig.pl 2006-02-19 09:51:22 +01:00
smp.txt
sonypi.txt
sparse.txt
specialix.txt
spinlocks.txt fix rwlock usage example 2006-03-22 00:19:39 +01:00
stable_api_nonsense.txt
stable_kernel_rules.txt [PATCH] Docs update: small fixes to stable_kernel_rules.txt 2006-01-10 08:01:55 -08:00
stallion.txt
svga.txt
sx.txt
sysrq.txt
time_interpolators.txt
tipar.txt
tty.txt
unicode.txt
unshare.txt [PATCH] unshare system call -v5: Documentation file 2006-02-07 16:12:34 -08:00
voyager.txt
xterm-linux.xpm
zorro.txt

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/