Gary Hade c04fc586c1 mm: show node to memory section relationship with symlinks in sysfs ... Show node to memory section relationship with symlinks in sysfs Add /sys/devices/system/node/nodeX/memoryY symlinks for all the memory sections located on nodeX. For example: /sys/devices/system/node/node1/memory135 -> ../../memory/memory135 indicates that memory section 135 resides on node1. Also revises documentation to cover this change as well as updating Documentation/ABI/testing/sysfs-devices-memory to include descriptions of memory hotremove files 'phys_device', 'phys_index', and 'state' that were previously not described there. In addition to it always being a good policy to provide users with the maximum possible amount of physical location information for resources that can be hot-added and/or hot-removed, the following are some (but likely not all) of the user benefits provided by this change. Immediate: - Provides information needed to determine the specific node on which a defective DIMM is located. This will reduce system downtime when the node or defective DIMM is swapped out. - Prevents unintended onlining of a memory section that was previously offlined due to a defective DIMM. This could happen during node hot-add when the user or node hot-add assist script onlines _all_ offlined sections due to user or script inability to identify the specific memory sections located on the hot-added node. The consequences of reintroducing the defective memory could be ugly. - Provides information needed to vary the amount and distribution of memory on specific nodes for testing or debugging purposes. Future: - Will provide information needed to identify the memory sections that need to be offlined prior to physical removal of a specific node. Symlink creation during boot was tested on 2-node x86_64, 2-node ppc64, and 2-node ia64 systems. Symlink creation during physical memory hot-add tested on a 2-node x86_64 system. Signed-off-by: Gary Hade <garyhade@us.ibm.com> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-01-06 15:59:00 -08:00
..
ABI	mm: show node to memory section relationship with symlinks in sysfs	2009-01-06 15:59:00 -08:00
accounting	.gitignore updates	2008-10-30 11:38:45 -07:00
acpi	ACPI: update debug parameter documentation	2008-11-07 21:45:29 -05:00
aoe
arm	Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel	2008-12-29 18:08:11 +00:00
auxdisplay	.gitignore updates	2008-10-30 11:38:45 -07:00
blackfin	Blackfin arch: add supporting for kgdb	2008-10-13 14:07:19 +08:00
block	Documentation: remove reference to ll_rw_blk.c and moved drivers/block/elevator.c	2008-12-29 08:28:43 +01:00
blockdev	Create/use more directory structure in the Documentation/ tree.	2008-11-14 17:28:53 +00:00
cdrom	doc/cdrom: Trvial documentation error, file not present	2008-10-10 08:22:44 +02:00
cgroups	freezer_cg: disable writing freezer.state of root cgroup	2008-11-12 17:17:16 -08:00
connector	.gitignore updates	2008-10-30 11:38:45 -07:00
console
controllers	sched: add hierarchical accounting to cpu accounting controller	2008-11-11 12:13:28 +01:00
cpu-freq	doc: Update sh cpufreq documentation.	2008-12-22 18:44:47 +09:00
cpuidle
cris	fix random typos	2008-10-16 11:21:30 -07:00
crypto
development-process	Add the development process document	2008-10-16 11:51:30 -06:00
device-mapper
DocBook	WAN: syncppp.c is no longer used by any kernel code. Remove it.	2008-11-22 02:49:48 +01:00
driver-model
dvb	V4L/DVB (9812): [PATCH] short help for Technisat cards to select the right configuration	2008-12-30 09:38:35 -02:00
early-userspace
fault-injection
fb	[ARM] pxafb: add support for overlay1 and overlay2 as framebuffer devices	2008-12-29 18:00:04 +08:00
filesystems	ocfs2: add mount option and Kconfig option for acl	2009-01-05 08:36:52 -08:00
firmware_class
frv
hwmon	adt7462: new hwmon driver	2008-11-12 17:17:17 -08:00
i2c	i2c: The i2c mailing list is moving	2008-10-30 15:55:47 +01:00
i2o
ia64	.gitignore updates	2008-10-30 11:38:45 -07:00
ide
infiniband
input	Input: fix the example of an input device driver	2008-11-11 11:41:49 -05:00
ioctl	UBI: document UBI ioctls	2008-12-09 15:59:07 +02:00
isdn	Rationalise Randy's address a bit	2008-10-30 11:38:47 -07:00
ja_JP	HOWTO: Sync patch for jp_JP/HOWTO	2008-10-29 15:03:50 -07:00
kbuild	kbuild: document environment variables	2009-01-02 20:43:25 +01:00
kdump	powerpc: Support for relocatable kdump kernel	2008-10-22 15:01:22 +11:00
ko_KR
laptops	Merge branch 'linus' into test	2008-10-23 00:11:07 -04:00
lguest	lguest: move the initial guest page table creation code to the host	2008-12-30 09:26:11 +10:30
m68k
make
mips
mn10300
mtd
namespaces
netlabel
networking	dccp ccid-2: Phase out the use of boolean Ack Vector sysctl	2008-12-08 01:19:06 -08:00
parisc
PCI	Create/use more directory structure in the Documentation/ tree.	2008-11-14 17:28:53 +00:00
pcmcia	.gitignore updates	2008-10-30 11:38:45 -07:00
power	pm: document use of RTC in pm_trace	2008-10-16 11:21:29 -07:00
powerpc	gianfar: Convert gianfar to an of_platform_driver	2008-12-16 15:29:15 -08:00
prctl
RCU	Merge branch 'core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-12-30 16:10:19 -08:00
s390	[S390] cio: Exorcise cio_msg= from documentation.	2008-10-10 21:33:49 +02:00
scheduler	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-12-28 12:27:58 -08:00
scsi	[SCSI] cxgb3i: Add cxgb3i iSCSI driver.	2008-12-30 10:45:33 -06:00
serial	Create/use more directory structure in the Documentation/ tree.	2008-11-14 17:28:53 +00:00
sh	sh: Kill off remaining CONFIG_SH_KGDB bits.	2008-12-22 18:44:05 +09:00
sound	Merge branch 'topic/oxygen' into to-push	2008-12-25 11:40:30 +01:00
sparc
spi	spi documentation: use __initdata on struct	2008-12-01 19:55:24 -08:00
sysctl	Document kernel taint flags properly	2008-10-29 15:03:49 -07:00
telephony
thermal
timers
tracers	tracing, doc: update mmiotrace documentation	2008-11-23 20:33:24 +01:00
uml
usb	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream	2009-01-02 13:17:13 +00:00
video4linux	V4L/DVB (10157): Add USB ID for the Sil4701 radio from DealExtreme	2009-01-02 17:13:56 -02:00
vm	.gitignore updates	2008-10-30 11:38:45 -07:00
w1	hdq: documentation for OMAP HDQ	2008-11-12 17:17:18 -08:00
watchdog	.gitignore updates	2008-10-30 11:38:45 -07:00
x86	Merge branches 'x86/apic', 'x86/cleanups', 'x86/cpufeature', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/detect-hyper', 'x86/doc', 'x86/dumpstack', 'x86/early-printk', 'x86/fpu', 'x86/idle', 'x86/io', 'x86/memory-corruption-check', 'x86/microcode', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/pat2', 'x86/pci-ioapic-boot-irq-quirks', 'x86/ptrace', 'x86/quirks', 'x86/reboot', 'x86/setup-memory', 'x86/signal', 'x86/sparse-fixes', 'x86/time', 'x86/uv' and 'x86/xen' into x86/core	2008-12-23 16:27:23 +01:00
zh_CN
00-INDEX	Merge branch 'doc-subdirs' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs	2008-11-15 11:51:03 -08:00
applying-patches.txt
atomic_ops.txt
basic_profiling.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
BUG-HUNTING
c2port.txt	Add c2 port support	2008-11-12 17:17:18 -08:00
cachetlb.txt
Changes
CodingStyle
cpu-hotplug.txt	x86: use possible_cpus=NUM to extend the possible cpus allowed	2008-12-18 12:08:05 +01:00
cpu-load.txt
cpusets.txt	container freezer: document the cgroup freezer subsystem.	2008-10-20 08:52:34 -07:00
cputopology.txt	sysfs: add documentation to cputopology.txt for system cpumasks	2008-12-19 17:47:12 +10:30
credentials.txt	CRED: Documentation	2008-11-14 10:39:26 +11:00
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt	USB: add USB test and measurement class driver	2008-10-17 14:40:51 -07:00
DMA-API.txt	DMA-API.txt: fix description of pci_map_sg/dma_map_sg scatterlists handling	2008-12-01 19:55:24 -08:00
DMA-attributes.txt
DMA-ISA-LPC.txt
DMA-mapping.txt
dontdiff	dontdiff: more updates to be closer to gitignore	2008-10-16 11:21:31 -07:00
edac.txt
eisa.txt
email-clients.txt	Documentation/email-clients.txt: add some info about gmail	2008-11-06 15:41:19 -08:00
exception.txt
feature-removal-schedule.txt	remove ide-scsi	2009-01-02 16:12:51 +01:00
ftrace.txt	ftrace: improve documentation	2008-11-28 13:15:14 +01:00
gpio.txt	gpiolib: request/free hooks	2008-10-16 11:21:40 -07:00
highuid.txt
HOWTO	Remove Andrew Morton's http://www.zip.com.au/~akpm/	2008-10-16 11:21:32 -07:00
hw_random.txt
ics932s401	ics932s401: new clock generator chip driver	2008-11-12 17:17:18 -08:00
initrd.txt
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt	io mapping: improve documentation	2008-11-03 18:21:44 +01:00
IO-mapping.txt
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt	Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6	2008-12-28 12:33:21 -08:00
keys-request-key.txt
keys.txt
kobject.txt	kobject: Fix kobject_rename and !CONFIG_SYSFS	2008-10-16 09:24:52 -07:00
kprobes.txt
kref.txt
ldm.txt
leds-class.txt
local_ops.txt	documentation: local_ops fix on_each_cpu	2008-12-01 13:51:26 +01:00
lockdep-design.txt
lockstat.txt	lockstat: contend with points	2008-10-20 15:43:10 +02:00
logo.gif
logo.txt
magic-number.txt
Makefile
ManagementStyle	docs: fix ManagementStyle book name	2008-10-30 11:38:46 -07:00
markers.txt	markers: comment marker_synchronize_unregister() on data dependency	2008-11-28 16:47:41 +01:00
mca.txt
md.txt
memory-barriers.txt
memory-hotplug.txt	mm: show node to memory section relationship with symlinks in sysfs	2009-01-06 15:59:00 -08:00
memory.txt
mono.txt
mutex-design.txt
nmi_watchdog.txt	x86, nmi-watchdog: update procfs nmi_watchdog file documentation v2	2008-10-30 19:07:04 +01:00
nommu-mmap.txt
numastat.txt
oops-tracing.txt
parport-lowlevel.txt
parport.txt
pi-futex.txt
pnp.txt
preempt-locking.txt
printk-formats.txt	DOC: add printk-formats.txt	2008-11-12 17:17:17 -08:00
prio_tree.txt
rbtree.txt
rfkill.txt	rfkill: add master_switch_mode and EPO lock to rfkill and rfkill-input	2008-10-31 19:00:09 -04:00
robust-futex-ABI.txt
robust-futexes.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt
SAK.txt	Remove Andrew Morton's old email accounts	2008-10-16 11:21:32 -07:00
SecurityBugs
SELinux.txt
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
Smack.txt
sparse.txt
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt	Update stable tree documentation	2008-10-29 15:03:49 -07:00
SubmitChecklist	documentation: explain memory barriers	2008-10-16 11:21:32 -07:00
SubmittingDrivers	Remove Andrew Morton's old email accounts	2008-10-16 11:21:32 -07:00
SubmittingPatches	Merge branch 'docs' of git://git.lwn.net/linux-2.6	2008-10-16 12:18:16 -07:00
svga.txt
sysfs-rules.txt
sysrq.txt	Merge branch 'v28-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-10-20 13:19:56 -07:00
tracepoints.txt	tracepoints: Documentation TPPROTO misspelt in Documentation/tracepoints.txt	2008-11-29 15:13:42 +01:00
unaligned-memory-access.txt
unicode.txt
unshare.txt
VGA-softcursor.txt
video-output.txt
volatile-considered-harmful.txt
voyager.txt
zorro.txt