Currently one can enable slab reclaim by setting an explicit option in
/proc/sys/vm/zone_reclaim_mode. Slab reclaim is then used as a final
option if the freeing of unmapped file backed pages is not enough to free
enough pages to allow a local allocation.
However, that means that the slab can grow excessively and that most memory
of a node may be used by slabs. We have had a case where a machine with
46GB of memory was using 40-42GB for slab. Zone reclaim was effective in
dealing with pagecache pages. However, slab reclaim was only done during
global reclaim (which is a bit rare on NUMA systems).
This patch implements slab reclaim during zone reclaim. Zone reclaim
occurs if there is a danger of an off node allocation. At that point we
1. Shrink the per node page cache if the number of pagecache
pages is more than min_unmapped_ratio percent of pages in a zone.
2. Shrink the slab cache if the number of the nodes reclaimable slab pages
(patch depends on earlier one that implements that counter)
are more than min_slab_ratio (a new /proc/sys/vm tunable).
The shrinking of the slab cache is a bit problematic since it is not node
specific. So we simply calculate what point in the slab we want to reach
(current per node slab use minus the number of pages that neeed to be
allocated) and then repeately run the global reclaim until that is
unsuccessful or we have reached the limit. I hope we will have zone based
slab reclaim at some point which will make that easier.
The default for the min_slab_ratio is 5%
Also remove the slab option from /proc/sys/vm/zone_reclaim_mode.
[akpm@osdl.org: cleanups]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (28 commits)
kbuild: add distclean info to 'make help' and more details for 'clean'
dontdiff: add utsrelease.h
kbuild: fix "mkdir -p" usage in scripts/package/mkspec
kbuild: correct and clarify versioning info in Makefile
kbuild: fixup Documentation/kbuild/modules.txt
kbuild: Extend kbuild/defconfig tags support to exuberant ctags
kbuild: fix for some typos in Documentation/makefiles.txt
kbuild: clarify "make C=" build option
Documentaion: update Documentation/Changes with minimum versions
kbuild: update help in top level Makefile
kbuild: fail kernel compilation in case of unresolved module symbols
kbuild: remove debug left-over from Makefile.host
kbuild: create output directory for hostprogs with O=.. build
kbuild: add missing return statement in modpost.c:secref_whitelist()
kbuild: preperly align SYSMAP output
kbuild: make -rR is now default
kbuild: make V=2 tell why a target is rebuild
kbuild: modpost on vmlinux regardless of CONFIG_MODULES
kbuild: ignore references from ".pci_fixup" to ".init.text"
kbuild: linguistic fixes for Documentation/kbuild/makefiles.txt
...
I noticed a few typos while reading makefiles.txt to learn about the
kbuild system. Attached is a patch against 2.6.18 to fix them.
Remove trailing whitespace while we are there..
Signed-off-by: Bryce Harrington <bryce@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Based on conversations with greg kh (and noticing a simple typo),
these are the actual minimal versions for 2.6.18.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
I have done a look-through through Documentation/kbuild/ and my corrections
(proposed) are attached.
Cc'ed are original author Michael (responsible for comitting changes to
these files?), Sam (kbuild maintainer), Adrian (-trivial maintainer).
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
I have done a look-through through Documentation/kbuild/ and my corrections
(proposed) are attached.
Cc'ed are original author Michael (responsible for comitting changes to
these files?), Sam (kbuild maintainer), Adrian (-trivial maintainer).
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
I have done a look-through through Documentation/kbuild/ and my corrections
(proposed) are attached.
Cc'ed are original author Michael (responsible for comitting changes to
these files?), Sam (kbuild maintainer), Adrian (-trivial maintainer).
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This has been discussed on dccp@vger and removes the necessity for applications
to supply service codes in each and every case.
If an application does not want to provide a service code, that's fine, it will
be given 0. Otherwise, service codes can be set via socket options as before.
This patch has been tested using various client/server configurations
(including listening on multiple service codes).
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: (50 commits)
[libata] Delete pata_it8172 driver
[PATCH] libata: improve handling of diagostic fail (and hardware that misreports it)
[PATCH] libata: fix non-uniform ports handling
Fix libata resource conflict for legacy mode
[libata] ata_piix: build fix
[PATCH] pata_amd: Check enable bits on Nvidia
[PATCH] Update SiS PATA
[libata] Add pata_jmicron driver to Kconfig, Makefile
[libata #pata-drivers] Trim trailing whitespace.
[libata] Trim trailing whitespace.
[libata] Add a bunch of PATA drivers.
Rename libata-bmdma.c to libata-sff.c.
libata: Grand renaming.
Clean up drivers/ata/Kconfig a bit.
[PATCH] CONFIG_PM=n slim: drivers/scsi/sata_sil*
[PATCH] sata_via: Add SATA support for vt8237a
[PATCH] libata: change path to libata in libata.tmpl
[PATCH] libata: s/CONFIG_SCSI_SATA/CONFIG_[S]ATA/g in pci/quirks.c
libata: Make sure drivers/ata is a separate Kconfig menu
[libata] ata_piix: add missing kfree()
...
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (217 commits)
net/ieee80211: fix more crypto-related build breakage
[PATCH] Spidernet: add ethtool -S (show statistics)
[NET] GT96100: Delete bitrotting ethernet driver
[PATCH] mv643xx_eth: restrict to 32-bit PPC_MULTIPLATFORM
[PATCH] Cirrus Logic ep93xx ethernet driver
r8169: the MMIO region of the 8167 stands behin BAR#1
e1000, ixgb: Remove pointless wrappers
[PATCH] Remove powerpc specific parts of 3c509 driver
[PATCH] s2io: Switch to pci_get_device
[PATCH] gt96100: move to pci_get_device API
[PATCH] ehea: bugfix for register access functions
[PATCH] e1000 disable device on PCI error
drivers/net/phy/fixed: #if 0 some incomplete code
drivers/net: const-ify ethtool_ops declarations
[PATCH] ethtool: allow const ethtool_ops
[PATCH] sky2: big endian
[PATCH] sky2: fiber support
[PATCH] sky2: tx pause bug fix
drivers/net: Trim trailing whitespace
[PATCH] ehea: IBM eHEA Ethernet Device Driver
...
Manually resolved conflicts in drivers/net/ixgb/ixgb_main.c and
drivers/net/sky2.c related to CHECKSUM_HW/CHECKSUM_PARTIAL changes by
commit 84fa7933a3 that just happened to be
next to unrelated changes in this update.
Received from Mark Salyzyn:
This patch to the driver's documentation adds a few new product entries,
sorts the entries on OEM lines first for easy searching, followed by
product id order to make it easier to compare against the open source
pci list. The driver has 'family match' so is somewhat future proof, no
code changes are required to recognize the new products.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* 'linus' of master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa: (148 commits)
[ALSA] intel8x0m - Free irq in suspend
[ALSA] Move CONFIG_SND_AC97_POWER_SAVE to pci/Kconfig
[ALSA] usb-audio: add mixer control names for the Aureon 5.1 MkII
[ALSA] ES1938: remove duplicate field initialization
[ALSA] usb-audio: increase number of packets per URB
[ALSA] hda-codec - Fix headphone auto-toggle on sigmatel codec
[ALSA] hda-intel - A slight cleanup of timeout check in azx_get_response()
[ALSA] hda-codec - Fix mic input with STAC92xx codecs
[ALSA] mixart: Use SEEK_{SET,CUR,END} instead of hardcoded values
[ALSA] gus: Use SEEK_{SET,CUR,END} instead of hardcoded values
[ALSA] opl4: Use SEEK_{SET,CUR,END} instead of hardcoded values
[ALSA] sound core: Use SEEK_{SET,CUR,END} instead of hardcoded values
[ALSA] hda-codec - Support multiple headphone pins
[ALSA] hda_intel prefer 24bit instead of 20bit
[ALSA] hda-codec - Add vendor ids for Motorola and Conexant
[ALSA] hda-codec - Add device id for Motorola si3054-compatible codec
[ALSA] Add missing compat ioctls for ALSA control API
[ALSA] powermac - Fix Oops when conflicting with aoa driver
[ALSA] aoa: add locking to tas codec
[ALSA] hda-intel - Fix suspend/resume with MSI
...
Fix the order to call pci_disable_msi() to be after free_irq().
(Otherwise pci_disable_msi() bugs you.)
Also, added a description of disable_msi option to documentation.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Added the support for LG LW25 laptop with ALC880 codec.
It's the same codec model as LG LW20 (model=lg-lw).
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This patch renames the 965_2112 function ids to 965_3ST, and
adds functional support for 965_5ST (5 stack 7.1 surround).
Signed-off-by: Tobin Davis <tdavis@dsl-only.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
- AR11M and AR11S uses the same chip hence we claim to support the AR Series.
- Added commentary about STAC9225s which shares the same id as CXD9872RD.
- Added entry for 7662 but won't work automatically until pci_subdevice
is known.
- 'vaio' model now corresponds to CXD9872RD_VAIO for backward compat.
- Replaced STAC766x_VAIO with CXD9872RD_VAIO, STAC9872AK_VAIO, STAC9872K_VAIO
and CXD9872AKD_VAIO
- Added 'vaio-ar' model for potential future modifications.
Signed-off-by: Guillaume Munch <diabo@free.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Patch enables the internal speaker on acer laptops with ALC883.
Signed-off-by: Vladimir Avdonin <vldmrrr@yahoo.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This patch adds automatic detection for Sigmatel ID 7664,
the sound chip in Sony Vaio AR 11B (european name).
- patch_stac7661 becomes patch_stac766x
- .id = 0x83847664 is added
Signed-off-by: Guillaume Munch <diabo@free.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Added a new model 'uniwill-m31' for Uniwill laptops with ALC861
codec chip. The patch is taken from ALSA bug#2035, and modifeid.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
- Added model=arima for Arima W820Di1 with ALC882 codec chip
- Added EAPD-control verbs to TCL S700 init verbs
- Added missing model strings for Realtek codecs (to be specified
via module option explicitly for testing/debugging)
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Added the support of Benq laptop with ALC262 codec.
A model string 'benq' is added, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Added the proper model entry for Clevo m665n laptop with ALC880 codec.
Also, added a model string 'clevo' to enable the clevo-type model option.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
We do not always need proxy NDP functionality even we
enable forwarding.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Documentation for the NetLabel system, this includes a basic overview
of how NetLabel works, how LSM developers can integrate it into their
favorite LSM, as well as documentation on the CIPSO related sysctl
variables. Also, due to the difficulty of finding expired IETF
drafts, I am including the IETF CIPSO draft that is the basis of the
NetLabel CIPSO implementation.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This adds security to flow key for labeling of flows as also to allow
for making flow cache lookups based on the security label seemless.
Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch updates the documentation to reflect the switch from digest
to hash. It also replaces notes about emailing James Morris to refer
to me instead.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This reverts commits 11012d419c and
40dd2d20f2, which allowed us to use the
MMIO accesses for PCI config cycles even without the area being marked
reserved in the e820 memory tables.
Those changes were needed for EFI-environment Intel macs, but broke some
newer Intel 965 boards, so for now it's better to revert to our old
2.6.17 behaviour and at least avoid introducing any new breakage.
Andi Kleen has a set of patches that work with both EFI and the broken
Intel 965 boards, which will be applied once they get wider testing.
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Edgar Hucek <hostmaster@ed-soft.at>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The code for frame diverter is unmaintained and has bitrotted.
The number of users is very small and the code has lots of problems.
If anyone is using it, they maybe exposing themselves to bad packet attacks.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
I'm not sure if documenting this here is appropriate, but
if it is, here is some text to put there.
Signed-Off-By: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Turn Appropriate Byte Count off by default because it unfairly
penalizes applications that do small writes. Add better documentation
to describe what it is so users will understand why they might want to
turn it on.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for new hardware and bumps the version to 3.6.10. It seems
there were several changes introduced including soft_irq. I decided to
bump the major number to reflect these changes. Since we're still
supporting older vendor kernels I need some way differentiate between
kernel versions <=2.6.10 and newer kernels >=2.6.16.
Signed-off-by: Mike Miller <mike.miller@hp.com>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Claim an ID number for Xen in the LOADER_TYPE field.
Also, keep the table in zero-page.txt consistent with boot.txt.
[hpa says: 6 was skipped because I couldn't rule out that it hadn't been
unofficially used. It seemed easier to skip it for now.]
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The DCO does not mean anything if we allow anonymous contributors to the
kernel. As this is an open source project, we need to do everything in the
open.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Christoph Lameter