13 Dec, 2011
7 commits
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This patch introduces kmem.tcp.usage_in_bytes file, living in the
kmem_cgroup filesystem. It is a simple read-only file that displays the
amount of kernel memory currently consumed by the cgroup.Signed-off-by: Glauber Costa
Reviewed-by: Hiroyouki Kamezawa
CC: David S. Miller
CC: Eric W. Biederman
Signed-off-by: David S. Miller -
This patch uses the "tcp.limit_in_bytes" field of the kmem_cgroup to
effectively control the amount of kernel memory pinned by a cgroup.This value is ignored in the root cgroup, and in all others,
caps the value specified by the admin in the net namespaces'
view of tcp_sysctl_mem.If namespaces are being used, the admin is allowed to set a
value bigger than cgroup's maximum, the same way it is allowed
to set pretty much unlimited values in a real box.Signed-off-by: Glauber Costa
Reviewed-by: Hiroyouki Kamezawa
CC: David S. Miller
CC: Eric W. Biederman
Signed-off-by: David S. Miller -
This patch introduces memory pressure controls for the tcp
protocol. It uses the generic socket memory pressure code
introduced in earlier patches, and fills in the
necessary data in cg_proto struct.Signed-off-by: Glauber Costa
Reviewed-by: KAMEZAWA Hiroyuki
CC: Eric W. Biederman
Signed-off-by: David S. Miller -
The goal of this work is to move the memory pressure tcp
controls to a cgroup, instead of just relying on global
conditions.To avoid excessive overhead in the network fast paths,
the code that accounts allocated memory to a cgroup is
hidden inside a static_branch(). This branch is patched out
until the first non-root cgroup is created. So when nobody
is using cgroups, even if it is mounted, no significant performance
penalty should be seen.This patch handles the generic part of the code, and has nothing
tcp-specific.Signed-off-by: Glauber Costa
Reviewed-by: KAMEZAWA Hiroyuki
CC: Kirill A. Shutemov
CC: David S. Miller
CC: Eric W. Biederman
CC: Eric Dumazet
Signed-off-by: David S. Miller -
This patch lays down the foundation for the kernel memory component
of the Memory Controller.As of today, I am only laying down the following files:
* memory.independent_kmem_limit
* memory.kmem.limit_in_bytes (currently ignored)
* memory.kmem.usage_in_bytes (always zero)Signed-off-by: Glauber Costa
CC: Kirill A. Shutemov
CC: Paul Menage
CC: Greg Thelen
CC: Johannes Weiner
CC: Michal Hocko
Signed-off-by: David S. Miller -
…wireless-next into for-davem
08 Dec, 2011
1 commit
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This code has been on the list to remove for a long
time, so disable it by default, add a warning to its
Kconfig, and schedule it for removal in 3.5.The only known dependency, hal, has not required it
since its 0.5.12 release, which was in early 2009
and hal has since been deprecated completely.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
07 Dec, 2011
3 commits
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
net: Silence seq_scale() unused warning
ipv4:correct description for tcp_max_syn_backlog
pasemi_mac: Fix building as module
netback: Fix alert message.
r8169: fix Rx index race between FIFO overflow recovery and NAPI handler.
r8169: Rx FIFO overflow fixes.
ipv4: Fix peer validation on cached lookup.
ipv4: make sure RTO_ONLINK is saved in routing cache
iwlwifi: change the default behavior of watchdog timer
iwlwifi: do not re-configure HT40 after associated
iwlagn: fix HW crypto for TX-only keys
Revert "mac80211: clear sta.drv_priv on reconfiguration"
mac80211: fill rate filter for internal scan requests
cfg80211: amend regulatory NULL dereference fix
cfg80211: fix race on init and driver registration -
Since commit c5ed63d66f24(tcp: fix three tcp sysctls tuning),
sysctl_max_syn_backlog is determined by tcp_hashinfo->ehash_mask,
and the minimal value is 128, and it will increase in proportion to the
memory of machine.
The original description for tcp_max_syn_backlog and sysctl_max_syn_backlog
are out of date.Changelog:
V2: update description for sysctl_max_syn_backlogSigned-off-by: Weiping Pan
Reviewed-by: Shan Wei
Acked-by: Neil Horman
Signed-off-by: David S. Miller
06 Dec, 2011
1 commit
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Commit dfb09f9b7ab0 ("x86, amd: Avoid cache aliasing penalties
on AMD family 15h") introduced a kernel command line parameter
called 'align_va_addr' which still refers to arguments used in
an earlier version of the patch and which got changed without
updating the documentation. Correct that omission.Signed-off-by: Borislav Petkov
Cc: Frank Arnold
Link: http://lkml.kernel.org/r/1321873819-29541-1-git-send-email-bp@amd64.org
Signed-off-by: Ingo Molnar
04 Dec, 2011
1 commit
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Open vSwitch is a multilayer Ethernet switch targeted at virtualized
environments. In addition to supporting a variety of features
expected in a traditional hardware switch, it enables fine-grained
programmatic extension and flow-based control of the network.
This control is useful in a wide variety of applications but is
particularly important in multi-server virtualization deployments,
which are often characterized by highly dynamic endpoints and the need
to maintain logical abstractions for multiple tenants.The Open vSwitch datapath provides an in-kernel fast path for packet
forwarding. It is complemented by a userspace daemon, ovs-vswitchd,
which is able to accept configuration from a variety of sources and
translate it into packet processing rules.See http://openvswitch.org for more information and userspace
utilities.Signed-off-by: Jesse Gross
03 Dec, 2011
2 commits
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* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (21 commits)
usb: ftdi_sio: add PID for Propox ISPcable III
Revert "xHCI: reset-on-resume quirk for NEC uPD720200"
xHCI: fix bug in xhci_clear_command_ring()
usb: gadget: fsl_udc: fix dequeuing a request in progress
usb: fsl_mxc_udc.c: Remove compile-time dependency of MX35 SoC type
usb: fsl_mxc_udc.c: Fix build issue by including missing header file
USB: fsl_udc_core: use usb_endpoint_xfer_isoc to judge ISO XFER
usb: udc: Fix gadget driver's speed check in various UDC drivers
usb: gadget: fix g_serial regression
usb: renesas_usbhs: fixup driver speed
usb: renesas_usbhs: fixup gadget.dev.driver when udc_stop.
usb: renesas_usbhs: fixup signal the driver that cable was disconnected
usb: renesas_usbhs: fixup device_register timing
usb: musb: PM: fix context save/restore in suspend/resume path
USB: linux-cdc-acm.inf: add support for the acm_ms gadget
EHCI : Fix a regression in the ISO scheduler
xHCI: reset-on-resume quirk for NEC uPD720200
USB: whci-hcd: fix endian conversion in qset_clear()
USB: usb-storage: unusual_devs entry for Kingston DT 101 G2
usb: option: add SIMCom SIM5218
...
02 Dec, 2011
2 commits
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This driver works with both, static platform data and device tree
bindings. It has been tested on a TQM855L board with two AN82527
CAN controllers on the local bus.CC: Devicetree-discuss@lists.ozlabs.org
CC: linuxppc-dev@ozlabs.org
CC: Kumar Gala
Signed-off-by: Wolfgang Grandegger
Acked-by: Marc Kleine-Budde
Signed-off-by: David S. Miller -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: fix meta data raid-repair merge problem
Btrfs: skip allocation attempt from empty cluster
Btrfs: skip block groups without enough space for a cluster
Btrfs: start search for new cluster at the beginning
Btrfs: reset cluster's max_size when creating bitmap
Btrfs: initialize new bitmaps' list
Btrfs: fix oops when calling statfs on readonly device
Btrfs: Don't error on resizing FS to same size
Btrfs: fix deadlock on metadata reservation when evicting a inode
Fix URL of btrfs-progs git repository in docs
btrfs scrub: handle -ENOMEM from init_ipath()
01 Dec, 2011
3 commits
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* 'dt-for-linus' of git://sources.calxeda.com/kernel/linux:
of: Add Silicon Image vendor prefix
of/irq: of_irq_init: add check for parent equal to child node -
Rick Jones reported that TCP_CONGESTION sockopt performed on a listener
was ignored for its children sockets : right after accept() the
congestion control for new socket is the system default one.This seems an oversight of the initial design (quoted from Stephen)
Based on prior investigation and patch from Rick.
Reported-by: Rick Jones
Signed-off-by: Eric Dumazet
CC: Stephen Hemminger
CC: Yuchung Cheng
Tested-by: Rick Jones
Signed-off-by: David S. Miller -
The location of the btrfs-progs repository has been changed.
This patch updates the documentation accordingly.Signed-off-by: Arnd Hannemann
29 Nov, 2011
7 commits
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"sil" is the most commonly used abbreviation for Silicon
Image products.Signed-off-by: Pawel Moll
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Add support for the XGMAC 10Gb ethernet device in the Calxeda Highbank
SOC.Signed-off-by: Rob Herring
Signed-off-by: David S. Miller -
Support for the acm_ms usb gadget on windows.
Signed-off-by: Klaus Schwarzkopf
Signed-off-by: Greg Kroah-Hartman -
The system wakeup section of Documentation/power/devices.txt is
outdated, so make it agree with the current code.Signed-off-by: Rafael J. Wysocki
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The runtime PM core code behavior related to the power.irq_safe
device flag has changed recently and the documentation should be
modified to reflect it.Signed-off-by: Rafael J. Wysocki
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The documentation file Documentation/power/devices.txt contains some
information that isn't correct any more due to code modifications
made after that file had been created (or updated last time). Fix
this.Signed-off-by: Rafael J. Wysocki
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The current power management documentation in Documentation/power/
either doesn't cover PM domains at all, or gives inaccurate
information about them, so update the relevant files in there to
follow the code.Signed-off-by: Rafael J. Wysocki
27 Nov, 2011
1 commit
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Documentation/networking/ifenslave.c: In function ‘if_getconfig’:
Documentation/networking/ifenslave.c:508:14: warning: variable ‘mtu’ set but not used [-Wunused-but-set-variable]
Documentation/networking/ifenslave.c:508:6: warning: variable ‘metric’ set but not used [-Wunused-but-set-variable]The purpose of this function is to simply print out the values
it probes, so...Signed-off-by: David S. Miller
23 Nov, 2011
2 commits
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10-bit addresses overlap with traditional 7-bit addresses, leading in
device name collisions. Add an arbitrary offset to 10-bit addresses to
prevent this collision. The offset was chosen so that the address is
still easily recognizable.Signed-off-by: Jean Delvare
Acked-by: Wolfram Sang -
Add the requisite documentation to explain to new users how net_prio cgroups work
Signed-off-by:Neil Horman
Signed-off-by: John Fastabend
CC: Robert Love
CC: "David S. Miller"
Signed-off-by: David S. Miller
22 Nov, 2011
3 commits
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* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
TTY: ldisc, wait for ldisc infinitely in hangup
TTY: ldisc, move wait idle to caller
TTY: ldisc, allow waiting for ldisc arbitrarily long
Revert "tty/serial: Prevent drop of DCD on suspend for Tegra UARTs"
RS485: fix inconsistencies in the meaning of some variables
pch_uart: Fix DMA resource leak issue
serial,mfd: Fix CMSPAR setup
tty/serial: Prevent drop of DCD on suspend for Tegra UARTs
pch_uart: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor
pch_uart: Support new device LAPIS Semiconductor ML7831 IOH
pch_uart: Fix hw-flow control issue
tty: hvc_dcc: Fix duplicate character inputs
jsm: Change maintainership -
* 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
drivers/base/node.c: fix compilation error with older versions of gcc
uio: documentation fixups
device.h: Fix struct member documentation -
The forcedeth changes had a conflict with the conversion over
to atomic u64 statistics in net-next.The libertas cfg.c code had a conflict with the bss reference
counting fix by John Linville in net-next.Conflicts:
drivers/net/ethernet/nvidia/forcedeth.c
drivers/net/wireless/libertas/cfg.c
21 Nov, 2011
1 commit
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (86 commits)
ipv4: fix redirect handling
ping: dont increment ICMP_MIB_INERRORS
sky2: fix hang in napi_disable
sky2: enforce minimum ring size
bonding: Don't allow mode change via sysfs with slaves present
f_phonet: fix page offset of first received fragment
stmmac: fix pm functions avoiding sleep on spinlock
stmmac: remove spin_lock in stmmac_ioctl.
stmmac: parameters auto-tuning through HW cap reg
stmmac: fix advertising 1000Base capabilties for non GMII iface
stmmac: use mdelay on timeout of sw reset
sky2: version 1.30
sky2: used fixed RSS key
sky2: reduce default Tx ring size
sky2: rename up/down functions
sky2: pci posting issues
sky2: fix hang on shutdown (and other irq issues)
r6040: fix check against MCRO_HASHEN bit in r6040_multicast_list
MAINTAINERS: change email address for shemminger
pch_gbe: Move #include of module.h
...
20 Nov, 2011
1 commit
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Signed-off-by: Marek Lindner
Signed-off-by: Sven Eckelmann
18 Nov, 2011
2 commits
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* 'for-linus' of git://git.kernel.dk/linux-block:
block: add missed trace_block_plug
paride: fix potential information leak in pg_read()
bio: change some signed vars to unsigned
block: avoid unnecessary plug list flush
cciss: auto engage SCSI mid layer at driver load time
loop: cleanup set_status interface
include/linux/bio.h: use a static inline function for bio_integrity_clone()
loop: prevent information leak after failed read
block: Always check length of all iov entries in blk_rq_map_user_iov()
The Windows driver .inf disables ASPM on all cciss devices. Do the same.
backing-dev: ensure wakeup_timer is deleted
block: Revert "[SCSI] genhd: add a new attribute "alias" in gendisk" -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix the connection selection of ADCs on Cirrus codecs
ALSA: hda - Update URLs in document
ALSA: hda - move eld->spk_alloc fixup to hdmi_update_eld()
ALSA: hda - delayed ELD repoll
ALSA: hda - fix ELD memory leak
ALSA: hda/realtek: remove redundant semicolon
ALSA: hda - pwr_nids cleanup for IDT codecs
16 Nov, 2011
3 commits
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Some stuff was moved from kernel.org to other places.
Signed-off-by: Takashi Iwai
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A long time ago, probably in 2002, one of the distros, or maybe more than
one, loaded block drivers prior to loading the SCSI mid layer. This meant
that the cciss driver, being a block driver, could not engage the SCSI mid
layer at init time without panicking, and relied on being poked by a
userland program after the system was up (and the SCSI mid layer was
therefore present) to engage the SCSI mid layer.This is no longer the case, and cciss can safely rely on the SCSI mid
layer being present at init time and engage the SCSI mid layer straight
away. This means that users will see their tape drives and medium
changers at driver load time without need for a script in /etc/rc.d that
does this:for x in /proc/driver/cciss/cciss*
do
echo "engage scsi" > $x
doneHowever, if no tape drives or medium changers are detected, the SCSI mid
layer will not be engaged. If a tape drive or medium change is later
hot-added to the system it will then be necessary to use the above script
or similar for the device(s) to be acceesible.Signed-off-by: Stephen M. Cameron
Signed-off-by: Andrew Morton
Signed-off-by: Jens Axboe -
The crisv10.c and the atmel_serial.c serial drivers intepret the fields of the
serial_rs485 structure in a different way.In particular, crisv10.c uses SER_RS485_RTS_AFTER_SEND and
SER_RS485_RTS_ON_SEND for the voltage of the RTS pin; atmel_serial.c,
instead, uses these values to know if a delay must be set before and
after sending. This patch makes the usage of these variables consistent
across all drivers and fixes the Documentation as well.From now on, SER_RS485_RTS_AFTER_SEND and SER_RS485_RTS_ON_SEND will be
used to set the voltage of the RTS pin (as in the crisv10.c driver); the
delay will be understood by looking only at the value of
delay_rts_before_send and delay_rts_after_send.Signed-off-by: Claudio Scordino
Signed-off-by: Darron Black
Acked-by: Jesper Nilsson
Acked-by: Nicolas Ferre
Acked-by: Alan Cox
Signed-off-by: Greg Kroah-Hartman
