Commit Graph

254862 Commits

Author SHA1 Message Date
Kukjin Kim
cf2e9c7b48 Merge branch 'next-samsung-clkdev-fix' into next-samsung-cleanup 2011-07-21 02:09:46 +09:00
Mark Brown
b5930b83c2 ARM: S3C64XX: Convert to using REGULATOR_SUPPLY() on SMDK6410
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:09:40 +09:00
Thomas Abraham
e480559995 ARM: SAMSUNG: Added mach/clkdev.h
This is temporary patch for building with clkdev.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:04:14 +09:00
Thomas Abraham
badc4f2d60 ARM: EXYNOS4: Add clkdev support
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
[kgene.kim@samsung.com: removed changes of mach-exynos4/time.c]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:03:25 +09:00
Thomas Abraham
b2a9dd466c ARM: S5PV210: Add clkdev support
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-20 19:11:32 +09:00
Thomas Abraham
29e8eb0fdb ARM: S5PC100: Add clkdev support
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-20 19:11:31 +09:00
Thomas Abraham
d8b22d25b7 ARM: S5P64X0: Add clkdev support
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-20 19:11:30 +09:00
Thomas Abraham
226e85f4da ARM: S3C64XX: Add clkdev support
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-20 19:11:30 +09:00
Thomas Abraham
e83626f2fd ARM: S3C24XX: Add clkdev support
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-20 19:11:29 +09:00
Thomas Abraham
f86c666092 ARM: SAMSUNG: Add clkdev infrastructure
The struct clk definition for Samsung platforms is extended to include
a instance of struct clk_lookup and a device name. When clocks are
registered using s3c24xx_register_clock function, the dev_id, con_id
and clk members are initialized with information from the struct clk
instance and struct clk_lookup member is registered.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-20 19:11:28 +09:00
Thomas Abraham
5822a5df5e serial: Remove redundant console_initcall from s3c and s5p console drivers
Uart port is registered as a console during the driver's probe.
So explict registration of console with console_initcall is
removed.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
[kgene.kim@samsung.com: removed changes of s3c2400 and s3c24a0]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-20 19:10:43 +09:00
Linus Torvalds
620917de59 Linux 3.0-rc7 2011-07-11 16:51:52 -07:00
Linus Torvalds
5adaf851d2 Documentation/Changes: remove some really obsolete text
That file harkens back to the days of the big 2.4 -> 2.6 version jump,
and was based even then on older versions.  Some of it is just obsolete,
and Jesper Juhl points out that it talks about kernel versions 2.6 and
should be updated to 3.0.

Remove some obsolete text, and re-phrase some other to not be 2.6-specific.

Reported-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-11 16:48:38 -07:00
Linus Torvalds
c15000b40d Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
  [media] msp3400: fill in v4l2_tuner based on vt->type field
  [media] tuner-core.c: don't change type field in g_tuner or g_frequency
  [media] cx18/ivtv: fix g_tuner support
  [media] tuner-core: power up tuner when called with s_power(1)
  [media] v4l2-ioctl.c: check for valid tuner type in S_HW_FREQ_SEEK
  [media] tuner-core: simplify the standard fixup
  [media] tuner-core/v4l2-subdev: document that the type field has to be filled in
  [media] v4l2-subdev.h: remove unused s_mode tuner op
  [media] feature-removal-schedule: change in how radio device nodes are handled
  [media] bttv: fix s_tuner for radio
  [media] pvrusb2: fix g/s_tuner support
  [media] v4l2-ioctl.c: prefill tuner type for g_frequency and g/s_tuner
  [media] tuner-core: fix tuner_resume: use t->mode instead of t->type
  [media] tuner-core: fix s_std and s_tuner
2011-07-11 16:43:27 -07:00
Linus Torvalds
9ddf7f5058 Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  PM: Reintroduce dropped call to check_wakeup_irqs
2011-07-11 12:49:03 -07:00
Linus Torvalds
71a1b44b03 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: drop spinlock before calling cifs_put_tlink
  cifs: fix expand_dfs_referral
  cifs: move bdi_setup_and_register outside of CONFIG_CIFS_DFS_UPCALL
  cifs: factor smb_vol allocation out of cifs_setup_volume_info
  cifs: have cifs_cleanup_volume_info not take a double pointer
  cifs: fix build_unc_path_to_root to account for a prefixpath
  cifs: remove bogus call to cifs_cleanup_volume_info
2011-07-11 12:48:24 -07:00
Linus Torvalds
c891f2cd89 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] fix cpumask memory leak in acpi-cpufreq on cpu hotplug.
2011-07-11 12:47:53 -07:00
Linus Torvalds
145628130b Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86:
  hp-wmi: fix use after free
  dell-laptop - using buffer without mutex_lock
  Revert: "dell-laptop: Toggle the unsupported hardware killswitch"
  platform-drivers-x86: set backlight type to BACKLIGHT_PLATFORM
  thinkpad-acpi: handle HKEY 0x4010, 0x4011 events
  drivers/platform/x86: Fix memory leak
  thinkpad-acpi: handle some new HKEY 0x60xx events
  acer-wmi: fix bitwise bug when set device state
  acer-wmi: Only update rfkill status for associated hotkey events
2011-07-11 12:47:09 -07:00
Linus Torvalds
83e9569714 Merge branch 'movieboard' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'movieboard' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: ohci: do not bind to Pinnacle cards, avert panic
2011-07-11 12:46:39 -07:00
Joe Perches
404ba3f029 ath5k: Add missing breaks in switch/case
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-11 12:46:02 -07:00
Muthu Kumar
0580181784 Documentation/spinlocks.txt: Remove reference to sti()/cli()
Since we removed sti()/cli() and related, how about removing it from
Documentation/spinlocks.txt?

Signed-off-by: Muthukumar R <muthur@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-11 12:45:04 -07:00
Jeff Layton
f484b5d001 cifs: drop spinlock before calling cifs_put_tlink
...as that function can sleep.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-07-11 18:40:52 +00:00
Eric Dumazet
0401846c33 hp-wmi: fix use after free
[  191.310008] WARNING: kmemcheck: Caught 32-bit read from freed memory (f0d25f14)
[  191.310011] c056d2f088000000105fd2f00000000050415353040000000000000000000000
[  191.310020]  i i i i f f f f f f f f f f f f f f f f f f f f f f f f f f f f
[  191.310027]                                          ^
[  191.310029]
[  191.310032] Pid: 737, comm: modprobe Not tainted 3.0.0-rc5+ #268 Hewlett-Packard HP Compaq 6005 Pro SFF PC/3047h
[  191.310036] EIP: 0060:[<f80b3104>] EFLAGS: 00010286 CPU: 0
[  191.310039] EIP is at hp_wmi_perform_query+0x104/0x150 [hp_wmi]
[  191.310041] EAX: f0d25601 EBX: f0d25f00 ECX: 000121cf EDX: 000121ce
[  191.310043] ESI: f0d25f10 EDI: f0f97ea8 EBP: f0f97ec4 ESP: c173f34c
[  191.310045]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[  191.310046] CR0: 8005003b CR2: f540c000 CR3: 30f30000 CR4: 000006d0
[  191.310048] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[  191.310050] DR6: ffff4ff0 DR7: 00000400
[  191.310051]  [<f80b317b>] hp_wmi_dock_state+0x2b/0x40 [hp_wmi]
[  191.310054]  [<f80b6093>] hp_wmi_init+0x93/0x1a8 [hp_wmi]
[  191.310057]  [<c10011f0>] do_one_initcall+0x30/0x170
[  191.310061]  [<c107ab9f>] sys_init_module+0xef/0x1a60
[  191.310064]  [<c149f998>] sysenter_do_call+0x12/0x28
[  191.310067]  [<ffffffff>] 0xffffffff

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-07-11 09:52:35 -04:00
Jose Alonso
b486742a12 dell-laptop - using buffer without mutex_lock
Using buffer->output[1] without mutex_lock()

Signed-off-by: Jose Alonso <joalonsof@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-07-11 09:52:31 -04:00
Keng-Yu Lin
be65dde82a Revert: "dell-laptop: Toggle the unsupported hardware killswitch"
This reverts commit a3d77411e8,

as it causes a mess in the wireless rfkill status on some models.
It is probably a bad idea to toggle the rfkill for all dell models
without the respect to the claim that it is hardware-controlled.

Cc: stable@kernel.org
Signed-off-by: Keng-Yu Lin <kengyu@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-07-11 09:52:19 -04:00
Colin Cross
887596224c PM: Reintroduce dropped call to check_wakeup_irqs
Patch 2e711c04db
(PM: Remove sysdev suspend, resume and shutdown operations)
deleted sysdev_suspend(), which was being relied on to call
check_wakeup_irqs() in suspend.  If check_wakeup_irqs() is not
called, wake interrupts that are pending when suspend is
entered may be lost.  It also breaks IRQCHIP_MASK_ON_SUSPEND,
which is handled in check_wakeup_irqs().

This patch adds a call to check_wakeup_irqs() in syscore_suspend(),
similar to what was deleted in sysdev_suspend().

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-07-11 10:51:49 +02:00
Luming Yu
50f4ddd4ff [CPUFREQ] fix cpumask memory leak in acpi-cpufreq on cpu hotplug.
I came across a memory leak during a cyclic cpu-online-offline test.

Signed-off-by: Yu Luming <luming.yu@intel.com>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Jones <davej@redhat.com>
2011-07-10 17:03:04 -04:00
Linus Torvalds
e3bbfa78ba Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging:
  hwmon: (pmbus) Improve auto-detection of temperature status register
  hwmon: (lm95241) Fix negative temperature results
  hwmon: (lm95241) Fix chip detection code
2011-07-10 10:24:47 -07:00
Guenter Roeck
22e6b2312d hwmon: (pmbus) Improve auto-detection of temperature status register
It is possible that a PMBus device supports the READ_TEMPERATURE2 and/or
READ_TEMPERATURE3 registers but does not support READ_TEMPERATURE1.
Improve temperature status register detection to address this condition.

Reported-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org # 2.6.39+
2011-07-10 08:54:29 -07:00
Guenter Roeck
0c2a40e2fe hwmon: (lm95241) Fix negative temperature results
Negative temperatures were returned in degrees C instead of milli-Degrees C.
Also, negative temperatures were reported for remote temperature sensors even
if the chip was configured for positive-only results.

Fix by detecting temperature modes, and by treating negative temperatures
similar to positive temperatures, with appropriate sign extension.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org # 2.6.30+
2011-07-10 08:54:15 -07:00
Linus Torvalds
aa4c495e3d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Fix a copmile warning
  ASoC: ak4642: fixup snd_soc_update_bits mask for PW_MGMT2
  ALSA: hda - Change all ADCs for dual-adc switching mode for Realtek
  ASoC: Manage WM8731 ACTIVE bit as a supply widget
  ASoC: Don't set invalid name string to snd_card->driver field
  ASoC: Ensure we delay long enough for WM8994 FLL to lock when starting
  ASoC: Tegra: I2S: Ensure clock is enabled when writing regs
  ASoC: Fix Blackfin I2S _pointer() implementation return in bounds values
  ASoC: tlv320aic3x: Do soft reset to codec when going to bias off state
  ASoC: tlv320aic3x: Don't sync first two registers from register cache
  audio: tlv320aic26: fix PLL register configuration
2011-07-10 07:29:22 -07:00
Linus Torvalds
2169ce92ca Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: conditional resource-reallocation through kernel parameter pci=realloc
2011-07-10 07:28:51 -07:00
Linus Torvalds
7fc7693627 Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 6994/1: smp_twd: Fix typo in 'twd_timer_rate' printing
  ARM: 6987/1: l2x0: fix disabling function to avoid deadlock
  ARM: 6966/1: ep93xx: fix inverted RTS/DTR signals on uart1
  ARM: 6980/1: mmci: use StartBitErr to detect bad connections
  ARM: 6979/1: mach-vt8500: add forgotten irq_data conversion
  ARM: move memory layout sanity checking before meminfo initialization
  ARM: 6990/1: MAINTAINERS: add entry for ARM PMU profiling and debugging
  ARM: 6989/1: perf: do not start the PMU when no events are present
  ARM: dmabounce: fix map_single() error return value
2011-07-10 07:28:30 -07:00
Linus Torvalds
8733449b7c Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: clean up multiple crtc handling for evergreen+ (v2)
2011-07-10 07:27:45 -07:00
Stefan Richter
7f7e37115a firewire: ohci: do not bind to Pinnacle cards, avert panic
When firewire-ohci is bound to a Pinnacle MovieBoard, eventually a
"Register access failure" is logged and an interrupt storm or a kernel
panic happens.  https://bugzilla.kernel.org/show_bug.cgi?id=36622

Until this is sorted out (if that is going to succeed at all), let's
just prevent firewire-ohci from touching these devices.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: <stable@kernel.org>
2011-07-10 12:53:27 +02:00
Jeff Layton
b9bce2e9f9 cifs: fix expand_dfs_referral
Regression introduced in commit 724d9f1cfb.

Prior to that, expand_dfs_referral would regenerate the mount data string
and then call cifs_parse_mount_options to re-parse it (klunky, but it
worked). The above commit moved cifs_parse_mount_options out of cifs_mount,
so the re-parsing of the new mount options no longer occurred. Fix it by
making expand_dfs_referral re-parse the mount options.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-07-09 21:25:57 +00:00
Jeff Layton
20547490c1 cifs: move bdi_setup_and_register outside of CONFIG_CIFS_DFS_UPCALL
This needs to be done regardless of whether that KConfig option is set
or not.

Reported-by: Sven-Haegar Koch <haegar@sdinet.de>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-07-09 20:29:51 +00:00
Takashi Iwai
e8fd86efaa Merge branch 'fix/asoc' into for-linus 2011-07-09 11:56:43 +02:00
Takashi Iwai
abaead6ac5 ALSA: hda - Fix a copmile warning
It's harmless but annyoing.
  sound/pci/hda/patch_realtek.c: In function ‘alc_cap_getput_caller’:
  sound/pci/hda/patch_realtek.c:2722:9: warning: ‘err’ may be used uninitialized in this function

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-09 11:55:28 +02:00
Takashi Iwai
18361bbe31 Merge branch 'for-3.0' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6 into fix/asoc 2011-07-09 09:44:09 +02:00
Linus Torvalds
f1a04dbd1e Merge branch 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung
* 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: S3C2440: fix section mismatch on mini2440
  ARM: S3C24XX: drop return codes in void function of dma.c
  ARM: S3C24XX: don't use uninitialized variable in dma.c
  ARM: EXYNOS4: Set appropriate I2C device variant
  ARM: S5PC100: Fix for compilation error
  spi/s3c64xx: Bug fix for SPI with different FIFO level
  ARM: SAMSUNG: Add tx_st_done variable
  ARM: EXYNOS4: Address a section mismatch w/ suspend issue.
  ARM: S5P: Fix bug on init of PWMTimers for HRTimer
  ARM: SAMSUNG: header file revised to prevent declaring duplicated
  ARM: EXYNOS4: fix improper gpio configuration
  ARM: EXYNOS4: Fix card detection for sdhci 0 and 2
2011-07-08 23:28:23 -07:00
Linus Torvalds
b56045d401 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
  regulator: max8997: Fix setting inappropriate value for ramp_delay variable
  regulator: db8500-prcmu: small fixes
  regulator: max8997: remove dependency on platform_data pointer
  regulator: MAX8997: Fix for divide by zero error
  regulator: max8952 - fix wrong gpio valid check
2011-07-08 23:26:28 -07:00
Linus Torvalds
1acc9309eb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  btrfs: fix oops when doing space balance
  Btrfs: don't panic if we get an error while balancing V2
  btrfs: add missing options displayed in mount output
2011-07-08 23:25:45 -07:00
Bjorn Helgaas
c2d197e82b MAINTAINERS: update Bjorn Helgaas's email address
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-08 21:14:45 -07:00
Wolfram Sang
30cb35be6d drivers/leds/leds-pca9532.c: change driver name to be unique
This driver handles the variants pca9530-pca9533, so it chose the name
"pca953x".  However, there is a gpio driver which decided on the same
name.  As a result, those two can't be loaded at the same time.  Add a
subsystem prefix to make the driver name unique.  Device matching will not
suffer, because both are I2C drivers which match using a
i2c_device_id-table which is not altered.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-08 21:14:44 -07:00
Bob Liu
8f3b1327aa mm/nommu.c: fix remap_pfn_range()
remap_pfn_range() means map physical address pfn<<PAGE_SHIFT to user addr.

For nommu arch it's implemented by vma->vm_start = pfn << PAGE_SHIFT which
is wrong acroding the original meaning of this function.  And some driver
developer using remap_pfn_range() with correct parameter will get
unexpected result because vm_start is changed.  It should be implementd
like addr = pfn << PAGE_SHIFT but which is meanless on nommu arch, this
patch just make it simply return.

Parameter name and setting of vma->vm_flags also be fixed.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Bob Liu <lliubbo@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-08 21:14:44 -07:00
Jean-François Dagenais
f607e7fc5f w1: ds1wm: add a reset recovery parameter
This fixes a regression in 3.0 reported by Paul Parsons regarding the
removal of the msleep(1) in the ds1wm_reset() function:

: The linux-3.0-rc4 DS1WM 1-wire driver is logging "bus error, retrying"
: error messages on an HP iPAQ hx4700 PDA (XScale-PXA270):
:
: <snip>
: Driver for 1-wire Dallas network protocol.
: DS1WM w1 busmaster driver - (c) 2004 Szabolcs Gyurko
: 1-Wire driver for the DS2760 battery monitor  chip  - (c) 2004-2005, Szabolcs Gyurko
: ds1wm ds1wm: pass: 1 bus error, retrying
: ds1wm ds1wm: pass: 2 bus error, retrying
: ds1wm ds1wm: pass: 3 bus error, retrying
: ds1wm ds1wm: pass: 4 bus error, retrying
: ds1wm ds1wm: pass: 5 bus error, retrying
: ...
:
: The visible result is that the battery charging LED is erratic; sometimes
: it works, mostly it doesn't.
:
: The linux-2.6.39 DS1WM 1-wire driver worked OK.  I haven't tried 3.0-rc1,
: 3.0-rc2, or 3.0-rc3.

This sleep should not be required on normal circuitry provided the
pull-ups on the bus are correctly adapted to the slaves.  Unfortunately,
this is not always the case.  The sleep is restored but as a parameter to
the probe function in the pdata.

[akpm@linux-foundation.org: coding-style fixes]
Reported-by: Paul Parsons <lost.distance@yahoo.com>
Tested-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Jean-François Dagenais <dagenaisj@sonatest.com>
Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-08 21:14:44 -07:00
KAMEZAWA Hiroyuki
453a9bf347 memcg: fix numa scan information update to be triggered by memory event
commit 889976dbcb ("memcg: reclaim memory from nodes in round-robin
order") adds an numa node round-robin for memcg.  But the information is
updated once per 10sec.

This patch changes the update trigger from jiffies to memcg's event count.
 After this patch, numa scan information will be updated when we see 1024
events of pagein/pageout under a memcg.

[akpm@linux-foundation.org: attempt to repair code layout]
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Ying Han <yinghan@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-08 21:14:44 -07:00
KAMEZAWA Hiroyuki
4d0c066d29 memcg: fix reclaimable lru check in memcg
Now, in mem_cgroup_hierarchical_reclaim(), mem_cgroup_local_usage() is
used for checking whether the memcg contains reclaimable pages or not.  If
no pages in it, the routine skips it.

But, mem_cgroup_local_usage() contains Unevictable pages and cannot handle
"noswap" condition correctly.  This doesn't work on a swapless system.

This patch adds test_mem_cgroup_reclaimable() and replaces
mem_cgroup_local_usage().  test_mem_cgroup_reclaimable() see LRU counter
and returns correct answer to the caller.  And this new function has
"noswap" argument and can see only FILE LRU if necessary.

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix kerneldoc layout]
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Ying Han <yinghan@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-08 21:14:43 -07:00
Shaohua Li
0b43c3aab0 mm: __tlb_remove_page() check the correct batch
__tlb_remove_page() switches to a new batch page, but still checks space
in the old batch.  This check always fails, and causes a forced tlb flush.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-08 21:14:43 -07:00