28 May, 2010
40 commits
-
Signed-off-by: Christoph Hellwig
Signed-off-by: Al Viro -
Add a mutex_unlock missing on the error path. At other exists from the
function that return an error flag, the mutex is unlocked, so do the same
here.The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)//
@@
expression E1;
@@* mutex_lock(E1,...);
* mutex_unlock(E1,...);
//Signed-off-by: Julia Lawall
Signed-off-by: Al Viro -
once anon_inode_getfd() is called, you can't expect *anything* about
struct file that descriptor points to - another thread might be doing
whatever it likes with descriptor table at that point.Cc: stable
Signed-off-by: Al Viro -
__aio_put_req() plays sick games with file refcount. What
it wants is fput() from atomic context; it's almost always
done with f_count > 1, so they only have to deal with delayed
work in rare cases when their reference happens to be the
last one. Current code decrements f_count and if it hasn't
hit 0, everything is fine. Otherwise it keeps a pointer
to struct file (with zero f_count!) around and has delayed
work do __fput() on it.Better way to do it: use atomic_long_add_unless( , -1, 1)
instead of !atomic_long_dec_and_test(). IOW, decrement it
only if it's not the last reference, leave refcount alone
if it was. And use normal fput() in delayed work.I've made that atomic_long_add_unless call a new helper -
fput_atomic(). Drops a reference to file if it's safe to
do in atomic (i.e. if that's not the last one), tells if
it had been able to do that. aio.c converted to it, __fput()
use is gone. req->ki_file *always* contributes to refcount
now. And __fput() became static.Signed-off-by: Al Viro
-
Commit 1f36f774b22a0ceb7dd33eca626746c81a97b6a5 broke FS_REVAL_DOT semantics.
In particular, before this patch, the command
ls -l
in an NFS mounted directory would always check if the directory on the server
had changed and if so would flush and refill the pagecache for the dir.
After this patch, the same "ls -l" will repeatedly return stale date until
the cached attributes for the directory time out.The following patch fixes this by ensuring the d_revalidate is called by
do_last when "." is being looked-up.
link_path_walk has already called d_revalidate, but in that case LOOKUP_OPEN
is not set so nfs_lookup_verify_inode chooses not to do any validation.The following patch restores the original behaviour.
Cc: stable@kernel.org
Signed-off-by: NeilBrown
Signed-off-by: Al Viro -
This reverts commit a7cf4145bb86aaf85d4d4d29a69b50b688e2e49d.
-
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Fix build breakage -
In commit 0ac0c0d0f837c499afd02a802f9cf52d3027fa3b
cpusets: randomize node rotor used in cpuset_mem_spread_node()Jack Steiner fixed a problem with too many small tasks being
assigned to node 0. Copy his code to ia64 to avoid build error.arch/ia64/kernel/smpboot.c:641: error: ‘cpu_to_node_map’ undeclared (first use in this function)
In commit 3bccd996276b108c138e8176793a26ecef54d573
numa: ia64: use generic percpu var numa_node_id() implementationLee Schermerhorn added some set_numa_node() calls - but these
only work on CONFIG_NUMA=y configurations. Surround the calls
with #ifdef CONFIG_NUMASigned-off-by: Tony Luck
-
…git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (61 commits)
tracing: Add __used annotation to event variable
perf, trace: Fix !x86 build bug
perf report: Support multiple events on the TUI
perf annotate: Fix up usage of the build id cache
x86/mmiotrace: Remove redundant instruction prefix checks
perf annotate: Add TUI interface
perf tui: Remove annotate from popup menu after failure
perf report: Don't start the TUI if -D is used
perf: Fix getline undeclared
perf: Optimize perf_tp_event_match()
perf: Remove more code from the fastpath
perf: Optimize the !vmalloc backed buffer
perf: Optimize perf_output_copy()
perf: Fix wakeup storm for RO mmap()s
perf-record: Share per-cpu buffers
perf-record: Remove -M
perf: Ensure that IOC_OUTPUT isn't used to create multi-writer buffers
perf, trace: Optimize tracepoints by using per-tracepoint-per-cpu hlist to track events
perf, trace: Optimize tracepoints by removing IRQ-disable from perf/tracepoint interaction
perf tui: Allow disabling the TUI on a per command basis in ~/.perfconfig
... -
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight:
gta02: Use pcf50633 backlight driver instead of platform backlight driver.
backlight: pcf50633: Register a pcf50633-backlight device in pcf50633 core driver.
backlight: Add pcf50633 backlight driver
backlight: 88pm860x_bl: fix error handling in pm860x_backlight_probe
backlight: max8925_bl: Fix error handling path
backlight: l4f00242t03: fix error handling in l4f00242t03_probe
backlight: add S6E63M0 AMOLED LCD Panel driver
backlight: adp8860: add support for ADP8861 & ADP8863
backlight: mbp_nvidia_bl - Fix DMI_SYS_VENDOR for MacBook1,1
backlight: Add Cirrus EP93xx backlight driver
backlight: l4f00242t03: Fix regulators handling code in remove function
backlight: fix adp8860_bl build errors
backlight: new driver for the ADP8860 backlight parts
backlight: 88pm860x_bl - potential memory leak
backlight: mbp_nvidia_bl - add support for older MacBookPro and MacBook 6,1.
backlight: Kconfig cleanup
backlight: backlight_device_register() return ERR_PTR() -
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
leds: Add mx31moboard MC13783 led support
leds: Add mc13783 LED support
leds: leds-ss4200: fix led_classdev_unregister twice in error handling
leds: leds-lp3944: properly handle lp3944_configure fail in lp3944_probe
leds: led-class: set permissions on max_brightness file to 0444
leds: leds-gpio: Change blink_set callback to be able to turn off blinking
leds: Add LED driver for the Soekris net5501 board
leds: 88pm860x - fix checking in probe function -
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: (23 commits)
hwmon: (lm75) Add support for the Texas Instruments TMP105
hwmon: (ltc4245) Read only one GPIO pin
hwmon: (dme1737) Add SCH5127 support
hwmon: (tmp102) Don't always stop chip at exit
hwmon: (tmp102) Fix suspend and resume functions
hwmon: (tmp102) Various fixes
hwmon: Driver for TI TMP102 temperature sensor
hwmon: EMC1403 thermal sensor support
hwmon: (applesmc) Add temperature sensor labels to sysfs interface
hwmon: (applesmc) Add generic support for MacBook Pro 7
hwmon: (applesmc) Add generic support for MacBook Pro 6
hwmon: (applesmc) Add support for MacBook Pro 5,3 and 5,4
hwmon: (tmp401) Reorganize code to get rid of static forward declarations
hwmon: (tmp401) Use constants for sysfs file permissions
hwmon: (adm1031) Allow setting update rate
hwmon: Add description of the update_rate sysfs attribute
hwmon: (lm90) Use programmed update rate
hwmon: (f71882fg) Acquire I/O regions while we're working with them
hwmon: (f71882fg) Code cleanup
hwmon: (f71882fg) Use strict_stro(l|ul) instead of simple_strto$1
... -
Add support for the Texas Instruments TMP105 temperature sensor
device.Signed-off-by: Shubhrajyoti Datta
Acked-by: Jonathan Cameron
Signed-off-by: Jean Delvare -
Read only one of the GPIO pins as an analog voltage. The ADC can be
switched to a different GPIO pin at runtime, but this is not supported.Previously, this driver would report the analog voltage of the currently
selected GPIO pin as all three GPIO voltages: in9_input, in10_input and
in11_input.Signed-off-by: Ira W. Snyder
Signed-off-by: Jean Delvare
Cc: stable@kernel.org -
Add support for the hardware monitoring capabilities of the SCH5127
chip to the dme1737 driver.Signed-off-by: Juerg Haefliger
Signed-off-by: Jean Delvare
Tested-by: Jeff Rickman -
Only stop the chip at driver exit if it was stopped when driver was
loaded. Leave it running otherwise.Also restore the device configuration if probe failed, to not leave
the system in a dangling state.Signed-off-by: Jean Delvare
Cc: Steven King -
Suspend and resume functions shouldn't overwrite the configuration
register. They should only alter the one bit they have to touch.Also don't assume that register reads and writes always succeed.
Handle errors properly, shall they happen.Signed-off-by: Jean Delvare
Cc: Steven King -
Fixes from my driver review:
http://lists.lm-sensors.org/pipermail/lm-sensors/2010-March/028051.htmlOnly the small changes are in there, more important changes will come
later separately as time permits.* Drop the remnants of the now gone detect function
* The TMP102 has no known compatible chip
* Include the right header files
* Clarify why byte swapping of register values is needed
* Strip resolution info bit from temperature register value
* Set cache lifetime to 1/3 second
* Don't arbitrarily reject limit values; clamp as needed
* Make limit writing unconditional
* Don't check for transaction types the driver doesn't use
* Properly check for error when setting configuration
* Report error on failed probe
* Make the driver load automatically where needed
* Various other minor fixesSigned-off-by: Jean Delvare
Cc: Steven King -
Driver for the TI TMP102.
The TI TMP102 is similar to the LM75. It differs from the LM75 by
having a 16-bit conf register and the temp registers have a minimum
resolution of 12 bits; the extended conf register can select 13-bit
resolution (which this driver does) and also change the update rate
(which this driver currently doesn't use).[JD: Fix tmp102_exit tag, must be __exit, not __init.]
Signed-off-by: Steven King
Signed-off-by: Jean Delvare -
Provides support for the EMC1403 thermal sensor. Only reporting of values
is supported. The various Moorestown specific extras to do with thermal
alerts and the like are not in this version of the driver.Considerably edited and tidied up by Alan Cox, plus fixes and detection
bits from Jean Delvare.Signed-off-by: Kalhan Trisal
Signed-off-by: Alan Cox
Signed-off-by: Jean Delvare -
The Apple SMC uses a systematic labeling scheme for the hardware
temperature sensors. This scheme is currently hidden from
userland. Since the sensor set, and consequently the numbering,
differs between models, an extensive database of configurations is
required for an application such as fan control. This patch adds the
SMC labels to the hwmon sysfs interface, allowing applications to use
the sensors more intelligibly.[rydberg@euromail.se: fixed error handling]
Signed-off-by: Alex Murray
Signed-off-by: Henrik Rydberg
Signed-off-by: Jean Delvare -
This patch adds generic support for the MacBook Pro 7 family
based on the 7,1 model.Signed-off-by: Henrik Rydberg
Signed-off-by: Jean Delvare -
This patch adds generic support for the MacBook Pro 6 family
based on the 6,2 model.[rydberg@euromail.se: patch cleanup]
Signed-off-by: Bernhard Froemel
Signed-off-by: Henrik Rydberg
Signed-off-by: Jean Delvare -
The MacBookPro 5,3 model has two fans, whereas the 5,4 model has
only one. This patch adds explicit support for the 5,3 and 5,4 models.Signed-off-by: Henrik Rydberg
Signed-off-by: Jean Delvare -
Signed-off-by: Andre Prendel
Acked-by: Hans de Goede
Signed-off-by: Jean Delvare -
Replace octal representation of file permissions by the corresponding
constants.Signed-off-by: Andre Prendel
Acked-by: Hans de Goede
Signed-off-by: Jean Delvare -
Based on earlier work by Ira W. Snyder.
The adm1031 chip is capable of using a runtime configurable sampling rate,
using the fan filter register. Add support for reading and setting the
update rate via sysfs.Signed-off-by: Jean Delvare
Acked-by: Ira W. Snyder -
The update_rate attribute can be used by drivers to let userspace choose
the update rate of the chip, if it is configurable.Signed-off-by: Ira W. Snyder
Signed-off-by: Jean Delvare -
The lm90 driver programs the sensor chip to update its readings at 2 Hz
(500 ms between readings). However, the driver only does reads from the
chip at intervals of 2 * HZ (2000 ms between readings). Change the driver
update rate to the programmed update rate.Signed-off-by: Ira W. Snyder
Signed-off-by: Jean Delvare -
Acquire the I/O region for the Super I/O chip while we're working on it.
Signed-off-by: Giel van Schijndel
Cc: Hans de Goede
Signed-off-by: Jean Delvare -
Some code cleanup: properly use previously defined functions, rather
than duplicating their code.Signed-off-by: Giel van Schijndel
Cc: Hans de Goede
Signed-off-by: Jean Delvare -
Use the strict_strol and strict_stroul functions instead of simple_strol
and simple_stroul respectively in sysfs functions.Signed-off-by: Giel van Schijndel
Acked-by: Hans de Goede
Signed-off-by: Jean Delvare -
Fixed several coding style issues.
Signed-off-by: Giel van Schijndel
Acked-by: Hans de Goede
Signed-off-by: Jean Delvare -
The LM64 appears to be an LM63 with added GPIO lines. Add support for the
hwmon functionality - GPIO can be added at some later stage if someone
has a need for them.Signed-off-by: Matthew Garrett
Signed-off-by: Jean Delvare -
When the user passes the kernel parameter acpi_enforce_resources=lax,
the ACPI resources are no longer protected, so a native driver can
make use of them. In that case, we do not want the asus_atk0110 to be
loaded. Unfortunately, this driver loads automatically due to its
MODULE_DEVICE_TABLE, so the user ends up with two drivers loaded for
the same device - this is bad.So I suggest that we prevent the asus_atk0110 driver from loading if
acpi_enforce_resources=lax.Signed-off-by: Jean Delvare
Acked-by: Luca Tettamanti
Cc: Len Brown -
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] fill out file list in s390 MAINTAINERS entry
[S390] Add support for LZO-compressed kernels.
[S390] cmm: get rid of CMM_PROC config option
[S390] cmm: remove superfluous EXPORT_SYMBOLs plus cleanups
[S390] dasd: unit check handling during internal cio I/O
[S390] cio: unit check handling during internal I/O
[S390] ccwgroup: add locking around drvdata access
[S390] cio: remove stsch
[S390] spp: remove KVM_AWARE_CMF config option
[S390] kprobes: forbid probing of stnsm/stosm/epsw
[S390] spp: fix compilation for CONFIG_32BIT
[S390] atomic: implement atomic64_dec_if_positive
[S390] cmm: fix crash on module unload -
* 'sfi-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-sfi-2.6:
SFI: add sysfs interface for SFI tables.
SFI: add support for v0.81 spec -
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (27 commits)
Btrfs: add more error checking to btrfs_dirty_inode
Btrfs: allow unaligned DIO
Btrfs: drop verbose enospc printk
Btrfs: Fix block generation verification race
Btrfs: fix preallocation and nodatacow checks in O_DIRECT
Btrfs: avoid ENOSPC errors in btrfs_dirty_inode
Btrfs: move O_DIRECT space reservation to btrfs_direct_IO
Btrfs: rework O_DIRECT enospc handling
Btrfs: use async helpers for DIO write checksumming
Btrfs: don't walk around with task->state != TASK_RUNNING
Btrfs: do aio_write instead of write
Btrfs: add basic DIO read/write support
direct-io: do not merge logically non-contiguous requests
direct-io: add a hook for the fs to provide its own submit_bio function
fs: allow short direct-io reads to be completed via buffered IO
Btrfs: Metadata ENOSPC handling for balance
Btrfs: Pre-allocate space for data relocation
Btrfs: Metadata ENOSPC handling for tree log
Btrfs: Metadata reservation for orphan inodes
Btrfs: Introduce global metadata reservation
... -
Commit e9fb7631ebcd ("cpu-hotplug: introduce cpu_notify(),
__cpu_notify(), cpu_notify_nofail()") also introduced this annoying
warning:kernel/cpu.c:157: warning: 'cpu_notify_nofail' defined but not used
when CONFIG_HOTPLUG_CPU wasn't set.
So move that helper inside the #ifdef CONFIG_HOTPLUG_CPU region, and
simplify it while at it.Signed-off-by: Linus Torvalds
-
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6:
[SCSI] fix race in scsi_target_reap
[SCSI] aacraid: Eliminate use after free
[SCSI] arcmsr: Support HW reset for EH and polling scheme for scsi device
[SCSI] bfa: fix system crash when reading sysfs fc_host statistics
[SCSI] iscsi_tcp: remove sk_sleep check
[SCSI] ipr: improve interrupt service routine performance
[SCSI] ipr: set the data list length in the request control block
[SCSI] ipr: fix a register read to use the correct address for 64 bit adapters
[SCSI] ipr: include the resource path in the IOA status area structure
[SCSI] ipr: implement fixes for 64 bit adapter support
[SCSI] be2iscsi: correct return value in mgmt_invalidate_icds()
