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2011-05-23ALSA: hda - Fix auto-mic detection in Conexant codec-parserTakashi Iwai
Fix the auto-mic detection for Cxt auto-parser due to off-by-one missing initialization. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-05-23splice: add wakeup_pipe_readers()Namhyung Kim
Add and use wakeup_pipe_readers() to consolidate duplicated codes. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-05-23RDMA/ucma: Add .nodename/.mode to tell userspace where to create device nodeRoland Dreier
We want udev to create a device node under /dev/infiniband with permission 0666 for rdma_cm, so add that info to our struct miscdevice. Signed-off-by: Roland Dreier <roland@purestorage.com> Acked-by: Sean Hefty <sean.hefty@intel.com>
2011-05-23blk-cgroup: Initialize ioc->cgroup_changed at ioc creation timeVivek Goyal
If we don't explicitly initialize it to zero, CFQ might think that cgroup of ioc has changed and it generates lots of unnecessary calls to call_for_each_cic(changed_cgroup). Fix it. cfq_get_io_context() cfq_ioc_set_cgroup() call_for_each_cic(ioc, changed_cgroup) Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-05-23Btrfs: using rcu lock in the reader side of devices listXiao Guangrong
fs_devices->devices is only updated on remove and add device paths, so we can use rcu to protect it in the reader side Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Btrfs: drop unnecessary device lockXiao Guangrong
Drop device_list_mutex for the reader side on clone_fs_devices and btrfs_rm_device pathes since the fs_info->volume_mutex can ensure the device list is not updated btrfs_close_extra_devices is the initialized path, we can not add or remove device at this time, so we can simply drop the mutex safely, like other initialized function does(add_missing_dev, __find_device, __btrfs_open_devices ...). Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Btrfs: fix the race between remove dev and alloc chunkXiao Guangrong
On remove device path, it updates device->dev_alloc_list but does not hold chunk lock Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Btrfs: fix the race between reading and updating devicesXiao Guangrong
On btrfs_congested_fn and __unplug_io_fn paths, we should hold device_list_mutex to avoid remove/add device path to update fs_devices->devices On __btrfs_close_devices and btrfs_prepare_sprout paths, the devices in fs_devices->devices or fs_devices->devices is updated, so we should hold the mutex to avoid the reader side to reach them Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Btrfs: fix bh leak on __btrfs_open_devices pathXiao Guangrong
'bh' is forgot to release if no error is detected Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Btrfs: fix unsafe usage of merge_stateXiao Guangrong
merge_state can free the current state if it can be merged with the next node, but in set_extent_bit(), after merge_state, we still use the current extent to get the next node and cache it into cached_state Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Btrfs: allocate extent state and check the result properlyXiao Guangrong
It doesn't allocate extent_state and check the result properly: - in set_extent_bit, it doesn't allocate extent_state if the path is not allowed wait - in clear_extent_bit, it doesn't check the result after atomic-ly allocate, we trigger BUG_ON() if it's fail - if allocate fail, we trigger BUG_ON instead of returning -ENOMEM since the return value of clear_extent_bit() is ignored by many callers Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23fs/btrfs: Add missing btrfs_free_pathJulia Lawall
Btrfs_alloc_path should be matched with btrfs_free_path in error-handling code. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ local idexpression struct btrfs_path * x; expression ra,rb; position p1,p2; @@ x = btrfs_alloc_path@p1(...) ... when != btrfs_free_path(x,...) when != if (...) { ... btrfs_free_path(x,...) ...} when != x = ra if(...) { ... when != x = rb when forall when != btrfs_free_path(x,...) \(return <+...x...+>; \| return@p2...; \) } @script:python@ p1 << r.p1; p2 << r.p2; @@ cocci.print_main("alloc",p1) cocci.print_secs("return",p2) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Btrfs: check return value of btrfs_inc_extent_ref()Tsutomu Itoh
If return value of btrfs_inc_extent_ref() is not 0, BUG() is called. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Btrfs: return error to caller if read_one_inode() failsTsutomu Itoh
When read_one_inode() fails, error code is returned to caller instead of BUG_ON(). Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Btrfs: BUG_ON is deleted from the caller of btrfs_truncate_item & ↵Tsutomu Itoh
btrfs_extend_item Currently, btrfs_truncate_item and btrfs_extend_item returns only 0. So, the check by BUG_ON in the caller is unnecessary. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Btrfs: return error code to caller when btrfs_del_item failsTsutomu Itoh
The error code is returned instead of calling BUG_ON when btrfs_del_item returns the error. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Btrfs: return error code to caller when btrfs_previous_item failsTsutomu Itoh
The error code is returned instead of calling BUG_ON when btrfs_previous_item returns the error. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23btrfs: fix typo 'testeing' -> 'testing'Sergei Trofimovich
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23btrfs: typo: 'btrfS' -> 'btrfs'Sergei Trofimovich
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23btrfs: don't spin in shrink_delalloc if there is nothing to freeSergei Trofimovich
Observed as a large delay when --mixed filesystem is filled up. Test example: 1. create tiny --mixed FS: $ dd if=/dev/zero of=2G.img seek=$((2048 * 1024 * 1024 - 1)) count=1 bs=1 $ mkfs.btrfs --mixed 2G.img $ mount -oloop 2G.img /mnt/ut/ 2. Try to fill it up: $ dd if=/dev/urandom of=10M.file bs=10240 count=1024 $ seq 1 256 | while read file_no; do echo $file_no; time cp 10M.file ${file_no}.copy; done Up to '200.copy' it goes fast, but when disk fills-up each -ENOSPC message takes 3 seconds to pop-up _every_ ENOSPC (and in usermode linux it's even more: 30-60 seconds!). (Maybe, time depends on kernel's timer resolution). No IO, no CPU load, just rescheduling. Some debugging revealed busy spinning in shrink_delalloc. Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> Reviewed-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slub: Deal with hyperthetical case of PAGE_SIZE > 2M slub: Remove node check in slab_free slub: avoid label inside conditional slub: Make CONFIG_DEBUG_PAGE_ALLOC work with new fastpath slub: Avoid warning for !CONFIG_SLUB_DEBUG slub: Remove CONFIG_CMPXCHG_LOCAL ifdeffery slub: Move debug handlign in __slab_free slub: Move node determination out of hotpath slub: Eliminate repeated use of c->page through a new page variable slub: get_map() function to establish map of free objects in a slab slub: Use NUMA_NO_NODE in get_partial slub: Fix a typo in config name
2011-05-23btrfs: Delete unused version.sh script.Jamey Sharp
In 2008, commit b4f6c45dfbf84f47c21f73f6370ad1292b0627fd dropped the use of fs/btrfs/version.sh, but left the script behind. Kill it. Commit by Jamey Sharp and Josh Triplett. Signed-off-by: Jamey Sharp <jamey@minilop.net> Signed-off-by: Josh Triplett <josh@joshtriplett.org> Cc: Chris Mason <chris.mason@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23btrfs: Ensure the tree search ioctl returns the right number of recordsHugo Mills
Btrfs's tree search ioctl has a field to indicate that no more than a given number of records should be returned. The ioctl doesn't honour this, as the tested value is not incremented until the end of the copy_to_sk function. This patch removes an unnecessary local variable, and updates the num_found counter as each key is found in the tree. Signed-off-by: Hugo Mills <hugo@carfax.org.uk> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23BTRFS: Remove unused node_lockAndi Kleen
240f62c8756 replaced the node_lock with rcu_read_lock, but forgot to remove the actual lock in the data structure. Remove it here. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-05-23Merge branches 'consolidate-clksrc', 'consolidate-flash', ↵Russell King
'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate
2011-05-23ARM: bcmring: convert to use sp804 clockeventsRussell King
bcmring has a set of four sp804 timers incorporated, yet it has its own copy of the sp804 code. Convert its clockevent implementation to the standard sp804 support code. Cc: Jiandong Zheng <jdzheng@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23ARM: bcmring: convert to sp804 clocksourceRussell King
bcmring has a set of four sp804 timers incorporated, yet it has its own copy of the sp804 code. Convert its clocksource implementation to the standard sp804 support code. Cc: Jiandong Zheng <jdzheng@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23ARM: 6912/1: bcmring: Add clkdev table in init_earlyJiandong Zheng
Move adding clkdev table to init_early to make sure the common sp804 clockevents can be initialized properly. Signed-off-by: Jiandong Zheng <jdzheng@broadcom.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clockevents: ARM sp804: obtain sp804 timer rate via clksRussell King
This allows platforms to specify the rate of the SP804 clockevent via the clk subsystem. While ARM boards clock these at 1MHz, BCMRing also has SP804 timers but are clocked at different rates. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clockevents: ARM sp804: allow clockevent name to be specifiedRussell King
This allows platforms to specify the clcokevent name upon registration. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: ARM sp804: obtain sp804 timer rate via clksRussell King
This allows platforms to specify the rate of the SP804 clocksource via the clk subsystem. While ARM boards clock these at 1MHz, BCMRing also has SP804 timers but are clocked at different rates. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: ARM sp804: allow clocksource name to be specifiedRussell King
This allows platforms to specify the clocksource name upon registration, which is necessary should they wish to register more than one sp804 clocksource. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert OMAP1 to 32-bit down counting clocksourceRussell King
Convert the OMAP1 32-bit down counting clocksource to the generic clocksource infrastructure. Tested-by: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert MXS timrotv2 to 32-bit down counting clocksourceRussell King
Convert the MXS timrotv2 32-bit down counting clocksource to the generic clocksource infrastructure. Cc: Sascha Hauer <kernel@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert SPEAr platforms 16-bit up counting clocksourceRussell King
Convert SPEAr platforms 16-bit up counting clocksource, which requires a 16-bit register access read rather than 32-bit. Acked-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert Integrator/AP 16-bit down counting clocksourceRussell King
Convert the Integrator/AP 16-bit down-counting clocksource to the generic clocksource infrastructure. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert W90x900 24-bit down counting clocksourceRussell King
Convert the W90x900 24-bit down-counting clocksource to the generic mmio clocksource infrastructure Acked-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert ARM 32-bit down counting clocksourcesRussell King
Convert SP804, MXC, Nomadik and Orion 32-bit down-counting clocksources to generic mmio clocksource infrastructure. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Alessandro Rubini <rubini@unipv.it> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Lennert Buytenhek <kernel@wantstofly.org> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert ARM 32-bit up counting clocksourcesRussell King
Convert ixp4xx, lpc32xx, mxc, netx, pxa, sa1100, tcc8k, tegra and u300 to use the generic mmio clocksource recently introduced. Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Krzysztof Halasa <khc@pm.waw.pl> Acked-by: Eric Miao <eric.y.miao@gmail.com> Acked-by: "Hans J. Koch" <hjk@hansjkoch.de> Acked-by: Colin Cross <ccross@android.com> Cc: Erik Gilling <konkers@android.com> Cc: Olof Johansson <olof@lixom.net> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: add common mmio clocksourceRussell King
Add a generic mmio clocksource, covering both 32-bit and 16-bit register access sizes, for up or down counters. This can be used to easily create clocksources for simple counter-based implementations. Cc: Alessandro Rubini <rubini@unipv.it> Cc: Colin Cross <ccross@android.com> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Erik Gilling <konkers@android.com> Acked-by: "Hans J. Koch" <hjk@hansjkoch.de> Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Krzysztof Halasa <khc@pm.waw.pl> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Linus Walleij <linus.walleij@stericsson.com> Cc: linux-omap@vger.kernel.org Acked-by: Nicolas Pitre <nico@fluxnic.net> Cc: Olof Johansson <olof@lixom.net> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Viresh Kumar <viresh.kumar@st.com> Cc: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23ARM: update sa1100 to reflect PXA updatesRussell King
Update sa1100 clockevents code to reflect what its later derivative does with clockevents_calc_mult_shift(). Use OSSR_M* constants too. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23ARM: omap1: convert to using readl/writel instead of volatile structRussell King
Tested-by: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23ARM: omap1: delete useless interrupt handlerRussell King
The OMAP1 clocksource interrupt handler just increments a variable which otherwise isn't used, so this seems to be unnecessary. Tony Lindgren confirms, so lets remove it. Acked-by: Kevin Hilman <khilman@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23ARM: s5p: consolidate selection of timer registerRussell King
s5p duplicates the runtime selection of the timer register three times. Move this out into a separate function. FIXME: It is unclear whether this code needs to support true runtime selection of the timer register, or whether it can be selected once at init time. Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23Merge branch 'slab/next' into for-linusPekka Enberg
Conflicts: mm/slub.c
2011-05-23davinci: move DM64XX_VDD3P3V_PWDN to devices.cManjunath Hadli
Move the definition of DM64XX_VDD3P3V_PWDN from hardware.h to devices.c since it is used only there. This also helps rid hardware.h of platform private stuff. Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2011-05-23Merge branch 'hwmon-for-linus' of ↵Linus Torvalds
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: (coretemp) Fix checkpatch errors hwmon: Remove pkgtemp driver hwmon: (coretemp) Merge pkgtemp with coretemp hwmon: (pmbus) Add support for Analog Devices ADM1275 hwmon: (pmbus) Support for TI UCD90xxx series Sequencer and System Health Controllers hwmon: (pmbus) Add support for TI UCD9200 series of PWM System Controllers hwmon: (pmbus) Use device specific function to read fan configuration hwmon: (pmbus) Expand scope of device specific get_status function hwmon: (pmbus) Introduce infrastructure to detect sensors and limit registers hwmon: Driver for MAX16065 System Manager and compatibles hwmon: (sht15) add support for CRC validation hwmon: (sht15) add support for the status register hwmon: (sht15) clean-up the probe function hwmon: (sht15) general code clean-up hwmon: Add support for MAX6642
2011-05-23Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf tools: Fix sample size bit operations perf tools: Fix ommitted mmap data update on remap watchdog: Change the default timeout and configure nmi watchdog period based on watchdog_thresh watchdog: Disable watchdog when thresh is zero watchdog: Only disable/enable watchdog if neccessary watchdog: Fix rounding bug in get_sample_period() perf tools: Propagate event parse error handling perf tools: Robustify dynamic sample content fetch perf tools: Pre-check sample size before parsing perf tools: Move evlist sample helpers to evlist area perf tools: Remove junk code in mmap size handling perf tools: Check we are able to read the event size on mmap
2011-05-23ARM: 6939/1: fix missing 'cpu_relax()' declarationMarc Zyngier
ARM build fails with the following symptom: CC arch/arm/kernel/asm-offsets.s In file included from include/linux/seqlock.h:29, from include/linux/time.h:8, from include/linux/timex.h:56, from include/linux/sched.h:57, from arch/arm/kernel/asm-offsets.c:13: include/linux/spinlock.h: In function 'spin_unlock_wait': include/linux/spinlock.h:360: error: implicit declaration of function 'cpu_relax' make[1]: *** [arch/arm/kernel/asm-offsets.s] Error 1 Fix it by including <asm/processor.h>. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) b43: fix comment typo reqest -> request Haavard Skinnemoen has left Atmel cris: typo in mach-fs Makefile Kconfig: fix copy/paste-ism for dell-wmi-aio driver doc: timers-howto: fix a typo ("unsgined") perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c md, raid5: Fix spelling error in comment ('Ofcourse' --> 'Of course'). treewide: fix a few typos in comments regulator: change debug statement be consistent with the style of the rest Revert "arm: mach-u300/gpio: Fix mem_region resource size miscalculations" audit: acquire creds selectively to reduce atomic op overhead rtlwifi: don't touch with treewide double semicolon removal treewide: cleanup continuations and remove logging message whitespace ath9k_hw: don't touch with treewide double semicolon removal include/linux/leds-regulator.h: fix syntax in example code tty: fix typo in descripton of tty_termios_encode_baud_rate xtensa: remove obsolete BKL kernel option from defconfig m68k: fix comment typo 'occcured' arch:Kconfig.locks Remove unused config option. treewide: remove extra semicolons ...
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