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2012-07-30Merge tag 'dm-3.6-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm Pull device-mapper updates from Alasdair G Kergon: - Flip the thin target into new read-only or failed modes if errors are detected; - Handle chunk sizes that are not powers of two in the snapshot and thin targets; - Provide a way for userspace to avoid replacing an already-loaded multipath hardware handler while booting; - Reduce dm_thin_endio_hook slab size to avoid allocation failures; - Numerous small changes and cleanups to the code. * tag 'dm-3.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: (63 commits) dm thin: commit before gathering status dm thin: add read only and fail io modes dm thin metadata: introduce dm_pool_abort_metadata dm thin metadata: introduce dm_pool_metadata_set_read_only dm persistent data: introduce dm_bm_set_read_only dm thin: reduce number of metadata commits dm thin metadata: add dm_thin_changed_this_transaction dm thin metadata: add format option to dm_pool_metadata_open dm thin metadata: tidy up open and format error paths dm thin metadata: only check incompat features on open dm thin metadata: remove duplicate pmd initialisation dm thin metadata: remove create parameter from __create_persistent_data_objects dm thin metadata: move __superblock_all_zeroes to __open_or_format_metadata dm thin metadata: remove nr_blocks arg from __create_persistent_data_objects dm thin metadata: split __open or format metadata dm thin metadata: use struct dm_pool_metadata members in __open_or_format_metadata dm thin metadata: zero unused superblock uuid dm thin metadata: lift __begin_transaction out of __write_initial_superblock dm thin metadata: move dm_commit_pool_metadata into __write_initial_superblock dm thin metadata: factor out __write_initial_superblock ...
2012-07-30Merge branch 'for-linus-for-3.6-rc1' of ↵Linus Torvalds
git://git.linaro.org/people/mszyprowski/linux-dma-mapping Pull DMA-mapping updates from Marek Szyprowski: "Those patches are continuation of my earlier work. They contains extensions to DMA-mapping framework to remove limitation of the current ARM implementation (like limited total size of DMA coherent/write combine buffers), improve performance of buffer sharing between devices (attributes to skip cpu cache operations or creation of additional kernel mapping for some specific use cases) as well as some unification of the common code for dma_mmap_attrs() and dma_mmap_coherent() functions. All extensions have been implemented and tested for ARM architecture." * 'for-linus-for-3.6-rc1' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping: ARM: dma-mapping: add support for DMA_ATTR_SKIP_CPU_SYNC attribute common: DMA-mapping: add DMA_ATTR_SKIP_CPU_SYNC attribute ARM: dma-mapping: add support for dma_get_sgtable() common: dma-mapping: introduce dma_get_sgtable() function ARM: dma-mapping: add support for DMA_ATTR_NO_KERNEL_MAPPING attribute common: DMA-mapping: add DMA_ATTR_NO_KERNEL_MAPPING attribute common: dma-mapping: add support for generic dma_mmap_* calls ARM: dma-mapping: fix error path for memory allocation failure ARM: dma-mapping: add more sanity checks in arm_dma_mmap() ARM: dma-mapping: remove custom consistent dma region mm: vmalloc: use const void * for caller argument scatterlist: add sg_alloc_table_from_pages function
2012-07-30Merge branch 'hwmon-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging Pull a howmon update from Jean Delvare. * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon: struct x86_cpu_id arrays can be __initconst
2012-07-30Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull Exynos DRM changes from Dave Airlie: "So I totally missed Inki's pull request for -next, its fully exynos self contained." (I took just the actual commits, not Dave's two extraneous merges) * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (30 commits) drm/exynos: fixed exception to page allocation failure drm/exynos: use __free_page() to deallocate memory drm/exynos: fixed a comment to gem size. drm/exynos: removed unnecessary variable drm/exynos: do not release memory region from exporter. drm/exynos: set buffer type from exporter. drm/exynos: use alloc_page() to allocate pages. drm/exynos: fixed build warning. drm/exynos: fixed edid data setting at vidi connection request drm/exynos: check if raw edid data is fake or not for test drm/exynos: set edid fake data only for test. drm/exynos: removed unnecessary declaration. drm/exynos: fix buffer pitch calculation drm/exynos: check for null in return value of dma_buf_map_attachment() drm/exynos: return NULL if exynos_pages_to_sg fails drm/exynos: Use devm_* functions in exynos_mixer.c drm/exynos: Use devm_* functions in exynos_hdmi.c drm/exynos: Use devm_* functions in exynos_drm_fimd.c drm/exynos: Add missing static storage class specifier drm/exynos: add property for crtc mode ...
2012-07-30Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "A new driver for FT5x06 based EDT displays and a couple of other driver changes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: synaptics - handle out of bounds values from the hardware Input: wacom - add support to Cintiq 22HD Input: add driver for FT5x06 based EDT displays
2012-07-30Merge tag 'hwmon-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: - Fix timing problems in applesmc driver - Improve device removal in jc42 driver - Fix build warning in acp_power_meter driver * tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (applesmc) Decode and act on read/write status codes hwmon: (jc42) Don't reset hysteresis on device removal hwmon: (jc42) Simplify hysteresis mask hwmon: (acpi_power_meter) Fix build warning
2012-07-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edacLinus Torvalds
Pull EDAC patches from Mauro Carvalho Chehab: - the second part of the EDAC rework: - Add the sysfs nodes that exports the real memory layout, instead of the fake one (needed to properly represent Intel memory controllers since 2002) - convert EDAC MC to use "struct device" instead of creating the sysfs nodes via the kobj API - adds a tracepoint to represent memory errors - some cleanup patches - some fixes at i5000, i5400 and EDAC core - a new EDAC driver for Caldera. * git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac: (33 commits) edac i5000, i5400: fix pointer math in i5000_get_mc_regs() edac: allow specifying the error count with fake_inject edac: add support for Calxeda highbank L2 cache ecc edac: add support for Calxeda highbank memory controller edac: create top-level debugfs directory sb_edac: properly handle error count i7core_edac: properly handle error count edac: edac_mc_handle_error(): add an error_count parameter edac: remove arch-specific parameter for the error handler amd64_edac: Don't pass driver name as an error parameter edac_mc: check for allocation failure in edac_mc_alloc() edac: Increase version to 3.0.0 edac_mc: Cleanup per-dimm_info debug messages edac: Convert debugfX to edac_dbg(X, edac: Use more normal debugging macro style edac: Don't add __func__ or __FILE__ for debugf[0-9] msgs Edac: Add ABI Documentation for the new device nodes edac: move documentation ABI to ABI/testing/sysfs-devices-edac i7core_edac: change the mem allocation scheme to make Documentation/kobject.txt happy edac: change the mem allocation scheme to make Documentation/kobject.txt happy ...
2012-07-30Merge tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds
Pull arm-soc soc updates from Olof Johansson: "This is the second batch of SoC updates for the 3.6 merge window, containing parts that arrived close to the merge window opening and thus needed to sit in linux-next for a while. Most contents is updates of Renesas shmobile, with a couple of Samsung Exynos patches in the mix." * tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits) ARM: S3C64XX: Add header file protection macros in pm-core.h [CPUFREQ] EXYNOS5250: Add support max 1.7GHz for EXYNOS5250 ARM: EXYNOS: Add G2D related clock entries for SMDK4X12 ARM: EXYNOS: Move G2D clock entries to clock-exynos4210.c file ARM: shmobile: Fix build problem in pm-sh7372.c for unusual .config ARM: shmobile: Take cpuidle dependencies into account correctly ARM: mach-shmobile: sh7377 generic board support via DT ARM: mach-shmobile: r8a7740 generic board support via DT ARM: shmobile: sh7372: completely switch over to using pm-rmobile API ARM: shmobile: ap4evb: switch to using pm-rmobile API ARM: shmobile: mackerel: switch to using pm-rmobile API ARM: shmobile: sh7372: add pm-rmobile domain support ARM: shmobile: r8a7740: add A4LC pm domain support ARM: shmobile: r8a7740: add A3SP pm domain support ARM: shmobile: r8a7740: add A4S pm domain support ARM: shmobile: r8a7740: fixup: MSEL1CR 7bit control ARM: shmobile: soc-core: add R-mobile PM domain common APIs ARM: shmobile: sh7372 A3SM CPUIdle support ARM: shmobile: Use INTCA with sh7372 A3SM power domain ARM: mach-shmobile: Convert sh_clk_mstp32_register to sh_clk_mstp_register ...
2012-07-30Merge tag 'firewire-updates' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 Pull firewire updates from Stefan Richter: - Small fixes and optimizations. - A new sysfs attribute to tell local and remote nodes apart. Useful to set special permissions/ ownership of local nodes' /dev/fw*, to start daemons on them (for diagnostics, management, AV targets, VersaPHY initiator or targets...), to pick up their GUID to use it as GUID of an SBP2 target instance, and of course for informational purposes. * tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: firewire: core: document is_local sysfs attribute firewire: core: add is_local sysfs device attribute firewire: ohci: initialize multiChanMode bits after reset firewire: core: fix multichannel IR with buffers larger than 2 GB firewire: ohci: sanity-check MMIO resource firewire: ohci: lazy bus time initialization firewire: core: allocate the low memory region firewire: core: make address handler length 64 bits
2012-07-30Merge branch 'for-3.6' of git://gitorious.org/linux-pwm/linux-pwmLinus Torvalds
Pull PWM subsystem from Thierry Reding: "The new PWM subsystem aims at collecting all implementations of the legacy PWM API and to eventually replace it completely. The subsystem has been in development for over half a year now and many drivers have already been converted. It has been in linux-next for a couple of weeks and there have been no major issues so I think it is ready for inclusion in your tree." Arnd Bergmann <arnd@arndb.de>: "Very much Ack on the new subsystem. It uses the interface declarations as the previously separate pwm drivers, so nothing changes for now in the drivers using it, although it enables us to change those more easily in the future if we want to. This work is also one of the missing pieces that are required to eventually build ARM kernels for multiple platforms, which is currently prohibited (amongs other things) by the fact that you cannot have more than one driver exporting the pwm functions." Tested-and-acked-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Philip, Avinash <avinashphilip@ti.com> # TI's AM33xx platforms Acked-By: Alexandre Pereira da Silva <aletes.xgr@gmail.com> # LPC32XX Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sachin Kamat <sachin.kamat@linaro.org> Fix up trivial conflicts with other cleanups and DT updates. * 'for-3.6' of git://gitorious.org/linux-pwm/linux-pwm: (36 commits) pwm: pwm-tiehrpwm: PWM driver support for EHRPWM pwm: pwm-tiecap: PWM driver support for ECAP APWM pwm: fix used-uninitialized warning in pwm_get() pwm: add lpc32xx PWM support pwm_backlight: pass correct brightness to callback pwm: Use pr_* functions in pwm-samsung.c file pwm: Convert pwm-samsung to use devm_* APIs pwm: Convert pwm-tegra to use devm_clk_get() pwm: pwm-mxs: Return proper error if pwmchip_remove() fails pwm: pwm-bfin: Return proper error if pwmchip_remove() fails pwm: pxa: Propagate pwmchip_remove() error pwm: Convert pwm-pxa to use devm_* APIs pwm: Convert pwm-vt8500 to use devm_* APIs pwm: Convert pwm-imx to use devm_* APIs pwm: Conflict with legacy PWM API pwm: pwm-mxs: add pinctrl support pwm: pwm-mxs: use devm_* managed functions pwm: pwm-mxs: use global reset function stmp_reset_block pwm: pwm-mxs: encode soc name in compatible string pwm: Take over maintainership of the PWM subsystem ...
2012-07-30common: dma-mapping: introduce dma_get_sgtable() functionMarek Szyprowski
This patch adds dma_get_sgtable() function which is required to let drivers to share the buffers allocated by DMA-mapping subsystem. Right now the driver gets a dma address of the allocated buffer and the kernel virtual mapping for it. If it wants to share it with other device (= map into its dma address space) it usually hacks around kernel virtual addresses to get pointers to pages or assumes that both devices share the DMA address space. Both solutions are just hacks for the special cases, which should be avoided in the final version of buffer sharing. To solve this issue in a generic way, a new call to DMA mapping has been introduced - dma_get_sgtable(). It allocates a scatter-list which describes the allocated buffer and lets the driver(s) to use it with other device(s) by calling dma_map_sg() on it. This patch provides a generic implementation based on virt_to_page() call. Architectures which require more sophisticated translation might provide their own get_sgtable() methods. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-07-30common: dma-mapping: add support for generic dma_mmap_* callsMarek Szyprowski
Commit 9adc5374 ('common: dma-mapping: introduce mmap method') added a generic method for implementing mmap user call to dma_map_ops structure. This patch converts ARM and PowerPC architectures (the only providers of dma_mmap_coherent/dma_mmap_writecombine calls) to use this generic dma_map_ops based call and adds a generic cross architecture definition for dma_mmap_attrs, dma_mmap_coherent, dma_mmap_writecombine functions. The generic mmap virt_to_page-based fallback implementation is provided for architectures which don't provide their own implementation for mmap method. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-07-30hwmon: struct x86_cpu_id arrays can be __initconstJan Beulich
... as being referenced from __init code only. Signed-off-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-07-29Merge branch 'next' into for-linusDmitry Torokhov
Prepare second set of changes for 3.6 merge window.
2012-07-29Merge branch 'devel'Mauro Carvalho Chehab
* devel: (33 commits) edac i5000, i5400: fix pointer math in i5000_get_mc_regs() edac: allow specifying the error count with fake_inject edac: add support for Calxeda highbank L2 cache ecc edac: add support for Calxeda highbank memory controller edac: create top-level debugfs directory sb_edac: properly handle error count i7core_edac: properly handle error count edac: edac_mc_handle_error(): add an error_count parameter edac: remove arch-specific parameter for the error handler amd64_edac: Don't pass driver name as an error parameter edac_mc: check for allocation failure in edac_mc_alloc() edac: Increase version to 3.0.0 edac_mc: Cleanup per-dimm_info debug messages edac: Convert debugfX to edac_dbg(X, edac: Use more normal debugging macro style edac: Don't add __func__ or __FILE__ for debugf[0-9] msgs Edac: Add ABI Documentation for the new device nodes edac: move documentation ABI to ABI/testing/sysfs-devices-edac i7core_edac: change the mem allocation scheme to make Documentation/kobject.txt happy edac: change the mem allocation scheme to make Documentation/kobject.txt happy ...
2012-07-28Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linuxLinus Torvalds
Pull embedded i2c changes from Wolfram Sang: "Changes for the "embedded" part of the I2C subsystem: - lots of devicetree conversions of drivers (and preparations for that) - big cleanups for drivers for OMAP, Tegra, Nomadik, Blackfin - Rafael's struct dev_pm_ops conversion patches for I2C - usual driver cleanups and fixes All patches have been in linux-next for an apropriate time and all patches touching files outside of i2c-folders should have proper acks from the maintainers." * 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux: (60 commits) Revert "i2c: tegra: convert normal suspend/resume to *_noirq" I2C: MV64XYZ: Add Device Tree support i2c: stu300: use devm managed resources i2c: i2c-ocores: support for 16bit and 32bit IO V4L/DVB: mfd: use reg_shift instead of regstep i2c: i2c-ocores: Use reg-shift property i2c: i2c-ocores: DT bindings and minor fixes. i2c: mv64xxxx: remove EXPERIMENTAL tag i2c-s3c2410: Use plain pm_runtime_put() i2c: s3c2410: Fix pointer type passed to of_match_node() i2c: mxs: Set I2C timing registers for mxs-i2c i2c: i2c-bfin-twi: Move blackfin TWI register access Macro to head file. i2c: i2c-bfin-twi: Move TWI peripheral pin request array to platform data. i2c:i2c-bfin-twi: include twi head file i2c:i2c-bfin-twi: TWI fails to restart next transfer in high system load. i2c: i2c-bfin-twi: Tighten condition when failing I2C transfer if MEN bit is reset unexpectedly. i2c: i2c-bfin-twi: Break dead waiting loop if i2c device misbehaves. i2c: i2c-bfin-twi: Improve the patch for bug "Illegal i2c bus lock upon certain transfer scenarios". i2c: i2c-bfin-twi: Illegal i2c bus lock upon certain transfer scenarios. i2c-mv64xxxx: allow more than one driver instance ... Conflicts: drivers/i2c/busses/i2c-nomadik.c
2012-07-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "Several bug fixes, some to new features appearing in this merge window, some that have been around for a while. I have a short list of known problems that need to be sorted out, but all of them can be solved easily during the run up to 3.6-final. I'll be offline until Sunday afternoon, but nothing need hold up 3.6-rc1 and the close of the merge window, networking wise, at this point. 1) Fix interface check in ipv4 TCP early demux, from Eric Dumazet. 2) Fix a long standing bug in TCP DMA to userspace offload that can hang applications using MSG_TRUNC, from Jiri Kosina. 3) Don't allow TCP_USER_TIMEOUT to be negative, from Hangbin Liu. 4) Don't use GFP_KERNEL under spinlock in kaweth driver, from Dan Carpenter" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: tcp: perform DMA to userspace only if there is a task waiting for it Revert "openvswitch: potential NULL deref in sample()" ipv4: fix TCP early demux net: fix rtnetlink IFF_PROMISC and IFF_ALLMULTI handling USB: kaweth.c: use GFP_ATOMIC under spin_lock tcp: Add TCP_USER_TIMEOUT negative value check bcma: add missing iounmap on error path bcma: fix regression in interrupt assignment on mips mac80211_hwsim: fix possible race condition in usage of info->control.sta & control.vif
2012-07-27Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull ARM updates from Russell King: "First ARM push of this merge window, post me coming back from holiday. This is what has been in linux-next for the last few weeks. Not much to say which isn't described by the commit summaries." * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (32 commits) ARM: 7463/1: topology: Update cpu_power according to DT information ARM: 7462/1: topology: factorize the update of sibling masks ARM: 7461/1: topology: Add arch_scale_freq_power function ARM: 7456/1: ptrace: provide separate functions for tracing syscall {entry,exit} ARM: 7455/1: audit: move syscall auditing until after ptrace SIGTRAP handling ARM: 7454/1: entry: don't bother with syscall tracing on ret_from_fork path ARM: 7453/1: audit: only allow syscall auditing for pure EABI userspace ARM: 7452/1: delay: allow timer-based delay implementation to be selected ARM: 7451/1: arch timer: implement read_current_timer and get_cycles ARM: 7450/1: dcache: select DCACHE_WORD_ACCESS for little-endian ARMv6+ CPUs ARM: 7449/1: use generic strnlen_user and strncpy_from_user functions ARM: 7448/1: perf: remove arm_perf_pmu_ids global enumeration ARM: 7447/1: rwlocks: remove unused branch labels from trylock routines ARM: 7446/1: spinlock: use ticket algorithm for ARMv6+ locking implementation ARM: 7445/1: mm: update CONTEXTIDR register to contain PID of current process ARM: 7444/1: kernel: add arch-timer C3STOP feature ARM: 7460/1: remove asm/locks.h ARM: 7439/1: head.S: simplify initial page table mapping ARM: 7437/1: zImage: Allow DTB command line concatenation with ATAG_CMDLINE ARM: 7436/1: Do not map the vectors page as write-through on UP systems ...
2012-07-27Merge branches 'audit', 'delay', 'fixes', 'misc' and 'sta2x11' into for-linusRussell King
2012-07-27Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless John W. Linville says: ==================== These fixes are intended for the 3.6 stream. Hauke Mehrtens provides a pair of bcma fixes, one to fix a build regression on mips and another to correct a pair of missing iounmap calls. Thomas Huehn offers a mac80211_hwsim fix to avoid a possible use-after-free bug. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-27hwmon: (applesmc) Decode and act on read/write status codesHenrik Rydberg
The behavior of the SMC has changed several times over the years, causing read failures in the driver. It seems the problem can be explained by a shift in SMC speed combined with improper action on status codes. We should first wait for the SMC to settle, which was the most frequent response on the old slow machines. Then, if the SMC is busy, we need to try again later by resending the command. This was the most likely response until 2012. Now, with a shorter wait time, we are again most likely to poll while the SMC is settling, and as a result we see high failure rates on many old and new models. With the distinction between busy and failure, we can also wait longer before retrying, without sacrificing speed. This seems to bring failures down to virtually zero on all models. Tested on: MBA1,1 MBA3,1 MBA5,1 MBA5,2 MBP9,2 Tested-by: Adam Somerville <adamsomerville@gmail.com> Tested-by: Hubert Eichner <hubert.georg.eichner@gmail.com> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-07-27hwmon: (jc42) Don't reset hysteresis on device removalJean Delvare
Restoring the configuration register on device removal has the side effect of also resetting the hysteresis value. This is inconsistent as the other limits are not reset, only hysteresis. So, following the principle of least surprise, preserve the hysteresis value when restoring the configuration register. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-07-27hwmon: (jc42) Simplify hysteresis maskJean Delvare
Define JC42_CFG_HYST_MASK as the mask _before_ shifting instead of after shifting. This simplifies the current code slightly, and will simplify the code to come even more. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-07-27hwmon: (acpi_power_meter) Fix build warningGuenter Roeck
Commit c5dec0182256361a3f823316e8fb85263f76efe7 (acpi_power_meter: Use struct dev_pm_ops for power management) introduced the following build warning. It is seen if CONFIG_PM_SLEEP is not defined. acpi_power_meter.c:930:12: warning: acpi_power_meter_resume defined but not used Fix it. Cc: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-27USB: kaweth.c: use GFP_ATOMIC under spin_lockDan Carpenter
The problem is that we call this with a spin lock held. The call tree is: kaweth_start_xmit() holds kaweth->device_lock. -> kaweth_async_set_rx_mode() -> kaweth_control() -> kaweth_internal_control_msg() The kaweth_internal_control_msg() function is only called from kaweth_control() which used GFP_ATOMIC for its allocations. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-27Merge tag 'tty-3.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull TTY/Serial patches from Greg Kroah-Hartman: "Here's the "tiny" set of patches for 3.6-rc1 for the tty layer and serial drivers. They were cherry-picked from the tty-next branch of the tty git tree, as they are small and "obvious" fixes. The larger changes, as mentioned before, will be saved for the 3.7-rc1 merge window. All of these changes have been in the linux-next releases for quite a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'tty-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: pch_uart: Fix parity setting issue pch_uart: Fix rx error interrupt setting issue pch_uart: Fix missing break for 16 byte fifo tty ldisc: Close/Reopen race prevention should check the proper flag pch_uart: Add eg20t_port lock field, avoid recursive spinlocks vt: fix race in vt_waitactive() serial/of-serial: Add LPC3220 standard UART compatible string serial/8250: Add LPC3220 standard UART type serial_core: Update buffer overrun statistics. serial: samsung: Fixed wrong comparison for baudclk_rate
2012-07-27Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc fixes from Benjamin Herrenschmidt: "Here's a handful of powerpc patches, a couple of regression fixes for problems introduced in the main batch in this merge window, a couple of defconfig updates, and some trivials. The radeonfb one is something that was long standing in SLES which I forgot to pickup earlier." * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/ftrace: Trace function graph entry before updating index radeonfb: Add quirk for the graphics adapter in some JSxx powerpc: Lack of firmware flash support is not an error powerpc: Enable pseries hardware RNG and crypto modules powerpc: Update g5_defconfig powerpc/kvm/bookehv: Fix build regression powerpc: Set stack limit properly in crit_transfer_to_handler
2012-07-27Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2012-07-27dm thin: commit before gathering statusAlasdair G Kergon
Commit outstanding metadata before returning the status for a dm thin pool so that the numbers reported are as up-to-date as possible. The commit is not performed if the device is suspended or if the DM_NOFLUSH_FLAG is supplied by userspace and passed to the target through a new 'status_flags' parameter in the target's dm_status_fn. The userspace dmsetup tool will support the --noflush flag with the 'dmsetup status' and 'dmsetup wait' commands from version 1.02.76 onwards. Tested-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin: add read only and fail io modesJoe Thornber
Add read-only and fail-io modes to thin provisioning. If a transaction commit fails the pool's metadata device will transition to "read-only" mode. If a commit fails once already in read-only mode the transition to "fail-io" mode occurs. Once in fail-io mode the pool and all associated thin devices will report a status of "Fail". Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: introduce dm_pool_abort_metadataJoe Thornber
Introduce dm_pool_abort_metadata to abort the current metadata transaction. Generally this will only be called when bad things are happening and dm-thin is trying to roll back to a good state for read-only mode. It's complicated by the fact that the metadata device may have failed completely causing the abort to be unable to read the old transaction. In this case the metadata object is placed in a 'fail' mode and everything fails apart from destroying it. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: introduce dm_pool_metadata_set_read_onlyJoe Thornber
Introduce dm_pool_metadata_set_read_only to put the underlying block manager into read-only mode. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm persistent data: introduce dm_bm_set_read_onlyJoe Thornber
Introduce dm_bm_set_read_only to switch the block manager into a read-only mode. To be used when dm-thin degrades due to io errors on the metadata device. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin: reduce number of metadata commitsJoe Thornber
Reduce the number of metadata commits by using dm_thin_changed_this_transaction to check if metadata was changed on a per thin device granularity. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: add dm_thin_changed_this_transactionJoe Thornber
Introduce dm_thin_changed_this_transaction to dm-thin-metadata to publish a useful bit of information we're already tracking. This will help dm thin decide when to commit. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: add format option to dm_pool_metadata_openJoe Thornber
Add a parameter to dm_pool_metadata_open to indicate whether or not an unformatted metadata area should be formatted. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: tidy up open and format error pathsJoe Thornber
Tidy up error path in __open_metadata and __format_metadata in dm-thin-metadata. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: only check incompat features on openMike Snitzer
Factor out __check_incompat_features and only call it once when we open the metadata device rather than at the beginning of every transaction. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: remove duplicate pmd initialisationJoe Thornber
Remove some duplicate initialisation of struct dm_pool_metadata. These pmd fields are initialised by both: __format_metadata's calls to dm_btree_empty __write_initial_superblock + __begin_transaction Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: remove create parameter from __create_persistent_data_objectsJoe Thornber
Remove 'create' parameter from __create_persistent_data_objects() in dm-thin-metadata. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: move __superblock_all_zeroes to __open_or_format_metadataJoe Thornber
Move the check for __superblock_all_zeroes from __create_persistent_data_objects() down to __open_or_format_metadata in dm-thin-metadata. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: remove nr_blocks arg from __create_persistent_data_objectsJoe Thornber
Remove nr_blocks arg from __create_persistent_data_objects in dm-thin-metadata. It was always passed as zero. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: split __open or format metadataJoe Thornber
Split __open_or_format_metadata into __format_metadata and __open_metadata in dm-thin-metadata. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: use struct dm_pool_metadata members in ↵Joe Thornber
__open_or_format_metadata Clean up __open_or_format_metadata in dm-thin-metadata by using struct dm_pool_metadata members to replace local variables. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: zero unused superblock uuidJoe Thornber
Zero the unused uuid when initialising the metadata superblock. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: lift __begin_transaction out of __write_initial_superblockJoe Thornber
Lift the call to __begin_transaction out of __write_initial_superblock in dm-thin-metadata. Called higher up the call chain now. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: move dm_commit_pool_metadata into __write_initial_superblockJoe Thornber
Move dm_commit_pool_metadata inline into __write_initial_superblock in dm-thin-metadata. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: factor out __write_initial_superblockJoe Thornber
Factor out __write_initial_superblock and also pull some other initial creation code out of dm_pool_metadata_open. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: lift some initialisation out of __open_or_format_metadataJoe Thornber
Lift some initialisation out of __open_or_format_metadata in dm-thin-metadata. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-07-27dm thin metadata: factor __destroy_persistent_data out of dm_pool_metadata_closeJoe Thornber
Factor __destroy_persistent_data_objects out of dm_pool_metadata_close. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>