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2013-09-05Merge tag 'rdma-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull main batch of InfiniBand/RDMA changes from Roland Dreier: - Large ocrdma HW driver update: add "fast register" work requests, fixes, cleanups - Add receive flow steering support for raw QPs - Fix IPoIB neighbour race that leads to crash - iSER updates including support for using "fast register" memory registration - IPv6 support for iWARP - XRC transport fixes * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (54 commits) RDMA/ocrdma: Fix compiler warning about int/pointer size mismatch IB/iser: Fix redundant pointer check in dealloc flow IB/iser: Fix possible memory leak in iser_create_frwr_pool() IB/qib: Move COUNTER_MASK definition within qib_mad.h header guards RDMA/ocrdma: Fix passing wrong opcode to modify_srq RDMA/ocrdma: Fill PVID in UMC case RDMA/ocrdma: Add ABI versioning support RDMA/ocrdma: Consider multiple SGES in case of DPP RDMA/ocrdma: Fix for displaying proper link speed RDMA/ocrdma: Increase STAG array size RDMA/ocrdma: Dont use PD 0 for userpace CQ DB RDMA/ocrdma: FRMA code cleanup RDMA/ocrdma: For ERX2 irrespective of Qid, num_posted offset is 24 RDMA/ocrdma: Fix to work with even a single MSI-X vector RDMA/ocrdma: Remove the MTU check based on Ethernet MTU RDMA/ocrdma: Add support for fast register work requests (FRWR) RDMA/ocrdma: Create IRD queue fix IB/core: Better checking of userspace values for receive flow steering IB/mlx4: Add receive flow steering support IB/core: Export ib_create/destroy_flow through uverbs ...
2013-09-05Merge branch 'i2c/for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "Highlights: - OF and ACPI helpers are now included in the core, and not in external files anymore. This removes dependency problems for modules and is cleaner, in general. - mv64xxx-driver gains fifo usage to support mv78230 - imx-driver overhaul to support VF610 - various cleanups, most notably related to devm_* and CONFIG_PM usage - driver bugfixes and smaller feature additions" * 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (51 commits) i2c: rcar: add rcar-H2 support i2c: sirf: retry 3 times as sometimes we get random noack and timeout i2c: sirf: support reverse direction of address i2c: sirf: fix the typo for setting bitrate to less than 100k i2c: sirf: we need to wait I2C_RESET status in resume i2c: sirf: reset i2c controller early after we get a noack i2c: designware: get SDA hold time, HCNT and LCNT configuration from ACPI i2c: designware: make HCNT/LCNT values configurable i2c: mpc: cleanup clock API use i2c: pnx: fix error return code in i2c_pnx_probe() i2c: ismt: add error return code in probe() i2c: mv64xxx: fix typo in binding documentation i2c: imx: use exact SoC revision to document binding i2c: move ACPI helpers into the core i2c: move OF helpers into the core i2c: mv64xxx: Fix timing issue on Armada XP (errata FE-8471889) i2c: mv64xxx: Add I2C Transaction Generator support i2c: powermac: fix return path on error Documentation: i2c: Fix example in instantiating-devices i2c: tiny-usb: do not use stack as URB transfer_buffer ...
2013-09-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs pile 1 from Al Viro: "Unfortunately, this merge window it'll have a be a lot of small piles - my fault, actually, for not keeping #for-next in anything that would resemble a sane shape ;-/ This pile: assorted fixes (the first 3 are -stable fodder, IMO) and cleanups + %pd/%pD formats (dentry/file pathname, up to 4 last components) + several long-standing patches from various folks. There definitely will be a lot more (starting with Miklos' check_submount_and_drop() series)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (26 commits) direct-io: Handle O_(D)SYNC AIO direct-io: Implement generic deferred AIO completions add formats for dentry/file pathnames kvm eventfd: switch to fdget powerpc kvm: use fdget switch fchmod() to fdget switch epoll_ctl() to fdget switch copy_module_from_fd() to fdget git simplify nilfs check for busy subtree ibmasmfs: don't bother passing superblock when not needed don't pass superblock to hypfs_{mkdir,create*} don't pass superblock to hypfs_diag_create_files don't pass superblock to hypfs_vm_create_files() oprofile: get rid of pointless forward declarations of struct super_block oprofilefs_create_...() do not need superblock argument oprofilefs_mkdir() doesn't need superblock argument don't bother with passing superblock to oprofile_create_stats_files() oprofile: don't bother with passing superblock to ->create_files() don't bother passing sb to oprofile_create_files() coh901318: don't open-code simple_read_from_buffer() ...
2013-09-05Merge branch 'ipmi'Linus Torvalds
Merge IPMI fixes from: "A few things for 3.12 from various people" * emailed patches from Corey Minyard <minyard@acm.org>: BMC support for PARISC machines Add MODULE_ALIAS for autoloading ipmi driver on ACPI systems ipmi: Initialize locals to avoid warning ipmi: info leak in compat_ipmi_ioctl()
2013-09-05BMC support for PARISC machinesThomas Bogendoerfer
The last line of PARISC machines (C8000, RP34x0, etc.) have a BMC for controlling temperature, fan speed and other stuff. The BMC is connected via a special bus and listed in the firmware device tree. This change adds support for these BMCs to the IPMI driver. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-05Add MODULE_ALIAS for autoloading ipmi driver on ACPI systemsJordan_Hargrave@Dell.com
I'd submitted this about a year ago but it never made it upstream. The latest versions of the kernel drivers for ipmi can use ACPI to determine the type of BMC device used in the system. The following patch adds a module alias so that udev will autoload the ipmi_si driver. Signed-off-by: Jordan Hargrave <jordan_hargrave@dell.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-05ipmi: Initialize locals to avoid warningCorey Minyard
A couple of variables were getting warnings about being uninitialized. It was a false warning, but initialize them, anyway. Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-05ipmi: info leak in compat_ipmi_ioctl()Dan Carpenter
On x86_64 there is a 4 byte hole between ->recv_type and ->addr. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-04Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM updates from Gleb Natapov: "The highlights of the release are nested EPT and pv-ticketlocks support (hypervisor part, guest part, which is most of the code, goes through tip tree). Apart of that there are many fixes for all arches" Fix up semantic conflicts as discussed in the pull request thread.. * 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (88 commits) ARM: KVM: Add newlines to panic strings ARM: KVM: Work around older compiler bug ARM: KVM: Simplify tracepoint text ARM: KVM: Fix kvm_set_pte assignment ARM: KVM: vgic: Bump VGIC_NR_IRQS to 256 ARM: KVM: Bugfix: vgic_bytemap_get_reg per cpu regs ARM: KVM: vgic: fix GICD_ICFGRn access ARM: KVM: vgic: simplify vgic_get_target_reg KVM: MMU: remove unused parameter KVM: PPC: Book3S PR: Rework kvmppc_mmu_book3s_64_xlate() KVM: PPC: Book3S PR: Make instruction fetch fallback work for system calls KVM: PPC: Book3S PR: Don't corrupt guest state when kernel uses VMX KVM: x86: update masterclock when kvmclock_offset is calculated (v2) KVM: PPC: Book3S: Fix compile error in XICS emulation KVM: PPC: Book3S PR: return appropriate error when allocation fails arch: powerpc: kvm: add signed type cast for comparation KVM: x86: add comments where MMIO does not return to the emulator KVM: vmx: count exits to userspace during invalid guest emulation KVM: rename __kvm_io_bus_sort_cmp to kvm_io_bus_cmp kvm: optimize away THP checks in kvm_is_mmio_pfn() ...
2013-09-04Merge tag 'stable/for-linus-3.12-rc0-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull Xen updates from Konrad Rzeszutek Wilk: "A couple of features and a ton of bug-fixes. There is also some maintership changes. Jeremy is enjoying the full-time work at the startup and as much as he would love to help - he can't find the time. I have a bunch of other things that I promised to work on - paravirt diet, get SWIOTLB working everywhere, etc, but haven't been able to find the time. As such both David Vrabel and Boris Ostrovsky have graciously volunteered to help with the maintership role. They will keep the lid on regressions, bug-fixes, etc. I will be in the background to help - but eventually there will be less of me doing the Xen GIT pulls and more of them. Stefano is still doing the ARM/ARM64 and will continue on doing so. Features: - Xen Trusted Platform Module (TPM) frontend driver - with the backend in MiniOS. - Scalability improvements in event channel. - Two extra Xen co-maintainers (David, Boris) and one going away (Jeremy) Bug-fixes: - Make the 1:1 mapping work during early bootup on selective regions. - Add scratch page to balloon driver to deal with unexpected code still holding on stale pages. - Allow NMIs on PV guests (64-bit only) - Remove unnecessary TLB flush in M2P code. - Fixes duplicate callbacks in Xen granttable code. - Fixes in PRIVCMD_MMAPBATCH ioctls to allow retries - Fix for events being lost due to rescheduling on different VCPUs. - More documentation" * tag 'stable/for-linus-3.12-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (23 commits) hvc_xen: Remove unnecessary __GFP_ZERO from kzalloc drivers/xen-tpmfront: Fix compile issue with missing option. xen/balloon: don't set P2M entry for auto translated guest xen/evtchn: double free on error Xen: Fix retry calls into PRIVCMD_MMAPBATCH*. xen/pvhvm: Initialize xen panic handler for PVHVM guests xen/m2p: use GNTTABOP_unmap_and_replace to reinstate the original mapping xen: fix ARM build after 6efa20e4 MAINTAINERS: Remove Jeremy from the Xen subsystem. xen/events: document behaviour when scanning the start word for events x86/xen: during early setup, only 1:1 map the ISA region x86/xen: disable premption when enabling local irqs swiotlb-xen: replace dma_length with sg_dma_len() macro swiotlb: replace dma_length with sg_dma_len() macro xen/balloon: set a mapping for ballooned out pages xen/evtchn: improve scalability by using per-user locks xen/p2m: avoid unneccesary TLB flush in m2p_remove_override() MAINTAINERS: Add in two extra co-maintainers of the Xen tree. MAINTAINERS: Update the Xen subsystem's with proper mailing list. xen: replace strict_strtoul() with kstrtoul() ...
2013-09-04Merge tag 'modules-next-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module updates from Rusty Russell: "Minor fixes mainly, including a potential use-after-free on remove found by CONFIG_DEBUG_KOBJECT_RELEASE which may be theoretical" * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: module: Fix mod->mkobj.kobj potentially freed too early kernel/params.c: use scnprintf() instead of sprintf() kernel/module.c: use scnprintf() instead of sprintf() module/lsm: Have apparmor module parameters work with no args module: Add NOARG flag for ops with param_set_bool_enable_only() set function module: Add flag to allow mod params to have no arguments modules: add support for soft module dependencies scripts/mod/modpost.c: permit '.cranges' secton for sh64 architecture. module: fix sprintf format specifier in param_get_byte()
2013-09-04Merge tag 'PTR_RET-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull PTR_RET() removal patches from Rusty Russell: "PTR_RET() is a weird name, and led to some confusing usage. We ended up with PTR_ERR_OR_ZERO(), and replacing or fixing all the usages. This has been sitting in linux-next for a whole cycle" [ There are still some PTR_RET users scattered about, with some of them possibly being new, but most of them existing in Rusty's tree too. We have that #define PTR_RET(p) PTR_ERR_OR_ZERO(p) thing in <linux/err.h>, so they continue to work for now - Linus ] * tag 'PTR_RET-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: GFS2: Replace PTR_RET with PTR_ERR_OR_ZERO Btrfs: volume: Replace PTR_RET with PTR_ERR_OR_ZERO drm/cma: Replace PTR_RET with PTR_ERR_OR_ZERO sh_veu: Replace PTR_RET with PTR_ERR_OR_ZERO dma-buf: Replace PTR_RET with PTR_ERR_OR_ZERO drivers/rtc: Replace PTR_RET with PTR_ERR_OR_ZERO mm/oom_kill: remove weird use of ERR_PTR()/PTR_ERR(). staging/zcache: don't use PTR_RET(). remoteproc: don't use PTR_RET(). pinctrl: don't use PTR_RET(). acpi: Replace weird use of PTR_RET. s390: Replace weird use of PTR_RET. PTR_RET is now PTR_ERR_OR_ZERO(): Replace most. PTR_RET is now PTR_ERR_OR_ZERO
2013-09-04Merge tag 'dlm-3.12' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm Pull dlm updates from David Teigland: "This set includes a workqueue cleanup and the removal of incorrect and unneeded signal blocking" * tag 'dlm-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: dlm: remove signal blocking dlm: WQ_NON_REENTRANT is meaningless and going away
2013-09-04Merge tag 'ext4_for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates from Ted Ts'o: "New features for 3.12: - Added aggressive extent caching using the extent status tree. This can actually decrease memory usage in read-mostly workloads since the information is much more compactly stored in the extent status tree than if we had to keep the extent tree metadata blocks in the buffer cache. This also improves Asynchronous I/O since it is it makes much less likely that we need to do metadata I/O to lookup the extent tree information. - Improve the recovery after corrupted allocation bitmaps are found when running in errors=ignore mode. Also fixed some writeback vs truncate races when using a blocksize less than the page size" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (25 commits) ext4: allow specifying external journal by pathname mount option ext4: mark group corrupt on group descriptor checksum ext4: mark block group as corrupt on inode bitmap error ext4: mark block group as corrupt on block bitmap error ext4: fix type declaration of ext4_validate_block_bitmap ext4: error out if verifying the block bitmap fails jbd2: Fix endian mixing problems in the checksumming code ext4: isolate ext4_extents.h file ext4: Fix misspellings using 'codespell' tool ext4: convert write_begin methods to stable_page_writes semantics ext4: fix use of potentially uninitialized variables in debugging code ext4: fix lost truncate due to race with writeback ext4: simplify truncation code in ext4_setattr() ext4: fix ext4_writepages() in presence of truncate ext4: move test whether extent to map can be extended to one place ext4: fix warning in ext4_da_update_reserve_space() quota: provide interface for readding allocated space into reserved space ext4: avoid reusing recently deleted inodes in no journal mode ext4: allocate delayed allocation blocks before rename ext4: start handle at least possible moment when renaming files ...
2013-09-04lockref: Implement lockref for ItaniumLuck, Tony
All the cool kids are doing this, join in the fun. Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-04Merge tag 'sound-3.12' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "Changes are seen in a wide range of codes, mainly due to ASoC DAPM requirements; HD-audio shows a high peak in diffstat, it's just a removal of bunch of old static quirks. Some highlights: - HDPM: Updates for AIO/RayDAT support, TCO/sync support - RME96: Add PCM sync support - HD-audio: * A few HDMI/DP audio updates (CA assignment fix, stream switching fix, Intel DP device list support) * Device specific fixes (ASUS/CXT HP mic support, Thinkpad mic improvements, Chromebook fixes, STAC9228 Dell fixes) * Replace the all static quirks for AD codecs with the generic parser * WAKEEN support for handling irqs in the power saving mode - USB-audio: Clean up implicit fb handling and related codes - DAPM is now mandatory for ASoC CODEC drivers; all existing drivers have had some level of DAPM support added. In addition, a lot of cleanups and improvements in DAPM. - Support for ASoC cross-platform compile test - New drivers and support for Analog Devices ADAU1702 and ADAU1401(a), Asahi Kasei Microdevices AK4554, Atmel AT91ASM9x5 and WM8904 based machines, Freescale S/PDIF and SSI AC'97, Renesas R-Car SoCs, Samsung Exynos5420 SoCs, Texas Instruments PCM1681 and PCM1792A and Wolfson Microelectronics WM8997 - DT bindings for kirkwood and i.MX S/PDIF - Clean up and bug fixes: ssm2602, rt5640 and sgtl5000. - Core helpers for bitbanged AC'97 reset" * tag 'sound-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (375 commits) ALSA: hda - Re-setup HDMI pin and audio infoframe on stream switches ALSA: hda - hdmi: Fallback to ALSA allocation when selecting CA ASoC: mxs-sgtl5000: Configure the dai_links as unidirectional ASoC: soc-pcm: Allow to specify unidirectional dai_link ASoC: fsl_spdif: Staticse non-exported symbols ASoC: ssm2602: Fix cache sync ASoC: Remove unused sysfs_registered field from snd_soc_codec struct ASoC: Remove unused debugfs_dapm field from snd_soc_{platform,codec} struct ASoC: Remove unused control_type field from snd_soc_codec struct ASoC: fsl: Add one blank space after ':=' in Makefile ASoC: fsl: Add wrapping for dev_dbg() in fsl_spdif.c ASoC: rt5640: change widget sequence for depop ASoC: dapm: Fix auto-disable for inverted controls ASoC: fsl: Drop SND_SOC_FSL_UTILS from SND_SOC_IMX_SPDIF ASoC: Samsung: Do not queue cyclic buffers multiple times ASoC: ep93xx-i2s: Remove unnecessary dev_set_drvdata() ASoC: designware_i2s: Remove unnecessary dev_set_drvdata() ASoC: fsl_spdif: remove redundant dev_err call in fsl_spdif_probe() ASoC: fsl: Add S/PDIF machine driver ASoc: kirkwood: Use the Kirkwood audio driver in Dove boards ...
2013-09-04Merge tag 'pinctrl-v3.12-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control changes from Linus Walleij: "Here is the bulk of pin control changes for the v3.12 series. Most of the relevant information is in the tag. I merged in v3.11-rc7 last week to get rid of a largeish conflict within the sunxi (AllWinner) driver in linux-next and fix up the non-trivial merge the right way. That driver had a rather large fix adding locking late in the release cycle. Overall the bulk changes this time is cleanups and refactorings and not much new features, which is nice. - Refactorings for generic pin config handling in the core. - Factor out a set of device tree utilities for use in all drivers, to parse and allocate maps from the device tree. - Some fixes to the core such as more nitpicky locking. - Pushed down config array iteration into the drivers. This patch is necessary for drivers that want to iterate over configs and pile up a stack of alterations to the same register(s), or if the driver wants to take a local spinlock when committing the configuration. - A new driver for the Texas Instruments Palmas PMIC by Laxman Dewangan. This is used on the Tegra systems. - A major cleanup and modernization of the PFC (Super Hitachi and ARM SHmobile) pin controller and subdrivers. - Support for the A20 and A31 sunxi (AllWinner) SoCs. - A huge pile of fixes and cleanups: Axel Lin, Jingoo Han Dan Carpenter, Julia Lawall and Sachin Kamat did an excellent job here" * tag 'pinctrl-v3.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (124 commits) pinctrl: sunxi: Fix off-by-one for valid offset range checking pinctrl: sunxi: drop lock on error path pinctrl: pinconf-generic: Remove ti prefix in dev_err messages pinctrl: rockchip: Implement .request() and .free() callbacks pinctrl: at91: fix get_pullup/down function return pinctrl: sh-pfc: remove unnecessary platform_set_drvdata() pinctrl: Add s5pv210 support to pinctrl-exynos pinctrl: utils: include export.h to avoid warnings pinctrl: s3c24xx: off by one in s3c24xx_eint_init() pinctrl: mvebu: testing the wrong variable pinctrl: abx500: fix bitwise AND test pinctrl: mvebu: Convert to use devm_ioremap_resource pinctrl: Pass all configs to driver on pin_config_set() pinctrl: tz1090-pdc: Convert to devm_ioremap_resource pinctrl: tz1090: Convert to devm_ioremap_resource pinctrl: tegra: Convert to devm_ioremap_resource pinctrl: rockchip: Simplify pin_to_bank equation pinctrl: spear: Convert to devm_ioremap_resource pinctrl: rockchip: Remove of_match_ptr macro for DT only driver pinctrl: palmas: PINCTRL_PALMAS needs to select PINMUX ...
2013-09-04Merge branch 'x86-spinlocks-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 spinlock changes from Ingo Molnar: "The biggest change here are paravirtualized ticket spinlocks (PV spinlocks), which bring a nice speedup on various benchmarks. The KVM host side will come to you via the KVM tree" * 'x86-spinlocks-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/kvm/guest: Fix sparse warning: "symbol 'klock_waiting' was not declared as static" kvm: Paravirtual ticketlocks support for linux guests running on KVM hypervisor kvm guest: Add configuration support to enable debug information for KVM Guests kvm uapi: Add KICK_CPU and PV_UNHALT definition to uapi xen, pvticketlock: Allow interrupts to be enabled while blocking x86, ticketlock: Add slowpath logic jump_label: Split jumplabel ratelimit x86, pvticketlock: When paravirtualizing ticket locks, increment by 2 x86, pvticketlock: Use callee-save for lock_spinning xen, pvticketlocks: Add xen_nopvspin parameter to disable xen pv ticketlocks xen, pvticketlock: Xen implementation for PV ticket locks xen: Defer spinlock setup until boot CPU setup x86, ticketlock: Collapse a layer of functions x86, ticketlock: Don't inline _spin_unlock when using paravirt spinlocks x86, spinlock: Replace pv spinlocks with pv ticketlocks
2013-09-04Merge branch 'x86-smap-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 SMAP fixes from Ingo Molnar: "Fixes for Intel SMAP support, to fix SIGSEGVs during bootup" * 'x86-smap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Introduce [compat_]save_altstack_ex() to unbreak x86 SMAP x86, smap: Handle csum_partial_copy_*_user()
2013-09-04Merge branch 'x86-ras-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 RAS changes from Ingo Molnar: "[ The reason for drivers/ updates is that Boris asked for the drivers/edac/ changes to go via x86/ras in this cycle ] Main changes: - AMD CPUs: . Add ECC event decoding support for new F15h models . Various erratum fixes . Fix single-channel on dual-channel-controllers bug. - Intel CPUs: . UC uncorrectable memory error parsing fix . Add support for CMC (Corrected Machine Check) 'FF' (Firmware First) flag in the APEI HEST - Various cleanups and fixes" * 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: amd64_edac: Fix incorrect wraparounds amd64_edac: Correct erratum 505 range cpc925_edac: Use proper array termination x86/mce, acpi/apei: Only disable banks listed in HEST if mce is configured amd64_edac: Get rid of boot_cpu_data accesses amd64_edac: Add ECC decoding support for newer F15h models x86, amd_nb: Clarify F15h, model 30h GART and L3 support pci_ids: Add PCI device ID functions 3 and 4 for newer F15h models. x38_edac: Make a local function static i3200_edac: Make a local function static x86/mce: Pay no attention to 'F' bit in MCACOD when parsing 'UC' errors APEI/ERST: Fix error message formatting amd64_edac: Fix single-channel setups EDAC: Replace strict_strtol() with kstrtol() mce: acpi/apei: Soft-offline a page on firmware GHES notification mce: acpi/apei: Add a boot option to disable ff mode for corrected errors mce: acpi/apei: Honour Firmware First for MCA banks listed in APEI HEST CMC
2013-09-04Merge branch 'x86-platform-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 platform documentation fix from Ingo Molnar. * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/acpi: Correct out-of-date comment of __acpi_map_table()
2013-09-04Merge branch 'x86-paravirt-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 paravirt changes from Ingo Molnar: "Hypervisor signature detection cleanup and fixes - the goal is to make KVM guests run better on MS/Hyperv and to generalize and factor out the code a bit" * 'x86-paravirt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Correctly detect hypervisor x86, kvm: Switch to use hypervisor_cpuid_base() xen: Switch to use hypervisor_cpuid_base() x86: Introduce hypervisor_cpuid_base()
2013-09-04Merge branch 'x86-mm-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 mm changes from Ingo Molnar: "Misc smaller fixes: - a parse_setup_data() boot crash fix - a memblock and an __early_ioremap cleanup - turn the always-on CONFIG_ARCH_MEMORY_PROBE=y into a configurable option and turn it off - it's an unrobust debug facility, it shouldn't be enabled by default" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: avoid remapping data in parse_setup_data() x86: Use memblock_set_current_limit() to set limit for memblock. mm: Remove unused variable idx0 in __early_ioremap() mm/hotplug, x86: Disable ARCH_MEMORY_PROBE by default
2013-09-04Merge branch 'x86-kaslr-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 relocation changes from Ingo Molnar: "This tree contains a single change, ELF relocation handling in C - one of the kernel randomization patches that makes sense even without randomization present upstream" * 'x86-kaslr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, relocs: Move ELF relocation handling to C
2013-09-04Merge branch 'timers-nohz-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timers/nohz changes from Ingo Molnar: "It mostly contains fixes and full dynticks off-case optimizations, by Frederic Weisbecker" * 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits) nohz: Include local CPU in full dynticks global kick nohz: Optimize full dynticks's sched hooks with static keys nohz: Optimize full dynticks state checks with static keys nohz: Rename a few state variables vtime: Always debug check snapshot source _before_ updating it vtime: Always scale generic vtime accounting results vtime: Optimize full dynticks accounting off case with static keys vtime: Describe overriden functions in dedicated arch headers m68k: hardirq_count() only need preempt_mask.h hardirq: Split preempt count mask definitions context_tracking: Split low level state headers vtime: Fix racy cputime delta update vtime: Remove a few unneeded generic vtime state checks context_tracking: User/kernel broundary cross trace events context_tracking: Optimize context switch off case with static keys context_tracking: Optimize guest APIs off case with static key context_tracking: Optimize main APIs off case with static key context_tracking: Ground setup for static key use context_tracking: Remove full dynticks' hacky dependency on wide context tracking nohz: Only enable context tracking on full dynticks CPUs ...
2013-09-04Merge branch 'x86-fb-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fb changes from Ingo Molnar: "This tree includes preparatory patches for SimpleDRM driver support, by David Herrmann. They clean up x86 framebuffer support by creating simplefb devices wherever possible. More background can be found at http://lwn.net/Articles/558104/" * 'x86-fb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: fbdev: fbcon: select VT_HW_CONSOLE_BINDING fbdev: efifb: bind to efi-framebuffer fbdev: vesafb: bind to platform-framebuffer device fbdev: simplefb: add common x86 RGB formats x86: sysfb: move EFI quirks from efifb to sysfb x86: provide platform-devices for boot-framebuffers fbdev: simplefb: mark as fw and allocate apertures fbdev: simplefb: add init through platform_data
2013-09-04Merge branch 'x86-cpu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cpu feature fixes from Ingo Molnar: "Two small cpufeature support updates" * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Fix override new_cpu_data.x86 with 486 x86, cpufeature: Use new CC_HAVE_ASM_GOTO
2013-09-04Merge branches 'x86-boot-for-linus' and 'x86-cleanups-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull tiny x86 boot cleanups from Ingo Molnar. * 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot: Fix a sanity check in printf.c * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, boot: Fix warning due to undeclared strlen()
2013-09-04Merge branch 'x86-asmlinkage-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86/asmlinkage changes from Ingo Molnar: "As a preparation for Andi Kleen's LTO patchset (link time optimizations using GCC's -flto which build time optimization has steadily increased in quality over the past few years and might eventually be usable for the kernel too) this tree includes a handful of preparatory patches that make function calling convention annotations consistent again: - Mark every function without arguments (or 64bit only) that is used by assembly code with asmlinkage() - Mark every function with parameters or variables that is used by assembly code as __visible. For the vanilla kernel this has documentation, consistency and debuggability advantages, for the time being" * 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asmlinkage: Fix warning in xen asmlinkage change x86, asmlinkage, vdso: Mark vdso variables __visible x86, asmlinkage, power: Make various symbols used by the suspend asm code visible x86, asmlinkage: Make dump_stack visible x86, asmlinkage: Make 64bit checksum functions visible x86, asmlinkage, paravirt: Add __visible/asmlinkage to xen paravirt ops x86, asmlinkage, apm: Make APM data structure used from assembler visible x86, asmlinkage: Make syscall tables visible x86, asmlinkage: Make several variables used from assembler/linker script visible x86, asmlinkage: Make kprobes code visible and fix assembler code x86, asmlinkage: Make various syscalls asmlinkage x86, asmlinkage: Make 32bit/64bit __switch_to visible x86, asmlinkage: Make _*_start_kernel visible x86, asmlinkage: Make all interrupt handlers asmlinkage / __visible x86, asmlinkage: Change dotraplinkage into __visible on 32bit x86: Fix sys_call_table type in asm/syscall.h
2013-09-04Merge branch 'x86-asm-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86/asm changes from Ingo Molnar: "Main changes: - Apply low level mutex optimization on x86-64, by Wedson Almeida Filho. - Change bitops to be naturally 'long', by H Peter Anvin. - Add TSX-NI opcodes support to the x86 (instrumentation) decoder, by Masami Hiramatsu. - Add clang compatibility adjustments/workarounds, by Jan-Simon Möller" * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, doc: Update uaccess.h comment to reflect clang changes x86, asm: Fix a compilation issue with clang x86, asm: Extend definitions of _ASM_* with a raw format x86, insn: Add new opcodes as of June, 2013 x86/ia32/asm: Remove unused argument in macro x86, bitops: Change bitops to be native operand size x86: Use asm-goto to implement mutex fast path on x86-64
2013-09-04Merge branch 'x86-apic-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86/apic changes from Ingo Molnar: "Smaller fixes" * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/ioapic: Check attr against the previous setting when programmed more than once x86/ioapic/kcrash: Prevent crash_kexec() from deadlocking on ioapic_lock x86/acpi: Fix incorrect sanity check in acpi_register_lapic()
2013-09-04Merge branch 'timers-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer changes from Ingo Molnar: "Various clocksource driver updates: extend the core with memory mapped hardware (mmio) support and add new (ARM) Moxart SoC and sun4i hardware support" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits) clocksource: arch_timer: Add support for memory mapped timers clocksource: arch_timer: Push the read/write wrappers deeper Documentation: Add memory mapped ARM architected timer binding clocksource: arch_timer: Pass clock event to set_mode callback clocksource: arch_timer: Make register accessors less error-prone ARM: clocksource: moxart: documentation: Update device tree bindings document ARM: clocksource: moxart: Add bitops.h include ARM: clocksource: moxart: documentation: Fix device tree bindings document ARM: clocksource: Add support for MOXA ART SoCs clocksource: cadence_ttc: Reuse clocksource as sched_clock clocksource: cadence_ttc: Remove unused header clocksource: sun4i: Fix bug when switching from periodic to oneshot modes clocksource: sun4i: Cleanup parent clock setup clocksource: sun4i: Remove TIMER_SCAL variable clocksource: sun4i: Factor out some timer code clocksource: sun4i: Fix the next event code clocksource: sun4i: Don't forget to enable the clock we use clocksource: sun4i: Add clocksource and sched clock drivers clocksource: sun4i: rename AUTORELOAD define to RELOAD clocksource: sun4i: Wrap macros arguments in parenthesis ...
2013-09-04Merge branch 'sched-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler changes from Ingo Molnar: "Various optimizations, cleanups and smaller fixes - no major changes in scheduler behavior" * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/fair: Fix the sd_parent_degenerate() code sched/fair: Rework and comment the group_imb code sched/fair: Optimize find_busiest_queue() sched/fair: Make group power more consistent sched/fair: Remove duplicate load_per_task computations sched/fair: Shrink sg_lb_stats and play memset games sched: Clean-up struct sd_lb_stat sched: Factor out code to should_we_balance() sched: Remove one division operation in find_busiest_queue() sched/cputime: Use this_cpu_add() in task_group_account_field() cpumask: Fix cpumask leak in partition_sched_domains() sched/x86: Optimize switch_mm() for multi-threaded workloads generic-ipi: Kill unnecessary variable - csd_flags numa: Mark __node_set() as __always_inline sched/fair: Cleanup: remove duplicate variable declaration sched/__wake_up_sync_key(): Fix nr_exclusive tasks which lead to WF_SYNC clearing
2013-09-04Merge branches 'perf-urgent-for-linus' and 'perf-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf changes from Ingo Molnar: "As a first remark I'd like to point out that the obsolete '-f' (--force) option, which has not done anything for several releases, has been removed from 'perf record' and related utilities. Everyone please update muscle memory accordingly! :-) Main changes on the perf kernel side: - Performance optimizations: . for trace events, by Steve Rostedt. . for time values, by Peter Zijlstra - New hardware support: . for Intel Silvermont (22nm Atom) CPUs, by Zheng Yan . for Intel SNB-EP uncore PMUs, by Zheng Yan - Enhanced hardware support: . for Intel uncore PMUs: add filter support for QPI boxes, by Zheng Yan - Core perf events code enhancements and fixes: . for full-nohz feature handling, by Frederic Weisbecker . for group events, by Jiri Olsa . for call chains, by Frederic Weisbecker . for event stream parsing, by Adrian Hunter - New ABI details: . Add attr->mmap2 attribute, by Stephane Eranian . Add PERF_EVENT_IOC_ID ioctl to return event ID, by Jiri Olsa . Export u64 time_zero on the mmap header page to allow TSC calculation, by Adrian Hunter . Add dummy software event, by Adrian Hunter. . Add a new PERF_SAMPLE_IDENTIFIER to make samples always parseable, by Adrian Hunter. . Make Power7 events available via sysfs, by Runzhen Wang. - Code cleanups and refactorings: . for nohz-full, by Frederic Weisbecker . for group events, by Jiri Olsa - Documentation updates: . for perf_event_type, by Peter Zijlstra Main changes on the perf tooling side (some of these tooling changes utilize the above kernel side changes): - Lots of 'perf trace' enhancements: . Make 'perf trace' command line arguments consistent with 'perf record', by David Ahern. . Allow specifying syscalls a la strace, by Arnaldo Carvalho de Melo. . Add --verbose and -o/--output options, by Arnaldo Carvalho de Melo. . Support ! in -e expressions, to filter a list of syscalls, by Arnaldo Carvalho de Melo. . Arg formatting improvements to allow masking arguments in syscalls such as futex and open, where the some arguments are ignored and thus should not be printed depending on other args, by Arnaldo Carvalho de Melo. . Beautify futex open, openat, open_by_handle_at, lseek and futex syscalls, by Arnaldo Carvalho de Melo. . Add option to analyze events in a file versus live, so that one can do: [root@zoo ~]# perf record -a -e raw_syscalls:* sleep 1 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 25.150 MB perf.data (~1098836 samples) ] [root@zoo ~]# perf trace -i perf.data -e futex --duration 1 17.799 ( 1.020 ms): 7127 futex(uaddr: 0x7fff3f6c6674, op: 393, val: 1, utime: 0x7fff3f6c6470, ua 113.344 (95.429 ms): 7127 futex(uaddr: 0x7fff3f6c6674, op: 393, val: 1, utime: 0x7fff3f6c6470, uaddr2: 0x7fff3f6c6648, val3: 4294967 133.778 ( 1.042 ms): 18004 futex(uaddr: 0x7fff3f6c6674, op: 393, val: 1, utime: 0x7fff3f6c6470, uaddr2: 0x7fff3f6c6648, val3: 429496 [root@zoo ~]# By David Ahern. . Honor target pid / tid options when analyzing a file, by David Ahern. . Introduce better formatting of syscall arguments, including so far beautifiers for mmap, madvise, syscall return values, by Arnaldo Carvalho de Melo. . Handle HUGEPAGE defines in the mmap beautifier, by David Ahern. - 'perf report/top' enhancements: . Do annotation using /proc/kcore and /proc/kallsyms when available, removing the forced need for a vmlinux file kernel assembly annotation. This also improves this use case because vmlinux has just the initial kernel image, not what is actually in use after various code patchings by things like alternatives. By Adrian Hunter. . Add --ignore-callees=<regex> option to collapse undesired parts of call graphs, by Greg Price. . Simplify symbol filtering by doing it at machine class level, by Adrian Hunter. . Add support for callchains in the gtk UI, by Namhyung Kim. . Add --objdump option to 'perf top', by Sukadev Bhattiprolu. - 'perf kvm' enhancements: . Add option to print only events that exceed a specified time duration, by David Ahern. . Improve stack trace printing, by David Ahern. . Update documentation of the live command, by David Ahern . Add perf kvm stat live mode that combines aspects of 'perf kvm stat' record and report, by David Ahern. . Add option to analyze specific VM in perf kvm stat report, by David Ahern. . Do not require /lib/modules/* on a guest, by Jason Wessel. - 'perf script' enhancements: . Fix symbol offset computation for some dsos, by David Ahern. . Fix named threads support, by David Ahern. . Don't install scripting files files when perl/python support is disabled, by Arnaldo Carvalho de Melo. - 'perf test' enhancements: . Add various improvements and fixes to the "vmlinux matches kallsyms" 'perf test' entry, related to the /proc/kcore annotation feature. By Adrian Hunter. . Add sample parsing test, by Adrian Hunter. . Add test for reading object code, by Adrian Hunter. . Add attr record group sampling test, by Jiri Olsa. . Misc testing infrastructure improvements and other details, by Jiri Olsa. - 'perf list' enhancements: . Skip unsupported hardware events, by Namhyung Kim. . List pmu events, by Andi Kleen. - 'perf diff' enhancements: . Add support for more than two files comparison, by Jiri Olsa. - 'perf sched' enhancements: . Various improvements, including removing reliance on some scheduler tracepoints that provide the same information as the PERF_RECORD_{FORK,EXIT} events. By David Ahern. . Remove odd build stall by moving a large struct initialization from a local variable to a global one, by Namhyung Kim. - 'perf stat' enhancements: . Add --initial-delay option to skip measuring for a defined startup phase, by Andi Kleen. - Generic perf tooling infrastructure/plumbing changes: . Tidy up sample parsing validation, by Adrian Hunter. . Fix up jobserver setup in libtraceevent Makefile. by Arnaldo Carvalho de Melo. . Debug improvements, by Adrian Hunter. . Fix correlation of samples coming after PERF_RECORD_EXIT event, by David Ahern. . Improve robustness of the topology parsing code, by Stephane Eranian. . Add group leader sampling, that allows just one event in a group to sample while the other events have just its values read, by Jiri Olsa. . Add support for a new modifier "D", which requests that the event, or group of events, be pinned to the PMU. By Michael Ellerman. . Support callchain sorting based on addresses, by Andi Kleen . Prep work for multi perf data file storage, by Jiri Olsa. . libtraceevent cleanups, by Namhyung Kim. And lots and lots of other fixes and code reorganizations that did not make it into the list, see the shortlog, diffstat and the Git log for details!" [ Also merge a leftover from the 3.11 cycle ] * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Prevent race in unthrottling code * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (237 commits) perf trace: Tell arg formatters the arg index perf trace: Add beautifier for open's flags arg perf trace: Add beautifier for lseek's whence arg perf tools: Fix symbol offset computation for some dsos perf list: Skip unsupported events perf tests: Add 'keep tracking' test perf tools: Add support for PERF_COUNT_SW_DUMMY perf: Add a dummy software event to keep tracking perf trace: Add beautifier for futex 'operation' parm perf trace: Allow syscall arg formatters to mask args perf: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node() perf: Export struct perf_branch_entry to userspace perf: Add attr->mmap2 attribute to an event perf/x86: Add Silvermont (22nm Atom) support perf/x86: use INTEL_UEVENT_EXTRA_REG to define MSR_OFFCORE_RSP_X perf trace: Handle missing HUGEPAGE defines perf trace: Honor target pid / tid options when analyzing a file perf trace: Add option to analyze events in a file versus live perf evlist: Add tracepoint lookup by name perf tests: Add a sample parsing test ...
2013-09-04Merge branch 'core-locking-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core/locking changes from Ingo Molnar: "Main changes: - another mutex optimization, from Davidlohr Bueso - improved lglock lockdep tracking, from Michel Lespinasse - [ assorted smaller updates, improvements, cleanups. ]" * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: generic-ipi/locking: Fix misleading smp_call_function_any() description hung_task debugging: Print more info when reporting the problem mutex: Avoid label warning when !CONFIG_MUTEX_SPIN_ON_OWNER mutex: Do not unnecessarily deal with waiters mutex: Fix/document access-once assumption in mutex_can_spin_on_owner() lglock: Update lockdep annotations to report recursive local locks lockdep: Introduce lock_acquire_exclusive()/shared() helper macros
2013-09-04Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: "Main RCU changes this cycle were: - Full-system idle detection. This is for use by Frederic Weisbecker's adaptive-ticks mechanism. Its purpose is to allow the timekeeping CPU to shut off its tick when all other CPUs are idle. - Miscellaneous fixes. - Improved rcutorture test coverage. - Updated RCU documentation" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits) nohz_full: Force RCU's grace-period kthreads onto timekeeping CPU nohz_full: Add full-system-idle state machine jiffies: Avoid undefined behavior from signed overflow rcu: Simplify _rcu_barrier() processing rcu: Make rcutorture emit online failures if verbose rcu: Remove unused variable from rcu_torture_writer() rcu: Sort rcutorture module parameters rcu: Increase rcutorture test coverage rcu: Add duplicate-callback tests to rcutorture doc: Fix memory-barrier control-dependency example rcu: Update RTFP documentation nohz_full: Add full-system-idle arguments to API nohz_full: Add full-system idle states and variables nohz_full: Add per-CPU idle-state tracking nohz_full: Add rcu_dyntick data for scalable detection of all-idle state nohz_full: Add Kconfig parameter for scalable detection of all-idle state nohz_full: Add testing information to documentation rcu: Eliminate unused APIs intended for adaptive ticks rcu: Select IRQ_WORK from TREE_PREEMPT_RCU rculist: list_first_or_null_rcu() should use list_entry_rcu() ...
2013-09-04direct-io: Handle O_(D)SYNC AIOChristoph Hellwig
Call generic_write_sync() from the deferred I/O completion handler if O_DSYNC is set for a write request. Also make sure various callers don't call generic_write_sync if the direct I/O code returns -EIOCBQUEUED. Based on an earlier patch from Jan Kara <jack@suse.cz> with updates from Jeff Moyer <jmoyer@redhat.com> and Darrick J. Wong <darrick.wong@oracle.com>. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-04direct-io: Implement generic deferred AIO completionsChristoph Hellwig
Add support to the core direct-io code to defer AIO completions to user context using a workqueue. This replaces opencoded and less efficient code in XFS and ext4 (we save a memory allocation for each direct IO) and will be needed to properly support O_(D)SYNC for AIO. The communication between the filesystem and the direct I/O code requires a new buffer head flag, which is a bit ugly but not avoidable until the direct I/O code stops abusing the buffer_head structure for communicating with the filesystems. Currently this creates a per-superblock unbound workqueue for these completions, which is taken from an earlier patch by Jan Kara. I'm not really convinced about this use and would prefer a "normal" global workqueue with a high concurrency limit, but this needs further discussion. JK: Fixed ext4 part, dynamic allocation of the workqueue. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-04i2c: rcar: add rcar-H2 supportNguyen Viet Dung
This patch modify I2C driver of rcar-H1 to usable on both rcar-H1 and rcar-H2. Signed-off-by: Nguyen Viet Dung <nv-dung@jinso.co.jp> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-09-03Merge tag 'for-3.12-rc1' of git://gitorious.org/linux-pwm/linux-pwmLinus Torvalds
Pull pwm changes from Thierry Reding: "A set of patches makes the device tree documentation for the various PWM drivers more consistent. Device tree support is added to the Renesas TPU driver. The sysfs interface now makes use of dev_groups. Other than that there is a healthy assortment of fixes and enhancements for minor issues that have shown up" * tag 'for-3.12-rc1' of git://gitorious.org/linux-pwm/linux-pwm: pwm: pxa: Use module_platform_driver pwm: tiehrpwm: add missing __iomem annotation pwm: tiecap: add CONFIG_PM_SLEEP to ecap_pwm_{save,restore}_context() pwm: simplify use of devm_ioremap_resource pwm: renesas-tpu: Add DT support ARM: dts: Use the PWM polarity flags pwm: Update DT bindings to reference pwm.txt for cells documentation pwm: Use the DT macro directly when parsing PWM DT flags pwm: Add PWM polarity flag macro for DT pwm: mxs: Check the return value from stmp_reset_block() pwm: convert class code to use dev_groups
2013-09-03Merge tag 'please-pull-pstore' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux Pull pstore changes from Tony Luck: "A big part of this is the addition of compression to the generic pstore layer so that all backends can use the pitiful amounts of storage they control more effectively. Three other small fixes/cleanups too. * tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: pstore/ram: (really) fix undefined usage of rounddown_pow_of_two pstore/ram: Read and write to the 'compressed' flag of pstore efi-pstore: Read and write to the 'compressed' flag of pstore erst: Read and write to the 'compressed' flag of pstore powerpc/pseries: Read and write to the 'compressed' flag of pstore pstore: Add file extension to pstore file if compressed pstore: Add decompression support to pstore pstore: Introduce new argument 'compressed' in the read callback pstore: Add compression support to pstore pstore/Kconfig: Select ZLIB_DEFLATE and ZLIB_INFLATE when PSTORE is selected pstore: Add new argument 'compressed' in pstore write callback powerpc/pseries: Remove (de)compression in nvram with pstore enabled pstore: d_alloc_name() doesn't return an ERR_PTR acpi/apei/erst: Add missing iounmap() on error in erst_exec_move_data()
2013-09-04add formats for dentry/file pathnamesAl Viro
New formats: %p[dD][234]?. The next pointer is interpreted as struct dentry * or struct file * resp. ('d' => dentry, 'D' => file) and the last component(s) of pathname are printed (%pd => just the last one, %pd2 => the last two, etc.) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-03kvm eventfd: switch to fdgetAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-03powerpc kvm: use fdgetAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-03switch fchmod() to fdgetAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-03switch epoll_ctl() to fdgetAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-03switch copy_module_from_fd() to fdgetAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-03git simplify nilfs check for busy subtreeAl Viro
Reviewed-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-03ibmasmfs: don't bother passing superblock when not neededAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-03don't pass superblock to hypfs_{mkdir,create*}Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>