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2014-08-16Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86Linus Torvalds
Pull x86 platform driver updates from Matthew Garrett: "A moderate number of changes, but nothing awfully significant. A lot of const cleanups, some reworking and additions to the rfkill quirks in the asus driver, a new driver for generating falling laptop events on Toshibas and some misc fixes. Maybe vendors have stopped inventing things" * 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: (41 commits) platform/x86: Enable build support for toshiba_haps Documentation: Add file about toshiba_haps module platform/x86: Toshiba HDD Active Protection Sensor asus-nb-wmi: Add wapf4 quirk for the U32U alienware-wmi: make hdmi_mux enabled on case-by-case basis ideapad-laptop: Constify DMI table and other r/o variables asus-nb-wmi.c: Rename x401u quirk to wapf4 compal-laptop: correct invalid hwmon name toshiba_acpi: Add Qosmio X75-A to the alt keymap dmi list toshiba_acpi: Add extra check to backlight code Fix log message about future removal of interface ideapad-laptop: Disable touchpad interface on Yoga models asus-nb-wmi: Add wapf4 quirk for the X550CC intel_ips: Make ips_mcp_limits variables static thinkpad_acpi: Mark volume_alsa_control_{vol,mute} as __initdata fujitsu-laptop: Mark fujitsu_dmi_table[] DMI table as __initconst hp-wmi: Add missing __init annotations to initialization code hp_accel: Constify ACPI and DMI tables fujitsu-tablet: Mark DMI callbacks as __init code dell-laptop: Mark dell_quirks[] DMI table as __initconst ...
2014-08-16Merge tag 'locks-v3.17-2' of git://git.samba.org/jlayton/linuxLinus Torvalds
Pull file locking bugfixes from Jeff Layton: "Most of these patches are to fix a long-standing regression that crept in when the BKL was removed from the file-locking code. The code was converted to use a conventional spinlock, but some fl_release_private ops can block and you can end up sleeping inside the lock. There's also a patch to make /proc/locks show delegations as 'DELEG'" * tag 'locks-v3.17-2' of git://git.samba.org/jlayton/linux: locks: update Locking documentation to clarify fl_release_private behavior locks: move locks_free_lock calls in do_fcntl_add_lease outside spinlock locks: defer freeing locks in locks_delete_lock until after i_lock has been dropped locks: don't reuse file_lock in __posix_lock_file locks: don't call locks_release_private from locks_copy_lock locks: show delegations as "DELEG" in /proc/locks
2014-08-16Documentation: Add file about toshiba_haps moduleAzael Avalos
This patch provides information about the Toshiba HDD Active Protection Sensor driver module toshiba_haps. Signed-off-by: Azael Avalos <coproscefalo@gmail.com> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2014-08-15drm/doc: Refer to proper source fileThierry Reding
Commit 21d70354bba9 ("drm: move drm_stub.c to drm_drv.c") moves the code from drm_stub.c into drm_drv.c. Update DocBook to include that instead. This also came in via other people, but all the same. Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-08-14Merge branch 'misc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull misc kbuild updates from Michal Marek: "This is the non-critical part of kbuild for 3.17-rc1: - make help hint to use make -s with make kernelrelease et al. - moved a kbuild document to Documentation/kbuild where it belongs - four new Coccinelle scripts, one dropped and one fixed - new make kselftest target to run various tests on the kernel" * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild: kselftest - new make target to build and run kernel selftests Coccinelle: Script to replace if and BUG with BUG_ON Coccinelle: Script to detect incorrect argument to sizeof Coccinelle: Script to use ARRAY_SIZE instead of division of two sizeofs Coccinelle: Script to detect cast after memory allocation coccinelle/null: solve parse error Documentation: headers_install.txt is part of kbuild kbuild: make -s should be used with kernelrelease/kernelversion/image_name
2014-08-14Merge branch 'kbuild' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild updates from Michal Marek: - make clean also considers $(extra-m) and $(extra-) to be consistent - cleanup and fixes in scripts/Makefile.host - allow to override the name of the Python 2 executable with make PYTHON=... (only needed for ia64 in practice) - option to split debugingo into *.dwo files to save disk space if the compiler supports it (CONFIG_DEBUG_INFO_SPLIT) - option to use dwarf4 debuginfo if the compiler supports it (CONFIG_DEBUG_INFO_DWARF4) - fix for disabling certain warnings with clang - fix for unneeded rebuild with dash when a command contains backslashes * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild: Fix handling of backslashes in *.cmd files kbuild, LLVMLinux: Supress warnings unless W=1-3 Kbuild: Add a option to enable dwarf4 v2 kbuild: Support split debug info v4 kbuild: allow to override Python command name kbuild: clean-up and bug fix of scripts/Makefile.host kbuild: clean up scripts/Makefile.host kbuild: drop shared library support from Makefile.host kbuild: fix a bug of C++ host program handling kbuild: fix a typo in scripts/Makefile.host scripts/Makefile.clean: clean also $(extra-m) and $(extra-)
2014-08-14Merge tag 'rdma-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull infiniband/rdma updates from Roland Dreier: "Main set of InfiniBand/RDMA updates for 3.17 merge window: - MR reregistration support - MAD support for RMPP in userspace - iSER and SRP initiator updates - ocrdma hardware driver updates - other fixes..." * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (52 commits) IB/srp: Fix return value check in srp_init_module() RDMA/ocrdma: report asic-id in query device RDMA/ocrdma: Update sli data structure for endianness RDMA/ocrdma: Obtain SL from device structure RDMA/uapi: Include socket.h in rdma_user_cm.h IB/srpt: Handle GID change events IB/mlx5: Use ARRAY_SIZE instead of sizeof/sizeof[0] IB/mlx4: Use ARRAY_SIZE instead of sizeof/sizeof[0] RDMA/amso1100: Check for integer overflow in c2_alloc_cq_buf() IPoIB: Remove unnecessary test for NULL before debugfs_remove() IB/mad: Add user space RMPP support IB/mad: add new ioctl to ABI to support new registration options IB/mad: Add dev_notice messages for various umad/mad registration failures IB/mad: Update module to [pr|dev]_* style print messages IB/ipoib: Avoid multicast join attempts with invalid P_key IB/umad: Update module to [pr|dev]_* style print messages IB/ipoib: Avoid flushing the workqueue from worker context IB/ipoib: Use P_Key change event instead of P_Key polling mechanism IB/ipath: Add P_Key change event support mlx4_core: Add support for secure-host and SMP firewall ...
2014-08-14Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds
Pull device tree updates from Grant Likely: "The branch contains the following device tree changes the v3.17 merge window: Group changes to the device tree. In preparation for adding device tree overlay support, OF_DYNAMIC is reworked so that a set of device tree changes can be prepared and applied to the tree all at once. OF_RECONFIG notifiers see the most significant change here so that users always get a consistent view of the tree. Notifiers generation is moved from before a change to after it, and notifiers for a group of changes are emitted after the entire block of changes have been applied Automatic console selection from DT. Console drivers can now use of_console_check() to see if the device node is specified as a console device. If so then it gets added as a preferred console. UART devices get this support automatically when uart_add_one_port() is called. DT unit tests no longer depend on pre-loaded data in the device tree. Data is loaded dynamically at the start of unit tests, and then unloaded again when the tests have completed. Also contains a few bugfixes for reserved regions and early memory setup" * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux: (21 commits) of: Fixing OF Selftest build error drivers: of: add automated assignment of reserved regions to client devices of: Use proper types for checking memory overflow of: typo fix in __of_prop_dup() Adding selftest testdata dynamically into live tree of: Add todo tasklist for Devicetree of: Transactional DT support. of: Reorder device tree changes and notifiers of: Move dynamic node fixups out of powerpc and into common code of: Make sure attached nodes don't carry along extra children of: Make devicetree sysfs update functions consistent. of: Create unlocked versions of node and property add/remove functions OF: Utility helper functions for dynamic nodes of: Move CONFIG_OF_DYNAMIC code into a separate file of: rename of_aliases_mutex to just of_mutex of/platform: Fix of_platform_device_destroy iteration of devices of: Migrate of_find_node_by_name() users to for_each_node_by_name() tty: Update hypervisor tty drivers to use core stdout parsing code. arm/versatile: Add the uart as the stdout device. of: Enable console on serial ports specified by /chosen/stdout-path ...
2014-08-14Merge tag 'dm-3.17-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper changes from Mike Snitzer: - Allow the thin target to paired with any size external origin; also allow thin snapshots to be larger than the external origin. - Add support for quickly loading a repetitive pattern into the dm-switch target. - Use per-bio data in the dm-crypt target instead of always using a mempool for each allocation. Required switching to kmalloc alignment for the bio slab. - Fix DM core to properly stack the QUEUE_FLAG_NO_SG_MERGE flag - Fix the dm-cache and dm-thin targets' export of the minimum_io_size to match the data block size -- this fixes an issue where mkfs.xfs would improperly infer raid striping was in place on the underlying storage. - Small cleanups in dm-io, dm-mpath and dm-cache * tag 'dm-3.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm table: propagate QUEUE_FLAG_NO_SG_MERGE dm switch: efficiently support repetitive patterns dm switch: factor out switch_region_table_read dm cache: set minimum_io_size to cache's data block size dm thin: set minimum_io_size to pool's data block size dm crypt: use per-bio data block: use kmalloc alignment for bio slab dm table: make dm_table_supports_discards static dm cache metadata: use dm-space-map-metadata.h defined size limits dm cache: fail migrations in the do_worker error path dm cache: simplify deferred set reference count increments dm thin: relax external origin size constraints dm thin: switch to an atomic_t for tracking pending new block preparations dm mpath: eliminate pg_ready() wrapper dm io: simplify dec_count and sync_io
2014-08-14Merge tag 'mmc-v3.17-1' of git://git.linaro.org/people/ulf.hansson/mmcLinus Torvalds
Pull MMC updates from Ulf Hansson: "Me and Chris Ball decided to try out using my MMC tree as the primary one, to simplify handling of patches. This pull does thus contains all the MMC patches for 3.17 rc1, no pull from Chris this time. Details: MMC core: - forward compatibility for eMMC - fix some blacklisted cards with broken secure discard MMC host: - mmci: Add support for Qualcomm variant - mmci: Fix regression for arm_variant - sdhci: Various fixes and cleanups - sdhci: Improve external VDD regulator support - sdhci: Support for DDR50 1.8V mode for BayTrail - sdhci-st: Add driver for ST SDHCI controller - sh-mmcif: DMA fixes - omap_hsmmc: Add support for SDIO interrupts - sdhci-pci: Add support for Intel Quark X1000 - dw_mmc: Update the reset sequence - s3cmci: port DMA code to dmaengine API" * tag 'mmc-v3.17-1' of git://git.linaro.org/people/ulf.hansson/mmc: (67 commits) mmc: dw_mmc: modify the dt-binding for removing slot-node and supports-highspeed mmc: dw_mmc: Slot quirk "disable-wp" is deprecated. mmc: mmci: Reverse IRQ handling for the arm_variant mmc: mmci: Move all CMD irq handling to mmci_cmd_irq() mmc: mmci: Remove redundant check of status for DATA irq mmc: dw_mmc: change to use recommended reset procedure mmc: sdhci-pxav3: Use devm_* managed helpers mmc: tmio: Configure DMA slave bus width mmc: sh_mmcif: Configure DMA slave bus width mmc: sh_mmcif: Fix DMA slave address configuration mmc: sh_mmcif: Document DT bindings mmc: sdhci-pci: remove PCI PM functions in suspend/resume callback mmc: Do not advertise secure discard if it is blacklisted mmc: sdhci-msm: Get COMPILE_TEST support mmc: sdhci-msm: Remove unnecessary header file inclusion mmc: sdhci-msm: Fix the binding example mmc: sdhci: add DDR50 1.8V mode support for BayTrail eMMC Controller mmc: sdhci: Preset value not supported in Baytrail eMMC mmc: MMC_USDHI6ROL0 should depend on HAS_DMA mmc: MMC_SH_MMCIF should depend on HAS_DMA ...
2014-08-14locks: update Locking documentation to clarify fl_release_private behaviorJeff Layton
Acked-by: J. Bruce Fields <bfields@fieldses.org> Signed-off-by: Jeff Layton <jlayton@primarydata.com>
2014-08-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "Several networking final fixes and tidies for the merge window: 1) Changes during the merge window unintentionally took away the ability to build bluetooth modular, fix from Geert Uytterhoeven. 2) Several phy_node reference count bug fixes from Uwe Kleine-König. 3) Fix ucc_geth build failures, also from Uwe Kleine-König. 4) Fix klog false positivies when netlink messages go to network taps, by properly resetting the network header. Fix from Daniel Borkmann. 5) Sizing estimate of VF netlink messages is too small, from Jiri Benc. 6) New APM X-Gene SoC ethernet driver, from Iyappan Subramanian. 7) VLAN untagging is erroneously dependent upon whether the VLAN module is loaded or not, but there are generic dependencies that matter wrt what can be expected as the SKB enters the stack. Make the basic untagging generic code, and do it unconditionally. From Vlad Yasevich. 8) xen-netfront only has so many slots in it's transmit queue so linearize packets that have too many frags. From Zoltan Kiss. 9) Fix suspend/resume PHY handling in bcmgenet driver, from Florian Fainelli" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (55 commits) net: bcmgenet: correctly resume adapter from Wake-on-LAN net: bcmgenet: update UMAC_CMD only when link is detected net: bcmgenet: correctly suspend and resume PHY device net: bcmgenet: request and enable main clock earlier net: ethernet: myricom: myri10ge: myri10ge.c: Cleaning up missing null-terminate after strncpy call xen-netfront: Fix handling packets on compound pages with skb_linearize net: fec: Support phys probed from devicetree and fixed-link smsc: replace WARN_ON() with WARN_ON_SMP() xen-netback: Don't deschedule NAPI when carrier off net: ethernet: qlogic: qlcnic: Remove duplicate object file from Makefile wan: wanxl: Remove typedefs from struct names m68k/atari: EtherNEC - ethernet support (ne) net: ethernet: ti: cpmac.c: Cleaning up missing null-terminate after strncpy call hdlc: Remove typedefs from struct names airo_cs: Remove typedef local_info_t atmel: Remove typedef atmel_priv_ioctl com20020_cs: Remove typedef com20020_dev_t ethernet: amd: Remove typedef local_info_t net: Always untag vlan-tagged traffic on input. drivers: net: Add APM X-Gene SoC ethernet driver support. ...
2014-08-13Merge branch 'x86-xsave-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86/xsave changes from Peter Anvin: "This is a patchset to support the XSAVES instruction required to support context switch of supervisor-only features in upcoming silicon. This patchset missed the 3.16 merge window, which is why it is based on 3.15-rc7" * 'x86-xsave-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, xsave: Add forgotten inline annotation x86/xsaves: Clean up code in xstate offsets computation in xsave area x86/xsave: Make it clear that the XSAVE macros use (%edi)/(%rdi) Define kernel API to get address of each state in xsave area x86/xsaves: Enable xsaves/xrstors x86/xsaves: Call booting time xsaves and xrstors in setup_init_fpu_buf x86/xsaves: Save xstate to task's xsave area in __save_fpu during booting time x86/xsaves: Add xsaves and xrstors support for booting time x86/xsaves: Clear reserved bits in xsave header x86/xsaves: Use xsave/xrstor for saving and restoring user space context x86/xsaves: Use xsaves/xrstors for context switch x86/xsaves: Use xsaves/xrstors to save and restore xsave area x86/xsaves: Define a macro for handling xsave/xrstor instruction fault x86/xsaves: Define macros for xsave instructions x86/xsaves: Change compacted format xsave area header x86/alternative: Add alternative_input_2 to support alternative with two features and input x86/xsaves: Add a kernel parameter noxsaves to disable xsaves/xrstors
2014-08-13Merge tag 'xfs-for-linus-3.17-rc1' of git://oss.sgi.com/xfs/xfsLinus Torvalds
Pull xfs update from Dave Chinner: "This update contains: - conversion of the XFS core to pass negative error numbers - restructing of core XFS code that is shared with userspace to fs/xfs/libxfs - introduction of sysfs interface for XFS - bulkstat refactoring - demand driven speculative preallocation removal - XFS now always requires 64 bit sectors to be configured - metadata verifier changes to ensure CRCs are calculated during log recovery - various minor code cleanups - miscellaneous bug fixes The diffstat is kind of noisy because of the restructuring of the code to make kernel/userspace code sharing simpler, along with the XFS wide change to use the standard negative error return convention (at last!)" * tag 'xfs-for-linus-3.17-rc1' of git://oss.sgi.com/xfs/xfs: (45 commits) xfs: fix coccinelle warnings xfs: flush both inodes in xfs_swap_extents xfs: fix swapext ilock deadlock xfs: kill xfs_vnode.h xfs: kill VN_MAPPED xfs: kill VN_CACHED xfs: kill VN_DIRTY() xfs: dquot recovery needs verifiers xfs: quotacheck leaves dquot buffers without verifiers xfs: ensure verifiers are attached to recovered buffers xfs: catch buffers written without verifiers attached xfs: avoid false quotacheck after unclean shutdown xfs: fix rounding error of fiemap length parameter xfs: introduce xfs_bulkstat_ag_ichunk xfs: require 64-bit sector_t xfs: fix uflags detection at xfs_fs_rm_xquota xfs: remove XFS_IS_OQUOTA_ON macros xfs: tidy up xfs_set_inode32 xfs: allow inode allocations in post-growfs disk space xfs: mark xfs_qm_quotacheck as static ...
2014-08-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph updates from Sage Weil: "There is a lot of refactoring and hardening of the libceph and rbd code here from Ilya that fix various smaller bugs, and a few more important fixes with clone overlap. The main fix is a critical change to the request_fn handling to not sleep that was exposed by the recent mutex changes (which will also go to the 3.16 stable series). Yan Zheng has several fixes in here for CephFS fixing ACL handling, time stamps, and request resends when the MDS restarts. Finally, there are a few cleanups from Himangi Saraogi based on Coccinelle" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (39 commits) libceph: set last_piece in ceph_msg_data_pages_cursor_init() correctly rbd: remove extra newlines from rbd_warn() messages rbd: allocate img_request with GFP_NOIO instead GFP_ATOMIC rbd: rework rbd_request_fn() ceph: fix kick_requests() ceph: fix append mode write ceph: fix sizeof(struct tYpO *) typo ceph: remove redundant memset(0) rbd: take snap_id into account when reading in parent info rbd: do not read in parent info before snap context rbd: update mapping size only on refresh rbd: harden rbd_dev_refresh() and callers a bit rbd: split rbd_dev_spec_update() into two functions rbd: remove unnecessary asserts in rbd_dev_image_probe() rbd: introduce rbd_dev_header_info() rbd: show the entire chain of parent images ceph: replace comma with a semicolon rbd: use rbd_segment_name_free() instead of kfree() ceph: check zero length in ceph_sync_read() ceph: reset r_resend_mds after receiving -ESTALE ...
2014-08-11net: fec: Support phys probed from devicetree and fixed-linkUwe Kleine-König
This adds support for specifying the phy to be used with the fec in the devicetree using the standard phy-handle property and also supports fixed-link. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-11Documentation: dts: Add bindings for APM X-Gene SoC ethernet driverIyappan Subramanian
This patch adds documentation for APM X-Gene SoC ethernet DTS binding. Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: Ravi Patel <rapatel@apm.com> Signed-off-by: Keyur Chudgar <kchudgar@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-11Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs updates from Al Viro: "Stuff in here: - acct.c fixes and general rework of mnt_pin mechanism. That allows to go for delayed-mntput stuff, which will permit mntput() on deep stack without worrying about stack overflows - fs shutdown will happen on shallow stack. IOW, we can do Eric's umount-on-rmdir series without introducing tons of stack overflows on new mntput() call chains it introduces. - Bruce's d_splice_alias() patches - more Miklos' rename() stuff. - a couple of regression fixes (stable fodder, in the end of branch) and a fix for API idiocy in iov_iter.c. There definitely will be another pile, maybe even two. I'd like to get Eric's series in this time, but even if we miss it, it'll go right in the beginning of for-next in the next cycle - the tricky part of prereqs is in this pile" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (40 commits) fix copy_tree() regression __generic_file_write_iter(): fix handling of sync error after DIO switch iov_iter_get_pages() to passing maximal number of pages fs: mark __d_obtain_alias static dcache: d_splice_alias should detect loops exportfs: update Exporting documentation dcache: d_find_alias needn't recheck IS_ROOT && DCACHE_DISCONNECTED dcache: remove unused d_find_alias parameter dcache: d_obtain_alias callers don't all want DISCONNECTED dcache: d_splice_alias should ignore DCACHE_DISCONNECTED dcache: d_splice_alias mustn't create directory aliases dcache: close d_move race in d_splice_alias dcache: move d_splice_alias namei: trivial fix to vfs_rename_dir comment VFS: allow ->d_manage() to declare -EISDIR in rcu_walk mode. cifs: support RENAME_NOREPLACE hostfs: support rename flags shmem: support RENAME_EXCHANGE shmem: support RENAME_NOREPLACE btrfs: add RENAME_NOREPLACE ...
2014-08-11Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull slave-dma updates from Vinod Koul: "Some notable changes are: - new driver for AMBA AXI NBPF by Guennadi - new driver for sun6i controller by Maxime - pl330 drivers fixes from Lar's - sh-dma updates and fixes from Laurent, Geert and Kuninori - Documentation updates from Geert - drivers fixes and updates spread over dw, edma, freescale, mpc512x etc.." * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (72 commits) dmaengine: sun6i: depends on RESET_CONTROLLER dma: at_hdmac: fix invalid remaining bytes detection dmaengine: nbpfaxi: don't build this driver where it cannot be used dmaengine: nbpf_error_get_channel() can be static dma: pl08x: Use correct specifier for size_t values dmaengine: Remove the context argument to the prep_dma_cyclic operation dmaengine: nbpfaxi: convert to tasklet dmaengine: nbpfaxi: fix a theoretical race dmaengine: add a driver for AMBA AXI NBPF DMAC IP cores dmaengine: add device tree binding documentation for the nbpfaxi driver dmaengine: edma: Do not register second device when booted with DT dmaengine: edma: Do not change the error code returned from edma_alloc_slot dmaengine: rcar-dmac: Add device tree bindings documentation dmaengine: shdma: Allocate cyclic sg list dynamically dmaengine: shdma: Make channel filter ignore unrelated devices dmaengine: sh: Rework Kconfig and Makefile dmaengine: sun6i: Fix memory leaks dmaengine: sun6i: Free the interrupt before killing the tasklet dmaengine: sun6i: Remove switch statement from buswidth convertion routine dmaengine: of: kconfig: select DMA_ENGINE when DMA_OF is selected ...
2014-08-11Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal updates from Zhang Rui: "Specifics: - adds full support for 2 types of Thermal Controllers produced by STMicroelectronics. One is a more traditional memory mapped variant, the other is controlled solely by system configuration registers. From Lee Jones. - add TMU (Thermal Management Unit) support for Exynos3250 Soc. From Chanwoo Choi. - add critical and passive trip point support for int3403 thermal driver. From Srinivas Pandruvada. - a couple of small fixes/cleanups from Javi Merino, and Geert Uytterhoeven" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: thermal: document struct thermal_zone_device and thermal_governor thermal: cpu_cooling: fix typo highjack -> hijack thermal: rcar: Document SoC-specific bindings thermal: samsung: Add TMU support for Exynos3250 SoC thermal: exynos: fix ordering in exynos_tmu_remove() thermal: allow building dove_thermal with mvebu thermal: sti: Add support for ST's Memory Mapped based Thermal controller thermal: sti: Add support for ST's System Config Register based Thermal controller thermal: sti: Introduce ST Thermal core code thermal: sti: Supply Device Tree documentation Thermal: int3403: Add CRT and PSV trip
2014-08-11Merge branch 'devicetree/next-overlay' into devicetree/nextGrant Likely
Conflicts: drivers/of/testcase-data/testcases.dts
2014-08-11mmc: dw_mmc: modify the dt-binding for removing slot-node and supports-highspeedJaehoon Chung
Almost all SoCs use one slot per host controller. (Even if controller can support the multiple slot, Recommend to use one slot per host controller.) Don't use the slot-node and deprecate the "supports-highspeed" property. Instead, use the cap-mmc/sd-highspeed. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Tushar Behera <trblinux@gmail.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Sachin Kamat <sachin.kamat@samsung.com> Acked-by: Seungwon Jeon <tgih.jun@samsung.com> Reviewed-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-08-10IB/mad: add new ioctl to ABI to support new registration optionsIra Weiny
Registrations options are specified through flags. Definitions of flags will be in subsequent patches. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-08-09Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull CIFS updates from Steve French: "The most visible change in this set is the additional of multi-credit support for SMB2/SMB3 which dramatically improves the large file i/o performance for these dialects and significantly increases the maximum i/o size used on the wire for SMB2/SMB3. Also reconnection behavior after network failure is improved" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: (35 commits) Add worker function to set allocation size [CIFS] Fix incorrect hex vs. decimal in some debug print statements update CIFS TODO list Add Pavel to contributor list in cifs AUTHORS file Update cifs version CIFS: Fix STATUS_CANNOT_DELETE error mapping for SMB2 CIFS: Optimize readpages in a short read case on reconnects CIFS: Optimize cifs_user_read() in a short read case on reconnects CIFS: Improve indentation in cifs_user_read() CIFS: Fix possible buffer corruption in cifs_user_read() CIFS: Count got bytes in read_into_pages() CIFS: Use separate var for the number of bytes got in async read CIFS: Indicate reconnect with ECONNABORTED error code CIFS: Use multicredits for SMB 2.1/3 reads CIFS: Fix rsize usage for sync read CIFS: Fix rsize usage in user read CIFS: Separate page reading from user read CIFS: Fix rsize usage in readpages CIFS: Separate page search from readpages CIFS: Use multicredits for SMB 2.1/3 writes ...
2014-08-09Merge branch 'i2c/for-3.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "Highlights: - class based instantiation finally dropped for most embedded drivers bringing boot up performance gains - removed two drivers (one outdated, one a duplicate) - ACPI has now operation region support (thanks to Lan Tianyu) - the i2c-stub driver got overhauled and gained new features to become more useful when writing i2c client drivers (thanks to Guenter Roeck and Jean Delvare) The rest is driver bugfixes, added bindings/ids, cleanups..." * 'i2c/for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (43 commits) i2c: mpc: delete unneeded test before of_node_put i2c: rk3x: fix interrupt handling issue i2c: imx: Fix format warning for dev_dbg i2c: qup: disable clks and return instead of just returning error i2c: exynos5: always enable HSI2C i2c: designware: add new bindings i2c: gpio: Drop dead code in i2c_gpio_remove i2c: pca954x: put the mux to disconnected state after resume i2c: st: Update i2c timings drivers/i2c/busses: use correct type for dma_map/unmap i2c: i2c-st: Use %pa to print 'resource_size_t' type i2c: s3c2410: resume the I2C controller earlier i2c: stub: Avoid an array overrun on I2C block transfers i2c: i801: Add device ID for Intel Wildcat Point PCH i2c: i801: Fix the alignment of the device table i2c: stub: Add support for banked register ranges i2c: stub: Remember the number of emulated chips i2c: stub: Add support for SMBus block commands i2c: efm32: correct namespacing of location property i2c: exynos5: remove extra line and fix an assignment ...
2014-08-09Documentation: SubmittingPatches: overhaul changelog descriptionJohannes Weiner
Maintainers often repeat the same feedback on poorly written changelogs - describe the problem, justify your changes, quantify optimizations, describe user-visible changes - but our documentation on writing changelogs doesn't include these things. Fix that. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-09Documentation: freefall: simplify pathnamesPavel Machek
Copying to local variable is actually not neccessary, if all we need to do is snprintf(). This also removes problem where devname could be missing zero termination. Reported-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-09Documentation: add How to avoid botching up ioctlsMichael Ellerman
I pointed some folks at this and they wondered why it wasn't in the kernel Documentation directory. So now it is. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08Merge tag 'for-linus-20140808' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull MTD updates from Brian Norris: "AMD-compatible CFI driver: - Support OTP programming for Micron M29EW family - Increase buffer write timeout, according to detected flash parameter info NAND - Add helpers for retrieving ONFI timing modes - GPMI: provide option to disable bad block marker swapping (required for Ka-On electronics platforms) SPI NOR - EON EN25QH128 support - Support new Flag Status Register (FSR) on a few Micron flash Common - New sysfs entries for bad block and ECC stats And a few miscellaneous refactorings, cleanups, and driver improvements" * tag 'for-linus-20140808' of git://git.infradead.org/linux-mtd: (31 commits) mtd: gpmi: make blockmark swapping optional mtd: gpmi: remove line breaks from error messages and improve wording mtd: gpmi: remove useless (void *) type casts and spaces between type casts and variables mtd: atmel_nand: NFC: support multiple interrupt handling mtd: atmel_nand: implement the nfc_device_ready() by checking the R/B bit mtd: atmel_nand: add NFC status error check mtd: atmel_nand: make ecc parameters same as definition mtd: nand: add ONFI timing mode to nand_timings converter mtd: nand: define struct nand_timings mtd: cfi_cmdset_0002: fix do_write_buffer() timeout error mtd: denali: use 8 bytes for READID command mtd/ftl: fix the double free of the buffers allocated in build_maps() mtd: phram: Fix whitespace issues mtd: spi-nor: add support for EON EN25QH128 mtd: cfi_cmdset_0002: Add support for locking OTP memory mtd: cfi_cmdset_0002: Add support for writing OTP memory mtd: cfi_cmdset_0002: Invalidate cache after entering/exiting OTP memory mtd: cfi_cmdset_0002: Add support for reading OTP mtd: spi-nor: add support for flag status register on Micron chips mtd: Account for BBT blocks when a partition is being allocated ...
2014-08-08Merge tag 'fbdev-3.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull fbdev updates from Tomi Valkeinen: - much better HDMI infoframe support for OMAP - Cirrus Logic CLPS711X framebuffer driver - DT support for PL11x CLCD driver - various small fixes * tag 'fbdev-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (35 commits) OMAPDSS: DSI: fix depopulating dsi peripherals video: hyperv: hyperv_fb: refresh the VM screen by force on VM panic video: ARM CLCD: Fix DT-related build problems drivers: video: fbdev: atmel_lcdfb.c: Add ability to inverted backlight PWM. video: ARM CLCD: Add DT support drm/omap: Add infoframe & dvi/hdmi mode support OMAPDSS: HDMI: remove the unused code OMAPDSS: HDMI5: add support to set infoframe & HDMI mode OMAPDSS: HDMI4: add support to set infoframe & HDMI mode OMAPDSS: HDMI: add infoframe and hdmi_dvi_mode fields OMAPDSS: add hdmi ops to hdmi-connector and tpd12s015 OMAPDSS: add hdmi ops to hdmi_ops and omap_dss_driver OMAPDSS: HDMI: remove custom avi infoframe OMAPDSS: HDMI5: use common AVI infoframe support OMAPDSS: HDMI4: use common AVI infoframe support OMAPDSS: Kconfig: select HDMI OMAPDSS: HDMI: fix name conflict OMAPDSS: DISPC: clean up dispc_mgr_timings_ok OMAPDSS: DISPC: reject interlace for lcd out OMAPDSS: DISPC: fix debugfs reg dump ...
2014-08-08Merge tag 'pwm/for-3.17-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm changes from Thierry Reding: "The set of changes for this merge window contains two new drivers: one for Rockchip SoCs and another for STMicroelectronics STiH4xx SoCs. The remainder of the changes are the usual small cleanups such as removing redundant OOM messages, signalling that a PWM chip's operations can sleep and removing an unneeded dependency" * tag 'pwm/for-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: pwm: rockchip: Added to support for RK3288 SoC pwm: rockchip: document RK3288 SoC compatible pwm: sti: Remove PWM period table pwm: sti: Sync between enable/disable calls pwm: sti: Ensure same period values for all channels pwm: sti: Fix PWM prescaler handling pwm: sti: Supply Device Tree binding documentation for ST's PWM IP pwm: sti: Add new driver for ST's PWM IP pwm: imx: set can_sleep flag for imx_pwm pwm: lpss: remove dependency on clk framework pwm: pwm-tipwmss: remove unnecessary OOM messages pwm: rockchip: document device tree bindings pwm: add Rockchip SoC PWM support
2014-08-08Merge tag 'gpio-v3.17-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO update from Linus Walleij: "This is the bulk of GPIO changes for the v3.17 development cycle, and this time we got a lot of action going on and it will continue: - The core GPIO library implementation has been split up in three different files: - gpiolib.c for the latest and greatest and shiny GPIO library code using GPIO descriptors only - gpiolib-legacy.c for the old integer number space API that we are phasing out gradually - gpiolib-sysfs.c for the sysfs interface that we are not entirely happy with, but has to live on for ABI compatibility - Add a flags argument to *gpiod_get* functions, with some backward-compatibility macros to ease transitions. We should have had the flags there from the beginning it seems, now we need to clean up the mess. There is a plan on how to move forward here devised by Alexandre Courbot and Mark Brown - Split off a special <linux/gpio/machine.h> header for the board gpio table registration, as per example from the regulator subsystem - Start to kill off the return value from gpiochip_remove() by removing the __must_check attribute and removing all checks inside the drivers/gpio directory. The rationale is: well what were we supposed to do if there is an error code? Not much: print an error message. And gpiolib already does that. So make this function return void eventually - Some cleanups of hairy gpiolib code, make some functions not to be used outside the library private and make sure they are not exported, remove gpiod_lock/unlock_as_irq() as the existing function is for driver-internal use and fine as it is, delete gpio_ensure_requested() as it is not meaningful anymore - Support the GPIOF_ACTIVE_LOW flag from gpio_request_one() function calls, which is logical since this is already supported when referencing GPIOs from e.g. device trees - Switch STMPE, intel-mid, lynxpoint and ACPI (!) to use the gpiolib irqchip helpers cutting down on GPIO irqchip boilerplate a bit more - New driver for the Zynq GPIO block - The usual incremental improvements around a bunch of drivers - Janitorial syntactic and semantic cleanups by Jingoo Han, and Rickard Strandqvist especially" * tag 'gpio-v3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (37 commits) MAINTAINERS: update GPIO include files gpio: add missing includes in machine.h gpio: add flags argument to gpiod_get*() functions MAINTAINERS: Update Samsung pin control entry gpio / ACPI: Move event handling registration to gpiolib irqchip helpers gpio: lynxpoint: Convert to use gpiolib irqchip gpio: split gpiod board registration into machine header gpio: remove gpio_ensure_requested() gpio: remove useless check in gpiolib_sysfs_init() gpiolib: Export gpiochip_request_own_desc and gpiochip_free_own_desc gpio: move gpio_ensure_requested() into legacy C file gpio: remove gpiod_lock/unlock_as_irq() gpio: make gpiochip_get_desc() gpiolib-private gpio: simplify gpiochip_export() gpio: remove export of private of_get_named_gpio_flags() gpio: Add support for GPIOF_ACTIVE_LOW to gpio_request_one functions gpio: zynq: Clear pending interrupt when enabling a IRQ gpio: drop retval check enforcing from gpiochip_remove() gpio: remove all usage of gpio_remove retval in driver/gpio devicetree: Add Zynq GPIO devicetree bindings documentation ...
2014-08-08Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - big update to Wacom driver by Benjamin Tissoires, converting it to HID infrastructure and unifying USB and Bluetooth models - large update to ALPS driver by Hans de Goede, which adds support for newer touchpad models as well as cleans up and restructures the code - more changes to Atmel MXT driver, including device tree support - new driver for iPaq x3xxx touchscreen - driver for serial Wacom tablets - driver for Microchip's CAP1106 - assorted cleanups and improvements to existing drover and input core * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (93 commits) Input: wacom - update the ABI doc according to latest changes Input: wacom - only register once the MODULE_* macros Input: HID - remove hid-wacom Bluetooth driver Input: wacom - add copyright note and bump version to 2.0 Input: wacom - remove passing id for wacom_set_report Input: wacom - check for bluetooth protocol while setting OLEDs Input: wacom - handle Intuos 4 BT in wacom.ko Input: wacom - handle Graphire BT tablets in wacom.ko Input: wacom - prepare the driver to include BT devices Input: hyperv-keyboard - register as a wakeup source Input: imx_keypad - remove ifdef round PM methods Input: jornada720_ts - get rid of space indentation and use tab Input: jornada720_ts - switch to using managed resources Input: alps - Rushmore and v7 resolution support Input: mcs5000_ts - remove ifdef around power management methods Input: mcs5000_ts - protect PM functions with CONFIG_PM_SLEEP Input: ads7846 - release resources on failure for clean exit Input: wacom - add support for 0x12C ISDv4 sensor Input: atmel_mxt_ts - use deep sleep mode when stopped ARM: dts: am437x-gp-evm: Update binding for touchscreen size ...
2014-08-08Merge branch 'akpm' (second patchbomb from Andrew Morton)Linus Torvalds
Merge more incoming from Andrew Morton: "Two new syscalls: memfd_create in "shm: add memfd_create() syscall" kexec_file_load in "kexec: implementation of new syscall kexec_file_load" And: - Most (all?) of the rest of MM - Lots of the usual misc bits - fs/autofs4 - drivers/rtc - fs/nilfs - procfs - fork.c, exec.c - more in lib/ - rapidio - Janitorial work in filesystems: fs/ufs, fs/reiserfs, fs/adfs, fs/cramfs, fs/romfs, fs/qnx6. - initrd/initramfs work - "file sealing" and the memfd_create() syscall, in tmpfs - add pci_zalloc_consistent, use it in lots of places - MAINTAINERS maintenance - kexec feature work" * emailed patches from Andrew Morton <akpm@linux-foundation.org: (193 commits) MAINTAINERS: update nomadik patterns MAINTAINERS: update usb/gadget patterns MAINTAINERS: update DMA BUFFER SHARING patterns kexec: verify the signature of signed PE bzImage kexec: support kexec/kdump on EFI systems kexec: support for kexec on panic using new system call kexec-bzImage64: support for loading bzImage using 64bit entry kexec: load and relocate purgatory at kernel load time purgatory: core purgatory functionality purgatory/sha256: provide implementation of sha256 in purgaotory context kexec: implementation of new syscall kexec_file_load kexec: new syscall kexec_file_load() declaration kexec: make kexec_segment user buffer pointer a union resource: provide new functions to walk through resources kexec: use common function for kimage_normal_alloc() and kimage_crash_alloc() kexec: move segment verification code in a separate function kexec: rename unusebale_pages to unusable_pages kernel: build bin2c based on config option CONFIG_BUILD_BIN2C bin2c: move bin2c in scripts/basic shm: wait for pins to be released when sealing ...
2014-08-08panic: add TAINT_SOFTLOCKUPJosh Hunt
This taint flag will be set if the system has ever entered a softlockup state. Similar to TAINT_WARN it is useful to know whether or not the system has been in a softlockup state when debugging. [akpm@linux-foundation.org: apply the taint before calling panic()] Signed-off-by: Josh Hunt <johunt@akamai.com> Cc: Jason Baron <jbaron@akamai.com> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08rapidio/tsi721_dma: rework scatter-gather list handlingAlexandre Bounine
Rework Tsi721 RapidIO DMA engine support to allow handling data scatter/gather lists longer than number of hardware buffer descriptors in the DMA channel's descriptor list. The current implementation of Tsi721 DMA transfers requires that number of entries in a scatter/gather list provided by a caller of dmaengine_prep_rio_sg() should not exceed number of allocated hardware buffer descriptors. This patch removes the limitation by processing long scatter/gather lists by sections that can be transferred using hardware descriptor ring of configured size. It also introduces a module parameter "dma_desc_per_channel" to allow run-time configuration of Tsi721 hardware buffer descriptor rings. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com> Cc: Stef van Os <stef.van.os@prodrive-technologies.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08nilfs2: add /sys/fs/nilfs2/<device>/mounted_snapshots/<snapshot> groupVyacheslav Dubeyko
This patch adds creation of <snapshot> group for every mounted snapshot in /sys/fs/nilfs2/<device>/mounted_snapshots group. The group contains details about mounted snapshot: (1) inodes_count - show number of inodes for snapshot. (2) blocks_count - show number of blocks for snapshot. Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Michael L. Semon <mlsemon35@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08nilfs2: add /sys/fs/nilfs2/<device>/mounted_snapshots groupVyacheslav Dubeyko
This patch adds creation of /sys/fs/nilfs2/<device>/mounted_snapshots group. The mounted_snapshots group contains group for every mounted snapshot. Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Michael L. Semon <mlsemon35@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08nilfs2: add /sys/fs/nilfs2/<device>/checkpoints groupVyacheslav Dubeyko
This patch adds creation of /sys/fs/nilfs2/<device>/checkpoints group. The checkpoints group contains attributes that describe details about volume's checkpoints: (1) checkpoints_number - show number of checkpoints on volume. (2) snapshots_number - show number of snapshots on volume. (3) last_seg_checkpoint - show checkpoint number of the latest segment. (4) next_checkpoint - show next checkpoint number. Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Michael L. Semon <mlsemon35@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08nilfs2: add /sys/fs/nilfs2/<device>/segments groupVyacheslav Dubeyko
This patch adds creation of /sys/fs/nilfs2/<device>/segments group. The segments group contains attributes that describe details about volume's segments: (1) segments_number - show number of segments on volume. (2) blocks_per_segment - show number of blocks in segment. (3) clean_segments - show count of clean segments. (4) dirty_segments - show count of dirty segments. Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Michael L. Semon <mlsemon35@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08nilfs2: add /sys/fs/nilfs2/<device>/segctor groupVyacheslav Dubeyko
This patch adds creation of /sys/fs/nilfs2/<device>/segctor group. The segctor group contains attributes that describe segctor thread activity details: (1) last_pseg_block - show start block number of the latest segment. (2) last_seg_sequence - show sequence value of the latest segment. (3) last_seg_checkpoint - show checkpoint number of the latest segment. (4) current_seg_sequence - show segment sequence counter. (5) current_last_full_seg - show index number of the latest full segment. (6) next_full_seg - show index number of the full segment index to be used next. (7) next_pseg_offset - show offset of next partial segment in the current full segment. (8) next_checkpoint - show next checkpoint number. (9) last_seg_write_time - show write time of the last segment in human-readable format. (10) last_seg_write_time_secs - show write time of the last segment in seconds. (11) last_nongc_write_time - show write time of the last segment not for cleaner operation in human-readable format. (12) last_nongc_write_time_secs - show write time of the last segment not for cleaner operation in seconds. (13) dirty_data_blocks_count - show number of dirty data blocks. Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Michael L. Semon <mlsemon35@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08nilfs2: add /sys/fs/nilfs2/<device>/superblock groupVyacheslav Dubeyko
This patch adds creation of /sys/fs/nilfs2/<device>/superblock group. The superblock group contains attributes that describe superblock's details: (1) sb_write_time - show previous write time of super block in human-readable format. (2) sb_write_time_secs - show previous write time of super block in seconds. (3) sb_write_count - show write count of super block. (4) sb_update_frequency - show/set interval of periodical update of superblock (in seconds). You can set preferable frequency of superblock update by command: echo <value> > /sys/fs/nilfs2/<device>/superblock/sb_update_frequency Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Michael L. Semon <mlsemon35@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08nilfs2: add /sys/fs/nilfs2/<device> groupVyacheslav Dubeyko
This patch adds creation of /sys/fs/nilfs2/<device> group. The <device> group contains attributes that describe file system partition's details: (1) revision - show NILFS file system revision. (2) blocksize - show volume block size in bytes. (3) device_size - show volume size in bytes. (4) free_blocks - show count of free blocks on volume. (5) uuid - show volume's UUID. (6) volume_name - show volume's name. Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Michael L. Semon <mlsemon35@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08nilfs2: add /sys/fs/nilfs2/features groupVyacheslav Dubeyko
This patchset implements creation of sysfs groups and attributes with the purpose to show NILFS2 volume details, internal state of the driver and to manage internal state of NILFS2 driver. Sysfs is a virtual file system that exports information about devices and drivers from the kernel device model to user space, and is also used for configuration. NILFS2 is a complex file system that has segctor thread, GC thread, checkpoint/snapshot model and so on. Sysfs namespace provides native and easy way for: (1) getting info and statistics about volume state; (2) getting info and configuration of internal subsystems (segctor thread); (3) snapshots management. Suggested patchset provides basis for managing segctor thread behaviour and manipulation by snapshots. Currently, it informs only about segctor thread's internal parameters and about mounted snapshots. But sysfs interface can provide easy and simple way for deep management of segctor thread and snapshots. This patchset provides opportunity to manage interval of periodical update of superblock (in seconds). Default value is 10 seconds. Now a user can increase this value by means of nilfs2/<device>/superblock/sb_update_frequency attribute in the case of necessity. Also the patchset provides opportunity to get information easily about key volumes's parameters (free blocks, superblock write count, superblock update frequency, latest segment info, dirty data blocks count, count of clean segments, count of dirty segments and so on) in real time manner. Such information can be used in scripts for subtle management of filesystem. Implemented functionality creates such groups: (1) /sys/fs/nilfs2 - root group (2) /sys/fs/nilfs2/features - group contains attributes that describe NILFS file system driver features (3) /sys/fs/nilfs2/<device> - group contains attributes that describe file system partition's details (4) /sys/fs/nilfs2/<device>/superblock - group contains attributes that describe superblock's details (5) /sys/fs/nilfs2/<device>/segctor - group contains attributes that describe segctor thread activity details (6) /sys/fs/nilfs2/<device>/segments - group contains attributes that describe details about volume's segments (7) /sys/fs/nilfs2/<device>/checkpoints - group contains attributes that describe details about volume's checkpoints (8) /sys/fs/nilfs2/<device>/mounted_snapshots - group contains group for every mounted snapshot (9) /sys/fs/nilfs2/<device>/mounted_snapshots/<snapshot> - group contains details about mounted snapshot This patch (of 9): This patch adds code of creation /sys/fs/nilfs2 group and /sys/fs/nilfs2/features group. The features group contains attributes that describe NILFS file system driver features: (1) revision - show current revision of NILFS file system driver. There are two formats of timestamp output - seconds and human-readable format. Every showed timestamp has two sysfs files (time-<xxx> and time-<xxx>-secs). One sysfs file (time-<xxx>) shows time in human-readable format. Another sysfs file (time-<xxx>-secs) shows time in seconds. It was reported by Michael Semon that timestamp output in human-readable format should be changed from "2014-4-12 14:5:38" to "2014-04-12 14:05:38". Second version of the patch fixes this issue. Reported-by: Michael L. Semon <mlsemon35@gmail.com> Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08rtc: add pcf85063 supportSøren Andersen
Add support for the pcf85063 rtc chip. [akpm@linux-foundation.org: fix comment typo, tweak conding style] Signed-off-by: Soeren Andersen <san@rosetechnology.dk> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08mm: memcontrol: rewrite uncharge APIJohannes Weiner
The memcg uncharging code that is involved towards the end of a page's lifetime - truncation, reclaim, swapout, migration - is impressively complicated and fragile. Because anonymous and file pages were always charged before they had their page->mapping established, uncharges had to happen when the page type could still be known from the context; as in unmap for anonymous, page cache removal for file and shmem pages, and swap cache truncation for swap pages. However, these operations happen well before the page is actually freed, and so a lot of synchronization is necessary: - Charging, uncharging, page migration, and charge migration all need to take a per-page bit spinlock as they could race with uncharging. - Swap cache truncation happens during both swap-in and swap-out, and possibly repeatedly before the page is actually freed. This means that the memcg swapout code is called from many contexts that make no sense and it has to figure out the direction from page state to make sure memory and memory+swap are always correctly charged. - On page migration, the old page might be unmapped but then reused, so memcg code has to prevent untimely uncharging in that case. Because this code - which should be a simple charge transfer - is so special-cased, it is not reusable for replace_page_cache(). But now that charged pages always have a page->mapping, introduce mem_cgroup_uncharge(), which is called after the final put_page(), when we know for sure that nobody is looking at the page anymore. For page migration, introduce mem_cgroup_migrate(), which is called after the migration is successful and the new page is fully rmapped. Because the old page is no longer uncharged after migration, prevent double charges by decoupling the page's memcg association (PCG_USED and pc->mem_cgroup) from the page holding an actual charge. The new bits PCG_MEM and PCG_MEMSW represent the respective charges and are transferred to the new page during migration. mem_cgroup_migrate() is suitable for replace_page_cache() as well, which gets rid of mem_cgroup_replace_page_cache(). However, care needs to be taken because both the source and the target page can already be charged and on the LRU when fuse is splicing: grab the page lock on the charge moving side to prevent changing pc->mem_cgroup of a page under migration. Also, the lruvecs of both pages change as we uncharge the old and charge the new during migration, and putback may race with us, so grab the lru lock and isolate the pages iff on LRU to prevent races and ensure the pages are on the right lruvec afterward. Swap accounting is massively simplified: because the page is no longer uncharged as early as swap cache deletion, a new mem_cgroup_swapout() can transfer the page's memory+swap charge (PCG_MEMSW) to the swap entry before the final put_page() in page reclaim. Finally, page_cgroup changes are now protected by whatever protection the page itself offers: anonymous pages are charged under the page table lock, whereas page cache insertions, swapin, and migration hold the page lock. Uncharging happens under full exclusion with no outstanding references. Charging and uncharging also ensure that the page is off-LRU, which serializes against charge migration. Remove the very costly page_cgroup lock and set pc->flags non-atomically. [mhocko@suse.cz: mem_cgroup_charge_statistics needs preempt_disable] [vdavydov@parallels.com: fix flags definition] Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Hugh Dickins <hughd@google.com> Cc: Tejun Heo <tj@kernel.org> Cc: Vladimir Davydov <vdavydov@parallels.com> Tested-by: Jet Chen <jet.chen@intel.com> Acked-by: Michal Hocko <mhocko@suse.cz> Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Vladimir Davydov <vdavydov@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08mm: memcontrol: rewrite charge APIJohannes Weiner
These patches rework memcg charge lifetime to integrate more naturally with the lifetime of user pages. This drastically simplifies the code and reduces charging and uncharging overhead. The most expensive part of charging and uncharging is the page_cgroup bit spinlock, which is removed entirely after this series. Here are the top-10 profile entries of a stress test that reads a 128G sparse file on a freshly booted box, without even a dedicated cgroup (i.e. executing in the root memcg). Before: 15.36% cat [kernel.kallsyms] [k] copy_user_generic_string 13.31% cat [kernel.kallsyms] [k] memset 11.48% cat [kernel.kallsyms] [k] do_mpage_readpage 4.23% cat [kernel.kallsyms] [k] get_page_from_freelist 2.38% cat [kernel.kallsyms] [k] put_page 2.32% cat [kernel.kallsyms] [k] __mem_cgroup_commit_charge 2.18% kswapd0 [kernel.kallsyms] [k] __mem_cgroup_uncharge_common 1.92% kswapd0 [kernel.kallsyms] [k] shrink_page_list 1.86% cat [kernel.kallsyms] [k] __radix_tree_lookup 1.62% cat [kernel.kallsyms] [k] __pagevec_lru_add_fn After: 15.67% cat [kernel.kallsyms] [k] copy_user_generic_string 13.48% cat [kernel.kallsyms] [k] memset 11.42% cat [kernel.kallsyms] [k] do_mpage_readpage 3.98% cat [kernel.kallsyms] [k] get_page_from_freelist 2.46% cat [kernel.kallsyms] [k] put_page 2.13% kswapd0 [kernel.kallsyms] [k] shrink_page_list 1.88% cat [kernel.kallsyms] [k] __radix_tree_lookup 1.67% cat [kernel.kallsyms] [k] __pagevec_lru_add_fn 1.39% kswapd0 [kernel.kallsyms] [k] free_pcppages_bulk 1.30% cat [kernel.kallsyms] [k] kfree As you can see, the memcg footprint has shrunk quite a bit. text data bss dec hex filename 37970 9892 400 48262 bc86 mm/memcontrol.o.old 35239 9892 400 45531 b1db mm/memcontrol.o This patch (of 4): The memcg charge API charges pages before they are rmapped - i.e. have an actual "type" - and so every callsite needs its own set of charge and uncharge functions to know what type is being operated on. Worse, uncharge has to happen from a context that is still type-specific, rather than at the end of the page's lifetime with exclusive access, and so requires a lot of synchronization. Rewrite the charge API to provide a generic set of try_charge(), commit_charge() and cancel_charge() transaction operations, much like what's currently done for swap-in: mem_cgroup_try_charge() attempts to reserve a charge, reclaiming pages from the memcg if necessary. mem_cgroup_commit_charge() commits the page to the charge once it has a valid page->mapping and PageAnon() reliably tells the type. mem_cgroup_cancel_charge() aborts the transaction. This reduces the charge API and enables subsequent patches to drastically simplify uncharging. As pages need to be committed after rmap is established but before they are added to the LRU, page_add_new_anon_rmap() must stop doing LRU additions again. Revive lru_cache_add_active_or_unevictable(). [hughd@google.com: fix shmem_unuse] [hughd@google.com: Add comments on the private use of -EAGAIN] Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: Tejun Heo <tj@kernel.org> Cc: Vladimir Davydov <vdavydov@parallels.com> Signed-off-by: Hugh Dickins <hughd@google.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08Merge tag 'drivers-for-3.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver changes from Olof Johansson: "A handful of driver-related changes. We've had a bunch of them going in through other branches as well, so it's only a part of what we really have this release. Larger pieces are: - Removal of a now unused PWM driver for atmel [ This includes AVR32 changes that have been appropriately acked ] - Performance counter support for the arm CCN interconnect - OMAP mailbox driver cleanups and consolidation - PCI and SATA PHY drivers for SPEAr 13xx platforms - Redefinition (with backwards compatibility!) of PCI DT bindings for Tegra to better model regulators/power" Note: this merge also fixes up the semantic conflict with the new calling convention for devm_phy_create(), see commit f0ed817638b5 ("phy: core: Let node ptr of PHY point to PHY and not of PHY provider") that came in through Greg's USB tree. Semantic merge patch by Stephen Rothwell <sfr@canb.auug.org.au> through the next tree. * tag 'drivers-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits) bus: arm-ccn: Fix error handling at event allocation mailbox/omap: add a parent structure for every IP instance mailbox/omap: remove the private mailbox structure mailbox/omap: consolidate OMAP mailbox driver mailbox/omap: simplify the fifo assignment by using macros mailbox/omap: remove omap_mbox_type_t from mailbox ops mailbox/omap: remove OMAP1 mailbox driver mailbox/omap: use devm_* interfaces bus: ARM CCN: add PERF_EVENTS dependency bus: ARM CCN PMU driver PCI: spear: Remove spear13xx_pcie_remove() PCI: spear: Fix Section mismatch compilation warning for probe() ARM: tegra: Remove legacy PCIe power supply properties PCI: tegra: Remove deprecated power supply properties PCI: tegra: Implement accurate power supply scheme ARM: SPEAr13xx: Update defconfigs ARM: SPEAr13xx: Add pcie and miphy DT nodes ARM: SPEAr13xx: Add bindings and dt node for misc block ARM: SPEAr13xx: Fix static mapping table phy: Add drivers for PCIe and SATA phy on SPEAr13xx ...
2014-08-08Merge tag 'dt-for-3.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC device-tree changes from Olof Johansson: "Unlike the board branch, this keeps having large sets of changes for every release, but that's quite expected and is so far working well. Most of this is plumbing for various device bindings and new platforms, but there's also a bit of cleanup and code removal for things that are moved from platform code to DT contents (some OMAP clock code in particular). There's also a pinctrl driver for tegra here (appropriately acked), that's introduced this way to make it more bisectable. I'm happy to say that there were no conflicts at all with this branch this release, which means that changes are flowing through our tree as expected instead of merged through driver maintainers (or at least not done with conflicts). There are several new boards added, and a couple of SoCs. In no particular order: - Rockchip RK3288 SoC support, including DTS for a dev board that they have seeded with some community developers. - Better support for Hardkernel Exynos4-based ODROID boards. - CCF conversions (and dtsi contents) for several Renesas platforms. - Gumstix Pepper (TI AM335x) board support - TI eval board support for AM437x - Allwinner A23 SoC, very similar to existing ones which mostly has resulted in DT changes for support. Also includes support for an Ippo tablet with the chipset. - Allwinner A31 Hummingbird board support, not to be confused with the SolidRun i.MX-based Hummingboard. - Tegra30 Apalis board support" * tag 'dt-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (334 commits) ARM: dts: Enable USB host0 (EHCI) on rk3288-evb ARM: dts: add rk3288 ehci usb devices ARM: dts: Turn on USB host vbus on rk3288-evb ARM: tegra: apalis t30: fix device tree compatible node ARM: tegra: paz00: Fix some indentation inconsistencies ARM: zynq: DT: Clarify Xilinx Zynq platform ARM: dts: rockchip: add watchdog node ARM: dts: rockchip: remove pinctrl setting from radxarock uart2 ARM: dts: Add missing pinctrl for uart0/1 for exynos3250 ARM: dts: Remove duplicate 'interrput-parent' property for exynos3250 ARM: dts: Add TMU dt node to monitor the temperature for exynos3250 ARM: dts: Specify MAX77686 pmic interrupt for exynos5250-smdk5250 ARM: dts: cypress,cyapa trackpad is exynos5250-Snow only ARM: dts: max77686 is exynos5250-snow only ARM: zynq: DT: Remove DMA from board DTs ARM: zynq: DT: Add CAN node ARM: EXYNOS: Add exynos5260 PMU compatible string to DT match table ARM: dts: Add PMU DT node for exynos5260 SoC ARM: EXYNOS: Add support for Exynos5410 PMU ARM: dts: Add PMU to exynos5410 ...
2014-08-08Merge tag 'soc-for-3.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform changes from Olof Johansson: "This is the bulk of new SoC enablement and other platform changes for 3.17: - Samsung S5PV210 has been converted to DT and multiplatform - Clock drivers and bindings for some of the lower-end i.MX 1/2 platforms - Kirkwood, one of the popular Marvell platforms, is folded into the mvebu platform code, removing mach-kirkwood - Hwmod data for TI AM43xx and DRA7 platforms - More additions of Renesas shmobile platform support - Removal of plat-samsung contents that can be removed with S5PV210 being multiplatform/DT-enabled and the other two old platforms being removed New platforms (most with only basic support right now): - Hisilicon X5HD2 settop box chipset is introduced - Mediatek MT6589 (mobile chipset) is introduced - Broadcom BCM7xxx settop box chipset is introduced + as usual a lot other pieces all over the platform code" * tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (240 commits) ARM: hisi: remove smp from machine descriptor power: reset: move hisilicon reboot code ARM: dts: Add hix5hd2-dkb dts file. ARM: debug: Rename Hi3716 to HIX5HD2 ARM: hisi: enable hix5hd2 SoC ARM: hisi: add ARCH_HISI MAINTAINERS: add entry for Broadcom ARM STB architecture ARM: brcmstb: select GISB arbiter and interrupt drivers ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs ARM: configs: enable SMP in bcm_defconfig ARM: add SMP support for Broadcom mobile SoCs Documentation: arm: misc updates to Marvell EBU SoC status Documentation: arm: add URLs to public datasheets for the Marvell Armada XP SoC ARM: mvebu: fix build without platforms selected ARM: mvebu: add cpuidle support for Armada 38x ARM: mvebu: add cpuidle support for Armada 370 cpuidle: mvebu: add Armada 38x support cpuidle: mvebu: add Armada 370 support cpuidle: mvebu: rename the driver from armada-370-xp to mvebu-v7 ARM: mvebu: export the SCU address ...