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2014-11-04NVMe: Add revalidate_disk callbackKeith Busch1-0/+30
This adds a callback to revalidate the disk and change its block size and capacity if needed. Before, a user would have to remove + rescan an entire device if they changed the logical block size using an NVMe Format or other vendor specific command; now they can just run something that issues the BLKRRPART IOCTL, like # hdparm -z /dev/nvmeXnY This can also be used in response to the 1.2 Spec's Namespace Attribute Change asynchronous event. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Fix nvmeq waitqueue entry initializationKeith Busch1-7/+4
We need to update the nvme queue's wait_queue_t entry during each initialization since the nvme_thread may be ended and restarted when the device is reset. If a device reset occurs during a large amount of buffered IO, it would take a lot longer to complete the outstanding requests due to the 1 second polling instead of waking up as completions occur. Fixes: b9afca3efb18a9b8392cb544a3e29e8b1168400c Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Translate NVMe status to errnoKeith Busch1-1/+13
This returns a more appropriate error for the "capacity exceeded" status. In case other NVMe statuses have a better errno, this patch adds a convience function to translate an NVMe status code to an errno for IO commands, defaulting to the current -EIO. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Fix SG_IO status valuesKeith Busch1-0/+8
We've only been setting the sg_io_hdr status values on SCSI commands that require an nvme command to complete the translation. The fields in the struct are output parameters, so we have to set them, otherwise user space will see whatever was in memory from before. In the case of compat SG_IO, this would reveal kernel memory. This fixes the issue by initializing the sg_io_hdr with successful status. Signed-off-by: Keith Busch <keith.busch@intel.com> Acked-by: Vishal Verma <vishal.l.verma@linux.intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Remove duplicate compat SG_IO codeKeith Busch2-149/+1
We can return -ENOIOCTLCMD and the ioctl will be handled by fs/compat_ioctl.c instead. This removes a lot of duplicate code in the nvme driver. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Reference count pci deviceKeith Busch1-2/+5
If an nvme device is removed but user space has an open reference, the nvme driver would have been holding an invalid reference to its pci device. You may get a general protection fault on x86 h/w when the driver uses that reference in dma_map_sg(), as is done in nvme_map_user_pages() from the IOCTL interface. This patch fixes the fault by taking a reference on the pci device and holding it even after device removal until all opens on the nvme device are closed. Signed-off-by: Keith Busch <keith.busch@intel.com> Reported-by: Nilesh Choudhury <nilesh.choudhury@oracle.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04nvme: Replace rcu_assign_pointer() with RCU_INIT_POINTER()Andreea-Cristina Bernat1-1/+1
The use of "rcu_assign_pointer()" is NULLing out the pointer. According to RCU_INIT_POINTER()'s block comment: "1. This use of RCU_INIT_POINTER() is NULLing out the pointer" it is better to use it instead of rcu_assign_pointer() because it has a smaller overhead. The following Coccinelle semantic patch was used: @@ @@ - rcu_assign_pointer + RCU_INIT_POINTER (..., NULL) Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Correctly handle IOCTL_SUBMIT_IO when cpus > online queuesSam Bradshaw1-2/+2
nvme_submit_io_cmd() uses smp_processor_id() to pick an IO queue index. This patch fixes the case where there are more cpus from which the ioctl call can originate than online queues, which can happen when a device supports or was allocated fewer interrupt vectors than exist cpu cores. Thanks to Keith Busch for the implementation suggestion. Signed-off-by: Sam Bradshaw <sbradshaw@micron.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Fix filesystem sync deadlock on removalKeith Busch1-2/+2
This changes the order of deleting the gendisks so it happens after the nvme IO queues are freed. If a device is removed while a filesystem has associated dirty data, the removal will wait on these to complete before proceeding from del_gendisk, which could have caused deadlock before. The implication of this is that an orderly removal of a responsive device won't necessarily wait for dirty data to be written, but we are not guaranteed the device is even going to respond at this point either. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Call nvme_free_queue directlyKeith Busch1-7/+11
Rather than relying on call_rcu, this patch directly frees the nvme_queue's memory after ensuring no readers exist. Some arch specific dma_free_coherent implementations may not be called from a call_rcu's soft interrupt context, hence the change. Signed-off-by: Keith Busch <keith.busch@intel.com> Reported-by: Matthew Minter <matthew_minter@xyratex.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Add shutdown timeout as module parameter.Dan McLeran1-1/+6
The current implementation hard-codes the shutdown timeout to 2 seconds. Some devices take longer than this to complete a normal shutdown. Changing the shutdown timeout to a module parameter with a default timeout of 5 seconds. Signed-off-by: Dan McLeran <daniel.mcleran@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Skip orderly shutdown on failed devicesKeith Busch1-1/+4
Rather than skipping shutdown only for devices that have been removed, skip the orderly shutdown on failed devices to avoid the long timeout handling that inevitably happens when deleting queues on such a device. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Whitespace fixesKeith Busch1-5/+5
Fixing tabs inadvertently converted to spaces. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Use pci_stop_and_remove_bus_device_locked()Keith Busch1-1/+1
Race conditions are theoretically possible between the NVMe PCI device removal and the generic PCI bus rescan and device removal that can be triggered via sysfs. To avoid those race conditions make the NVMe code use pci_stop_and_remove_bus_device_locked(). Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Handling devices incapable of I/OKeith Busch1-11/+8
This is a minor refactor for handling devices that are incapable of IO. The driver previously used special error codes to know that IO queues are unavailable, but we have an online queue count now. This also fixes an issue where the driver successfully sets the queue count, but either is unable to allocate an IO queue or the device can't create one for some reason. If the driver can successfully enable the device and get responses to admin commands, the driver will bring up a character device for managment but not create block devices. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Change nvme_enable_ctrl to set EN and manage CC thru ctrl_config.Dan McLeran1-8/+12
Change the behavior of nvme_enable_ctrl to set EN. Clear CC.SH for both nvme_enable_ctrl and nvme_disable_ctrl. Remove reading of the CC register and manage the state in dev->ctrl_config. Signed-off-by: Dan McLeran <daniel.mcleran@intel.com> [removed an unwanted write to CC] Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Mismatched host/device page size supportKeith Busch2-19/+42
Adds support for devices with max page size smaller than the host's. In the case we encounter such a host/device combination, the driver will split a page into as many PRP entries as necessary for the device's page size capabilities. If the device's reported minimum page size is greater than the host's, the driver will not attempt to enable the device and return an error instead. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Update list of status codesMatthew Wilcox1-0/+14
Taken from the draft NVMe 1.1b specification. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04NVMe: Async event requestKeith Busch2-0/+43
Submits NVMe asynchronous event requests, one event up to the controller maximum or number of possible different event types (8), whichever is smaller. Events successfully returned by the controller are logged. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-11-04block: Use dma_zalloc_coherentJoe Perches1-3/+2
Use the zeroing function instead of dma_alloc_coherent & memset(,0,) Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-10-29blk-mq: add BLK_MQ_F_DEFER_ISSUE support flagJens Axboe2-1/+7
Drivers can now tell blk-mq if they take advantage of the deferred issue through 'last' or not. If they do, don't do queue-direct for sync IO. This is a preparation patch for the nvme conversion. Signed-off-by: Jens Axboe <axboe@fb.com>
2014-10-29blk-mq: add a 'list' parameter to ->queue_rq()Jens Axboe6-15/+49
Since we have the notion of a 'last' request in a chain, we can use this to have the hardware optimize the issuing of requests. Add a list_head parameter to queue_rq that the driver can use to temporarily store hw commands for issue when 'last' is true. If we are doing a chain of requests, pass in a NULL list for the first request to force issue of that immediately, then batch the remainder for deferred issue until the last request has been sent. Instead of adding yet another argument to the hot ->queue_rq path, encapsulate the passed arguments in a blk_mq_queue_data structure. This is passed as a constant, and has been tested as faster than passing 4 (or even 3) args through ->queue_rq. Update drivers for the new ->queue_rq() prototype. There are no functional changes in this patch for drivers - if they don't use the passed in list, then they will just queue requests individually like before. Signed-off-by: Jens Axboe <axboe@fb.com>
2014-10-22block: remove artifical max_hw_sectors capChristoph Hellwig3-5/+2
Set max_sectors to the value the drivers provides as hardware limit by default. Linux had proper I/O throttling for a long time and doesn't rely on a artifically small maximum I/O size anymore. By not limiting the I/O size by default we remove an annoying tuning step required for most Linux installation. Note that both the user, and if absolutely required the driver can still impose a limit for FS requests below max_hw_sectors_kb. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-10-20Merge tag 'ext4_for_linus' of ↵Linus Torvalds33-1883/+1488
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates from Ted Ts'o: "A large number of cleanups and bug fixes, with some (minor) journal optimizations" [ This got sent to me before -rc1, but was stuck in my spam folder. - Linus ] * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (67 commits) ext4: check s_chksum_driver when looking for bg csum presence ext4: move error report out of atomic context in ext4_init_block_bitmap() ext4: Replace open coded mdata csum feature to helper function ext4: delete useless comments about ext4_move_extents ext4: fix reservation overflow in ext4_da_write_begin ext4: add ext4_iget_normal() which is to be used for dir tree lookups ext4: don't orphan or truncate the boot loader inode ext4: grab missed write_count for EXT4_IOC_SWAP_BOOT ext4: optimize block allocation on grow indepth ext4: get rid of code duplication ext4: fix over-defensive complaint after journal abort ext4: fix return value of ext4_do_update_inode ext4: fix mmap data corruption when blocksize < pagesize vfs: fix data corruption when blocksize < pagesize for mmaped data ext4: fold ext4_nojournal_sops into ext4_sops ext4: support freezing ext2 (nojournal) file systems ext4: fold ext4_sync_fs_nojournal() into ext4_sync_fs() ext4: don't check quota format when there are no quota files jbd2: simplify calling convention around __jbd2_journal_clean_checkpoint_list jbd2: avoid pointless scanning of checkpoint lists ...
2014-10-20Linux 3.18-rc1v3.18-rc1Linus Torvalds1-2/+2
2014-10-20Merge tag 'arm-soc-fixes-rc1' of ↵Linus Torvalds20-20/+176
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "A batch of fixes that have come in during the merge window. Some of them are defconfig updates for things that have now landed, some errata additions and a few general scattered fixes. There's also a qcom DT update that adds support for SATA on AP148, and basic support for Sony Xperia Z1 and CM-QS600 platforms that seemed isolated enough that we could merge it even if it's late" * tag 'arm-soc-fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: MAINTAINERS: corrected bcm2835 search ARM: dts: Explicitly set dr_mode on exynos5420-arndale-octa ARM: dts: Explicitly set dr_mode on exynos Peach boards ARM: dts: qcom: add CM-QS600 board ARM: dts: qcom: Add initial DTS file for Sony Xperia Z1 phone ARM: dts: qcom: Add SATA support on IPQ8064/AP148 MAINTAINERS: Update Santosh Shilimkar's email id ARM: sunxi_defconfig: enable CONFIG_REGULATOR ARM: dts: Disable smc91x on n900 until bootloader dependency is removed ARM: omap2plus_defconfig: Enable ARM erratum 430973 for omap3 ARM: exynos_defconfig: enable USB gadget support ARM: exynos_defconfig: Enable Maxim 77693 and I2C GPIO drivers ARM: mm: Fix ifdef around cpu_*_do_[suspend, resume] ops ARM: EXYNOS: Fix build with PM_SLEEP=n and ARM_EXYNOS_CPUIDLE=n ARM: SAMSUNG: Restore Samsung PM Debug functionality ARM: dts: Fix pull setting in sd4_width8 pin group for exynos4x12 ARM: exynos_defconfig: Enable SBS battery support ARM: exynos_defconfig: Enable Control Groups support ARM: exynos_defconfig: Enable Atmel maXTouch support ARM: exynos_defconfig: Enable MAX77802
2014-10-20Merge git://git.infradead.org/users/eparis/auditLinus Torvalds43-180/+204
Pull audit updates from Eric Paris: "So this change across a whole bunch of arches really solves one basic problem. We want to audit when seccomp is killing a process. seccomp hooks in before the audit syscall entry code. audit_syscall_entry took as an argument the arch of the given syscall. Since the arch is part of what makes a syscall number meaningful it's an important part of the record, but it isn't available when seccomp shoots the syscall... For most arch's we have a better way to get the arch (syscall_get_arch) So the solution was two fold: Implement syscall_get_arch() everywhere there is audit which didn't have it. Use syscall_get_arch() in the seccomp audit code. Having syscall_get_arch() everywhere meant it was a useless flag on the stack and we could get rid of it for the typical syscall entry. The other changes inside the audit system aren't grand, fixed some records that had invalid spaces. Better locking around the task comm field. Removing some dead functions and structs. Make some things static. Really minor stuff" * git://git.infradead.org/users/eparis/audit: (31 commits) audit: rename audit_log_remove_rule to disambiguate for trees audit: cull redundancy in audit_rule_change audit: WARN if audit_rule_change called illegally audit: put rule existence check in canonical order next: openrisc: Fix build audit: get comm using lock to avoid race in string printing audit: remove open_arg() function that is never used audit: correct AUDIT_GET_FEATURE return message type audit: set nlmsg_len for multicast messages. audit: use union for audit_field values since they are mutually exclusive audit: invalid op= values for rules audit: use atomic_t to simplify audit_serial() kernel/audit.c: use ARRAY_SIZE instead of sizeof/sizeof[0] audit: reduce scope of audit_log_fcaps audit: reduce scope of audit_net_id audit: arm64: Remove the audit arch argument to audit_syscall_entry arm64: audit: Add audit hook in syscall_trace_enter/exit() audit: x86: drop arch from __audit_syscall_entry() interface sparc: implement is_32bit_task sparc: properly conditionalize use of TIF_32BIT ...
2014-10-20Merge tag 'qcom-dt-for-3.18-3' of ↵Olof Johansson6-1/+121
git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into fixes Merge "qcom DT changes for v3.18-3" from Kumar Gala: Qualcomm ARM Based Device Tree Updates for v3.18-3 * Added Board support for CM-QS600 and Sony Xperia Z1 phone * Added SATA support on IPQ8064/AP148 * tag 'qcom-dt-for-3.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom: ARM: dts: qcom: add CM-QS600 board ARM: dts: qcom: Add initial DTS file for Sony Xperia Z1 phone ARM: dts: qcom: Add SATA support on IPQ8064/AP148
2014-10-20Merge tag 'samsung-fixes-2' of ↵Olof Johansson4-2/+22
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes Pull more fixes from Kukjin Kim: 2nd Samsung fixes for v3.18 - Explicitly set dr_mode on exynos5800-peach-pi, exynos5420-peach-pit and exynos5420-arndale-octa boards, because the USB dwc3 controller will not work properly without dr_mode as host on above boards if the USB host and gadget are enabled in kernel configuration both. * tag 'samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: dts: Explicitly set dr_mode on exynos5420-arndale-octa ARM: dts: Explicitly set dr_mode on exynos Peach boards Signed-off-by: Olof Johansson <olof@lixom.net>
2014-10-20MAINTAINERS: corrected bcm2835 searchScott Branden1-6/+3
Corrected bcm2835 maintainer info by using N: to specify any files with bcm2835 in are directed to the proper maintainer. Also corrected minor mispelling of ARCHITECTURE in 2 comment locations. Signed-off-by: Scott Branden <sbranden@broadcom.com> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2014-10-19Merge tag 'ntb-3.18' of git://github.com/jonmason/ntbLinus Torvalds3-123/+501
Pull ntb (non-transparent bridge) updates from Jon Mason: "Add support for Haswell NTB split BARs, a debugfs entry for basic debugging info, and some code clean-ups" * tag 'ntb-3.18' of git://github.com/jonmason/ntb: ntb: Adding split BAR support for Haswell platforms ntb: use errata flag set via DID to implement workaround ntb: conslidate reading of PPD to move platform detection earlier ntb: move platform detection to separate function NTB: debugfs device entry
2014-10-19Merge branch 'i2c/for-next' of ↵Linus Torvalds19-51/+1404
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "Highlights from the I2C subsystem for 3.18: - new drivers for Axxia AM55xx, and Hisilicon hix5hd2 SoC. - designware driver gained AMD support, exynos gained exynos7 support The rest is usual driver stuff. Hopefully no lowlights this time" * 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: i801: Add Device IDs for Intel Sunrise Point PCH i2c: hix5hd2: add i2c controller driver i2c-imx: Disable the clock on probe failure i2c: designware: Add support for AMD I2C controller i2c: designware: Rework probe() to get clock a bit later i2c: designware: Default to fast mode in case of ACPI i2c: axxia: Add I2C driver for AXM55xx i2c: exynos: add support for HSI2C module on Exynos7 i2c: mxs: detect No Slave Ack on SELECT in PIO mode i2c: cros_ec: Remove EC_I2C_FLAG_10BIT i2c: cros-ec-tunnel: Add of match table i2c: rcar: remove sign-compare flaw i2c: ismt: Use minimum descriptor size i2c: imx: Add arbitration lost check i2c: rk3x: Remove unlikely() annotations i2c: rcar: check for no IRQ in rcar_i2c_irq() i2c: rcar: make rcar_i2c_prepare_msg() *void* i2c: rcar: simplify check for last message i2c: designware: add support of platform data to set I2C mode i2c: designware: add support of I2C standard mode
2014-10-19Merge tag 'sound-fix-3.18-rc1' of ↵Linus Torvalds4-7/+9
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Here are a collection of small fixes after 3.18 merge. The urgent one is the fix for kernel panics with linked PCM substream triggered by the recent nonatomic PCM ops support. Other two fixes (emu10k1 and bebob) are stable fixes, and one easy PCI ID addition for a new Intel HD-audio controller" * tag 'sound-fix-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda_intel: Add Device IDs for Intel Sunrise Point PCH ALSA: emu10k1: Fix deadlock in synth voice lookup ALSA: pcm: Fix referred substream in snd_pcm_action_group() unlock loop ALSA: bebob: Fix failure to detect source of clock for Terratec Phase 88
2014-10-19Merge branch 'for-linus' of ↵Linus Torvalds18-351/+280
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull second round of input updates from Dmitry Torokhov: "Mostly simple bug fixes, although we do have one brand new driver for Microchip AR1021 i2c touchscreen. Also there is the change to stop trying to use i8042 active multiplexing by default (it is still possible to activate it via i8042.nomux=0 on boxes that implement it)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: xpad - add Thrustmaster as Xbox 360 controller vendor Input: xpad - add USB ID for Thrustmaster Ferrari 458 Racing Wheel Input: max77693-haptic - fix state check in imax77693_haptic_disable() Input: xen-kbdfront - free grant table entry in xenkbd_disconnect_backend Input: alps - fix v4 button press recognition Input: i8042 - disable active multiplexing by default Input: i8042 - add noloop quirk for Asus X750LN Input: synaptics - gate forcepad support by DMI check Input: Add Microchip AR1021 i2c touchscreen Input: cros_ec_keyb - add of match table Input: serio - avoid negative serio device numbers Input: avoid negative input device numbers Input: automatically set EV_ABS bit in input_set_abs_params Input: adp5588-keys - cancel workqueue in failure path Input: opencores-kbd - switch to using managed resources Input: evdev - fix EVIOCG{type} ioctl
2014-10-19Merge tag 'rdma-for-linus' of ↵Linus Torvalds21-953/+1372
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull infiniband/RDMA updates from Roland Dreier: - large set of iSER initiator improvements - hardware driver fixes for cxgb4, mlx5 and ocrdma - small fixes to core midlayer * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (47 commits) RDMA/cxgb4: Fix ntuple calculation for ipv6 and remove duplicate line RDMA/cxgb4: Add missing neigh_release in find_route RDMA/cxgb4: Take IPv6 into account for best_mtu and set_emss RDMA/cxgb4: Make c4iw_wr_log_size_order static IB/core: Fix XRC race condition in ib_uverbs_open_qp IB/core: Clear AH attr variable to prevent garbage data RDMA/ocrdma: Save the bit environment, spare unncessary parenthesis RDMA/ocrdma: The kernel has a perfectly good BIT() macro - use it RDMA/ocrdma: Don't memset() buffers we just allocated with kzalloc() RDMA/ocrdma: Remove a unused-label warning RDMA/ocrdma: Convert kernel VA to PA for mmap in user RDMA/ocrdma: Get vlan tag from ib_qp_attrs RDMA/ocrdma: Add default GID at index 0 IB/mlx5, iser, isert: Add Signature API additions Target/iser: Centralize ib_sig_domain setting IB/iser: Centralize ib_sig_domain settings IB/mlx5: Use extended internal signature layout IB/iser: Set IP_CSUM as default guard type IB/iser: Remove redundant assignment IB/mlx5: Use enumerations for PI copy mask ...
2014-10-19Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds64-910/+882
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull more perf updates from Ingo Molnar: "A second (and last) round of late coming fixes and changes, almost all of them in perf tooling: User visible tooling changes: - Add period data column and make it default in 'perf script' (Jiri Olsa) - Add a visual cue for toggle zeroing of samples in 'perf top' (Taeung Song) - Improve callchains when using libunwind (Namhyung Kim) Tooling fixes and infrastructure changes: - Fix for double free in 'perf stat' when using some specific invalid command line combo (Yasser Shalabi) - Fix off-by-one bugs in map->end handling (Stephane Eranian) - Fix off-by-one bug in maps__find(), also related to map->end handling (Namhyung Kim) - Make struct symbol->end be the first addr after the symbol range, to make it match the convention used for struct map->end. (Arnaldo Carvalho de Melo) - Fix perf_evlist__add_pollfd() error handling in 'perf kvm stat live' (Jiri Olsa) - Fix python test build by moving callchain_param to an object linked into the python binding (Jiri Olsa) - Document sysfs events/ interfaces (Cody P Schafer) - Fix typos in perf/Documentation (Masanari Iida) - Add missing 'struct option' forward declaration (Arnaldo Carvalho de Melo) - Add option to copy events when queuing for sorting across cpu buffers and enable it for 'perf kvm stat live', to avoid having events left in the queue pointing to the ring buffer be rewritten in high volume sessions. (Alexander Yarygin, improving work done by David Ahern): - Do not include a struct hists per perf_evsel, untangling the histogram code from perf_evsel, to pave the way for exporting a minimalistic tools/lib/api/perf/ library usable by tools/perf and initially by the rasd daemon being developed by Borislav Petkov, Robert Richter and Jean Pihet. (Arnaldo Carvalho de Melo) - Make perf_evlist__open(evlist, NULL, NULL), i.e. without cpu and thread maps mean syswide monitoring, reducing the boilerplate for tools that only want system wide mode. (Arnaldo Carvalho de Melo) - Move exit stuff from perf_evsel__delete to perf_evsel__exit, delete should be just a front end for exit + free (Arnaldo Carvalho de Melo) - Add support to new style format of kernel PMU event. (Kan Liang) and other misc fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (45 commits) perf script: Add period as a default output column perf script: Add period data column perf evsel: No need to drag util/cgroup.h perf evlist: Add missing 'struct option' forward declaration perf evsel: Move exit stuff from __delete to __exit kprobes/x86: Remove stale ARCH_SUPPORTS_KPROBES_ON_FTRACE define perf kvm stat live: Enable events copying perf session: Add option to copy events when queueing perf Documentation: Fix typos in perf/Documentation perf trace: Use thread_{,_set}_priv helpers perf kvm: Use thread_{,_set}_priv helpers perf callchain: Create an address space per thread perf report: Set callchain_param.record_mode for future use perf evlist: Fix for double free in tools/perf stat perf test: Add test case for pmu event new style format perf tools: Add support to new style format of kernel PMU event perf tools: Parse the pmu event prefix and suffix Revert "perf tools: Default to cpu// for events v5" perf Documentation: Remove Ruplicated docs for powerpc cpu specific events perf Documentation: sysfs events/ interfaces ...
2014-10-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds3-7/+8
Pull sparc fixes from David Miller: "Here we have two bug fixes: 1) The current thread's fault_code is not setup properly upon entry to do_sparc64_fault() in some paths, leading to spurious SIGBUS. 2) Don't use a zero length array at the end of thread_info on sparc64, otherwise end_of_stack() isn't right" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Do not define thread fpregs save area as zero-length array. sparc64: Fix corrupted thread fault code.
2014-10-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds5-7/+10
Pull networking fixes from David Miller: "A quick batch of bug fixes: 1) Fix build with IPV6 disabled, from Eric Dumazet. 2) Several more cases of caching SKB data pointers across calls to pskb_may_pull(), thus referencing potentially free'd memory. From Li RongQing. 3) DSA phy code tests operation presence improperly, instead of going: if (x->ops->foo) r = x->ops->foo(args); it was going: if (x->ops->foo(args)) r = x->ops->foo(args); Fix from Andew Lunn" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: Net: DSA: Fix checking for get_phy_flags function ipv6: fix a potential use after free in sit.c ipv6: fix a potential use after free in ip6_offload.c ipv4: fix a potential use after free in gre_offload.c tcp: fix build error if IPv6 is not enabled
2014-10-19Net: DSA: Fix checking for get_phy_flags functionAndrew Lunn1-1/+1
The check for the presence or not of the optional switch function get_phy_flags() called the function, rather than checked to see if it is a NULL pointer. This causes a derefernce of a NULL pointer on all switch chips except the sf2, the only switch to implement this call. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Fixes: 6819563e646a ("net: dsa: allow switch drivers to specify phy_device::dev_flags") Cc: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-19sparc64: Do not define thread fpregs save area as zero-length array.David S. Miller1-1/+2
This breaks the stack end corruption detection facility. What that facility does it write a magic value to "end_of_stack()" and checking to see if it gets overwritten. "end_of_stack()" is "task_thread_info(p) + 1", which for sparc64 is the beginning of the FPU register save area. So once the user uses the FPU, the magic value is overwritten and the debug checks trigger. Fix this by making the size explicit. Due to the size we use for the fpsaved[], gsr[], and xfsr[] arrays we are limited to 7 levels of FPU state saves. So each FPU register set is 256 bytes, allocate 256 * 7 for the fpregs area. Reported-by: Meelis Roos <mroos@linux.ee> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-19sparc64: Fix corrupted thread fault code.David S. Miller2-6/+6
Every path that ends up at do_sparc64_fault() must install a valid FAULT_CODE_* bitmask in the per-thread fault code byte. Two paths leading to the label winfix_trampoline (which expects the FAULT_CODE_* mask in register %g4) were not doing so: 1) For pre-hypervisor TLB protection violation traps, if we took the 'winfix_trampoline' path we wouldn't have %g4 initialized with the FAULT_CODE_* value yet. Resulting in using the TLB_TAG_ACCESS register address value instead. 2) In the TSB miss path, when we notice that we are going to use a hugepage mapping, but we haven't allocated the hugepage TSB yet, we still have to take the window fixup case into consideration and in that particular path we leave %g4 not setup properly. Errors on this sort were largely invisible previously, but after commit 4ccb9272892c33ef1c19a783cfa87103b30c2784 ("sparc64: sun4v TLB error power off events") we now have a fault_code mask bit (FAULT_CODE_BAD_RA) that triggers due to this bug. FAULT_CODE_BAD_RA triggers because this bit is set in TLB_TAG_ACCESS (see #1 above) and thus we get seemingly random bus errors triggered for user processes. Fixes: 4ccb9272892c ("sparc64: sun4v TLB error power off events") Reported-by: Meelis Roos <mroos@linux.ee> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-19Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds50-692/+835
Pull slave-dmaengine updates from Vinod Koul: "For dmaengine contributions we have: - designware cleanup by Andy - my series moving device_control users to dmanegine_xxx APIs for later removal of device_control API - minor fixes spread over drivers mainly mv_xor, pl330, mmp, imx-sdma etc" * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (60 commits) serial: atmel: add missing dmaengine header dmaengine: remove FSLDMA_EXTERNAL_START dmaengine: freescale: remove FSLDMA_EXTERNAL_START control method carma-fpga: move to fsl_dma_external_start() carma-fpga: use dmaengine_xxx() API dmaengine: freescale: add and export fsl_dma_external_start() dmaengine: add dmaengine_prep_dma_sg() helper video: mx3fb: use dmaengine_terminate_all() API serial: sh-sci: use dmaengine_terminate_all() API net: ks8842: use dmaengine_terminate_all() API mtd: sh_flctl: use dmaengine_terminate_all() API mtd: fsmc_nand: use dmaengine_terminate_all() API V4L2: mx3_camer: use dmaengine_pause() API dmaengine: coh901318: use dmaengine_terminate_all() API pata_arasan_cf: use dmaengine_terminate_all() API dmaengine: edma: check for echan->edesc => NULL in edma_dma_pause() dmaengine: dw: export probe()/remove() and Co to users dmaengine: dw: enable and disable controller when needed dmaengine: dw: always export dw_dma_{en,dis}able dmaengine: dw: introduce dw_dma_on() helper ...
2014-10-19Merge tag 'fbdev-3.18' of ↵Linus Torvalds39-124/+3421
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull fbdev updates from Tomi Valkeinen: - new 6x10 font - various small fixes and cleanups * tag 'fbdev-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (30 commits) fonts: Add 6x10 font videomode: provide dummy inline functions for !CONFIG_OF video/atmel_lcdfb: Introduce regulator support fbdev: sh_mobile_hdmi: Re-init regs before irq re-enable on resume framebuffer: fix screen corruption when copying framebuffer: fix border color arm, fbdev, omap2, LLVMLinux: Remove nested function from omapfb arm, fbdev, omap2, LLVMLinux: Remove nested function from omap2 dss video: fbdev: valkyriefb.c: use container_of to resolve fb_info_valkyrie from fb_info video: fbdev: pxafb.c: use container_of to resolve pxafb_info/layer from fb_info video: fbdev: cyber2000fb.c: use container_of to resolve cfb_info from fb_info video: fbdev: controlfb.c: use container_of to resolve fb_info_control from fb_info video: fbdev: sa1100fb.c: use container_of to resolve sa1100fb_info from fb_info video: fbdev: stifb.c: use container_of to resolve stifb_info from fb_info video: fbdev: sis: sis_main.c: Cleaning up missing null-terminate in conjunction with strncpy video: valkyriefb: Fix unused variable warning in set_valkyrie_clock() video: fbdev: use %*ph specifier to dump small buffers video: mx3fb: always enable BACKLIGHT_LCD_SUPPORT video: fbdev: au1200fb: delete double assignment video: fbdev: sis: delete double assignment ...
2014-10-19Merge tag 'kvm-arm-for-3.18-take-2' of ↵Linus Torvalds11-86/+392
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm Pull second batch of changes for KVM/{arm,arm64} from Marc Zyngier: "The most obvious thing is the sizeable MMU changes to support 48bit VAs on arm64. Summary: - support for 48bit IPA and VA (EL2) - a number of fixes for devices mapped into guests - yet another VGIC fix for BE - a fix for CPU hotplug - a few compile fixes (disabled VGIC, strict mm checks)" [ I'm pulling directly from Marc at the request of Paolo Bonzini, whose backpack was stolen at Düsseldorf airport and will do new keys and rebuild his web of trust. - Linus ] * tag 'kvm-arm-for-3.18-take-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm: arm/arm64: KVM: Fix BE accesses to GICv2 EISR and ELRSR regs arm: kvm: STRICT_MM_TYPECHECKS fix for user_mem_abort arm/arm64: KVM: Ensure memslots are within KVM_PHYS_SIZE arm64: KVM: Implement 48 VA support for KVM EL2 and Stage-2 arm/arm64: KVM: map MMIO regions at creation time arm64: kvm: define PAGE_S2_DEVICE as read-only by default ARM: kvm: define PAGE_S2_DEVICE as read-only by default arm/arm64: KVM: add 'writable' parameter to kvm_phys_addr_ioremap arm/arm64: KVM: fix potential NULL dereference in user_mem_abort() arm/arm64: KVM: use __GFP_ZERO not memset() to get zeroed pages ARM: KVM: fix vgic-disabled build arm: kvm: fix CPU hotplug
2014-10-19Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds57-138/+274
Pull MIPS updates from Ralf Baechle: "This is the MIPS pull request for the next kernel: - Zubair's patch series adds CMA support for MIPS. Doing so it also touches ARM64 and x86. - remove the last instance of IRQF_DISABLED from arch/mips - updates to two of the MIPS defconfig files. - cleanup of how cache coherency bits are handled on MIPS and implement support for write-combining. - platform upgrades for Alchemy - move MIPS DTS files to arch/mips/boot/dts/" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (24 commits) MIPS: ralink: remove deprecated IRQF_DISABLED MIPS: pgtable.h: Implement the pgprot_writecombine function for MIPS MIPS: cpu-probe: Set the write-combine CCA value on per core basis MIPS: pgtable-bits: Define the CCA bit for WC writes on Ingenic cores MIPS: pgtable-bits: Move the CCA bits out of the core's ifdef blocks MIPS: DMA: Add cma support x86: use generic dma-contiguous.h arm64: use generic dma-contiguous.h asm-generic: Add dma-contiguous.h MIPS: BPF: Add new emit_long_instr macro MIPS: ralink: Move device-trees to arch/mips/boot/dts/ MIPS: Netlogic: Move device-trees to arch/mips/boot/dts/ MIPS: sead3: Move device-trees to arch/mips/boot/dts/ MIPS: Lantiq: Move device-trees to arch/mips/boot/dts/ MIPS: Octeon: Move device-trees to arch/mips/boot/dts/ MIPS: Add support for building device-tree binaries MIPS: Create common infrastructure for building built-in device-trees MIPS: SEAD3: Enable DEVTMPFS MIPS: SEAD3: Regenerate defconfigs MIPS: Alchemy: DB1300: Add touch penirq support ...
2014-10-19Merge branch 'for-linus' of ↵Linus Torvalds1-1/+5
git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux Pull powerpc fix from Michael Ellerman: "There was a bit of a misunderstanding between us and the ARM guys in the device tree PCI code, which is breaking virtio on powerpc. This is the minimal fix until we can sort it out properly" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: powerpc/pci: Fix IO space breakage after of_pci_range_to_resource() change
2014-10-19Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds20-171/+489
Pull cifs/smb3 updates from Steve French: "Improved SMB3 support (symlink and device emulation, and remapping by default the 7 reserved posix characters) and a workaround for cifs mounts to Mac (working around a commonly encountered Mac server bug)" * 'for-linus' of git://git.samba.org/sfrench/cifs-2.6: [CIFS] Remove obsolete comment Check minimum response length on query_network_interface Workaround Mac server problem Remap reserved posix characters by default (part 3/3) Allow conversion of characters in Mac remap range (part 2) Allow conversion of characters in Mac remap range. Part 1 mfsymlinks support for SMB2.1/SMB3. Part 2 query symlink Add mfsymlinks support for SMB2.1/SMB3. Part 1 create symlink Allow mknod and mkfifo on SMB2/SMB3 mounts add defines for two new file attributes
2014-10-19Merge tag 'dlm-3.18' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm Pull dlm fix from David Teigland: "This includes a single commit fixing a missing endian conversion" * tag 'dlm-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: dlm: fix missing endian conversion of rcom_status flags
2014-10-19Merge branch 'for-linus-update' of ↵Linus Torvalds2-36/+33
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs data corruption fix from Chris Mason: "I'm testing a pull with more fixes, but wanted to get this one out so Greg can pick it up. The corruption isn't easy to hit, you have to do a readonly snapshot and have orphans in the snapshot. But my review and testing missed the bug. Filipe has added a better xfstest to cover it" * 'for-linus-update' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Revert "Btrfs: race free update of commit root for ro snapshots"
2014-10-19Merge tag 'please-pull-pstore' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux Pull pstore fix from Tony Luck: "Ensure unique filenames in pstore" * tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: pstore: Fix duplicate {console,ftrace}-efi entries