- 01 12月, 2014 1 次提交
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由 Shaohua Li 提交于
We call blk_mq_alloc_tag_set() first then blk_mq_init_queue(). The requests are allocated in the former function. So the kdump check should be moved to there to really save memory. Signed-off-by: NShaohua Li <shli@fb.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 25 11月, 2014 2 次提交
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由 Jens Axboe 提交于
We only call __blk_mq_put_tag() and __blk_mq_put_reserved_tag() from blk_mq_put_tag(), so just inline the two calls instead of having them as separate functions. Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Jens Axboe 提交于
We currently use num_possible_cpus(), but that breaks on sparc64 where the CPU ID space is discontig. Use nr_cpu_ids as the highest CPU ID instead, so we don't end up reading from invalid memory. Cc: stable@kernel.org # 3.13+ Signed-off-by: NJens Axboe <axboe@fb.com>
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- 24 11月, 2014 2 次提交
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由 Gu Zheng 提交于
Many block drivers accounting io stat based on bio (e.g. NVMe...), the blk_account_io_start/end() which is based on request does not make sense to them, so here we introduce the similar help function named generic_start/end_io_acct base on raw sectors, and it can simplify some driver's open io accounting code. Signed-off-by: NGu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Christoph Hellwig 提交于
Don't duplicate the code to handle the not cpu bounce case in the caller, do it inside blk_mq_hctx_next_cpu instead. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 20 11月, 2014 1 次提交
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由 Jens Axboe 提交于
We can get here from blkdev_ioctl() -> blkpg_ioctl() -> add_partition() with a user passed in partno value. If we pass in 0x7fffffff, the new target in disk_expand_part_tbl() overflows the 'int' and we access beyond the end of ptbl->part[] and even write to it when we do the rcu_assign_pointer() to assign the new partition. Reported-by: NDavid Ramos <daramos@stanford.edu> Cc: stable@kernel.org Signed-off-by: NJens Axboe <axboe@fb.com>
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- 18 11月, 2014 2 次提交
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由 Jens Axboe 提交于
It's silly to use blk_mq_free_request() which in turn maps the request to the hardware queue, for places where we already know what the hardware queue is. This saves us an extra mapping of a hardware queue on request completion, if the caller knows this information already. Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Jens Axboe 提交于
Drivers that know they are blk-mq should just use this function instead of calling through blk_put_request(). Signed-off-by: NJens Axboe <axboe@fb.com>
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- 12 11月, 2014 2 次提交
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由 Paolo Bonzini 提交于
blk-mq is using preempt_disable/enable in order to ensure that the queue runners are placed on the right CPU. This does not work with the RT patches, because __blk_mq_run_hw_queue takes a non-raw spinlock with the preemption-disabled region. If there is contention on the lock, this violates the rules for preemption-disabled regions. While this should be easily fixable within the RT patches just by doing migrate_disable/enable, we can do better and document _why_ this particular region runs with disabled preemption. After the previous patch, it is trivial to switch it to get/put_cpu; the RT patches then can change it to get_cpu_light, which lets virtio-blk run under RT kernels. Cc: Jens Axboe <axboe@kernel.dk> Cc: Thomas Gleixner <tglx@linutronix.de> Reported-by: NClark Williams <williams@redhat.com> Tested-by: NClark Williams <williams@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Paolo Bonzini 提交于
preempt_disable/enable surrounds every call to blk_mq_run_hw_queue, except the one in blk-flush.c. In fact that one is always asynchronous, and it does not need smp_processor_id(). We can do the same for all other calls, avoiding preempt_disable when async is true. This avoids peppering blk-mq.c with preemption-disabled regions. Cc: Jens Axboe <axboe@kernel.dk> Cc: Thomas Gleixner <tglx@linutronix.de> Reported-by: NClark Williams <williams@redhat.com> Tested-by: NClark Williams <williams@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 05 11月, 2014 1 次提交
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由 Tejun Heo 提交于
After invoking ->dirty_inode(), __mark_inode_dirty() does smp_mb() and tests inode->i_state locklessly to see whether it already has all the necessary I_DIRTY bits set. The comment above the barrier doesn't contain any useful information - memory barriers can't ensure "changes are seen by all cpus" by itself. And it sure enough was broken. Please consider the following scenario. CPU 0 CPU 1 ------------------------------------------------------------------------------- enters __writeback_single_inode() grabs inode->i_lock tests PAGECACHE_TAG_DIRTY which is clear enters __set_page_dirty() grabs mapping->tree_lock sets PAGECACHE_TAG_DIRTY releases mapping->tree_lock leaves __set_page_dirty() enters __mark_inode_dirty() smp_mb() sees I_DIRTY_PAGES set leaves __mark_inode_dirty() clears I_DIRTY_PAGES releases inode->i_lock Now @inode has dirty pages w/ I_DIRTY_PAGES clear. This doesn't seem to lead to an immediately critical problem because requeue_inode() later checks PAGECACHE_TAG_DIRTY instead of I_DIRTY_PAGES when deciding whether the inode needs to be requeued for IO and there are enough unintentional memory barriers inbetween, so while the inode ends up with inconsistent I_DIRTY_PAGES flag, it doesn't fall off the IO list. The lack of explicit barrier may also theoretically affect the other I_DIRTY bits which deal with metadata dirtiness. There is no guarantee that a strong enough barrier exists between I_DIRTY_[DATA]SYNC clearing and write_inode() writing out the dirtied inode. Filesystem inode writeout path likely has enough stuff which can behave as full barrier but it's theoretically possible that the writeout may not see all the updates from ->dirty_inode(). Fix it by adding an explicit smp_mb() after I_DIRTY clearing. Note that I_DIRTY_PAGES needs a special treatment as it always needs to be cleared to be interlocked with the lockless test on __mark_inode_dirty() side. It's cleared unconditionally and reinstated after smp_mb() if the mapping still has dirty pages. Also add comments explaining how and why the barriers are paired. Lightly tested. Signed-off-by: NTejun Heo <tj@kernel.org> Cc: Jan Kara <jack@suse.cz> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: stable@vger.kernel.org Reviewed-by: NJan Kara <jack@suse.cz> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 04 11月, 2014 1 次提交
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由 Jan Kara 提交于
Explain that two requests can be merged without elevator_allow_merge_fn() being called. Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 30 10月, 2014 2 次提交
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由 Jens Axboe 提交于
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: NJens Axboe <axboe@fb.com>
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由 Jens Axboe 提交于
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: NJens Axboe <axboe@fb.com>
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- 22 10月, 2014 1 次提交
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由 Christoph Hellwig 提交于
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: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 21 10月, 2014 1 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4由 Linus Torvalds 提交于
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 ...
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- 20 10月, 2014 15 次提交
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由 Linus Torvalds 提交于
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc由 Linus Torvalds 提交于
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
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git://git.infradead.org/users/eparis/audit由 Linus Torvalds 提交于
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 ...
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由 Olof Johansson 提交于
Merge tag 'qcom-dt-for-3.18-3' of 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
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由 Olof Johansson 提交于
Merge tag 'samsung-fixes-2' of 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: NOlof Johansson <olof@lixom.net>
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由 Scott Branden 提交于
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: NScott Branden <sbranden@broadcom.com> Signed-off-by: NStephen Warren <swarren@wwwdotorg.org> Signed-off-by: NOlof Johansson <olof@lixom.net>
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git://github.com/jonmason/ntb由 Linus Torvalds 提交于
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
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux由 Linus Torvalds 提交于
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
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound由 Linus Torvalds 提交于
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
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input由 Linus Torvalds 提交于
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
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband由 Linus Torvalds 提交于
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 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
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 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc由 Linus Torvalds 提交于
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.
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net由 Linus Torvalds 提交于
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
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由 Andrew Lunn 提交于
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: NAndrew Lunn <andrew@lunn.ch> Fixes: 6819563e ("net: dsa: allow switch drivers to specify phy_device::dev_flags") Cc: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 19 10月, 2014 9 次提交
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由 David S. Miller 提交于
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: NMeelis Roos <mroos@linux.ee> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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 4ccb9272 ("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: 4ccb9272 ("sparc64: sun4v TLB error power off events") Reported-by: NMeelis Roos <mroos@linux.ee> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.infradead.org/users/vkoul/slave-dma由 Linus Torvalds 提交于
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 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux由 Linus Torvalds 提交于
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 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm由 Linus Torvalds 提交于
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
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git://git.linux-mips.org/pub/scm/ralf/upstream-linus由 Linus Torvalds 提交于
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 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux由 Linus Torvalds 提交于
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
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git://git.samba.org/sfrench/cifs-2.6由 Linus Torvalds 提交于
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
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git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm由 Linus Torvalds 提交于
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
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